| // Copyright 2020 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| #include "go_asm.h" | |
| #include "textflag.h" | |
| TEXT ·Count(SB),NOSPLIT,$0-40 | |
| MOV b_base+0(FP), A1 | |
| MOV b_len+8(FP), A2 | |
| MOVBU c+24(FP), A3 // byte to count | |
| MOV ZERO, A4 // count | |
| ADD A1, A2 // end | |
| loop: | |
| BEQ A1, A2, done | |
| MOVBU (A1), A5 | |
| ADD $1, A1 | |
| BNE A3, A5, loop | |
| ADD $1, A4 | |
| JMP loop | |
| done: | |
| MOV A4, ret+32(FP) | |
| RET | |
| TEXT ·CountString(SB),NOSPLIT,$0-32 | |
| MOV s_base+0(FP), A1 | |
| MOV s_len+8(FP), A2 | |
| MOVBU c+16(FP), A3 // byte to count | |
| MOV ZERO, A4 // count | |
| ADD A1, A2 // end | |
| loop: | |
| BEQ A1, A2, done | |
| MOVBU (A1), A5 | |
| ADD $1, A1 | |
| BNE A3, A5, loop | |
| ADD $1, A4 | |
| JMP loop | |
| done: | |
| MOV A4, ret+24(FP) | |
| RET |