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Fix mulscc 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4103 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-03-23 11:50:28 +00:00
parent af896aaab7
commit 7127fe84e7
1 changed files with 10 additions and 7 deletions
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17
target-sparc/translate.c
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@ -751,21 +751,22 @@ static inline void gen_op_tsub_T1_T0_ccTV(void)
static inline void gen_op_mulscc_T1_T0(void)
{
TCGv r_temp;
TCGv r_temp, r_temp2;
int l1, l2;
l1 = gen_new_label();
l2 = gen_new_label();
r_temp = tcg_temp_new(TCG_TYPE_TL);
r_temp2 = tcg_temp_new(TCG_TYPE_I32);
/* old op:
if (!(env->y & 1))
T1 = 0;
*/
tcg_gen_ld_i32(cpu_tmp32, cpu_env, offsetof(CPUSPARCState, y));
tcg_gen_extu_i32_tl(r_temp, cpu_tmp32);
tcg_gen_andi_tl(r_temp, r_temp, 0x1);
tcg_gen_brcond_tl(TCG_COND_EQ, r_temp, tcg_const_tl(0), l1);
tcg_gen_ld32u_tl(r_temp, cpu_env, offsetof(CPUSPARCState, y));
tcg_gen_trunc_tl_i32(r_temp2, r_temp);
tcg_gen_andi_i32(r_temp2, r_temp2, 0x1);
tcg_gen_brcond_i32(TCG_COND_EQ, r_temp2, tcg_const_i32(0), l1);
tcg_gen_mov_tl(cpu_cc_src2, cpu_T[1]);
tcg_gen_br(l2);
gen_set_label(l1);
@ -774,10 +775,12 @@ static inline void gen_op_mulscc_T1_T0(void)
// b2 = T0 & 1;
// env->y = (b2 << 31) | (env->y >> 1);
tcg_gen_shli_tl(r_temp, cpu_T[0], 31);
tcg_gen_trunc_tl_i32(r_temp2, cpu_T[0]);
tcg_gen_andi_i32(r_temp2, r_temp2, 0x1);
tcg_gen_shli_i32(r_temp2, r_temp2, 31);
tcg_gen_ld_i32(cpu_tmp32, cpu_env, offsetof(CPUSPARCState, y));
tcg_gen_shri_i32(cpu_tmp32, cpu_tmp32, 1);
tcg_gen_or_i32(cpu_tmp32, cpu_tmp32, r_temp);
tcg_gen_or_i32(cpu_tmp32, cpu_tmp32, r_temp2);
tcg_gen_st_i32(cpu_tmp32, cpu_env, offsetof(CPUSPARCState, y));
// b1 = N ^ V;