Some bitoperations in go

main.go

package main

import (
	"fmt"
	"strconv"
)

func main() {
	fmt.Println("hello")

	fmt.Printf("^2 index  = %3d %2d %2d %2d %1d %1d %1d %1d\n", 8, 7, 6, 5, 4, 3, 2, 1)
	fmt.Printf("^2 result = %3d %2d %2d %2d %1d %1d %1d %1d\n\n", 128, 64, 32, 16, 8, 4, 2, 1)

	var x, y int = 100, 90

	fmt.Printf("x = %3d - %s\n", x, strconv.FormatInt(int64(x), 2))
	fmt.Printf("y = %3d - %s\n\n", y, strconv.FormatInt(int64(y), 2))

	xandy := x & y
	xory := x | y
	fmt.Printf("x & y = %3d - %s\n", xandy, strconv.FormatInt(int64(xandy), 2))
	fmt.Printf("y | y = %3d - %s\n\n", xory, strconv.FormatInt(int64(xory), 2))

	xy := x + y
	xysl2 := xy >> 2
	fmt.Printf("x + y      = %3d - %9s\n", xy, strconv.FormatInt(int64(xy), 2))
	fmt.Printf("x + y >> 2 = %3d - %9s\n", xysl2, strconv.FormatInt(int64(xysl2), 2))
}