github.com/ice-blockchain/go/src@v0.0.0-20240403114104-1564d284e521/crypto/sha256/sha256block_s390x.s (about)

     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)
    10  TEXT ·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  
    16  loop:
    17  	KIMD R0, R2      // compute intermediate message digest (KIMD)
    18  	BVS  loop        // continue if interrupted
    19  	RET
    20  
    21  generic:
    22  	BR ·blockGeneric(SB)