MOVW	R1, ret+4(FP)
	RET

TEXT ·Load8(SB),NOSPLIT,$0-5
	MOVW	ptr+0(FP), R1
	SYNC
	MOVB	0(R1), R1
	SYNC
	MOVB	R1, ret+4(FP)
	RET

// uint32 Xadd(uint32 volatile *val, int32 delta)
// Atomically:
//	*val += delta;
//	return *val;
TEXT ·Xadd(SB),NOSPLIT,$0-12
	MOVW	ptr+0(FP), R2
	MOVW	delta+4(FP), R3
	SYNC
try_xadd:
	LL	(R2), R1	// R1 = *R2
	ADDU	R1, R3, R4
	MOVW	R4, R1
	SC	R4, (R2)	// *R2 = R4

	JMP	·Load64(SB)

TEXT ·Xaddint32(SB), NOSPLIT, $0-20
	JMP	·Xadd(SB)

TEXT ·Xaddint64(SB), NOSPLIT, $0-24
	JMP	·Xadd64(SB)

// bool casp(void **val, void *old, void *new)
// Atomically:
//	if(*val == old){
//		*val = new;
//		return 1;
//	} else
//		return 0;
TEXT ·Casp1(SB), NOSPLIT, $0-25
	JMP ·Cas64(SB)

// uint32 xadd(uint32 volatile *ptr, int32 delta)
// Atomically:
//	*val += delta;

//
//go:linkname Load
//go:linkname Loadp
//go:linkname Load64
//go:linkname Loadint32
//go:linkname Loadint64
//go:linkname Loaduintptr
//go:linkname LoadAcquintptr
//go:linkname Xadd
//go:linkname Xaddint32
//go:linkname Xaddint64
//go:linkname Xadd64
//go:linkname Xadduintptr
//go:linkname Xchg
//go:linkname Xchg64
//go:linkname Xchgint32
//go:linkname Xchgint64
//go:linkname Xchguintptr

}

func addrLock(addr *uint64) *spinlock {
	return &locktab[(uintptr(unsafe.Pointer(addr))>>3)%uintptr(len(locktab))].l
}

// Atomic add and return new value.
//
//go:nosplit
func Xadd(val *uint32, delta int32) uint32 {
	for {
		oval := *val
		nval := oval + uint32(delta)
		if Cas(val, oval, nval) {
			return nval
		}
	}
}

//go:noescape

func LoadAcquintptr(ptr *uintptr) uintptr {
	return *ptr
}

//go:noescape
func Xadd64(ptr *uint64, delta int64) uint64

//go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr

//go:noescape
func Xadd(ptr *uint32, delta int32) uint32

//go:noescape
func Xchg64(ptr *uint64, new uint64) uint64

//go:noescape
func Xchg(ptr *uint32, new uint32) uint32

//go:noescape

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build mips64 || mips64le

package atomic

import "unsafe"

//go:noescape
func Xadd(ptr *uint32, delta int32) uint32

//go:noescape
func Xadd64(ptr *uint64, delta int64) uint64

//go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr

//go:noescape

		}
	}
}

//go:nosplit
func And64(addr *uint64, val uint64) (old uint64) {
	for {
		old = *addr
		if Cas64(addr, old, old&val) {
			return old
		}
	}
}

//go:noescape
func Xadd(ptr *uint32, delta int32) uint32

//go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr

//go:noescape
func Xchg(ptr *uint32, new uint32) uint32

//go:noescape

			// pass through to the external linker.
			rr.Xadd = 0
			if target.IsElf() {
				rr.Xadd -= int64(siz)
			}
			rr.Xsym = rs
			break
		}
		if rs != 0 && (ldr.SymSect(rs) != ldr.SymSect(s) || rt == objabi.R_GOTPCREL) {
			// set up addend for eventual relocation via outer symbol.
			rs := rs
			rs, off := FoldSubSymbolOffset(ldr, rs)
			rr.Xadd = r.Add() + off

		if t0 == 0 {
			t0 = cputicks()
		}
		s.acquiretime = t0
	}
	for {
		lockWithRank(&root.lock, lockRankRoot)
		// Add ourselves to nwait to disable "easy case" in semrelease.
		root.nwait.Add(1)
		// Check cansemacquire to avoid missed wakeup.
		if cansemacquire(addr) {
			root.nwait.Add(-1)
			unlock(&root.lock)
			break
		}
		// Any semrelease after the cansemacquire knows we're waiting

				job := atomic.Xadd(&work.markrootNext, +1) - 1
				if job < work.markrootJobs {
					workFlushed += markroot(gcw, job, false)
					continue
				}
			}
			// No heap or root jobs.
			break
		}

		scanobject(b, gcw)

		// Flush background scan work credit.
		if gcw.heapScanWork >= gcCreditSlack {
			gcController.heapScanWork.Add(gcw.heapScanWork)