return 0;
}
-void helper_mulq_EAX_T0(CPUX86State *env, target_ulong t0)
-{
- uint64_t r0, r1;
-
- mulu64(&r0, &r1, EAX, t0);
- EAX = r0;
- EDX = r1;
- CC_DST = r0;
- CC_SRC = r1;
-}
-
-void helper_imulq_EAX_T0(CPUX86State *env, target_ulong t0)
-{
- uint64_t r0, r1;
-
- muls64(&r0, &r1, EAX, t0);
- EAX = r0;
- EDX = r1;
- CC_DST = r0;
- CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
-}
-
-target_ulong helper_imulq_T0_T1(CPUX86State *env, target_ulong t0,
- target_ulong t1)
-{
- uint64_t r0, r1;
-
- muls64(&r0, &r1, t0, t1);
- CC_DST = r0;
- CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
- return r0;
-}
-
void helper_divq_EAX(CPUX86State *env, target_ulong t0)
{
uint64_t r0, r1;
}
#endif
+#if TARGET_LONG_BITS == 32
+# define ctztl ctz32
+# define clztl clz32
+#else
+# define ctztl ctz64
+# define clztl clz64
+#endif
+
/* bit operations */
-target_ulong helper_bsf(target_ulong t0)
+target_ulong helper_ctz(target_ulong t0)
{
- int count;
- target_ulong res;
-
- res = t0;
- count = 0;
- while ((res & 1) == 0) {
- count++;
- res >>= 1;
- }
- return count;
+ return ctztl(t0);
}
-target_ulong helper_lzcnt(target_ulong t0, int wordsize)
+target_ulong helper_clz(target_ulong t0)
{
- int count;
- target_ulong res, mask;
+ return clztl(t0);
+}
- if (wordsize > 0 && t0 == 0) {
- return wordsize;
- }
- res = t0;
- count = TARGET_LONG_BITS - 1;
- mask = (target_ulong)1 << (TARGET_LONG_BITS - 1);
- while ((res & mask) == 0) {
- count--;
- res <<= 1;
- }
- if (wordsize > 0) {
- return wordsize - 1 - count;
+target_ulong helper_pdep(target_ulong src, target_ulong mask)
+{
+ target_ulong dest = 0;
+ int i, o;
+
+ for (i = 0; mask != 0; i++) {
+ o = ctztl(mask);
+ mask &= mask - 1;
+ dest |= ((src >> i) & 1) << o;
}
- return count;
+ return dest;
}
-target_ulong helper_bsr(target_ulong t0)
+target_ulong helper_pext(target_ulong src, target_ulong mask)
{
- return helper_lzcnt(t0, 0);
+ target_ulong dest = 0;
+ int i, o;
+
+ for (o = 0; mask != 0; o++) {
+ i = ctztl(mask);
+ mask &= mask - 1;
+ dest |= ((src >> i) & 1) << o;
+ }
+ return dest;
}
#define SHIFT 0