asm_linux_mips64x.s raw

   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
  31