set_bits.go

gistfile1.go

package main

import (
	"fmt"
)

func main() {
	var i uint32

	// set the first 5 bits with the num 12
	i = 12
	fmt.Printf("%016b\n", i)
	//  0000000000010110

	// also set from bit 5 the num 13
	i = 12 | 13<<5
	fmt.Printf("%016b\n", i)

	// also set from bit 10 the num 14
	i = 12 | 13<<5 | 14<<10
	fmt.Printf("%016b\n", i)

	x := (i >> 0) & ((1 << 5) - 1)
	fmt.Println("-------------")
	fmt.Printf("%016b\n", 1<<5)
	fmt.Printf("%016b\n", ((1 << 5) - 1))
	fmt.Println(x)

	x = (i >> 5) & ((1 << 5) - 1)
	fmt.Println(x)

	x = (i >> 10) & ((1 << 5) - 1)
	fmt.Println(x)
}