1 // Copyright 2015 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 // +build mips64 mips64le 6 7 #include "textflag.h" 8 9 // void runtimememclrNoHeapPointers(void*, uintptr) 10 TEXT runtimememclrNoHeapPointers(SB),NOSPLIT,$0-16 11 MOVV ptr+0(FP), R1 12 MOVV n+8(FP), R2 13 ADDV R1, R2, R4 14 15 // if less than 8 bytes, do one byte at a time 16 SGTU $8, R2, R3 17 BNE R3, out 18 19 // do one byte at a time until 8-aligned 20 AND $7, R1, R3 21 BEQ R3, words 22 MOVB R0, (R1) 23 ADDV $1, R1 24 JMP -4(PC) 25 26 words: 27 // do 8 bytes at a time if there is room 28 ADDV $-7, R4, R2 29 30 SGTU R2, R1, R3 31 BEQ R3, out 32 MOVV R0, (R1) 33 ADDV $8, R1 34 JMP -4(PC) 35 36 out: 37 BEQ R1, R4, done 38 MOVB R0, (R1) 39 ADDV $1, R1 40 JMP -3(PC) 41 done: 42 RET 43
