Patchwork [v5,02/13] target-mips-ase-dsp: Use correct acc value to indexcpu_HI/cpu_LO rather than using a fix number

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Submitter Jia Liu
Date Aug. 10, 2012, 3:05 a.m.
Message ID <1344567942-11666-3-git-send-email-proljc@gmail.com>
Download mbox | patch
Permalink /patch/176340/
State New
Headers show

Comments

Jia Liu - Aug. 10, 2012, 3:05 a.m.
Use correct acc value to indexcpu_HI/cpu_LO rather than using a fix number.

Signed-off-by: Jia Liu <proljc@gmail.com>
---
 target-mips/translate.c |   67 +++++++++++++++++++++++++++++------------------
 1 file changed, 41 insertions(+), 26 deletions(-)

Patch

diff --git a/target-mips/translate.c b/target-mips/translate.c
index 47daf85..c2c7090 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -5,6 +5,7 @@ 
  *  Copyright (c) 2006 Marius Groeger (FPU operations)
  *  Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support)
  *  Copyright (c) 2009 CodeSourcery (MIPS16 and microMIPS support)
+ *  Copyright (c) 2012 Jia Liu & Dongxue Zhang (MIPS ASE DSP support)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -1972,6 +1973,7 @@  static void gen_shift (CPUMIPSState *env, DisasContext *ctx, uint32_t opc,
 static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg)
 {
     const char *opn = "hilo";
+    unsigned int acc;
 
     if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) {
         /* Treat as NOP. */
@@ -1980,25 +1982,31 @@  static void gen_HILO (DisasContext *ctx, uint32_t opc, int reg)
     }
     switch (opc) {
     case OPC_MFHI:
-        tcg_gen_mov_tl(cpu_gpr[reg], cpu_HI[0]);
+        acc = ((ctx->opcode) >> 21) & 0x03;
+        tcg_gen_ext32s_tl(cpu_gpr[reg], cpu_HI[acc]);
         opn = "mfhi";
         break;
     case OPC_MFLO:
-        tcg_gen_mov_tl(cpu_gpr[reg], cpu_LO[0]);
+        acc = ((ctx->opcode) >> 21) & 0x03;
+        tcg_gen_ext32s_tl(cpu_gpr[reg], cpu_LO[acc]);
         opn = "mflo";
         break;
     case OPC_MTHI:
-        if (reg != 0)
-            tcg_gen_mov_tl(cpu_HI[0], cpu_gpr[reg]);
-        else
-            tcg_gen_movi_tl(cpu_HI[0], 0);
+        acc = ((ctx->opcode) >> 11) & 0x03;
+        if (reg != 0) {
+            tcg_gen_ext32s_tl(cpu_HI[acc], cpu_gpr[reg]);
+        } else {
+            tcg_gen_movi_tl(cpu_HI[acc], 0);
+        }
         opn = "mthi";
         break;
     case OPC_MTLO:
-        if (reg != 0)
-            tcg_gen_mov_tl(cpu_LO[0], cpu_gpr[reg]);
-        else
-            tcg_gen_movi_tl(cpu_LO[0], 0);
+        acc = ((ctx->opcode) >> 11) & 0x03;
+        if (reg != 0) {
+            tcg_gen_ext32s_tl(cpu_LO[acc], cpu_gpr[reg]);
+        } else {
+            tcg_gen_movi_tl(cpu_LO[acc], 0);
+        }
         opn = "mtlo";
         break;
     }
@@ -2011,6 +2019,7 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
 {
     const char *opn = "mul/div";
     TCGv t0, t1;
+    unsigned int acc;
 
     switch (opc) {
     case OPC_DIV:
@@ -2073,6 +2082,7 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
             TCGv_i64 t3 = tcg_temp_new_i64();
+            acc = ((ctx->opcode) >> 11) & 0x03;
 
             tcg_gen_ext_tl_i64(t2, t0);
             tcg_gen_ext_tl_i64(t3, t1);
@@ -2082,8 +2092,8 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
             tcg_gen_shri_i64(t2, t2, 32);
             tcg_gen_trunc_i64_tl(t1, t2);
             tcg_temp_free_i64(t2);
-            tcg_gen_ext32s_tl(cpu_LO[0], t0);
-            tcg_gen_ext32s_tl(cpu_HI[0], t1);
+            tcg_gen_ext32s_tl(cpu_LO[acc], t0);
+            tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
         opn = "mult";
         break;
@@ -2091,6 +2101,7 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
             TCGv_i64 t3 = tcg_temp_new_i64();
+            acc = ((ctx->opcode) >> 11) & 0x03;
 
             tcg_gen_ext32u_tl(t0, t0);
             tcg_gen_ext32u_tl(t1, t1);
@@ -2102,8 +2113,8 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
             tcg_gen_shri_i64(t2, t2, 32);
             tcg_gen_trunc_i64_tl(t1, t2);
             tcg_temp_free_i64(t2);
-            tcg_gen_ext32s_tl(cpu_LO[0], t0);
-            tcg_gen_ext32s_tl(cpu_HI[0], t1);
+            tcg_gen_ext32s_tl(cpu_LO[acc], t0);
+            tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
         opn = "multu";
         break;
@@ -2150,19 +2161,20 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
             TCGv_i64 t3 = tcg_temp_new_i64();
+            acc = ((ctx->opcode) >> 11) & 0x03;
 
             tcg_gen_ext_tl_i64(t2, t0);
             tcg_gen_ext_tl_i64(t3, t1);
             tcg_gen_mul_i64(t2, t2, t3);
-            tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
+            tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
             tcg_gen_add_i64(t2, t2, t3);
             tcg_temp_free_i64(t3);
             tcg_gen_trunc_i64_tl(t0, t2);
             tcg_gen_shri_i64(t2, t2, 32);
             tcg_gen_trunc_i64_tl(t1, t2);
             tcg_temp_free_i64(t2);
-            tcg_gen_ext32s_tl(cpu_LO[0], t0);
-            tcg_gen_ext32s_tl(cpu_HI[0], t1);
+            tcg_gen_ext32s_tl(cpu_LO[acc], t0);
+            tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
         opn = "madd";
         break;
@@ -2170,21 +2182,22 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
        {
             TCGv_i64 t2 = tcg_temp_new_i64();
             TCGv_i64 t3 = tcg_temp_new_i64();
+            acc = ((ctx->opcode) >> 11) & 0x03;
 
             tcg_gen_ext32u_tl(t0, t0);
             tcg_gen_ext32u_tl(t1, t1);
             tcg_gen_extu_tl_i64(t2, t0);
             tcg_gen_extu_tl_i64(t3, t1);
             tcg_gen_mul_i64(t2, t2, t3);
-            tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
+            tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
             tcg_gen_add_i64(t2, t2, t3);
             tcg_temp_free_i64(t3);
             tcg_gen_trunc_i64_tl(t0, t2);
             tcg_gen_shri_i64(t2, t2, 32);
             tcg_gen_trunc_i64_tl(t1, t2);
             tcg_temp_free_i64(t2);
-            tcg_gen_ext32s_tl(cpu_LO[0], t0);
-            tcg_gen_ext32s_tl(cpu_HI[0], t1);
+            tcg_gen_ext32s_tl(cpu_LO[acc], t0);
+            tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
         opn = "maddu";
         break;
@@ -2192,19 +2205,20 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
             TCGv_i64 t3 = tcg_temp_new_i64();
+            acc = ((ctx->opcode) >> 11) & 0x03;
 
             tcg_gen_ext_tl_i64(t2, t0);
             tcg_gen_ext_tl_i64(t3, t1);
             tcg_gen_mul_i64(t2, t2, t3);
-            tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
+            tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
             tcg_gen_sub_i64(t2, t3, t2);
             tcg_temp_free_i64(t3);
             tcg_gen_trunc_i64_tl(t0, t2);
             tcg_gen_shri_i64(t2, t2, 32);
             tcg_gen_trunc_i64_tl(t1, t2);
             tcg_temp_free_i64(t2);
-            tcg_gen_ext32s_tl(cpu_LO[0], t0);
-            tcg_gen_ext32s_tl(cpu_HI[0], t1);
+            tcg_gen_ext32s_tl(cpu_LO[acc], t0);
+            tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
         opn = "msub";
         break;
@@ -2212,21 +2226,22 @@  static void gen_muldiv (DisasContext *ctx, uint32_t opc,
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
             TCGv_i64 t3 = tcg_temp_new_i64();
+            acc = ((ctx->opcode) >> 11) & 0x03;
 
             tcg_gen_ext32u_tl(t0, t0);
             tcg_gen_ext32u_tl(t1, t1);
             tcg_gen_extu_tl_i64(t2, t0);
             tcg_gen_extu_tl_i64(t3, t1);
             tcg_gen_mul_i64(t2, t2, t3);
-            tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]);
+            tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
             tcg_gen_sub_i64(t2, t3, t2);
             tcg_temp_free_i64(t3);
             tcg_gen_trunc_i64_tl(t0, t2);
             tcg_gen_shri_i64(t2, t2, 32);
             tcg_gen_trunc_i64_tl(t1, t2);
             tcg_temp_free_i64(t2);
-            tcg_gen_ext32s_tl(cpu_LO[0], t0);
-            tcg_gen_ext32s_tl(cpu_HI[0], t1);
+            tcg_gen_ext32s_tl(cpu_LO[acc], t0);
+            tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
         opn = "msubu";
         break;