logos-storage/plonky2
1
0
Fork 0
mirror of https://github.com/logos-storage/plonky2.git synced 2026-01-11 10:13:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'main' into elliptic_curve_asm

Browse Source 
# Conflicts:
#	evm/src/cpu/kernel/ast.rs
This commit is contained in:
wborgeaud 2022-07-05 09:03:19 +02:00
commit 92bb8d5fa9
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
evm/src/cpu/kernel/ast.rs
View File

@ -40,11 +40,7 @@ pub(crate) enum Literal {
impl Literal {
pub(crate) fn to_trimmed_be_bytes(&self) -> Vec<u8> {
let u256 = self.to_u256();
let num_bytes = if u256.is_zero() {
1 // Hacky
} else {
ceil_div_usize(u256.bits(), 8)
};
let num_bytes = ceil_div_usize(u256.bits(), 8).max(1);
// `byte` is little-endian, so we manually reverse it.
(0..num_bytes).rev().map(|i| u256.byte(i)).collect()
}
@ -74,6 +70,11 @@ mod tests {
#[test]
fn literal_to_be_bytes() {
assert_eq!(
Literal::Decimal("0".into()).to_trimmed_be_bytes(),
vec![0x00]
);
assert_eq!(
Literal::Decimal("768".into()).to_trimmed_be_bytes(),
vec![0x03, 0x00]