Samples and disams cmd for evm code

ddf17d93 · obscuren · 84adf77b · ddf17d93 · ddf17d93 · ddf17d93
4 changed file
--- a/cmd/disasm/main.go
+++ b/cmd/disasm/main.go
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	"github.com/ethereum/go-ethereum/ethutil"
+	"github.com/ethereum/go-ethereum/vm"
+)
+
+func main() {
+	code, err := ioutil.ReadAll(os.Stdin)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	code = ethutil.Hex2Bytes(string(code[:len(code)-1]))
+	fmt.Printf("%x\n", code)
+
+	for pc := uint64(0); pc < uint64(len(code)); pc++ {
+		op := vm.OpCode(code[pc])
+		fmt.Printf("%-5d  %v", pc, op)
+
+		switch op {
+		case vm.PUSH1, vm.PUSH2, vm.PUSH3, vm.PUSH4, vm.PUSH5, vm.PUSH6, vm.PUSH7, vm.PUSH8, vm.PUSH9, vm.PUSH10, vm.PUSH11, vm.PUSH12, vm.PUSH13, vm.PUSH14, vm.PUSH15, vm.PUSH16, vm.PUSH17, vm.PUSH18, vm.PUSH19, vm.PUSH20, vm.PUSH21, vm.PUSH22, vm.PUSH23, vm.PUSH24, vm.PUSH25, vm.PUSH26, vm.PUSH27, vm.PUSH28, vm.PUSH29, vm.PUSH30, vm.PUSH31, vm.PUSH32:
+			a := uint64(op) - uint64(vm.PUSH1) + 1
+			fmt.Printf("  => %x", code[pc+1:pc+1+a])
+
+			pc += a
+		}
+		fmt.Println()
+	}
+}
--- a/cmd/mist/assets/examples/test.html
+++ b/cmd/mist/assets/examples/test.html
@@ -20,11 +20,10 @@
 		}]
 	}];
 	var address = web3.eth.transact({
-		data: "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b6000816007029050",
+		data: "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b600081600702905091905056",
 		gasprice: "1000000000000000",
 		gas: "10000",
 	});
-	console.log("created contract with addr:"+ address);
 	var contract = web3.eth.contract(address, desc);

 	function calculate() {
@@ -36,9 +35,21 @@
 </script>
 </head>
 <body>
+<h3>Contract content</h3>
+<textarea style="height:100px; width: 300px;" disabled="disabled">
+contract test {
+    function multiply(uint a) returns(uint d) {
+        return a * 7;
+    }
+}
+</textarea>
+<code><pre>
+603880600c6000396000f3006001600060e060020a600035048063c6888fa1140
+05b6021600435602b565b8060005260206000f35b600081600702905091905056</pre></code>

-<div><input type="number" id="value" onkeyup='calculate()'></input></div>
-<div id="result"></div>
+<hr>
+<div>7 x <input type="number" id="value" onkeyup='calculate()'></input> = 
+<span id="result"></spa>

 </body>
 </html>
--- a/cmd/mist/assets/examples/balance.html
+++ b/cmd/mist/assets/examples/balance.html
+<!doctype>
+<html>
+
+<head>
+<script src="../ext/bignumber.min.js"></script>
+<script src="../ext/ethereum.js/dist/ethereum.js"></script>
+<script type="text/javascript">
+   
+    var web3 = require('web3');
+    web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
+
+    function watchBalance() {
+        var coinbase = web3.eth.coinbase;
+        var originalBalance = 0;
+
+        var balance = web3.eth.balanceAt(coinbase);
+        var originalBalance = web3.toDecimal(balance);
+        document.getElementById('original').innerText = 'original balance: ' + originalBalance + '    watching...';
+
+        web3.eth.watch({altered: coinbase}).changed(function() {
+            balance = web3.eth.balanceAt(coinbase)
+            var currentBalance = web3.toDecimal(balance);
+            document.getElementById("current").innerText = 'current: ' + currentBalance;
+            document.getElementById("diff").innerText = 'diff:    ' + (currentBalance - originalBalance);
+        });
+    }
+
+</script>
+</head>
+<body>
+    <h1>coinbase balance</h1>
+    <button type="button" onClick="watchBalance();">watch balance</button>
+    <div></div>
+    <div id="original"></div>
+    <div id="current"></div>
+    <div id="diff"></div>
+</body>
+</html>
+
+
--- a/rpc/packages.go
+++ b/rpc/packages.go
@@ -35,6 +35,19 @@ import (
 	"github.com/ethereum/go-ethereum/xeth"
 )

+func toHex(b []byte) string {
+	return "0x" + ethutil.Bytes2Hex(b)
+}
+func fromHex(s string) []byte {
+	if len(s) > 1 {
+		if s[0:2] == "0x" {
+			s = s[2:]
+		}
+		return ethutil.Hex2Bytes(s)
+	}
+	return nil
+}
+
 type RpcServer interface {
 	Start()
 	Stop()
@@ -163,7 +176,7 @@ func (p *EthereumApi) GetCodeAt(args *GetCodeAtArgs, reply *interface{}) error {
 }

 func (p *EthereumApi) Sha3(args *Sha3Args, reply *interface{}) error {
-	*reply = ethutil.Bytes2Hex(crypto.Sha3(ethutil.Hex2Bytes(args.Data)))
+	*reply = toHex(crypto.Sha3(fromHex(args.Data)))
 	return nil
 }