Commit 0cfe58cd authored by Aurelien Jarno's avatar Aurelien Jarno
Browse files

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



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

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5597 c046a42c-6fe2-441c-8c8c-71466251a162
parent fea0c503

target-ppc/translate.c

+8 −12
Original line number Diff line number Diff line
@@ -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);