github.com/bgentry/go@v0.0.0-20150121062915-6cf5a733d54d/src/runtime/unaligned2.go (about)

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build arm ppc64 ppc64le
     6  
     7  package runtime
     8  
     9  import "unsafe"
    10  
    11  // Note: These routines perform the read with an unspecified endianness.
    12  func readUnaligned32(p unsafe.Pointer) uint32 {
    13  	q := (*[4]byte)(p)
    14  	return uint32(q[0]) + uint32(q[1])<<8 + uint32(q[2])<<16 + uint32(q[3])<<24
    15  }
    16  
    17  func readUnaligned64(p unsafe.Pointer) uint64 {
    18  	q := (*[8]byte)(p)
    19  	return uint64(q[0]) + uint64(q[1])<<8 + uint64(q[2])<<16 + uint64(q[3])<<24 + uint64(q[4])<<32 + uint64(q[5])<<40 + uint64(q[6])<<48 + uint64(q[7])<<56
    20  }