Function mask1

instructions.go:131–131

creates a mask with 'n' 1 bits at position 'p'

(n, p uint)

// creates a mask with 'n' 1 bits at position 'p'
func mask1(n, p uint) instruction { return ^(^instruction(0) << n) << p }

// creates a mask with 'n' 0 bits at position 'p'
func mask0(n, p uint) instruction { return ^mask1(n, p) }