author  Ryan C. Gordon <icculus@icculus.org> 
Fri, 12 Dec 2008 00:58:10 0500  
changeset 503  ec8e7739cf5d 
parent 502  3cb501248990 
child 504  d79ae3b98f47 
permissions  rwrr 
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/** 
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* MojoShader; generate shader programs from bytecode of compiled 
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* Direct3D shaders. 
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* 
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* Please see the file LICENSE.txt in the source's root directory. 
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* 
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* This file written by Ryan C. Gordon. 
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*/ 
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#define __MOJOSHADER_INTERNAL__ 1 
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#include "mojoshader_internal.h" 
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#define DEBUG_TOKENIZER 0 
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498  15 
// !!! FIXME: no #define support yet. 
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typedef struct Context Context; 
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// Context...this is state that changes as we assemble a shader... 
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struct Context 
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{ 
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MOJOSHADER_malloc malloc; 
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MOJOSHADER_free free; 
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void *malloc_data; 
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const char *failstr; 
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const char *source; 
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int started_parsing; 
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MOJOSHADER_shaderType shader_type; 
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uint8 major_ver; 
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uint8 minor_ver; 
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int on_endline; 
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unsigned int linenum; 
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char prevchar; 
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char token[64]; 
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char pushedback; 
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char pushback_token[64]; 
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uint32 tokenbuf[16]; 
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int tokenbufpos; 
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DestArgInfo dest_arg; 
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uint32 *output; 
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uint32 *token_to_line; 
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size_t output_len; 
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size_t output_allocation; 
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}; 
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// Convenience functions for allocators... 
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static inline int out_of_memory(Context *ctx) 
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{ 
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if (ctx>failstr == NULL) 
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ctx>failstr = out_of_mem_str; // fail() would call malloc(). 
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return FAIL; 
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} // out_of_memory 
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static inline void *Malloc(Context *ctx, const size_t len) 
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{ 
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void *retval = ctx>malloc((int) len, ctx>malloc_data); 
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if (retval == NULL) 
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out_of_memory(ctx); 
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return retval; 
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} // Malloc 
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static inline void Free(Context *ctx, void *ptr) 
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{ 
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if (ptr != NULL) // check for NULL in case of dumb free() impl. 
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ctx>free(ptr, ctx>malloc_data); 
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} // Free 
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static int failf(Context *ctx, const char *fmt, ...) ISPRINTF(2,3); 
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static int failf(Context *ctx, const char *fmt, ...) 
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{ 
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if (ctx>failstr == NULL) // don't change existing error. 
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{ 
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char scratch = 0; 
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va_list ap; 
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va_start(ap, fmt); 
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const int len = vsnprintf(&scratch, sizeof (scratch), fmt, ap); 
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va_end(ap); 
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char *failstr = (char *) Malloc(ctx, len + 1); 
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if (failstr != NULL) 
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{ 
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va_start(ap, fmt); 
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vsnprintf(failstr, len + 1, fmt, ap); // rebuild it. 
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va_end(ap); 
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ctx>failstr = failstr; 
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} // if 
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} // if 
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return FAIL; 
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} // failf 
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static inline int fail(Context *ctx, const char *reason) 
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{ 
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return failf(ctx, "%s", reason); 
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} // fail 
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static inline int isfail(const Context *ctx) 
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{ 
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return (ctx>failstr != NULL); 
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} // isfail 
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// Shader model version magic... 
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static inline uint32 ver_ui32(const uint8 major, const uint8 minor) 
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{ 
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return ( (((uint32) major) << 16)  (((minor) == 0xFF) ? 0 : (minor)) ); 
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} // version_ui32 
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static inline int shader_version_atleast(const Context *ctx, const uint8 maj, 
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const uint8 min) 
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{ 
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return (ver_ui32(ctx>major_ver, ctx>minor_ver) >= ver_ui32(maj, min)); 
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} // shader_version_atleast 
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static inline int shader_is_pixel(const Context *ctx) 
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{ 
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return (ctx>shader_type == MOJOSHADER_TYPE_PIXEL); 
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} // shader_is_pixel 
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static inline int shader_is_vertex(const Context *ctx) 
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{ 
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return (ctx>shader_type == MOJOSHADER_TYPE_VERTEX); 
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} // shader_is_vertex 
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static int ui32fromstr(const char *str, uint32 *ui32) 
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{ 
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//*ui32 = (uint32) atoi(minstr); 
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char *endptr = NULL; 
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const long val = strtol(str, &endptr, 10); 
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*ui32 = (uint32) val; 
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return ((val >= 0) && (*str != '\0') && (*endptr == '\0')); 
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} // ui32fromstr 
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137 

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138 

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139 
static void output_token_noswap(Context *ctx, const uint32 token) 
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{ 
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141 
if (isfail(ctx)) 
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142 
return; 
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143 

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144 
if (ctx>output_len >= ctx>output_allocation) 
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{ 
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const size_t output_alloc_bump = 1024; // that's tokens, not bytes. 
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const size_t newsize = ctx>output_allocation + output_alloc_bump; 
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148 
void *ptr; 
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149 

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ptr = Malloc(ctx, newsize * sizeof (uint32)); 
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if (ptr == NULL) 
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return; 
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if (ctx>output_len > 0) 
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memcpy(ptr, ctx>output, ctx>output_len * sizeof (uint32)); 
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Free(ctx, ctx>output); 
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ctx>output = (uint32 *) ptr; 
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157 

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ptr = Malloc(ctx, newsize * sizeof (uint32)); 
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if (ptr == NULL) 
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160 
return; 
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161 
if (ctx>output_len > 0) 
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162 
memcpy(ptr, ctx>token_to_line, ctx>output_len * sizeof (uint32)); 
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Free(ctx, ctx>token_to_line); 
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ctx>token_to_line = (uint32 *) ptr; 
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165 

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ctx>output_allocation = newsize; 
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} // if 
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168 

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169 
ctx>output[ctx>output_len] = token; 
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ctx>token_to_line[ctx>output_len] = ctx>linenum; 
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ctx>output_len++; 
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172 
} // output_token_noswap 
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173 

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174 

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175 
static inline void output_token(Context *ctx, const uint32 token) 
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{ 
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177 
output_token_noswap(ctx, SWAP32(token)); 
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178 
} // output_token 
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179 

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180 

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181 
static void output_comment_bytes(Context *ctx, const uint8 *buf, size_t len) 
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182 
{ 
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183 
if (len > (0xFFFF * 4)) // length is stored as token count, in 16 bits. 
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184 
fail(ctx, "Comment field is too big"); 
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185 
else if (!isfail(ctx)) 
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186 
{ 
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187 
const uint32 tokencount = (len / 4) + ((len % 4) ? 1 : 0); 
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188 
output_token(ctx, 0xFFFE  (tokencount << 16)); 
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189 
while (len >= 4) 
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190 
{ 
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191 
output_token_noswap(ctx, *((const uint32 *) buf)); 
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192 
len = 4; 
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193 
buf += 4; 
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194 
} // while 
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195 

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196 
if (len > 0) // handle spillover... 
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197 
{ 
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198 
union { uint8 ui8[4]; uint32 ui32; } overflow; 
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199 
overflow.ui32 = 0; 
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200 
memcpy(overflow.ui8, buf, len); 
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201 
output_token_noswap(ctx, overflow.ui32); 
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202 
} // if 
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203 
} // else if 
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204 
} // output_comment_bytes 
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205 

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206 

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207 
static inline void output_comment_string(Context *ctx, const char *str) 
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208 
{ 
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209 
output_comment_bytes(ctx, (const uint8 *) str, strlen(str)); 
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210 
} // output_comment_string 
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211 

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212 

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213 
static int _tokenize(Context *ctx) 
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214 
{ 
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215 
int idx = 0; 
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216 

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217 
if (isfail(ctx)) 
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218 
return FAIL; 
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219 

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220 
if (ctx>pushedback) 
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221 
{ 
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222 
ctx>pushedback = 0; 
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223 
return NOFAIL; 
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224 
} // if 
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225 

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226 
if (ctx>on_endline) 
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227 
{ 
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228 
ctx>on_endline = 0; 
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229 
ctx>linenum++; // passed a newline, update. 
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230 
} // if 
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231 

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232 
while (1) 
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233 
{ 
477  234 
// !!! FIXME: carefully crafted (but legal) comments can trigger this. 
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235 
if (idx >= sizeof (ctx>token)) 
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236 
return fail(ctx, "buffer overflow"); 
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237 

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238 
char ch = *ctx>source; 
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239 
if (ch == '\t') 
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240 
ch = ' '; // collapse tabs into single spaces. 
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241 
else if (ch == '\r') 
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242 
{ 
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243 
if (ctx>source[1] == '\n') 
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244 
continue; // ignore '\r' if this is "\r\n" ... 
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245 
ch = '\n'; 
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246 
} // else if 
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247 

478
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248 
if ((ch >= '0') && (ch <= '9')) 
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249 
{ 
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250 
// starting a number, but rest of current token was not number. 
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251 
if ((idx > 0) && ((ctx>prevchar < '0')  (ctx>prevchar > '9'))) 
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252 
{ 
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253 
ctx>token[idx++] = '\0'; 
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254 
return NOFAIL; 
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255 
} // if 
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256 
} // if 
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257 
else 
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258 
{ 
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259 
// starting a nonnumber, but rest of current token was numbers. 
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260 
if ((idx > 0) && ((ctx>prevchar >= '0') && (ctx>prevchar <= '9'))) 
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261 
{ 
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262 
ctx>token[idx++] = '\0'; 
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263 
return NOFAIL; 
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264 
} // if 
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265 
} // else 
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266 

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267 
switch (ch) 
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268 
{ 
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269 
case '/': 
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270 
case ';': // !!! FIXME: comment, right? 
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271 
if (idx != 0) // finish off existing token. 
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272 
ctx>token[idx] = '\0'; 
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273 
else 
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274 
{ 
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275 
ctx>token[idx++] = ch; 
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276 
ctx>source++; 
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277 
if ((ch == '/') && (*ctx>source == '/')) 
465
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278 
{ 
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279 
ctx>token[idx++] = '/'; 
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280 
ctx>source++; 
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281 
} // if 
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282 
ctx>token[idx++] = '\0'; 
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283 
} // else 
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284 
return NOFAIL; 
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285 

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286 
case ' ': 
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287 
if (ctx>prevchar == ' ') 
465
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288 
break; // multiple whitespace collapses into one. 
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289 
// intentional fallthrough... 
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290 

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291 
case '_': 
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292 
case '[': 
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293 
case ']': 
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294 
case '(': 
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295 
case ')': 
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296 
case '!': 
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297 
case '+': 
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298 
case '': 
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299 
case ',': 
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300 
case '.': 
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301 
case '\n': 
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302 
if (idx != 0) // finish off existing token. 
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303 
ctx>token[idx] = '\0'; 
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304 
else // this is a token in itself. 
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305 
{ 
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306 
if (ch == '\n') 
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307 
ctx>on_endline = 1; 
465
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308 
ctx>source++; 
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309 
ctx>token[idx++] = ch; 
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310 
ctx>token[idx++] = '\0'; 
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311 
} // else 
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312 
return NOFAIL; 
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313 

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314 
case '\0': 
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315 
ctx>token[idx] = '\0'; 
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316 
if (idx != 0) // had any chars? It's a token. 
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317 
return NOFAIL; 
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318 
return END_OF_STREAM; 
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319 

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320 
default: 
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321 
ctx>source++; 
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322 
ctx>token[idx++] = ch; 
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323 
break; 
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324 
} // switch 
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325 

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326 
ctx>prevchar = ch; 
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327 
} // while 
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328 

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329 
return fail(ctx, "???"); // shouldn't hit this. 
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330 
} // _tokenize 
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331 

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332 

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333 
static inline int tokenize(Context *ctx) 
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334 
{ 
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335 
const int rc = _tokenize(ctx); 
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336 
#if DEBUG_TOKENIZER 
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337 
printf("TOKENIZE: %s '%s'\n", 
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338 
(rc == END_OF_STREAM) ? "END_OF_STREAM" : 
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339 
(rc == FAIL) ? "FAIL" : 
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340 
(rc == NOFAIL) ? "NOFAIL" : "???", 
495
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341 
(ctx>token[0] == '\n') ? "\\n" : ctx>token); 
465
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342 
#endif 
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343 
return rc; 
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344 
} // tokenize 
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345 

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346 

490
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347 
static inline int pushback(Context *ctx) 
465
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348 
{ 
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349 
#if DEBUG_TOKENIZER 
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350 
printf("PUSHBACK\n"); 
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351 
#endif 
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352 

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353 
if (ctx>pushedback) 
490
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354 
return fail(ctx, "BUG: Double pushback in parser"); 
465
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355 
else 
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356 
ctx>pushedback = 1; 
490
14b6586d9c43
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Ryan C. Gordon <icculus@icculus.org>
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489
diff
changeset

357 

14b6586d9c43
Fixed parsing of DCL instructions.
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diff
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358 
return NOFAIL; 
465
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359 
} // pushback 
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360 

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361 

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362 
static int nexttoken(Context *ctx, const int ignoreeol, 
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363 
const int ignorewhitespace, const int eolok, 
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364 
const int eosok) 
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365 
{ 
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366 
int rc = NOFAIL; 
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367 

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368 
while ((rc = tokenize(ctx)) == NOFAIL) 
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369 
{ 
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370 
if (strcmp(ctx>token, "\n") == 0) 
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371 
{ 
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372 
if (ignoreeol) 
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373 
continue; 
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374 
else if (!eolok) 
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375 
return fail(ctx, "Unexpected EOL"); 
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376 
} // if 
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diff
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377 

0a75f98f785b
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378 
else if (strcmp(ctx>token, " ") == 0) 
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379 
{ 
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380 
if (ignorewhitespace) 
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381 
continue; 
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382 
} // else if 
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parents:
diff
changeset

383 

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384 
// skip comments... 
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385 
else if ((strcmp(ctx>token, "//") == 0)  (strcmp(ctx>token, ";") == 0)) 
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diff
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386 
{ 
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diff
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387 
while ((rc = tokenize(ctx)) == NOFAIL) 
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diff
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388 
{ 
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diff
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389 
if (strcmp(ctx>token, "\n") == 0) 
479
f7beff48de5e
nexttoken() needs to report the ending newline when throwing away comments.
Ryan C. Gordon <icculus@icculus.org>
parents:
478
diff
changeset

390 
{ 
f7beff48de5e
nexttoken() needs to report the ending newline when throwing away comments.
Ryan C. Gordon <icculus@icculus.org>
parents:
478
diff
changeset

391 
pushback(ctx); 
465
0a75f98f785b
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parents:
diff
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392 
break; 
479
f7beff48de5e
nexttoken() needs to report the ending newline when throwing away comments.
Ryan C. Gordon <icculus@icculus.org>
parents:
478
diff
changeset

393 
} // if 
465
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diff
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394 
} // while 
479
f7beff48de5e
nexttoken() needs to report the ending newline when throwing away comments.
Ryan C. Gordon <icculus@icculus.org>
parents:
478
diff
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395 
continue; // pick up from newline, go again. 
465
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diff
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396 
} // if 
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parents:
diff
changeset

397 

0a75f98f785b
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parents:
diff
changeset

398 
break; 
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parents:
diff
changeset

399 
} // while 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

400 

0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

401 
#if DEBUG_TOKENIZER 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

402 
printf("NEXTTOKEN: %s '%s'\n", 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

403 
(rc == END_OF_STREAM) ? "END_OF_STREAM" : 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

404 
(rc == FAIL) ? "FAIL" : 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

405 
(rc == NOFAIL) ? "NOFAIL" : "???", 
495
93ede2fba3c6
Made debug output more readable.
Ryan C. Gordon <icculus@icculus.org>
parents:
492
diff
changeset

406 
(ctx>token[0] == '\n') ? "\\n" : ctx>token); 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

407 
#endif 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

408 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

409 
if ((rc == END_OF_STREAM) && (!eosok)) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

410 
return fail(ctx, "Unexpected EOF"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

411 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

412 
return rc; 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

413 
} // nexttoken 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

414 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

415 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

416 
static int require_endline(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

417 
{ 
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Initial work on assembler. Not even close to done.
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parents:
diff
changeset

418 
const int rc = nexttoken(ctx, 0, 1, 1, 1); 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

419 
if (rc == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

420 
return FAIL; 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

421 
else if (rc == END_OF_STREAM) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

422 
return NOFAIL; // we'll call this an EOL. 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

423 
else if (strcmp(ctx>token, "\n") != 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

424 
return fail(ctx, "Endline expected"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

425 
return NOFAIL; 
0a75f98f785b
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

426 
} // require_endline 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

427 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

428 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

429 
static int require_comma(Context *ctx) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

430 
{ 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

431 
const int rc = nexttoken(ctx, 0, 1, 0, 0); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

432 
if (rc == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

433 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

434 
else if (strcmp(ctx>token, ",") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

435 
return fail(ctx, "Comma expected"); 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

436 
return NOFAIL; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

437 
} // require_comma 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

438 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

439 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

440 
static int parse_register_name(Context *ctx, RegisterType *rtype, int *rnum) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

441 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

442 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

443 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

444 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

445 
// !!! FIXME: some of these registers are only valid for some shader types. 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

446 
int neednum = 1; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

447 
int regnum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

448 
const char *t = ctx>token; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

449 
RegisterType regtype = REG_TYPE_TEMP; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

450 
if (strcasecmp(t, "r") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

451 
regtype = REG_TYPE_TEMP; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

452 
else if (strcasecmp(t, "v") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

453 
regtype = REG_TYPE_INPUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

454 
else if (strcasecmp(t, "c") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

455 
regtype = REG_TYPE_CONST; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

456 
else if (strcasecmp(t, "i") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

457 
regtype = REG_TYPE_CONSTINT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

458 
else if (strcasecmp(t, "b") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

459 
regtype = REG_TYPE_CONSTBOOL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

460 
else if (strcasecmp(t, "oC") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

461 
regtype = REG_TYPE_COLOROUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

462 
else if (strcasecmp(t, "oDepth") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

463 
regtype = REG_TYPE_DEPTHOUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

464 
else if (strcasecmp(t, "s") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

465 
regtype = REG_TYPE_SAMPLER; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

466 
else if (strcasecmp(t, "oD") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

467 
regtype = REG_TYPE_ATTROUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

468 
else if (strcasecmp(t, "l") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

469 
regtype = REG_TYPE_LABEL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

470 
else if (strcasecmp(t, "p") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

471 
regtype = REG_TYPE_PREDICATE; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

472 
else if (strcasecmp(t, "aL") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

473 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

474 
regtype = REG_TYPE_LOOP; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

475 
neednum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

476 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

477 
else if (strcasecmp(t, "o") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

478 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

479 
if (!shader_is_vertex(ctx)  !shader_version_atleast(ctx, 3, 0)) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

480 
return fail(ctx, "Output register not valid in this shader type"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

481 
regtype = REG_TYPE_OUTPUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

482 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

483 
else if (strcasecmp(t, "oT") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

484 
{ 
502
3cb501248990
Fixed logic error in assembler, to decide if oTx registers are available.
Ryan C. Gordon <icculus@icculus.org>
parents:
500
diff
changeset

485 
if (shader_is_vertex(ctx) && shader_version_atleast(ctx, 3, 0)) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

486 
return fail(ctx, "Output register not valid in this shader type"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

487 
regtype = REG_TYPE_OUTPUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

488 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

489 
else if (strcasecmp(t, "a") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

490 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

491 
if (!shader_is_vertex(ctx)) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

492 
return fail(ctx, "Address register only valid in vertex shaders."); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

493 
regtype = REG_TYPE_ADDRESS; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

494 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

495 
else if (strcasecmp(t, "t") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

496 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

497 
if (!shader_is_pixel(ctx)) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

498 
return fail(ctx, "Address register only valid in pixel shaders."); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

499 
regtype = REG_TYPE_ADDRESS; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

500 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

501 
else if (strcasecmp(t, "vPos") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

502 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

503 
regtype = REG_TYPE_MISCTYPE; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

504 
regnum = (int) MISCTYPE_TYPE_POSITION; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

505 
neednum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

506 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

507 
else if (strcasecmp(t, "vFace") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

508 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

509 
regtype = REG_TYPE_MISCTYPE; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

510 
regnum = (int) MISCTYPE_TYPE_FACE; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

511 
neednum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

512 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

513 
else if (strcasecmp(t, "oPos") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

514 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

515 
regtype = REG_TYPE_RASTOUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

516 
regnum = (int) RASTOUT_TYPE_POSITION; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

517 
neednum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

518 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

519 
else if (strcasecmp(t, "oFog") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

520 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

521 
regtype = REG_TYPE_RASTOUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

522 
regnum = (int) RASTOUT_TYPE_FOG; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

523 
neednum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

524 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

525 
else if (strcasecmp(t, "oPts") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

526 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

527 
regtype = REG_TYPE_RASTOUT; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

528 
regnum = (int) RASTOUT_TYPE_POINT_SIZE; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

529 
neednum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

530 
} // else if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

531 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

532 
//case REG_TYPE_TEMPFLOAT16: // !!! FIXME: don't know this asm string 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

533 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

534 
else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

535 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

536 
return fail(ctx, "expected register type"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

537 
} // else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

538 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

539 
if (neednum) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

540 
{ 
482
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

541 
// cheat the pushback. 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

542 
const char *origsrc = ctx>source; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

543 
const int origonendline = ctx>on_endline; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

544 
const int origlinenum = ctx>linenum; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

545 
const int origprevchar = ctx>prevchar; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

546 

3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

547 
if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

548 
return FAIL; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

549 
else if (strcmp(ctx>token, "[") == 0) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

550 
neednum = 0; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

551 

3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

552 
ctx>source = origsrc; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

553 
ctx>on_endline = origonendline; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

554 
ctx>linenum = origlinenum; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

555 
ctx>prevchar = origprevchar; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

556 
} // if 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

557 

3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

558 
if (neednum) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

559 
{ 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

560 
if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

561 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

562 

482
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

563 
uint32 ui32 = 0; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

564 
if (!ui32fromstr(ctx>token, &ui32)) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

565 
return fail(ctx, "Invalid register index"); 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

566 
regnum = (int) ui32; 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

567 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

568 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

569 
// split up REG_TYPE_CONST 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

570 
if (regtype == REG_TYPE_CONST) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

571 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

572 
if (regnum < 2048) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

573 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

574 
regtype = REG_TYPE_CONST; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

575 
regnum = 0; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

576 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

577 
else if (regnum < 4096) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

578 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

579 
regtype = REG_TYPE_CONST2; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

580 
regnum = 2048; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

581 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

582 
else if (regnum < 6144) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

583 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

584 
regtype = REG_TYPE_CONST3; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

585 
regnum = 4096; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

586 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

587 
else if (regnum < 8192) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

588 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

589 
regtype = REG_TYPE_CONST4; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

590 
regnum = 6144; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

591 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

592 
else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

593 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

594 
return fail(ctx, "Invalid const register index"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

595 
} // else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

596 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

597 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

598 
*rtype = regtype; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

599 
*rnum = regnum; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

600 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

601 
return NOFAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

602 
} // parse_register_name 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

603 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

604 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

605 
static int set_result_shift(Context *ctx, DestArgInfo *info, const int val) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

606 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

607 
if (info>result_shift != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

608 
return fail(ctx, "Multiple result shift modifiers"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

609 
info>result_shift = val; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

610 
return NOFAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

611 
} // set_result_shift 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

612 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

613 

465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

614 
static int parse_destination_token(Context *ctx, DestArgInfo *info) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

615 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

616 
memset(info, '\0', sizeof (info)); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

617 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

618 
// See if there are destination modifiers on the instruction itself... 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

619 
while (1) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

620 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

621 
if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

622 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

623 
else if (strcmp(ctx>token, " ") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

624 
break; // done with modifiers. 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

625 
else if (strcmp(ctx>token, "_") != 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

626 
return fail(ctx, "Expected modifier or whitespace"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

627 
else if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

628 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

629 
else if (strcasecmp(ctx>token, "x2") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

630 
set_result_shift(ctx, info, 0x1); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

631 
else if (strcasecmp(ctx>token, "x4") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

632 
set_result_shift(ctx, info, 0x2); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

633 
else if (strcasecmp(ctx>token, "x8") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

634 
set_result_shift(ctx, info, 0x3); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

635 
else if (strcasecmp(ctx>token, "d8") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

636 
set_result_shift(ctx, info, 0xD); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

637 
else if (strcasecmp(ctx>token, "d4") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

638 
set_result_shift(ctx, info, 0xE); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

639 
else if (strcasecmp(ctx>token, "d2") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

640 
set_result_shift(ctx, info, 0xF); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

641 
else if (strcasecmp(ctx>token, "sat") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

642 
info>result_mod = MOD_SATURATE; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

643 
else if (strcasecmp(ctx>token, "pp") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

644 
info>result_mod = MOD_PP; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

645 
else if (strcasecmp(ctx>token, "centroid") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

646 
info>result_mod = MOD_CENTROID; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

647 
else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

648 
return fail(ctx, "Expected modifier"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

649 
} // while 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

650 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

651 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

652 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

653 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

654 
// !!! FIXME: predicates. 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

655 
if (strcmp(ctx>token, "(") == 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

656 
return fail(ctx, "Predicates unsupported at this time"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

657 
pushback(ctx); // parse_register_name calls nexttoken(). 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

658 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

659 
if (parse_register_name(ctx, &info>regtype, &info>regnum) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

660 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

661 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

662 
if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

663 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

664 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

665 
// !!! FIXME: can dest registers do relative addressing? 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

666 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

667 
if (strcmp(ctx>token, ".") != 0) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

668 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

669 
info>writemask = 0xF; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

670 
info>writemask0 = info>writemask1 = info>writemask2 = info>writemask3 = 1; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

671 
pushback(ctx); // no explicit writemask; do full mask. 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

672 
} // if 
491
bcc3c215807a
Fixed wrong data from scalar_register().
Ryan C. Gordon <icculus@icculus.org>
parents:
490
diff
changeset

673 
else if (scalar_register(ctx>shader_type, info>regtype, info>regnum)) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

674 
return fail(ctx, "Writemask specified for scalar register"); 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

675 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

676 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

677 
else if (ctx>token[0] == '\0') 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

678 
return fail(ctx, "Invalid writemask"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

679 
else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

680 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

681 
char *ptr = ctx>token; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

682 
info>writemask0 = info>writemask1 = info>writemask2 = info>writemask3 = 0; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

683 
if (*ptr == 'x') { info>writemask0 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

684 
if (*ptr == 'y') { info>writemask1 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

685 
if (*ptr == 'z') { info>writemask2 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

686 
if (*ptr == 'w') { info>writemask3 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

687 
if ((ptr == ctx>token) && (shader_is_pixel(ctx))) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

688 
{ 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

689 
if (*ptr == 'r') { info>writemask0 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

690 
if (*ptr == 'g') { info>writemask1 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

691 
if (*ptr == 'b') { info>writemask2 = 1; ptr++; } 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

692 
if (*ptr == 'a') { info>writemask3 = 1; ptr++; } 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

693 
} // if 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

694 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

695 
if (*ptr != '\0') 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

696 
return fail(ctx, "Invalid writemask"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

697 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

698 
info>writemask = ( ((info>writemask0 & 0x1) << 0)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

699 
((info>writemask1 & 0x1) << 1)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

700 
((info>writemask2 & 0x1) << 2)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

701 
((info>writemask3 & 0x1) << 3) ); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

702 
} // else 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

703 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

704 
info>orig_writemask = info>writemask; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

705 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

706 
if (ctx>tokenbufpos >= STATICARRAYLEN(ctx>tokenbuf)) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

707 
return fail(ctx, "Too many tokens"); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

708 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

709 
ctx>tokenbuf[ctx>tokenbufpos++] = 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

710 
( ((((uint32) 1)) << 31)  
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

711 
((((uint32) info>regnum) & 0x7ff) << 0)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

712 
((((uint32) info>relative) & 0x1) << 13)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

713 
((((uint32) info>result_mod) & 0xF) << 20)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

714 
((((uint32) info>result_shift) & 0xF) << 24)  
500
38ce929323c2
Fixed writemask bits in assembled bytecode.
Ryan C. Gordon <icculus@icculus.org>
parents:
499
diff
changeset

715 
((((uint32) info>writemask) & 0xF) << 16)  
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

716 
((((uint32) info>regtype) & 0x7) << 28)  
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

717 
((((uint32) info>regtype) & 0x18) << 8) ); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

718 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

719 
return 1; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

720 
} // parse_destination_token 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

721 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

722 

472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

723 
static void set_source_mod(Context *ctx, const int negate, 
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

724 
const SourceMod norm, const SourceMod negated, 
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

725 
SourceMod *srcmod) 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

726 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

727 
if ( (*srcmod != SRCMOD_NONE)  (negate && (negated == SRCMOD_NONE)) ) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

728 
fail(ctx, "Incompatible source modifiers"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

729 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

730 
*srcmod = ((negate) ? negated : norm); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

731 
} // set_source_mod 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

732 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

733 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

734 
static int parse_source_token_maybe_relative(Context *ctx, const int relok) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

735 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

736 
int retval = 1; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

737 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

738 
if (ctx>tokenbufpos >= STATICARRAYLEN(ctx>tokenbuf)) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

739 
return fail(ctx, "Too many tokens"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

740 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

741 
// mark this now, so optional relative addressing token is placed second. 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

742 
uint32 *token = &ctx>tokenbuf[ctx>tokenbufpos++]; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

743 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

744 
SourceMod srcmod = SRCMOD_NONE; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

745 
int negate = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

746 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

747 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

748 
else if (strcmp(ctx>token, "1") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

749 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

750 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

751 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

752 
else if (strcmp(ctx>token, "") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

753 
return fail(ctx, "Unexpected value"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

754 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

755 
srcmod = SRCMOD_COMPLEMENT; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

756 
} // else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

757 
else if (strcmp(ctx>token, "!") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

758 
srcmod = SRCMOD_NOT; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

759 
else if (strcmp(ctx>token, "") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

760 
negate = 1; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

761 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

762 
pushback(ctx); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

763 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

764 
RegisterType regtype; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

765 
int regnum; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

766 
if (parse_register_name(ctx, ®type, ®num) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

767 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

768 
else if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

769 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

770 
else if (strcmp(ctx>token, "_") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

771 
pushback(ctx); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

772 
else if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

773 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

774 
else if (strcasecmp(ctx>token, "bias") == 0) 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

775 
set_source_mod(ctx, negate, SRCMOD_BIAS, SRCMOD_BIASNEGATE, &srcmod); 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

776 
else if (strcasecmp(ctx>token, "bx2") == 0) 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

777 
set_source_mod(ctx, negate, SRCMOD_SIGN, SRCMOD_SIGNNEGATE, &srcmod); 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

778 
else if (strcasecmp(ctx>token, "x2") == 0) 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

779 
set_source_mod(ctx, negate, SRCMOD_X2, SRCMOD_X2NEGATE, &srcmod); 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

780 
else if (strcasecmp(ctx>token, "dz") == 0) 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

781 
set_source_mod(ctx, negate, SRCMOD_DZ, SRCMOD_NONE, &srcmod); 
470
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
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782 
else if (strcasecmp(ctx>token, "dw") == 0) 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

783 
set_source_mod(ctx, negate, SRCMOD_DW, SRCMOD_NONE, &srcmod); 
470
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

784 
else if (strcasecmp(ctx>token, "abs") == 0) 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

785 
set_source_mod(ctx, negate, SRCMOD_ABS, SRCMOD_ABSNEGATE, &srcmod); 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

786 
else 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

787 
return fail(ctx, "Invalid source modifier"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

788 

7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

789 
if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

790 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

791 

7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

792 
uint32 relative = 0; 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

793 
if (strcmp(ctx>token, "[") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

794 
pushback(ctx); // not relative addressing? 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

795 
else if (!relok) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

796 
return fail(ctx, "Relative addressing not permitted here."); 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

797 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

798 
{ 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

799 
const int rc = parse_source_token_maybe_relative(ctx, 0); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

800 
if (rc == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

801 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

802 
retval += rc; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

803 
relative = 1; 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

804 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

805 
return FAIL; 
482
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

806 
else if (strcmp(ctx>token, "+") != 0) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

807 
pushback(ctx); 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

808 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

809 
return FAIL; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

810 
else 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

811 
{ 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

812 
if (regnum != 0) // !!! FIXME: maybe c3[a0.x + 5] is legal and becomes c[a0.x + 8] ? 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

813 
fail(ctx, "Relative addressing with explicit register number."); 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

814 
uint32 ui32 = 0; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

815 
if (!ui32fromstr(ctx>token, &ui32)) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

816 
return fail(ctx, "Invalid relative addressing offset"); 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

817 
regnum += (int) ui32; 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

818 
} // else 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

819 

3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

820 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
3f740f25bd7e
Fixed relative addressing parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
481
diff
changeset

821 
return FAIL; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

822 
else if (strcmp(ctx>token, "]") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

823 
return fail(ctx, "Expected ']'"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

824 
} // else 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

825 

7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

826 
if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

827 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

828 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

829 
uint32 swizzle = 0; 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

830 
if (strcmp(ctx>token, ".") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

831 
{ 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

832 
swizzle = 0xE4; // 0xE4 == 11100100 ... 0 1 2 3. No swizzle. 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

833 
pushback(ctx); // no explicit writemask; do full mask. 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

834 
} // if 
491
bcc3c215807a
Fixed wrong data from scalar_register().
Ryan C. Gordon <icculus@icculus.org>
parents:
490
diff
changeset

835 
else if (scalar_register(ctx>shader_type, regtype, regnum)) 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

836 
return fail(ctx, "Swizzle specified for scalar register"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

837 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

838 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

839 
else if (ctx>token[0] == '\0') 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

840 
return fail(ctx, "Invalid swizzle"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

841 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

842 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

843 
// deal with shortened form (.x = .xxxx, etc). 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

844 
if (ctx>token[1] == '\0') 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

845 
ctx>token[1] = ctx>token[2] = ctx>token[3] = ctx>token[0]; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

846 
else if (ctx>token[2] == '\0') 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

847 
ctx>token[2] = ctx>token[3] = ctx>token[1]; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

848 
else if (ctx>token[3] == '\0') 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

849 
ctx>token[3] = ctx>token[2]; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

850 
else if (ctx>token[4] != '\0') 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

851 
return fail(ctx, "Invalid swizzle"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

852 
ctx>token[4] = '\0'; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

853 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

854 
uint32 val; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

855 
int saw_xyzw = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

856 
int saw_rgba = 0; 
472
e52d487e6d91
Bunch More Work on the assembler. Feature complete now?
Ryan C. Gordon <icculus@icculus.org>
parents:
470
diff
changeset

857 
int i; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

858 
for (i = 0; i < 4; i++) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

859 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

860 
const int component = (int) ctx>token[i]; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

861 
switch (component) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

862 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

863 
case 'x': val = 0; saw_xyzw = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

864 
case 'y': val = 1; saw_xyzw = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

865 
case 'z': val = 2; saw_xyzw = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

866 
case 'w': val = 3; saw_xyzw = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

867 
case 'r': val = 0; saw_rgba = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

868 
case 'g': val = 1; saw_rgba = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

869 
case 'b': val = 2; saw_rgba = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

870 
case 'a': val = 3; saw_rgba = 1; break; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

871 
default: return fail(ctx, "Invalid swizzle"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

872 
} // switch 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

873 
swizzle = (val << (i * 2)); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

874 
} // for 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

875 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

876 
if (saw_xyzw && saw_rgba) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

877 
return fail(ctx, "Invalid swizzle"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

878 
} // else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

879 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

880 
*token = ( ((((uint32) 1)) << 31)  
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

881 
((((uint32) regnum) & 0x7ff) << 0)  
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

882 
((((uint32) relative) & 0x1) << 13)  
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

883 
((((uint32) swizzle) & 0xFF) << 16)  
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

884 
((((uint32) srcmod) & 0xF) << 24)  
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

885 
((((uint32) regtype) & 0x7) << 28)  
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

886 
((((uint32) regtype) & 0x18) << 8) ); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

887 

7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

888 
return retval; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

889 
} // parse_source_token_maybe_relative 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

890 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

891 

7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

892 
static inline int parse_source_token(Context *ctx) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

893 
{ 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

894 
return parse_source_token_maybe_relative(ctx, 1); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

895 
} // parse_source_token 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

896 

7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

897 

465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

898 
static int parse_args_NULL(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

899 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

900 
return (isfail(ctx) ? FAIL : 1); 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

901 
} // parse_args_NULL 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

902 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

903 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

904 
static int parse_num(Context *ctx, const int floatok, uint32 *token) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

905 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

906 
int32 negative = 1; 
7d84d3452125
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Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

907 
union { float f; int32 si32; uint32 ui32; } cvt; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

908 
cvt.si32 = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

909 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

910 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

911 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

912 
else if (strcmp(ctx>token, "") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

913 
negative = 1; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

914 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

915 
pushback(ctx); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

916 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

917 
uint32 val = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

918 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

919 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

920 
else if (!ui32fromstr(ctx>token, &val)) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

921 
return fail(ctx, "Expected number"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

922 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

923 
uint32 fraction = 0; 
488
1a318d011c00
Handle endlines on DEF statements.
Ryan C. Gordon <icculus@icculus.org>
parents:
487
diff
changeset

924 
if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

925 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

926 
else if (strcmp(ctx>token, ".") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

927 
pushback(ctx); // whole number 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

928 
else if (!floatok) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

929 
return fail(ctx, "Expected whole number"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

930 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

931 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

932 
else if (!ui32fromstr(ctx>token, &fraction)) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

933 
return fail(ctx, "Expected number"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

934 

492
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

935 
uint32 exponent = 0; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

936 
int negexp = 0; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

937 
if (nexttoken(ctx, 0, 1, 1, 1) == FAIL) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

938 
return FAIL; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

939 
else if (strcmp(ctx>token, "e") != 0) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

940 
pushback(ctx); 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

941 
else if (!floatok) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

942 
return fail(ctx, "Exponent on whole number"); // !!! FIXME: illegal? 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

943 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

944 
return FAIL; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

945 
else 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

946 
{ 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

947 
if (strcmp(ctx>token, "") != 0) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

948 
pushback(ctx); 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

949 
else 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

950 
negexp = 1; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

951 

29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

952 
if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

953 
return FAIL; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

954 
else if (!ui32fromstr(ctx>token, &exponent)) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

955 
return fail(ctx, "Expected exponent"); 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

956 
} // else 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

957 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

958 
if (!floatok) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

959 
cvt.si32 = ((int32) val) * negative; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

960 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

961 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

962 
// !!! FIXME: this is lame. 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

963 
char buf[128]; 
492
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

964 
snprintf(buf, sizeof (buf), "%s%u.%u", (negative < 0) ? "" : "", 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

965 
(uint) val, (uint) fraction); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

966 
sscanf(buf, "%f", &cvt.f); 
492
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

967 
cvt.f *= (float) negative; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

968 

29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

969 
if (exponent) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

970 
{ 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

971 
int i; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

972 
if (negexp) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

973 
{ 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

974 
for (i = 0; i > exponent; i) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

975 
cvt.f /= 10.0f; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

976 
} // if 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

977 
else 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

978 
{ 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

979 
for (i = 0; i < exponent; i++) 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

980 
cvt.f *= 10.0f; 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

981 
} // else 
29bfa3448549
Handle exponents in number parsing.
Ryan C. Gordon <icculus@icculus.org>
parents:
491
diff
changeset

982 
} // if 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

983 
} // else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

984 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

985 
*token = cvt.ui32; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

986 
return NOFAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

987 
} // parse_num 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

988 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

989 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

990 
static int parse_args_DEFx(Context *ctx, const int isflt) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

991 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

992 
if (parse_destination_token(ctx, &ctx>dest_arg) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

993 
return FAIL; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

994 
else if (require_comma(ctx) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

995 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

996 
else if (parse_num(ctx, isflt, &ctx>tokenbuf[ctx>tokenbufpos++]) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

997 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

998 
else if (require_comma(ctx) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

999 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1000 
else if (parse_num(ctx, isflt, &ctx>tokenbuf[ctx>tokenbufpos++]) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1001 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1002 
else if (require_comma(ctx) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1003 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1004 
else if (parse_num(ctx, isflt, &ctx>tokenbuf[ctx>tokenbufpos++]) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1005 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1006 
else if (require_comma(ctx) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1007 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1008 
else if (parse_num(ctx, isflt, &ctx>tokenbuf[ctx>tokenbufpos++]) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1009 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1010 
return 6; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1011 
} // parse_args_DEFx 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1012 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1013 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1014 
static int parse_args_DEF(Context *ctx) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1015 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1016 
return parse_args_DEFx(ctx, 1); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1017 
} // parse_args_DEF 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1018 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1019 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1020 
static int parse_args_DEFI(Context *ctx) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1021 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1022 
return parse_args_DEFx(ctx, 0); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1023 
} // parse_args_DEFI 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1024 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1025 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1026 
static int parse_args_DEFB(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1027 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1028 
if (parse_destination_token(ctx, &ctx>dest_arg) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1029 
return FAIL; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1030 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1031 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1032 
else if (strcmp(ctx>token, ",") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1033 
return fail(ctx, "Expected ','"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1034 
else if (nexttoken(ctx, 0, 1, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1035 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1036 
else if (strcasecmp(ctx>token, "true") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1037 
ctx>tokenbuf[ctx>tokenbufpos++] = 1; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1038 
else if (strcasecmp(ctx>token, "false") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1039 
ctx>tokenbuf[ctx>tokenbufpos++] = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1040 
else 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1041 
return fail(ctx, "Expected 'true' or 'false'"); 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1042 
return 3; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1043 
} // parse_args_DEFB 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1044 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1045 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1046 
static int parse_dcl_usage(const char *token, uint32 *val, int *issampler) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1047 
{ 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1048 
int i; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1049 
static const char *samplerusagestrs[] = { "2d", "cube", "volume" }; 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1050 
static const char *usagestrs[] = { 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1051 
"position", "blendweight", "blendindices", "normal", "psize", 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1052 
"texcoord", "tangent", "binormal", "tessfactor", "positiont", 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1053 
"color", "fog", "depth", "sample" 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1054 
}; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1055 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1056 
for (i = 0; i < STATICARRAYLEN(usagestrs); i++) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1057 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1058 
if (strcasecmp(usagestrs[i], token) == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1059 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1060 
*issampler = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1061 
*val = i; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1062 
return NOFAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1063 
} // if 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1064 
} // for 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1065 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1066 
for (i = 0; i < STATICARRAYLEN(samplerusagestrs); i++) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1067 
{ 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1068 
if (strcasecmp(samplerusagestrs[i], token) == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1069 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1070 
*issampler = 1; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1071 
*val = i + 2; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1072 
return NOFAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1073 
} // if 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1074 
} // for 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1075 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1076 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1077 
} // parse_dcl_usage 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1078 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1079 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1080 
static int parse_args_DCL(Context *ctx) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1081 
{ 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1082 
int issampler = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1083 
uint32 usage = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1084 
uint32 index = 0; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1085 

7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1086 
ctx>tokenbufpos++; // save a spot for the usage/index token. 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1087 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1088 
if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1089 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1090 
else if (strcmp(ctx>token, " ") == 0) 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1091 
pushback(ctx); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1092 
else if (strcmp(ctx>token, "_") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1093 
return fail(ctx, "Expected register or usage"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1094 
else if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1095 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1096 
else if (parse_dcl_usage(ctx>token, &usage, &issampler) == FAIL) 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1097 
return FAIL; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1098 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1099 
if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1100 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1101 
else if (strcmp(ctx>token, " ") == 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1102 
pushback(ctx); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1103 
else if (!ui32fromstr(ctx>token, &index)) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1104 
return fail(ctx, "Expected usage index or register"); 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1105 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1106 
if (nexttoken(ctx, 0, 0, 0, 0) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1107 
return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1108 
else if (strcmp(ctx>token, " ") != 0) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1109 
return fail(ctx, "Expected register"); 
490
14b6586d9c43
Fixed parsing of DCL instructions.
Ryan C. Gordon <icculus@icculus.org>
parents:
489
diff
changeset

1110 
else if (pushback(ctx) == FAIL) // parse_destination_token() wants the ' ' 
14b6586d9c43
Fixed parsing of DCL instructions.
Ryan C. Gordon <icculus@icculus.org>
parents:
489
diff
changeset

1111 
return FAIL; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1112 
else if (parse_destination_token(ctx, &ctx>dest_arg) == FAIL) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1113 
return FAIL; 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1114 

470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1115 
const int samplerreg = (ctx>dest_arg.regtype == REG_TYPE_SAMPLER); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1116 
if (issampler != samplerreg) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1117 
return fail(ctx, "Invalid usage"); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1118 
else if (samplerreg) 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1119 
ctx>tokenbuf[0] = (usage << 27)  0x80000000; 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1120 
else 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1121 
ctx>tokenbuf[0] = usage  (index << 16)  0x80000000; 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1122 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1123 
return 3; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1124 
} // parse_args_DCL 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1125 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1126 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1127 
static int parse_args_D(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1128 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1129 
int retval = 1; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1130 
retval += parse_destination_token(ctx, &ctx>dest_arg); 
480
e7a7822fb38b
Logic error due to secondguessing design.
Ryan C. Gordon <icculus@icculus.org>
parents:
479
diff
changeset

1131 
return isfail(ctx) ? FAIL : retval; 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1132 
} // parse_args_D 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1133 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1134 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1135 
static int parse_args_S(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1136 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1137 
int retval = 1; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1138 
retval += parse_source_token(ctx); 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1139 
return isfail(ctx) ? FAIL : retval; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1140 
} // parse_args_S 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1141 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1142 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1143 
static int parse_args_SS(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1144 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1145 
int retval = 1; 
470
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1146 
retval += parse_source_token(ctx); 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1147 
if (require_comma(ctx) == FAIL) return FAIL; 
7d84d3452125
Bunch More Work on the assembler.
Ryan C. Gordon <icculus@icculus.org>
parents:
465
diff
changeset

1148 
retval += parse_source_token(ctx); 
465
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1149 
return isfail(ctx) ? FAIL : retval; 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1150 
} // parse_args_SS 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1151 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1152 

0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1153 
static int parse_args_DS(Context *ctx) 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1154 
{ 
0a75f98f785b
Initial work on assembler. Not even close to done.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff
changeset

1155 
int retval = 1; 