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Fix taddcctv and tsubcctv (David Matthews)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3379 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2007-10-10 19:11:54 +00:00
parent cb33da57aa
commit 90251fb96e
2 changed files with 3 additions and 1 deletions
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2
target-sparc/op.c
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@ -534,7 +534,7 @@ void OPPROTO op_tadd_T1_T0_ccTV(void)
((src1 & 0xffffffff) ^ (T0 & 0xffffffff))) & (1 << 31))
raise_exception(TT_TOVF);
#else
if ((src1 & 0x03) || (T1 & 0x03))
if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
raise_exception(TT_TOVF);
#endif

2
target-sparc/translate.c
View File

@ -2027,10 +2027,12 @@ static void disas_sparc_insn(DisasContext * dc)
gen_movl_T0_reg(rd);
break;
case 0x22: /* taddcctv */
save_state(dc);
gen_op_tadd_T1_T0_ccTV();
gen_movl_T0_reg(rd);
break;
case 0x23: /* tsubcctv */
save_state(dc);
gen_op_tsub_T1_T0_ccTV();
gen_movl_T0_reg(rd);
break;