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authorRichard Henderson <rth@twiddle.net>2013-01-23 16:03:16 -0800
committerRichard Henderson <rth@twiddle.net>2013-02-18 15:39:09 -0800
commit988c3eb0d6f41ac13f4ec145c637f12c776de602 (patch)
tree870e54c572872d4a04c06722b803fdb48e387e66 /target-i386/cc_helper.c
parentdb9f2597722d5d8bc5f2330f186288d893114338 (diff)
downloadqemu-arm-988c3eb0d6f41ac13f4ec145c637f12c776de602.tar.gz
target-i386: Use CC_SRC2 for ADC and SBB
Add another slot in ENV and store two of the three inputs. This lets us do less work when carry-out is not needed, and avoids the unpredictable CC_OP after translating these insns. Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-i386/cc_helper.c')
-rw-r--r--target-i386/cc_helper.c40
1 files changed, 21 insertions, 19 deletions
diff --git a/target-i386/cc_helper.c b/target-i386/cc_helper.c
index a5d8181804..218a9b519f 100644
--- a/target-i386/cc_helper.c
+++ b/target-i386/cc_helper.c
@@ -75,7 +75,8 @@ const uint8_t parity_table[256] = {
#endif
-target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1, int op)
+target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1,
+ target_ulong src2, int op)
{
switch (op) {
default: /* should never happen */
@@ -99,11 +100,11 @@ target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1, int op)
return compute_all_addl(dst, src1);
case CC_OP_ADCB:
- return compute_all_adcb(dst, src1);
+ return compute_all_adcb(dst, src1, src2);
case CC_OP_ADCW:
- return compute_all_adcw(dst, src1);
+ return compute_all_adcw(dst, src1, src2);
case CC_OP_ADCL:
- return compute_all_adcl(dst, src1);
+ return compute_all_adcl(dst, src1, src2);
case CC_OP_SUBB:
return compute_all_subb(dst, src1);
@@ -113,11 +114,11 @@ target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1, int op)
return compute_all_subl(dst, src1);
case CC_OP_SBBB:
- return compute_all_sbbb(dst, src1);
+ return compute_all_sbbb(dst, src1, src2);
case CC_OP_SBBW:
- return compute_all_sbbw(dst, src1);
+ return compute_all_sbbw(dst, src1, src2);
case CC_OP_SBBL:
- return compute_all_sbbl(dst, src1);
+ return compute_all_sbbl(dst, src1, src2);
case CC_OP_LOGICB:
return compute_all_logicb(dst, src1);
@@ -160,11 +161,11 @@ target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1, int op)
case CC_OP_ADDQ:
return compute_all_addq(dst, src1);
case CC_OP_ADCQ:
- return compute_all_adcq(dst, src1);
+ return compute_all_adcq(dst, src1, src2);
case CC_OP_SUBQ:
return compute_all_subq(dst, src1);
case CC_OP_SBBQ:
- return compute_all_sbbq(dst, src1);
+ return compute_all_sbbq(dst, src1, src2);
case CC_OP_LOGICQ:
return compute_all_logicq(dst, src1);
case CC_OP_INCQ:
@@ -181,10 +182,11 @@ target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1, int op)
uint32_t cpu_cc_compute_all(CPUX86State *env, int op)
{
- return helper_cc_compute_all(CC_DST, CC_SRC, op);
+ return helper_cc_compute_all(CC_DST, CC_SRC, CC_SRC2, op);
}
-target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1, int op)
+target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1,
+ target_ulong src2, int op)
{
switch (op) {
default: /* should never happen */
@@ -225,11 +227,11 @@ target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1, int op)
return compute_c_addl(dst, src1);
case CC_OP_ADCB:
- return compute_c_adcb(dst, src1);
+ return compute_c_adcb(dst, src1, src2);
case CC_OP_ADCW:
- return compute_c_adcw(dst, src1);
+ return compute_c_adcw(dst, src1, src2);
case CC_OP_ADCL:
- return compute_c_adcl(dst, src1);
+ return compute_c_adcl(dst, src1, src2);
case CC_OP_SUBB:
return compute_c_subb(dst, src1);
@@ -239,11 +241,11 @@ target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1, int op)
return compute_c_subl(dst, src1);
case CC_OP_SBBB:
- return compute_c_sbbb(dst, src1);
+ return compute_c_sbbb(dst, src1, src2);
case CC_OP_SBBW:
- return compute_c_sbbw(dst, src1);
+ return compute_c_sbbw(dst, src1, src2);
case CC_OP_SBBL:
- return compute_c_sbbl(dst, src1);
+ return compute_c_sbbl(dst, src1, src2);
case CC_OP_SHLB:
return compute_c_shlb(dst, src1);
@@ -256,11 +258,11 @@ target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1, int op)
case CC_OP_ADDQ:
return compute_c_addq(dst, src1);
case CC_OP_ADCQ:
- return compute_c_adcq(dst, src1);
+ return compute_c_adcq(dst, src1, src2);
case CC_OP_SUBQ:
return compute_c_subq(dst, src1);
case CC_OP_SBBQ:
- return compute_c_sbbq(dst, src1);
+ return compute_c_sbbq(dst, src1, src2);
case CC_OP_SHLQ:
return compute_c_shlq(dst, src1);
#endif