diff options
Diffstat (limited to 'target/ppc/int_helper.c')
| -rw-r--r-- | target/ppc/int_helper.c | 38 |
1 files changed, 3 insertions, 35 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 2d57c9a1c2..1871792ff6 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -141,16 +141,6 @@ uint64_t helper_divde(CPUPPCState *env, uint64_t rau, uint64_t rbu, uint32_t oe) #endif -target_ulong helper_cntlzw(target_ulong t) -{ - return clz32(t); -} - -target_ulong helper_cnttzw(target_ulong t) -{ - return ctz32(t); -} - #if defined(TARGET_PPC64) /* if x = 0xab, returns 0xababababababababa */ #define pattern(x) (((x) & 0xff) * (~(target_ulong)0 / 0xff)) @@ -174,16 +164,6 @@ uint32_t helper_cmpeqb(target_ulong ra, target_ulong rb) #undef haszero #undef hasvalue -target_ulong helper_cntlzd(target_ulong t) -{ - return clz64(t); -} - -target_ulong helper_cnttzd(target_ulong t) -{ - return ctz64(t); -} - /* Return invalid random number. * * FIXME: Add rng backend or other mechanism to get cryptographically suitable @@ -292,6 +272,7 @@ target_ulong helper_srad(CPUPPCState *env, target_ulong value, #if defined(TARGET_PPC64) target_ulong helper_popcntb(target_ulong val) { + /* Note that we don't fold past bytes */ val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL); val = (val & 0x3333333333333333ULL) + ((val >> 2) & @@ -303,6 +284,7 @@ target_ulong helper_popcntb(target_ulong val) target_ulong helper_popcntw(target_ulong val) { + /* Note that we don't fold past words. */ val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL); val = (val & 0x3333333333333333ULL) + ((val >> 2) & @@ -315,29 +297,15 @@ target_ulong helper_popcntw(target_ulong val) 0x0000ffff0000ffffULL); return val; } - -target_ulong helper_popcntd(target_ulong val) -{ - return ctpop64(val); -} #else target_ulong helper_popcntb(target_ulong val) { + /* Note that we don't fold past bytes */ val = (val & 0x55555555) + ((val >> 1) & 0x55555555); val = (val & 0x33333333) + ((val >> 2) & 0x33333333); val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); return val; } - -target_ulong helper_popcntw(target_ulong val) -{ - val = (val & 0x55555555) + ((val >> 1) & 0x55555555); - val = (val & 0x33333333) + ((val >> 2) & 0x33333333); - val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); - val = (val & 0x00ff00ff) + ((val >> 8) & 0x00ff00ff); - val = (val & 0x0000ffff) + ((val >> 16) & 0x0000ffff); - return val; -} #endif /*****************************************************************************/ |