target-mips: fix ROTR and DROTR by zero

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Nathan Froyd 2010-02-20 10:24:07 -08:00 committed by Aurelien Jarno
parent c2c65dab45
commit 3399e30f56

View File

@ -1475,6 +1475,8 @@ static void gen_shift_imm(CPUState *env, DisasContext *ctx, uint32_t opc,
tcg_gen_rotri_i32(t1, t1, uimm);
tcg_gen_ext_i32_tl(cpu_gpr[rt], t1);
tcg_temp_free_i32(t1);
} else {
tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
}
opn = "rotr";
break;
@ -1494,6 +1496,8 @@ static void gen_shift_imm(CPUState *env, DisasContext *ctx, uint32_t opc,
case OPC_DROTR:
if (uimm != 0) {
tcg_gen_rotri_tl(cpu_gpr[rt], t0, uimm);
} else {
tcg_gen_mov_tl(cpu_gpr[rt], t0);
}
opn = "drotr";
break;