Function fiat_crypto::poly1305_32::fiat_poly1305_subborrowx_u26
source · pub fn fiat_poly1305_subborrowx_u26(
out1: &mut u32,
out2: &mut fiat_poly1305_u1,
arg1: fiat_poly1305_u1,
arg2: u32,
arg3: u32
)
Expand description
The function fiat_poly1305_subborrowx_u26 is a subtraction with borrow.
Postconditions: out1 = (-arg1 + arg2 + -arg3) mod 2^26 out2 = -⌊(-arg1 + arg2 + -arg3) / 2^26⌋
Input Bounds: arg1: [0x0 ~> 0x1] arg2: [0x0 ~> 0x3ffffff] arg3: [0x0 ~> 0x3ffffff] Output Bounds: out1: [0x0 ~> 0x3ffffff] out2: [0x0 ~> 0x1]