[Qemu-devel] [5597] target-ppc: simplify slw, srw, sld, srd

[Qemu-devel] [5597] target-ppc: simplify slw, srw, sld, srd

[Aurelien Jarno]

Revision: 5597
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5597
Author:   aurel32
Date:     2008-11-02 08:22:45 +0000 (Sun, 02 Nov 2008)

Log Message:
-----------
target-ppc: simplify slw, srw, sld, srd

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Modified Paths:
--------------
    trunk/target-ppc/translate.c

Modified: trunk/target-ppc/translate.c
===================================================================
--- trunk/target-ppc/translate.c	2008-11-02 08:22:34 UTC (rev 5596)
+++ trunk/target-ppc/translate.c	2008-11-02 08:22:45 UTC (rev 5597)
@@ -1959,12 +1959,11 @@
     l2 = gen_new_label();
 
     t0 = tcg_temp_local_new(TCG_TYPE_TL);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x20);
-    tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
+    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x3f);
+    tcg_gen_brcondi_tl(TCG_COND_LT, t0, 0x20, l1);
     tcg_gen_movi_tl(cpu_gpr[rA(ctx->opcode)], 0);
     tcg_gen_br(l2);
     gen_set_label(l1);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x3f);
     tcg_gen_shl_tl(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)], t0);
     tcg_gen_ext32u_tl(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
     gen_set_label(l2);
@@ -2018,12 +2017,11 @@
     l2 = gen_new_label();
 
     t0 = tcg_temp_local_new(TCG_TYPE_TL);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x20);
-    tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
+    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x3f);
+    tcg_gen_brcondi_tl(TCG_COND_LT, t0, 0x20, l1);
     tcg_gen_movi_tl(cpu_gpr[rA(ctx->opcode)], 0);
     tcg_gen_br(l2);
     gen_set_label(l1);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x3f);
     t1 = tcg_temp_new(TCG_TYPE_TL);
     tcg_gen_ext32u_tl(t1, cpu_gpr[rS(ctx->opcode)]);
     tcg_gen_shr_tl(cpu_gpr[rA(ctx->opcode)], t1, t0);
@@ -2043,12 +2041,11 @@
     l2 = gen_new_label();
 
     t0 = tcg_temp_local_new(TCG_TYPE_TL);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x40);
-    tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
+    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x7f);
+    tcg_gen_brcondi_tl(TCG_COND_LT, t0, 0x40, l1);
     tcg_gen_movi_tl(cpu_gpr[rA(ctx->opcode)], 0);
     tcg_gen_br(l2);
     gen_set_label(l1);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x7f);
     tcg_gen_shl_tl(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)], t0);
     gen_set_label(l2);
     tcg_temp_free(t0);
@@ -2106,12 +2103,11 @@
     l2 = gen_new_label();
 
     t0 = tcg_temp_local_new(TCG_TYPE_TL);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x40);
-    tcg_gen_brcondi_tl(TCG_COND_EQ, t0, 0, l1);
+    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x7f);
+    tcg_gen_brcondi_tl(TCG_COND_LT, t0, 0x40, l1);
     tcg_gen_movi_tl(cpu_gpr[rA(ctx->opcode)], 0);
     tcg_gen_br(l2);
     gen_set_label(l1);
-    tcg_gen_andi_tl(t0, cpu_gpr[rB(ctx->opcode)], 0x7f);
     tcg_gen_shr_tl(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)], t0);
     gen_set_label(l2);
     tcg_temp_free(t0);