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

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

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5597 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-11-02 08:22:45 +00:00
parent fea0c503a0
commit 0cfe58cd44
1 changed files with 8 additions and 12 deletions
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20
target-ppc/translate.c
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@ -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);