--- a/src/audio/SDL_mixer_m68k.c Sun May 21 17:27:13 2006 +0000
+++ b/src/audio/SDL_mixer_m68k.c Sun May 28 13:04:16 2006 +0000
@@ -28,184 +28,113 @@
*/
#if defined(__M68000__) && defined(__GNUC__)
-void SDL_MixAudio_m68k_U8(char* dst, char* src, long len, long volume, char* mix8)
+void
+SDL_MixAudio_m68k_U8 (char *dst, char *src, long len, long volume, char *mix8)
{
- __asm__ __volatile__ (
-
- "tstl %2\n"
-" beqs stoploop_u8\n"
-"mixloop_u8:\n"
-
- /* Mix a sample */
-
-" moveq #0,%%d0\n"
-" moveq #0,%%d1\n"
-
-" moveb %1@+,%%d0\n" /* d0 = *src++ */
-" sub #128,%%d0\n" /* d0 -= 128 */
-" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
-" moveb %0@,%%d1\n" /* d1 = *dst */
-" asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
-" add #128,%%d0\n" /* d0 += 128 */
-
-" add %%d1,%%d0\n"
-
-" moveb %4@(%%d0:w),%0@+\n"
-
- /* Loop till done */
-
-" subql #1,%2\n"
-" bhis mixloop_u8\n"
-"stoploop_u8:\n"
-
- : /* no return value */
- : /* input */
- "a"(dst), "a"(src), "d"(len), "d"(volume), "a"(mix8)
- : /* clobbered registers */
- "d0", "d1", "cc", "memory"
- );
+ __asm__ __volatile__ ("tstl %2\n" " beqs stoploop_u8\n" "mixloop_u8:\n"
+ /* Mix a sample */
+ " moveq #0,%%d0\n" " moveq #0,%%d1\n" " moveb %1@+,%%d0\n" /* d0 = *src++ */
+ " sub #128,%%d0\n" /* d0 -= 128 */
+ " muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
+ " moveb %0@,%%d1\n" /* d1 = *dst */
+ " asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
+ " add #128,%%d0\n" /* d0 += 128 */
+ " add %%d1,%%d0\n"
+ " moveb %4@(%%d0:w),%0@+\n"
+ /* Loop till done */
+ " subql #1,%2\n" " bhis mixloop_u8\n" "stoploop_u8:\n": /* no return value */
+ : /* input */
+ "a" (dst), "a" (src), "d" (len), "d" (volume), "a" (mix8): /* clobbered registers */
+ "d0", "d1", "cc", "memory");
}
-void SDL_MixAudio_m68k_S8(char* dst, char* src, long len, long volume)
+void
+SDL_MixAudio_m68k_S8 (char *dst, char *src, long len, long volume)
{
- __asm__ __volatile__ (
-
- "tstl %2\n"
-" beqs stoploop_s8\n"
-" moveq #-128,%%d2\n"
-" moveq #127,%%d3\n"
-"mixloop_s8:\n"
-
- /* Mix a sample */
-
-" moveq #0,%%d0\n"
-" moveq #0,%%d1\n"
-
-" moveb %1@+,%%d0\n" /* d0 = *src++ */
-" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
-" moveb %0@,%%d1\n" /* d1 = *dst */
-" asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
-
-" add %%d1,%%d0\n"
-
-" cmp %%d2,%%d0\n"
-" bges lower_limit_s8\n"
-" move %%d2,%%d0\n"
-"lower_limit_s8:\n"
-
-" cmp %%d3,%%d0\n"
-" bles upper_limit_s8\n"
-" move %%d3,%%d0\n"
-"upper_limit_s8:\n"
-" moveb %%d0,%0@+\n"
-
- /* Loop till done */
-
-" subql #1,%2\n"
-" bhis mixloop_s8\n"
-"stoploop_s8:\n"
-
- : /* no return value */
- : /* input */
- "a"(dst), "a"(src), "d"(len), "d"(volume)
- : /* clobbered registers */
- "d0", "d1", "d2", "d3", "cc", "memory"
- );
+ __asm__ __volatile__ ("tstl %2\n"
+ " beqs stoploop_s8\n"
+ " moveq #-128,%%d2\n"
+ " moveq #127,%%d3\n" "mixloop_s8:\n"
+ /* Mix a sample */
+ " moveq #0,%%d0\n" " moveq #0,%%d1\n" " moveb %1@+,%%d0\n" /* d0 = *src++ */
+ " muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
+ " moveb %0@,%%d1\n" /* d1 = *dst */
+ " asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
+ " add %%d1,%%d0\n"
+ " cmp %%d2,%%d0\n"
+ " bges lower_limit_s8\n"
+ " move %%d2,%%d0\n"
+ "lower_limit_s8:\n"
+ " cmp %%d3,%%d0\n"
+ " bles upper_limit_s8\n"
+ " move %%d3,%%d0\n"
+ "upper_limit_s8:\n" " moveb %%d0,%0@+\n"
+ /* Loop till done */
+ " subql #1,%2\n" " bhis mixloop_s8\n" "stoploop_s8:\n": /* no return value */
+ : /* input */
+ "a" (dst), "a" (src), "d" (len), "d" (volume): /* clobbered registers */
+ "d0", "d1", "d2", "d3", "cc", "memory");
}
-void SDL_MixAudio_m68k_S16MSB(short* dst, short* src, long len, long volume)
+void
+SDL_MixAudio_m68k_S16MSB (short *dst, short *src, long len, long volume)
{
- __asm__ __volatile__ (
-
- "tstl %2\n"
-" beqs stoploop_s16msb\n"
-" movel #-32768,%%d2\n"
-" movel #32767,%%d3\n"
-" lsrl #1,%2\n"
-"mixloop_s16msb:\n"
-
- /* Mix a sample */
-
-" move %1@+,%%d0\n" /* d0 = *src++ */
-" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
-" move %0@,%%d1\n" /* d1 = *dst */
-" extl %%d1\n" /* extend d1 to 32 bits */
-" asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
-
-" addl %%d1,%%d0\n"
-
-" cmpl %%d2,%%d0\n"
-" bges lower_limit_s16msb\n"
-" move %%d2,%%d0\n"
-"lower_limit_s16msb:\n"
-
-" cmpl %%d3,%%d0\n"
-" bles upper_limit_s16msb\n"
-" move %%d3,%%d0\n"
-"upper_limit_s16msb:\n"
-" move %%d0,%0@+\n"
-
- /* Loop till done */
-
-" subql #1,%2\n"
-" bhis mixloop_s16msb\n"
-"stoploop_s16msb:\n"
-
- : /* no return value */
- : /* input */
- "a"(dst), "a"(src), "d"(len), "d"(volume)
- : /* clobbered registers */
- "d0", "d1", "d2", "d3", "cc", "memory"
- );
+ __asm__ __volatile__ ("tstl %2\n"
+ " beqs stoploop_s16msb\n"
+ " movel #-32768,%%d2\n"
+ " movel #32767,%%d3\n"
+ " lsrl #1,%2\n" "mixloop_s16msb:\n"
+ /* Mix a sample */
+ " move %1@+,%%d0\n" /* d0 = *src++ */
+ " muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
+ " move %0@,%%d1\n" /* d1 = *dst */
+ " extl %%d1\n" /* extend d1 to 32 bits */
+ " asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
+ " addl %%d1,%%d0\n"
+ " cmpl %%d2,%%d0\n"
+ " bges lower_limit_s16msb\n"
+ " move %%d2,%%d0\n"
+ "lower_limit_s16msb:\n"
+ " cmpl %%d3,%%d0\n"
+ " bles upper_limit_s16msb\n"
+ " move %%d3,%%d0\n"
+ "upper_limit_s16msb:\n" " move %%d0,%0@+\n"
+ /* Loop till done */
+ " subql #1,%2\n" " bhis mixloop_s16msb\n" "stoploop_s16msb:\n": /* no return value */
+ : /* input */
+ "a" (dst), "a" (src), "d" (len), "d" (volume): /* clobbered registers */
+ "d0", "d1", "d2", "d3", "cc", "memory");
}
-void SDL_MixAudio_m68k_S16LSB(short* dst, short* src, long len, long volume)
+void
+SDL_MixAudio_m68k_S16LSB (short *dst, short *src, long len, long volume)
{
- __asm__ __volatile__ (
-
- "tstl %2\n"
-" beqs stoploop_s16lsb\n"
-" movel #-32768,%%d2\n"
-" movel #32767,%%d3\n"
-" lsrl #1,%2\n"
-"mixloop_s16lsb:\n"
-
- /* Mix a sample */
-
-" move %1@+,%%d0\n" /* d0 = *src++ */
-" rorw #8,%%d0\n"
-" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
-" move %0@,%%d1\n" /* d1 = *dst */
-" rorw #8,%%d1\n"
-" extl %%d1\n" /* extend d1 to 32 bits */
-" asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
-
-" addl %%d1,%%d0\n"
-
-" cmpl %%d2,%%d0\n"
-" bges lower_limit_s16lsb\n"
-" move %%d2,%%d0\n"
-"lower_limit_s16lsb:\n"
-
-" cmpl %%d3,%%d0\n"
-" bles upper_limit_s16lsb\n"
-" move %%d3,%%d0\n"
-"upper_limit_s16lsb:\n"
-" rorw #8,%%d0\n"
-" move %%d0,%0@+\n"
-
- /* Loop till done */
-
-" subql #1,%2\n"
-" bhis mixloop_s16lsb\n"
-"stoploop_s16lsb:\n"
-
- : /* no return value */
- : /* input */
- "a"(dst), "a"(src), "d"(len), "d"(volume)
- : /* clobbered registers */
- "d0", "d1", "d2", "d3", "cc", "memory"
- );
+ __asm__ __volatile__ ("tstl %2\n"
+ " beqs stoploop_s16lsb\n"
+ " movel #-32768,%%d2\n"
+ " movel #32767,%%d3\n"
+ " lsrl #1,%2\n" "mixloop_s16lsb:\n"
+ /* Mix a sample */
+ " move %1@+,%%d0\n" /* d0 = *src++ */
+ " rorw #8,%%d0\n" " muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
+ " move %0@,%%d1\n" /* d1 = *dst */
+ " rorw #8,%%d1\n" " extl %%d1\n" /* extend d1 to 32 bits */
+ " asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
+ " addl %%d1,%%d0\n"
+ " cmpl %%d2,%%d0\n"
+ " bges lower_limit_s16lsb\n"
+ " move %%d2,%%d0\n"
+ "lower_limit_s16lsb:\n"
+ " cmpl %%d3,%%d0\n"
+ " bles upper_limit_s16lsb\n"
+ " move %%d3,%%d0\n"
+ "upper_limit_s16lsb:\n"
+ " rorw #8,%%d0\n" " move %%d0,%0@+\n"
+ /* Loop till done */
+ " subql #1,%2\n" " bhis mixloop_s16lsb\n" "stoploop_s16lsb:\n": /* no return value */
+ : /* input */
+ "a" (dst), "a" (src), "d" (len), "d" (volume): /* clobbered registers */
+ "d0", "d1", "d2", "d3", "cc", "memory");
}
#endif
-
+/* vi: set ts=4 sw=4 expandtab: */