From 28f980744293aa5c8bddaa0e3a3a04c567204574 Mon Sep 17 00:00:00 2001
From: Dmitry Vagner <typecat@Dmitrys-MacBook-Pro.local>
Date: Wed, 21 Sep 2022 16:49:46 -0700
Subject: [PATCH] 0xdeadbeef

---
 evm/src/cpu/kernel/asm/ripemd/ripemd.asm |  2 +-
 evm/src/cpu/kernel/tests/ripemd.rs       | 46 +++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/evm/src/cpu/kernel/asm/ripemd/ripemd.asm b/evm/src/cpu/kernel/asm/ripemd/ripemd.asm
index 156dc496..917ef937 100644
--- a/evm/src/cpu/kernel/asm/ripemd/ripemd.asm
+++ b/evm/src/cpu/kernel/asm/ripemd/ripemd.asm
@@ -80,7 +80,7 @@ process:
     %shl_const(96)
     OR 
     // stack: e' d' c' b' a', VARS
-    %stack (result, VARS: 3) -> (0xdeadbeef, result)
+    %stack (result, VARS: 3, fin) -> (fin, result)
     // stack: 0xdeadbeef, result
     JUMP 
 
diff --git a/evm/src/cpu/kernel/tests/ripemd.rs b/evm/src/cpu/kernel/tests/ripemd.rs
index 60b2dbb8..845c665f 100644
--- a/evm/src/cpu/kernel/tests/ripemd.rs
+++ b/evm/src/cpu/kernel/tests/ripemd.rs
@@ -1,3 +1,4 @@
+use std::str::FromStr;
 use anyhow::Result;
 use ethereum_types::U256;
 
@@ -12,7 +13,7 @@ fn test_ripemd() -> Result<()> {
     let kernel = combined_kernel();
 
     let input: Vec<u32> = vec![
-        26  ,       0x61, 0x62, 
+                    0x61, 0x62, 
         0x63, 0x64, 0x65, 0x66, 
         0x67, 0x68, 0x69, 0x6a, 
         0x6b, 0x6c, 0x6d, 0x6e, 
@@ -24,6 +25,7 @@ fn test_ripemd() -> Result<()> {
     stack_init.push(U256::from_str("0xdeadbeef").unwrap());
 
 
+
     let stack_result = run(
         &kernel.code, 
         kernel.global_labels["ripemd_alt"],
@@ -37,3 +39,45 @@ fn test_ripemd() -> Result<()> {
 
     Ok(())
 }
+
+
+// use std::str::FromStr;
+
+// use anyhow::Result;
+// use ethereum_types::U256;
+// use rand::{thread_rng, Rng};
+// use sha2::{Digest, Sha256};
+
+// use crate::cpu::kernel::aggregator::combined_kernel;
+// use crate::cpu::kernel::interpreter::run;
+
+// #[test]
+// fn test_sha2() -> Result<()> {
+//     let kernel = combined_kernel();
+//     let sha2 = kernel.global_labels["sha2"];
+
+//     let mut rng = thread_rng();
+
+//     let num_bytes = rng.gen_range(0..10000);
+//     let message: Vec<u8> = (0..num_bytes).map(|_| rng.gen()).collect();
+
+//     let mut hasher = Sha256::new();
+//     hasher.update(message.clone());
+//     let expected = format!("{:X}", hasher.finalize());
+
+//     let bytes: Vec<U256> = message.iter().map(|&x| U256::from(x as u32)).collect();
+
+//     let mut initial_stack = vec![U256::from(num_bytes)];
+//     initial_stack.extend(bytes);
+//     initial_stack.push(U256::from_str("0xdeadbeef").unwrap());
+//     initial_stack.reverse();
+
+//     let after_sha2 = run(&kernel.code, sha2, initial_stack, &kernel.prover_inputs)?;
+//     let stack_after_sha2 = after_sha2.stack();
+//     let result = stack_after_sha2[1];
+//     let actual = format!("{:X}", result);
+
+//     assert_eq!(expected, actual);
+
+//     Ok(())
+// }