skein256_amd64.go

// +build amd64

package skein256

import "unsafe"

func bytesToBlock(block *[4]uint64, src []byte) {
    srcPtr := (*[4]uint64)(unsafe.Pointer(&src[0]))

    block[0] = srcPtr[0]
    block[1] = srcPtr[1]
    block[2] = srcPtr[2]
    block[3] = srcPtr[3]
}

func blockToBytes(dst []byte, block *[4]uint64) {
    dstPtr := (*[4]uint64)(unsafe.Pointer(&dst[0]))

    dstPtr[0] = block[0]
    dstPtr[1] = block[1]
    dstPtr[2] = block[2]
    dstPtr[3] = block[3]
}