feat: desktop works, not key input

.gitignore

@@ -6,11 +6,12 @@ out/
 !/broadcast
 /broadcast/*/31337/
 /broadcast/**/dry-run/
+broadcast
 
 # Docs
 docs/
 
 # Dotenv file
 .env
 
-target
+target

desktop/README.md

@@ -15,5 +15,5 @@ cargo run -r
 anvil
 
 ```
-anvil -b 1 --no-request-size-limit --disable-block-gas-limit --disable-code-size-limit --disable-min-priority-fee
+anvil -b 0.2 --no-request-size-limit --disable-block-gas-limit --disable-code-size-limit --disable-min-priority-fee --slots-in-an-epoch 1 --order fifo
 ```

foundry.toml

@@ -5,3 +5,8 @@ libs = ["lib"]
 fs_permissions = [{ access = "read", path = "./c8games" }]
 
 # See more config options https://github.com/foundry-rs/foundry/blob/master/crates/config/README.md#all-options
+[rpc_endpoints]
+sepolia = "${RPC_URL}"
+
+[etherscan]
+sepolia = { key = "${ETHERSCAN_API_KEY}" }

script/Emu.s.sol

@@ -1,27 +1,21 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.21;
 
-import {Script, console} from "forge-std/Script.sol";
+import {Script} from "forge-std/Script.sol";
+import {console2} from "forge-std/console2.sol";
 import {Emu} from "../src/Emu.sol";
 
 contract EmulatorScript is Script {
     Emu public emulator;
 
-    function setUp() public {
+    function run() public {
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
+
         emulator = new Emu();
-    }
 
-    function run() public {
-        bytes memory bytecode = vm.readFileBinary("./c8games/PONG");
-        console.logBytes(bytecode);
-        uint8[] memory converted_bytes = new uint8[](bytecode.length);
-        for (uint256 i = 0; i < bytecode.length;) {
-            converted_bytes[i] = uint8(bytecode[i]);
-            unchecked {
-                ++i;
-            }
-        }
-        emulator.load(converted_bytes);
-        emulator.run();
+        console2.log("emulator deployed at: ", address(emulator));
+
+        vm.stopBroadcast();
     }
 }

test/Emu.t.sol

@@ -24,6 +24,23 @@ contract EmuTest is Test {
     // Instruction tests
     // -------------------------------------------------------------------------
 
+    // Test 1: NOP instruction (0x0000)
+    function testExecuteNOP() public {
+        // 0x0000: Nothing
+
+        uint8[] memory program = new uint8[](4);
+        program[0] = 0x00;
+        program[1] = 0x00;
+        program[2] = 0x00;
+        program[3] = 0x00;
+
+        emulator.load(program);
+        emulator.tick();
+        emulator.tick();
+
+        assertEq(emulator.getPC(), 0x204, "PC should be advanced by 2 after NOP instruction");
+    }
+
     // Test 2: CLS instruction (0x00E0)
     function testExecuteCLS() public {
         // 0x00E0: Clear the display