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Text file src/crypto/sha1/sha1block_s390x.s

Documentation: crypto/sha1

     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#include "textflag.h"
     6
     7// func block(dig *digest, p []byte)
     8TEXT ·block(SB), NOSPLIT|NOFRAME, $0-32
     9	MOVBZ  ·useAsm(SB), R4
    10	LMG    dig+0(FP), R1, R3            // R2 = &p[0], R3 = len(p)
    11	MOVBZ  $1, R0                       // SHA-1 function code
    12	CMPBEQ R4, $0, generic
    13
    14loop:
    15	WORD $0xB93E0002 // KIMD R2
    16	BVS  loop        // continue if interrupted
    17	RET
    18
    19generic:
    20	BR ·blockGeneric(SB)

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