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4 Commits

Author SHA1 Message Date
Paolo Bonzini f5847c912d target-i386: compute eflags outside rcl/rcr helper 
Always compute EFLAGS first since it is needed whenever
the shift is non-zero, i.e. most of the time.  This makes it possible
to remove some writes of CC_OP_EFLAGS to cpu_cc_op and more importantly
removes cases where s->cc_op becomes CC_OP_DYNAMIC.  Also, we can
remove cc_tmp and just modify cc_src from within the helper.

Finally, always follow gen_compute_eflags(cpu_cc_src) by setting s->cc_op
and discarding cpu_cc_dst.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
 2013-02-18 15:03:56 -08:00
Blue Swirl 7923057bae x86: avoid AREG0 for integer helpers 
Add an explicit CPUX86State parameter instead of relying on AREG0.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2012-08-14 19:01:25 +00:00
Blue Swirl f0967a1add x86: avoid AREG0 for condition code helpers 
Add an explicit CPUX86State parameter instead of relying on AREG0.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2012-08-14 19:01:25 +00:00
Blue Swirl 38de4c46f2 x86: split condition code and shift templates 
Move shift templates from helper_template.h to
shift_helper_template.h and the condition code helpers
to cc_helper_template.h.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
 2012-06-28 20:28:08 +00:00