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fixes

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This commit is contained in:
Nicholas Ward 2022-07-28 10:25:20 -07:00
parent c24af37288
commit 6a31a4b7ec
3 changed files with 6 additions and 5 deletions
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5
evm/src/cpu/kernel/asm/sha2.asm
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@ -6,6 +6,8 @@ global sha2_store:
push 0
// stack: addr=0, num_bytes, num_bytes, x[0], x[1], ..., x[num_bytes - 1], retdest
%mstore_kernel_general
// stack: num_bytes, x[0], x[1], ..., x[num_bytes - 1], retdest
dup1
// stack: num_bytes, num_bytes, x[0], x[1], ..., x[num_bytes - 1], retdest
push 1
// stack: addr=1, counter=num_bytes, x[0], x[1], x[2], ... , x[num_bytes-1], retdest
@ -21,8 +23,6 @@ sha2_store_loop:
%mstore_kernel_general
// stack: counter, addr, ... , x[num_bytes-1], retdest
dup1
%eq_const(6)
%jumpi(sha2_stop)
%decrement
// stack: counter-1, addr, ... , x[num_bytes-1], retdest
iszero
@ -36,6 +36,7 @@ sha2_store_end:
JUMPDEST
// stack: counter=0, addr, retdest
%pop2
STOP
JUMP
sha2_stop:
JUMPDEST

3
evm/src/cpu/kernel/asm/util/basic_macros.asm
View File

@ -242,8 +242,7 @@
%macro increment
push 1
swap1
sub
add
%endmacro
%macro decrement

3
evm/src/cpu/kernel/tests/sha2.rs
View File

@ -13,7 +13,7 @@ fn test_sha2_store() -> Result<()> {
let kernel = combined_kernel();
let sha2_store = kernel.global_labels["sha2_store"];
let mut rng = thread_rng();
let num_bytes = rng.gen_range(0..20);
let num_bytes = rng.gen_range(1..17);
let mut bytes: Vec<U256> = Vec::with_capacity(num_bytes);
for _ in 0..num_bytes {
let byte: u8 = rng.gen();
@ -28,6 +28,7 @@ fn test_sha2_store() -> Result<()> {
let mut initial_stack = vec![U256::from(num_bytes)];
initial_stack.extend(bytes);
initial_stack.push(U256::from_str("0xdeadbeef").unwrap());
dbg!(initial_stack.clone());
let stack_with_kernel = run(&kernel.code, sha2_store, initial_stack)?.stack;
dbg!(stack_with_kernel);