| // 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 |
