27 lines
603 B
ArmAsm
27 lines
603 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 readCSR(csr int64) int64
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TEXT ·readCSR(SB), NOSPLIT, $0-16
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MOV a+0(FP), X10
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CSRRS $0x300, X0, X11
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MOV X11, ret+8(FP)
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RET
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// func setCSRBit(csr, bit int64) int64
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TEXT ·setCSRBit(SB), NOSPLIT, $0-24
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MOV a+0(FP), X10
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MOV b+8(FP), X11
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CSRRS $0x304, X11, X12
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MOV X12, ret+16(FP)
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RET
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// func writeCSR(val int64) int64
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TEXT ·writeCSR(SB), NOSPLIT, $0-16
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MOV a+0(FP), X10
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CSRRW $0x305, X10, X11
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MOV X11, ret+8(FP)
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RET
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