diff options
| author | Henrik Gramner <gramner@twoorioles.com> | 2020-05-10 14:40:14 +0300 |
|---|---|---|
| committer | Henrik Gramner <henrik@gramner.com> | 2020-05-10 15:36:21 +0300 |
| commit | 631d7720fd5cb4c5072aec5270bb444b68b9e0f7 (patch) | |
| tree | 4a16f1d24277879ba218a749cb4078876ebc9b57 /src | |
| parent | eaedb95de65fb5612297b148a306398240e8ad6f (diff) | |
msac: Avoid attempting to refill after eob has already been reached
Utilize the unsigned representation of a signed integer to skip
the refill code if the count was already negative to begin with,
which saves a few clock cycles at the end of each tile.
Diffstat (limited to 'src')
| -rw-r--r-- | src/arm/64/msac.S | 2 | ||||
| -rw-r--r-- | src/x86/msac.asm | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/src/arm/64/msac.S b/src/arm/64/msac.S index 31cc46f..4f9493a 100644 --- a/src/arm/64/msac.S +++ b/src/arm/64/msac.S @@ -216,7 +216,7 @@ L(renorm2): lsl x7, x7, x5 // (~dif + (v << 48)) << d str w4, [x0, #RNG] mvn x7, x7 // ~dif - b.ge 9f + b.hs 9f // refill ldp x3, x4, [x0] // BUF_POS, BUF_END diff --git a/src/x86/msac.asm b/src/x86/msac.asm index f678714..756e19b 100644 --- a/src/x86/msac.asm +++ b/src/x86/msac.asm @@ -157,7 +157,7 @@ cglobal msac_decode_symbol_adapt4, 0, 6, 6 mov [t7+msac.rng], t2d not t4 sub t1d, ecx - jge .end ; no refill required + jae .end ; no refill required ; refill: mov t2, [t7+msac.buf] @@ -504,7 +504,7 @@ cglobal msac_decode_bool, 0, 6, 0 mov [t7+msac.rng], t2d not t4 sub t5d, ecx - jge %%end + jae %%end mov t2, [t7+msac.buf] mov rcx, [t7+msac.end] %if UNIX64 == 0 |