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

// rvcstore exercises the register-relative compressed stores with offsets
// that set immediate bits 4 and 5, the bare FENCE, and the GOROOT width
// spellings of the loads and stores, byte-parity-checked against go tool asm.

#include "textflag.h"

TEXT ·stores(SB), NOSPLIT, $0
	SD  X9, 24(X8)
	SW  X10, 16(X11)
	FSD F8, 40(X12)
	LD  24(X8), X9
	LW  16(X11), X10
	FLD 40(X12), F8
	RET

TEXT ·fence(SB), NOSPLIT, $0
	FENCE
	ECALL
	RET

// The GOROOT width spellings: MOVW lowers to LW/SW and compresses exactly
// like the base mnemonic, the byte/half and unsigned forms stay wide.
TEXT ·argwidths(SB), NOSPLIT, $0-24
	MOVW  x+0(FP), X9
	MOVW  X9, y+4(FP)
	MOVWU z+8(FP), X10
	MOVB  b+12(FP), X11
	MOVBU c+13(FP), X12
	MOVH  h+16(FP), X13
	MOVHU u+18(FP), X14
	RET

TEXT ·spwidths(SB), NOSPLIT, $32-0
	MOVW 4(SP), X9
	MOVW X9, 8(SP)
	MOV  16(SP), X10
	MOV  X10, 24(SP)
	RET

TEXT ·fpwidths(SB), NOSPLIT, $0-16
	MOVD d+0(FP), F8
	MOVD F8, r+8(FP)
	MOVW w+0(FP), X9
	MOVW X9, v+4(FP)
	RET