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CALLDATACOPY

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This commit is contained in:
obscuren 2014-06-20 01:10:20 +02:00
parent f63f3853bb
commit 0c6b41f4c9
1 changed files with 21 additions and 2 deletions
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23
ethchain/vm.go
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@ -433,9 +433,28 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro
vm.Printf(" => %d", l)
case CALLDATACOPY:
panic("not implemented")
var (
size = int64(len(closure.Args))
mOff = stack.Pop().Int64()
cOff = stack.Pop().Int64()
l = stack.Pop().Int64()
)
if cOff > size {
cOff = 0
l = 0
} else if cOff+l > size {
l = 0
}
code := closure.Args[cOff : cOff+l]
mem.Set(mOff, l, code)
case CODESIZE:
stack.Push(big.NewInt(int64(len(closure.Script))))
l := big.NewInt(int64(len(closure.Script)))
stack.Push(l)
vm.Printf(" => %d", l)
case CODECOPY:
var (
size = int64(len(closure.Script))