From b608a80ef154ac7847c3f6dbb8727f8d83aca735 Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Sun, 19 Jan 2014 01:02:22 +0100
Subject: More opcodes
---
block_manager.go | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/block_manager.go b/block_manager.go
index 44b5461dc..9322d0d3a 100644
--- a/block_manager.go
+++ b/block_manager.go
@@ -524,7 +524,16 @@ out:
case oIND:
bm.stack.Push(big.NewInt(int64(pc)))
case oEXTRO:
+ memAddr := bm.stack.Pop()
+ contractAddr := bm.stack.Pop().Bytes()
+
+ // Push the contract's memory on to the stack
+ bm.stack.Push(getContractMemory(block, contractAddr, memAddr))
case oBALANCE:
+ // Pushes the balance of the popped value on to the stack
+ d := block.State().Get(bm.stack.Pop().String())
+ ether := ethutil.NewEtherFromData([]byte(d))
+ bm.stack.Push(ether.Amount)
case oMKTX:
case oSUICIDE:
}
@@ -533,3 +542,20 @@ out:
bm.stack.Print()
}
+
+// Returns an address from the specified contract's address
+func getContractMemory(block *ethutil.Block, contractAddr []byte, memAddr *big.Int) *big.Int {
+ contract := block.GetContract(contractAddr)
+ if contract == nil {
+ log.Panicf("invalid contract addr %x", contractAddr)
+ }
+ val := contract.State().Get(memAddr.String())
+
+ // decode the object as a big integer
+ decoder := ethutil.NewRlpDecoder([]byte(val))
+ if decoder.IsNil() {
+ return ethutil.BigFalse
+ }
+
+ return decoder.AsBigInt()
+}
--
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