From 0cfe58cd4470cfbbd3650ec9451cdd0b0e3058c0 Mon Sep 17 00:00:00 2001 From: aurel32 Date: Sun, 2 Nov 2008 08:22:45 +0000 Subject: [PATCH] target-ppc: simplify slw, srw, sld, srd Signed-off-by: Aurelien Jarno git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5597 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-ppc/translate.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/target-ppc/translate.c b/target-ppc/translate.c index aac0a34adc..3be4d70b14 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1959,12 +1959,11 @@ GEN_HANDLER(slw, 0x1F, 0x18, 0x00, 0x00000000, PPC_INTEGER) 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 @@ GEN_HANDLER(srw, 0x1F, 0x18, 0x10, 0x00000000, PPC_INTEGER) 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 @@ GEN_HANDLER(sld, 0x1F, 0x1B, 0x00, 0x00000000, PPC_64B) 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 @@ GEN_HANDLER(srd, 0x1F, 0x1B, 0x10, 0x00000000, PPC_64B) 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);