mirror of
https://github.com/discountry/ritmex-bot.git
synced 2026-09-11 09:18:08 +00:00
30 lines
522 B
Go
30 lines
522 B
Go
package ecgfp5
|
|
|
|
import (
|
|
"math/bits"
|
|
)
|
|
|
|
type U128 struct{ Hi, Lo uint64 }
|
|
|
|
func U128From64(v uint64) U128 { return U128{Lo: v} }
|
|
|
|
func (u U128) Add64(n uint64) (v U128) {
|
|
var carry uint64
|
|
v.Lo, carry = bits.Add64(u.Lo, n, 0)
|
|
v.Hi = u.Hi + carry
|
|
return v
|
|
}
|
|
|
|
func (u U128) Sub64(n uint64) (v U128) {
|
|
var borrowed uint64
|
|
v.Lo, borrowed = bits.Sub64(u.Lo, n, 0)
|
|
v.Hi = u.Hi - borrowed
|
|
return v
|
|
}
|
|
|
|
func (u U128) Mul64(n uint64) (dest U128) {
|
|
dest.Hi, dest.Lo = bits.Mul64(u.Lo, n)
|
|
dest.Hi += u.Hi * n
|
|
return dest
|
|
}
|