// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: BSD-3-Clause

#include "textflag.h"

// func readCSR(csr int64) int64
// Reads a CSR into the return value.
TEXT ·readCSR(SB), NOSPLIT, $0-16
	LD a+0(FP), A0
	CSRRS $0x300, X0, A1
	SD A1, ret+8(FP)
	RET

// func setCSRBit(csr, bit int64) int64
TEXT ·setCSRBit(SB), NOSPLIT, $0-24
	LD a+0(FP), A0
	LD b+8(FP), A1
	CSRRS $0x304, A1, A2
	SD A2, ret+16(FP)
	RET

// func writeCSR(val int64) int64
TEXT ·writeCSR(SB), NOSPLIT, $0-16
	LD a+0(FP), A0
	CSRRW $0x305, A0, A1
	SD A1, ret+8(FP)
	RET