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src/crypto/sha256/sha256block_s390x.s
1// Copyright 2016 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build !purego
6
7#include "textflag.h"
8
9// func block(dig *digest, p []byte)
10TEXT ·block(SB), NOSPLIT|NOFRAME, $0-32
11 MOVBZ ·useAsm(SB), R4
12 LMG dig+0(FP), R1, R3 // R2 = &p[0], R3 = len(p)
13 MOVBZ $2, R0 // SHA-256 function code
14 CMPBEQ R4, $0, generic
15
16loop:
17 KIMD R0, R2 // compute intermediate message digest (KIMD)
18 BVS loop // continue if interrupted
19 RET
20
21generic:
22 BR ·blockGeneric(SB)
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