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fix padlength overflow error

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This commit is contained in:
Dmitry Vagner 2022-09-23 17:46:53 -07:00
parent abcb93d0a8
commit 85b88a1cde
2 changed files with 11 additions and 12 deletions
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19
evm/src/cpu/kernel/asm/ripemd/ripemd.asm
View File

@ -92,15 +92,14 @@ global process:
%macro padlength
// stack: count
%mod_const(64)
// stack: count % 64
PUSH 56
SUB
// stack: x = 56 - count % 64
DUP1
%lt_const(9)
// stack: x < 9 , x
// stack: t = count % 64
PUSH 47
DUP2
// stack: t , 47 , t
GT
// stack: t > 47 , t
%mul_const(64)
// stack: 64*(x < 9) , x
ADD
// stack: 64*(x < 9) + x
%add_const(56)
// stack: 56 + 64*(t > 47), t
SUB
%endmacro

4
evm/src/cpu/kernel/tests/ripemd.rs
View File

@ -12,8 +12,8 @@ fn make_input(word: &str) -> Vec<u8> {
#[test]
fn test_ripemd() -> Result<()> {
let input: Vec<u8> = make_input("a");
let expected = U256::from("0x0bdc9d2d256b3ee9daae347be6f4dc835a467ffe");
let input: Vec<u8> = make_input("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
let expected = U256::from("0xb0e20b6e3116640286ed3a87a5713079b21f5189");
let kernel = combined_kernel();
let label = kernel.global_labels["ripemd_alt"];