/* Fixed point operations helpers */
#if defined(TARGET_PPC64)
-/* multiply high word */
-uint64_t helper_mulhd(uint64_t arg1, uint64_t arg2)
-{
- uint64_t tl, th;
-
- muls64(&tl, &th, arg1, arg2);
- return th;
-}
-
-/* multiply high word unsigned */
-uint64_t helper_mulhdu(uint64_t arg1, uint64_t arg2)
-{
- uint64_t tl, th;
-
- mulu64(&tl, &th, arg1, arg2);
- return th;
-}
-
uint64_t helper_mulldo(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
{
int64_t th;
muls64(&tl, (uint64_t *)&th, arg1, arg2);
/* If th != 0 && th != -1, then we had an overflow */
if (likely((uint64_t)(th + 1) <= 1)) {
- env->xer &= ~(1 << XER_OV);
+ env->ov = 0;
} else {
- env->xer |= (1 << XER_OV) | (1 << XER_SO);
+ env->so = env->ov = 1;
}
return (int64_t)tl;
}
}
#endif
+target_ulong helper_cmpb(target_ulong rs, target_ulong rb)
+{
+ target_ulong mask = 0xff;
+ target_ulong ra = 0;
+ int i;
+
+ for (i = 0; i < sizeof(target_ulong); i++) {
+ if ((rs & mask) == (rb & mask)) {
+ ra |= mask;
+ }
+ mask <<= 8;
+ }
+ return ra;
+}
+
/* shift right arithmetic helper */
target_ulong helper_sraw(CPUPPCState *env, target_ulong value,
target_ulong shift)
shift &= 0x1f;
ret = (int32_t)value >> shift;
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) {
- env->xer &= ~(1 << XER_CA);
+ env->ca = 0;
} else {
- env->xer |= (1 << XER_CA);
+ env->ca = 1;
}
} else {
ret = (int32_t)value;
- env->xer &= ~(1 << XER_CA);
+ env->ca = 0;
}
} else {
ret = (int32_t)value >> 31;
- if (ret) {
- env->xer |= (1 << XER_CA);
- } else {
- env->xer &= ~(1 << XER_CA);
- }
+ env->ca = (ret != 0);
}
return (target_long)ret;
}
shift &= 0x3f;
ret = (int64_t)value >> shift;
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) {
- env->xer &= ~(1 << XER_CA);
+ env->ca = 0;
} else {
- env->xer |= (1 << XER_CA);
+ env->ca = 1;
}
} else {
ret = (int64_t)value;
- env->xer &= ~(1 << XER_CA);
+ env->ca = 0;
}
} else {
ret = (int64_t)value >> 63;
- if (ret) {
- env->xer |= (1 << XER_CA);
- } else {
- env->xer &= ~(1 << XER_CA);
- }
+ env->ca = (ret != 0);
}
return ret;
}
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) ||
(int32_t)arg2 == 0) {
- env->xer |= (1 << XER_OV) | (1 << XER_SO);
+ env->so = env->ov = 1;
env->spr[SPR_MQ] = 0;
return INT32_MIN;
} else {
env->spr[SPR_MQ] = tmp % arg2;
tmp /= (int32_t)arg2;
if ((int32_t)tmp != tmp) {
- env->xer |= (1 << XER_OV) | (1 << XER_SO);
+ env->so = env->ov = 1;
} else {
- env->xer &= ~(1 << XER_OV);
+ env->ov = 0;
}
return tmp;
}
{
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) ||
(int32_t)arg2 == 0) {
- env->xer |= (1 << XER_OV) | (1 << XER_SO);
+ env->so = env->ov = 1;
env->spr[SPR_MQ] = 0;
return INT32_MIN;
} else {
- env->xer &= ~(1 << XER_OV);
+ env->ov = 0;
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2;
return (int32_t)arg1 / (int32_t)arg2;
}