blob: 1e081e2c8c5331058e0fd801006aadeaec49a9e5 [file] [log] [blame]
// 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<ABIInternal>(SB),NOSPLIT,$0-40
#ifndef GOEXPERIMENT_regabiargs
MOV b_base+0(FP), X10
MOV b_len+8(FP), X11
MOVBU c+24(FP), X12 // byte to count
#else
// X10 = b_base
// X11 = b_len
// X12 = b_cap (unused)
// X13 = byte to count (want in X12)
MOV X13, X12
#endif
MOV ZERO, X14 // count
ADD X10, X11 // end
loop:
BEQ X10, X11, done
MOVBU (X10), X15
ADD $1, X10
BNE X12, X15, loop
ADD $1, X14
JMP loop
done:
#ifndef GOEXPERIMENT_regabiargs
MOV X14, ret+32(FP)
#else
MOV X14, X10
#endif
RET
TEXT ·CountString<ABIInternal>(SB),NOSPLIT,$0-32
#ifndef GOEXPERIMENT_regabiargs
MOV s_base+0(FP), X10
MOV s_len+8(FP), X11
MOVBU c+16(FP), X12 // byte to count
#endif
// X10 = s_base
// X11 = s_len
// X12 = byte to count
MOV ZERO, X14 // count
ADD X10, X11 // end
loop:
BEQ X10, X11, done
MOVBU (X10), X15
ADD $1, X10
BNE X12, X15, loop
ADD $1, X14
JMP loop
done:
#ifndef GOEXPERIMENT_regabiargs
MOV X14, ret+24(FP)
#else
MOV X14, X10
#endif
RET