mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 05:54:40 +00:00
20 lines
598 B
Go
20 lines
598 B
Go
// Copyright 2014 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.
|
|
|
|
// +build 386 amd64p32 arm nacl armbe m68k mips mipsle mips64p32 mips64p32le nios2 ppc s390 sh shbe sparc
|
|
|
|
package runtime
|
|
|
|
import "unsafe"
|
|
|
|
// On 32-bit systems, the stored uint64 has a 32-bit pointer and 32-bit count.
|
|
|
|
func lfstackPack(node *lfnode, cnt uintptr) uint64 {
|
|
return uint64(uintptr(unsafe.Pointer(node)))<<32 | uint64(cnt)
|
|
}
|
|
|
|
func lfstackUnpack(val uint64) *lfnode {
|
|
return (*lfnode)(unsafe.Pointer(uintptr(val >> 32)))
|
|
}
|