| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| //go:build !purego |
| |
| #include "textflag.h" |
| |
| // func block(dig *digest, p []byte) |
| TEXT ·block(SB), NOSPLIT|NOFRAME, $0-32 |
| MOVBZ ·useAsm(SB), R4 |
| LMG dig+0(FP), R1, R3 // R2 = &p[0], R3 = len(p) |
| MOVBZ $2, R0 // SHA-256 function code |
| CMPBEQ R4, $0, generic |
| |
| loop: |
| KIMD R0, R2 // compute intermediate message digest (KIMD) |
| BVS loop // continue if interrupted |
| RET |
| |
| generic: |
| BR ·blockGeneric(SB) |
