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sh4: fix tas.b @Rn instruction

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(Shin-ichiro KAWASAKI, based on a patch from Andrzej Zaborowski)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5074 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-08-22 21:30:28 +00:00
parent f066404827
commit 825c69ce02
2 changed files with 6 additions and 8 deletions
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7
target-sh4/op.c
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@ -592,13 +592,6 @@ void OPPROTO op_shlr16_Rn(void)
RETURN();
}
void OPPROTO op_tasb_rN(void)
{
cond_t((env->gregs[PARAM1] & 0xff) == 0);
*(int8_t *) &env->gregs[PARAM1] |= 0x80;
RETURN();
}
void OPPROTO op_movl_T0_rN(void)
{
env->gregs[PARAM1] = T0;

7
target-sh4/translate.c
View File

@ -1100,7 +1100,12 @@ void _decode_opc(DisasContext * ctx)
gen_op_shlr16_Rn(REG(B11_8));
return;
case 0x401b: /* tas.b @Rn */
gen_op_tasb_rN(REG(B11_8));
gen_op_movl_rN_T0(REG(B11_8));
gen_op_movl_T0_T1();
gen_op_ldub_T0_T0(ctx);
gen_op_cmp_eq_imm_T0(0);
gen_op_or_imm_T0(0x80);
gen_op_stb_T0_T1(ctx);
return;
case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */
gen_op_movl_fpul_FT0();