From 1968a87b9381fbb21728374113a04fa3774693e4 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 22 Apr 2008 06:07:36 -0400
Subject: [PATCH] Don't increase instruction count for DEFx and DCL opcodes.

We're still not a perfect match with the Microsoft disassembler estimates.

--HG--
branch : trunk
---
 mojoshader.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mojoshader.c b/mojoshader.c
index 667c37f5..79d24c0f 100644
--- a/mojoshader.c
+++ b/mojoshader.c
@@ -3524,6 +3524,9 @@ static void state_DEF(Context *ctx)
 {
     const RegisterType regtype = ctx->dest_arg.regtype;
     const int regnum = ctx->dest_arg.regnum;
+
+    ctx->instruction_count--;  // these don't increase your instruction count.
+
     switch (regtype)
     {
         case REG_TYPE_CONST:
@@ -3542,6 +3545,9 @@ static void state_DEFI(Context *ctx)
 {
     const RegisterType regtype = ctx->dest_arg.regtype;
     const int regnum = ctx->dest_arg.regnum;
+
+    ctx->instruction_count--;  // these don't increase your instruction count.
+
     if (regtype != REG_TYPE_CONSTINT)
         fail(ctx, "DEFI token using invalid register");
     else
@@ -3552,6 +3558,9 @@ static void state_DEFB(Context *ctx)
 {
     const RegisterType regtype = ctx->dest_arg.regtype;
     const int regnum = ctx->dest_arg.regnum;
+
+    ctx->instruction_count--;  // these don't increase your instruction count.
+
     if (regtype != REG_TYPE_CONSTBOOL)
         fail(ctx, "DEFB token using invalid register");
     else
@@ -3564,6 +3573,8 @@ static void state_DCL(Context *ctx)
     const RegisterType regtype = arg->regtype;
     const int regnum = arg->regnum;
 
+    ctx->instruction_count--;  // these don't increase your instruction count.
+
     // parse_args_DCL() does a lot of state checking before we get here.
 
     // !!! FIXME: fail if DCL opcode comes after real instructions.