38 lines
774 B
ArmAsm
38 lines
774 B
ArmAsm
// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: BSD-3-Clause
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#include "textflag.h"
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// func casLoop(ptr *int64, old, new int64) bool
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TEXT ·casLoop(SB), NOSPLIT, $0-32
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cas_retry:
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MOV a+0(FP), X10
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LRD (X10), X11
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MOV b+8(FP), X12
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BNE X11, X12, cas_fail
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MOV c+16(FP), X13
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SCD X13, (X10), X14
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BNE X14, X0, cas_retry
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ADDI X0, $1, X15
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MOV X15, ret+24(FP)
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RET
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cas_fail:
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MOV X0, ret+24(FP)
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RET
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// func intToFloat(x int64) float64
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TEXT ·intToFloat(SB), NOSPLIT, $0-16
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MOV a+0(FP), X10
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FCVTDL X10, F10
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FSD F10, ret+8(FP)
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RET
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// func compare(a, b float64) bool
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TEXT ·compare(SB), NOSPLIT, $0-24
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FLD a+0(FP), F10
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FLD b+8(FP), F11
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FLTD F10, F11, X10
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MOV X10, ret+16(FP)
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RET
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