Convert addx, subx, next_insn and mov_pc_npc to TCG

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4009 c046a42c-6fe2-441c-8c8c-71466251a162

Convert addx, subx, next_insn and mov_pc_npc to TCG
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4009 c046a42c-6fe2-441c-8c8c-71466251a162
blueswir1
1 parent 0cf767d6
Showing 2 changed files with 29 additions and 27 deletions
target-sparc/op.c
target-sparc/translate.c
@@ -215,11 +215,6 @@ void OPPROTO op_add_T1_T0_cc(void)
     FORCE_RET();
 }
-void OPPROTO op_addx_T1_T0(void)
-{
-    T0 += T1 + FLAG_SET(PSR_CARRY);
-}
-
 void OPPROTO op_addx_T1_T0_cc(void)
 {
     target_ulong src1;
@@ -413,11 +408,6 @@ void OPPROTO op_sub_T1_T0_cc(void)
     FORCE_RET();
 }
-void OPPROTO op_subx_T1_T0(void)
-{
-    T0 -= T1 + FLAG_SET(PSR_CARRY);
-}
-
 void OPPROTO op_subx_T1_T0_cc(void)
 {
     target_ulong src1;
@@ -1184,17 +1174,6 @@ void OPPROTO op_eval_brgez(void)
 }
 #endif
-void OPPROTO op_mov_pc_npc(void)
-{
-    env->pc = env->npc;
-}
-
-void OPPROTO op_next_insn(void)
-{
-    env->pc = env->npc;
-    env->npc = env->npc + 4;
-}
-
 void OPPROTO op_jmp_label(void)
 {
     GOTO_LABEL_PARAM(1);
@@ -412,16 +412,26 @@ static inline void gen_mov_pc_npc(DisasContext * dc)
 {
     if (dc->npc == JUMP_PC) {
         gen_generic_branch(dc->jump_pc[0], dc->jump_pc[1]);
-        gen_op_mov_pc_npc();
+        tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, npc));
+        tcg_gen_st_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, pc));
         dc->pc = DYNAMIC_PC;
     } else if (dc->npc == DYNAMIC_PC) {
-        gen_op_mov_pc_npc();
+        tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, npc));
+        tcg_gen_st_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, pc));
         dc->pc = DYNAMIC_PC;
     } else {
         dc->pc = dc->npc;
     }
 }
+static inline void gen_op_next_insn(void)
+{
+    tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, npc));
+    tcg_gen_st_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, pc));
+    tcg_gen_addi_tl(cpu_tmp0, cpu_tmp0, 4);
+    tcg_gen_st_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, npc));
+}
+
 static GenOpFunc * const gen_cond[2][16] = {
     {
         gen_op_eval_bn,
@@ -991,6 +1001,13 @@ static inline void gen_ldstub_asi(int insn)
 }
 #endif
+static inline void gen_mov_reg_C(TCGv reg)
+{
+    tcg_gen_ld_i32(reg, cpu_env, offsetof(CPUSPARCState, psr));
+    tcg_gen_shri_i32(reg, reg, 20);
+    tcg_gen_andi_i32(reg, reg, 0x1);
+}
+
 /* before an instruction, dc->pc must be static */
 static void disas_sparc_insn(DisasContext * dc)
 {
@@ -2111,8 +2128,11 @@ static void disas_sparc_insn(DisasContext * dc)
                     case 0x8:
                         if (xop & 0x10)
                             gen_op_addx_T1_T0_cc();
-                        else
-                            gen_op_addx_T1_T0();
+                        else {
+                            gen_mov_reg_C(cpu_tmp0);
+                            tcg_gen_add_tl(cpu_T[1], cpu_T[1], cpu_tmp0);
+                            tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
+                        }
                         break;
 #ifdef TARGET_SPARC64
                     case 0x9: /* V9 mulx */
@@ -2132,8 +2152,11 @@ static void disas_sparc_insn(DisasContext * dc)
                     case 0xc:
                         if (xop & 0x10)
                             gen_op_subx_T1_T0_cc();
-                        else
-                            gen_op_subx_T1_T0();
+                        else {
+                            gen_mov_reg_C(cpu_tmp0);
+                            tcg_gen_add_tl(cpu_T[1], cpu_T[1], cpu_tmp0);
+                            tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
+                        }
                         break;
 #ifdef TARGET_SPARC64
                     case 0xd: /* V9 udivx */