Created
July 22, 2020 12:05
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mul_256
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| pub fn mul_256(a: &[u64; 4], b: &[u64; 4]) -> [u64; 8] { | |
| let mut carry = 0; | |
| let r0 = mac_with_carry(0, a[0usize], b[0usize], &mut carry); | |
| let r1 = mac_with_carry(0, a[0usize], b[1usize], &mut carry); | |
| let r2 = mac_with_carry(0, a[0usize], b[2usize], &mut carry); | |
| let r3 = mac_with_carry(0, a[0usize], b[3usize], &mut carry); | |
| let r4 = carry; | |
| let mut carry = 0; | |
| let r1 = mac_with_carry(r1, a[1usize], b[0usize], &mut carry); | |
| let r2 = mac_with_carry(r2, a[1usize], b[1usize], &mut carry); | |
| let r3 = mac_with_carry(r3, a[1usize], b[2usize], &mut carry); | |
| let r4 = mac_with_carry(r4, a[1usize], b[3usize], &mut carry); | |
| let r5 = carry; | |
| let mut carry = 0; | |
| let r2 = mac_with_carry(r2, a[2usize], b[0usize], &mut carry); | |
| let r3 = mac_with_carry(r3, a[2usize], b[1usize], &mut carry); | |
| let r4 = mac_with_carry(r4, a[2usize], b[2usize], &mut carry); | |
| let r5 = mac_with_carry(r5, a[2usize], b[3usize], &mut carry); | |
| let r6 = carry; | |
| let mut carry = 0; | |
| let r3 = mac_with_carry(r3, a[3usize], b[0usize], &mut carry); | |
| let r4 = mac_with_carry(r4, a[3usize], b[1usize], &mut carry); | |
| let r5 = mac_with_carry(r5, a[3usize], b[2usize], &mut carry); | |
| let r6 = mac_with_carry(r6, a[3usize], b[3usize], &mut carry); | |
| let r7 = carry; | |
| [r0, r1, r2, r3, r4, r5, r6, r7] | |
| } |
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