| Message ID | 20240620095419.386958-5-pbonzini@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/i386: make decoding entirely table based | expand |
On 6/20/24 02:54, Paolo Bonzini wrote: > When computing the "other" flag (CF for CC_OP_ADOX, OF for CC_OP_ADCX), > take into account that it is already in the right position of cpu_cc_src, > just like for CC_OP_EFLAGS. There is no need to call gen_compute_eflags(). > > Signed-off-by: Paolo Bonzini<pbonzini@redhat.com> > --- > target/i386/tcg/translate.c | 4 ++++ > 1 file changed, 4 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 257110ac703..08db40681fa 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -928,6 +928,7 @@ static CCPrepare gen_prepare_eflags_c(DisasContext *s, TCGv reg) .no_setcond = true }; case CC_OP_EFLAGS: + case CC_OP_ADOX: case CC_OP_SARB ... CC_OP_SARQ: /* CC_SRC & 1 */ return (CCPrepare) { .cond = TCG_COND_TSTNE, @@ -994,6 +995,9 @@ static CCPrepare gen_prepare_eflags_o(DisasContext *s, TCGv reg) return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src }; default: gen_compute_eflags(s); + /* fallthrough */ + case CC_OP_EFLAGS: + case CC_OP_ADCX: return (CCPrepare) { .cond = TCG_COND_TSTNE, .reg = cpu_cc_src, .imm = CC_O }; }
When computing the "other" flag (CF for CC_OP_ADOX, OF for CC_OP_ADCX), take into account that it is already in the right position of cpu_cc_src, just like for CC_OP_EFLAGS. There is no need to call gen_compute_eflags(). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- target/i386/tcg/translate.c | 4 ++++ 1 file changed, 4 insertions(+)