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Source file src/sync/atomic/64bit_arm.go

Documentation: sync/atomic

  // Copyright 2012 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  package atomic
  
  func loadUint64(addr *uint64) (val uint64) {
  	for {
  		val = *addr
  		if CompareAndSwapUint64(addr, val, val) {
  			break
  		}
  	}
  	return
  }
  
  func storeUint64(addr *uint64, val uint64) {
  	for {
  		old := *addr
  		if CompareAndSwapUint64(addr, old, val) {
  			break
  		}
  	}
  	return
  }
  
  func addUint64(val *uint64, delta uint64) (new uint64) {
  	for {
  		old := *val
  		new = old + delta
  		if CompareAndSwapUint64(val, old, new) {
  			break
  		}
  	}
  	return
  }
  
  func swapUint64(addr *uint64, new uint64) (old uint64) {
  	for {
  		old = *addr
  		if CompareAndSwapUint64(addr, old, new) {
  			break
  		}
  	}
  	return
  }
  
  // Additional ARM-specific assembly routines.
  // Declaration here to give assembly routines correct stack maps for arguments.
  func armCompareAndSwapUint32(addr *uint32, old, new uint32) (swapped bool)
  func armCompareAndSwapUint64(addr *uint64, old, new uint64) (swapped bool)
  func generalCAS64(addr *uint64, old, new uint64) (swapped bool)
  func armAddUint32(addr *uint32, delta uint32) (new uint32)
  func armAddUint64(addr *uint64, delta uint64) (new uint64)
  func armSwapUint32(addr *uint32, new uint32) (old uint32)
  func armSwapUint64(addr *uint64, new uint64) (old uint64)
  func armLoadUint64(addr *uint64) (val uint64)
  func armStoreUint64(addr *uint64, val uint64)
  

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