diff options
| author | sigsegv7 <ian@vegaa.systems> | 2023-09-18 04:43:13 -0400 |
|---|---|---|
| committer | sigsegv7 <ian@vegaa.systems> | 2023-09-18 04:43:13 -0400 |
| commit | 376a883dea5caa28ae66267bd957699ad496b5d5 (patch) | |
| tree | 5fda1ef7779231a94d11712bd36f573cdf5d9a36 /src/sse_accel.S | |
| parent | b0f9a0d87820b1e32e93bbf6a93031e308c182a8 (diff) | |
cleanup comments
Signed-off-by: sigsegv7 <ian@vegaa.systems>
Diffstat (limited to 'src/sse_accel.S')
| -rw-r--r-- | src/sse_accel.S | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/src/sse_accel.S b/src/sse_accel.S index dab5dce..98a5ea0 100644 --- a/src/sse_accel.S +++ b/src/sse_accel.S @@ -34,15 +34,10 @@ * accel_invert128(uint64_t addr) */ accel_invert128: - movq %rdi, %rax - movdqu (%rax), %xmm0 + movq %rdi, %rax // Store first argument in %rax + movdqu (%rax), %xmm0 // Read 128 bits from ptr in %rax into %xmm0 - /* - * Set %xmm1 to all 1s and emulate NOT for %xmm0. - * Result of inversion will be stored in %xmm1. - */ - pcmpeqb %xmm1, %xmm1 - pxor %xmm0, %xmm1 - - movdqu %xmm1, (%rax) + pcmpeqb %xmm1, %xmm1 // Set %xmm1 to all 1s + pxor %xmm0, %xmm1 // NOT %xmm0; result stored in %xmm1 + movdqu %xmm1, (%rax) // Writeback the result retq |