github.com/twelsh-aw/go/src@v0.0.0-20230516233729-a56fe86a7c81/runtime/internal/syscall/asm_linux_mips64x.s (about)

     1  // Copyright 2022 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 linux && (mips64 || mips64le)
     6  
     7  #include "textflag.h"
     8  
     9  // func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
    10  TEXT ·Syscall6(SB),NOSPLIT,$0-80
    11  	MOVV	num+0(FP), R2	// syscall entry
    12  	MOVV	a1+8(FP), R4
    13  	MOVV	a2+16(FP), R5
    14  	MOVV	a3+24(FP), R6
    15  	MOVV	a4+32(FP), R7
    16  	MOVV	a5+40(FP), R8
    17  	MOVV	a6+48(FP), R9
    18  	MOVV	R0, R3	// reset R3 to 0 as 1-ret SYSCALL keeps it
    19  	SYSCALL
    20  	BEQ	R7, ok
    21  	MOVV	$-1, R1
    22  	MOVV	R1, r1+56(FP)
    23  	MOVV	R0, r2+64(FP)
    24  	MOVV	R2, errno+72(FP)
    25  	RET
    26  ok:
    27  	MOVV	R2, r1+56(FP)
    28  	MOVV	R3, r2+64(FP)
    29  	MOVV	R0, errno+72(FP)
    30  	RET