1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
#[inline(always)]
pub const fn adc32(a: u32, b: u32, carry: u32) -> (u32, u32) {
let ret = (a as u64) + (b as u64) + (carry as u64);
(ret as u32, (ret >> 32) as u32)
}
#[inline(always)]
pub const fn adc64(a: u64, b: u64, carry: u64) -> (u64, u64) {
let ret = (a as u128) + (b as u128) + (carry as u128);
(ret as u64, (ret >> 64) as u64)
}
#[inline(always)]
pub const fn sbb32(a: u32, b: u32, borrow: u32) -> (u32, u32) {
let ret = (a as u64).wrapping_sub((b as u64) + ((borrow >> 31) as u64));
(ret as u32, (ret >> 32) as u32)
}
#[inline(always)]
pub const fn sbb64(a: u64, b: u64, borrow: u64) -> (u64, u64) {
let ret = (a as u128).wrapping_sub((b as u128) + ((borrow >> 63) as u128));
(ret as u64, (ret >> 64) as u64)
}
#[inline(always)]
pub const fn mac32(a: u32, b: u32, c: u32, carry: u32) -> (u32, u32) {
let ret = (a as u64) + ((b as u64) * (c as u64)) + (carry as u64);
(ret as u32, (ret >> 32) as u32)
}
#[inline(always)]
pub const fn mac64(a: u64, b: u64, c: u64, carry: u64) -> (u64, u64) {
let ret = (a as u128) + ((b as u128) * (c as u128)) + (carry as u128);
(ret as u64, (ret >> 64) as u64)
}