github.com/twelsh-aw/go/src@v0.0.0-20230516233729-a56fe86a7c81/runtime/duff_s390x.s (about)

     1  // Copyright 2019 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 "go_asm.h"
     6  #include "go_tls.h"
     7  #include "textflag.h"
     8  
     9  // s390x can copy/zero 1-256 bytes with a single instruction,
    10  // so there's no need for these, except to satisfy the prototypes
    11  // in stubs.go.
    12  
    13  TEXT runtime·duffzero(SB),NOSPLIT|NOFRAME,$0-0
    14  	MOVD	$0, 2(R0)
    15  	RET
    16  
    17  TEXT runtime·duffcopy(SB),NOSPLIT|NOFRAME,$0-0
    18  	MOVD	$0, 2(R0)
    19  	RET