diff options
Diffstat (limited to 'ethchain')
| -rw-r--r-- | ethchain/vm.go | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/ethchain/vm.go b/ethchain/vm.go index 9dbc13ead..f83258430 100644 --- a/ethchain/vm.go +++ b/ethchain/vm.go @@ -226,28 +226,28 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro require(2) x, y := stack.Popn() // (x + y) % 2 ** 256 - base.Add(x, y) + base.Add(y, x) // Pop result back on the stack stack.Push(base) case SUB: require(2) x, y := stack.Popn() // (x - y) % 2 ** 256 - base.Sub(x, y) + base.Sub(y, x) // Pop result back on the stack stack.Push(base) case MUL: require(2) x, y := stack.Popn() // (x * y) % 2 ** 256 - base.Mul(x, y) + base.Mul(y, x) // Pop result back on the stack stack.Push(base) case DIV: require(2) x, y := stack.Popn() // floor(x / y) - base.Div(x, y) + base.Div(y, x) // Pop result back on the stack stack.Push(base) case SDIV: @@ -270,7 +270,7 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro case MOD: require(2) x, y := stack.Popn() - base.Mod(x, y) + base.Mod(y, x) stack.Push(base) case SMOD: require(2) @@ -292,7 +292,7 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro case EXP: require(2) x, y := stack.Popn() - base.Exp(x, y, Pow256) + base.Exp(y, x, Pow256) stack.Push(base) case NEG: @@ -302,6 +302,7 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro case LT: require(2) y, x := stack.Popn() + vm.Printf(" %v < %v", x, y) // x < y if x.Cmp(y) < 0 { stack.Push(ethutil.BigTrue) @@ -342,20 +343,11 @@ func (vm *Vm) RunClosure(closure *Closure, hook DebugHook) (ret []byte, err erro case AND: require(2) x, y := stack.Popn() - if (x.Cmp(ethutil.BigTrue) >= 0) && (y.Cmp(ethutil.BigTrue) >= 0) { - stack.Push(ethutil.BigTrue) - } else { - stack.Push(ethutil.BigFalse) - } - + stack.Push(base.And(y, x)) case OR: require(2) x, y := stack.Popn() - if (x.Cmp(ethutil.BigInt0) >= 0) || (y.Cmp(ethutil.BigInt0) >= 0) { - stack.Push(ethutil.BigTrue) - } else { - stack.Push(ethutil.BigFalse) - } + stack.Push(base.Or(y, x)) case XOR: require(2) x, y := stack.Popn() |