//go:build arm || wasm

// Export some functions via linkname to assembly in sync/atomic.
//
//go:linkname And32
//go:linkname Or32
//go:linkname And64
//go:linkname Or64
//go:linkname Anduintptr
//go:linkname Oruintptr

package atomic

import _ "unsafe" // For linkname

//go:nosplit
func And32(ptr *uint32, val uint32) uint32 {
	for {
		old := *ptr
		if Cas(ptr, old, old&val) {

//go:noescape
func Or32(ptr *uint32, val uint32) uint32

//go:noescape
func And64(ptr *uint64, val uint64) uint64

//go:noescape
func Or64(ptr *uint64, val uint64) uint64

//go:noescape
func Anduintptr(ptr *uintptr, val uintptr) uintptr

//go:noescape
func Oruintptr(ptr *uintptr, val uintptr) uintptr

// NOTE: Do not add atomicxor8 (XOR is not idempotent).

//go:noescape

//go:noescape
func Or32(ptr *uint32, val uint32) uint32

//go:noescape
func And64(ptr *uint64, val uint64) uint64

//go:noescape
func Or64(ptr *uint64, val uint64) uint64

//go:noescape
func Anduintptr(ptr *uintptr, val uintptr) uintptr

//go:noescape
func Oruintptr(ptr *uintptr, val uintptr) uintptr

//go:noescape
func Cas64(ptr *uint64, old, new uint64) bool

//go:noescape

	JMP	internal∕runtime∕atomic·Storeuintptr(SB)

TEXT ·AndInt32(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·And32(SB)

TEXT ·AndUint32(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·And32(SB)

TEXT ·AndUintptr(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·Anduintptr(SB)

TEXT ·AndInt64(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·And64(SB)

TEXT ·AndUint64(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·And64(SB)

	MOVW	ptr+0(FP), R1
	MOVW	val+4(FP), R2

	SYNC
	LL	(R1), R3
	AND	R2, R3, R4
	SC	R4, (R1)
	BEQ	R4, -4(PC)
	SYNC
	MOVW	R3, ret+8(FP)
	RET

// func Anduintptr(addr *uintptr, v uintptr) old uintptr
TEXT ·Anduintptr(SB), NOSPLIT, $0-12
	JMP	·And32(SB)

// func Oruintptr(addr *uintptr, v uintptr) old uintptr
TEXT ·Oruintptr(SB), NOSPLIT, $0-12
	JMP	·Or32(SB)

TEXT ·spinLock(SB),NOSPLIT,$0-4

	MOVV	ptr+0(FP), R1
	MOVV	val+8(FP), R2

	SYNC
	LLV	(R1), R3
	AND	R2, R3, R4
	SCV	R4, (R1)
	BEQ	R4, -3(PC)
	SYNC
	MOVV	R3, ret+16(FP)
	RET

// func Anduintptr(addr *uintptr, v uintptr) old uintptr
TEXT ·Anduintptr(SB), NOSPLIT, $0-24
	JMP	·And64(SB)

// func Oruintptr(addr *uintptr, v uintptr) old uintptr
TEXT ·Oruintptr(SB), NOSPLIT, $0-24
	JMP	·Or64(SB)

//go:noescape
func Or(ptr *uint32, val uint32)

//go:noescape
func And32(ptr *uint32, val uint32) uint32

//go:noescape
func Or32(ptr *uint32, val uint32) uint32

//go:noescape
func Anduintptr(ptr *uintptr, val uintptr) uintptr

//go:noescape
func Oruintptr(ptr *uintptr, val uintptr) uintptr

//go:noescape
func Store(ptr *uint32, val uint32)

//go:noescape

// Add atomically adds delta to x and returns the new value.
func (x *Uintptr) Add(delta uintptr) (new uintptr) { return AddUintptr(&x.v, delta) }

// And atomically performs a bitwise AND operation on x using the bitmask
// provided as mask and returns the old value.
func (x *Uintptr) And(mask uintptr) (old uintptr) { return AndUintptr(&x.v, mask) }

// Or atomically performs a bitwise OR operation on x using the bitmask

pkg sync/atomic, func AndInt64(*int64, int64) int64 #61395
pkg sync/atomic, func AndUint32(*uint32, uint32) uint32 #61395
pkg sync/atomic, func AndUint64(*uint64, uint64) uint64 #61395
pkg sync/atomic, func AndUintptr(*uintptr, uintptr) uintptr #61395
pkg sync/atomic, func OrInt32(*int32, int32) int32 #61395
pkg sync/atomic, func OrInt64(*int64, int64) int64 #61395
pkg sync/atomic, func OrUint32(*uint32, uint32) uint32 #61395