diff options
| -rw-r--r-- | vm/closure.go | 17 | ||||
| -rw-r--r-- | vm/vm_debug.go | 5 |
2 files changed, 10 insertions, 12 deletions
diff --git a/vm/closure.go b/vm/closure.go index 97b31ada0..df216f2ae 100644 --- a/vm/closure.go +++ b/vm/closure.go @@ -1,8 +1,10 @@ package vm import ( + "math" "math/big" + "github.com/ethereum/go-ethereum/ethutil" "github.com/ethereum/go-ethereum/state" ) @@ -51,19 +53,14 @@ func (c *Closure) GetByte(x uint64) byte { } func (c *Closure) GetBytes(x, y int) []byte { - if x >= len(c.Code) || y >= len(c.Code) { - return nil - } - - return c.Code[x : x+y] + return c.GetRangeValue(uint64(x), uint64(y)) } -func (c *Closure) GetRangeValue(x, y uint64) []byte { - if x >= uint64(len(c.Code)) || y >= uint64(len(c.Code)) { - return nil - } +func (c *Closure) GetRangeValue(x, size uint64) []byte { + x = uint64(math.Min(float64(x), float64(len(c.Code)))) + y := uint64(math.Min(float64(x+size), float64(len(c.Code)))) - return c.Code[x : x+y] + return ethutil.LeftPadBytes(c.Code[x:y], int(size)) } func (c *Closure) Return(ret []byte) []byte { diff --git a/vm/vm_debug.go b/vm/vm_debug.go index aa3291e66..2ee13c516 100644 --- a/vm/vm_debug.go +++ b/vm/vm_debug.go @@ -716,7 +716,8 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price * //a := big.NewInt(int64(op) - int64(PUSH1) + 1) a := uint64(op - PUSH1 + 1) //pc.Add(pc, ethutil.Big1) - val := ethutil.BigD(closure.GetRangeValue(pc+1, a)) + byts := closure.GetRangeValue(pc+1, a) + val := ethutil.BigD(byts) // Push value to stack stack.Push(val) pc += a @@ -724,7 +725,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price * step += int(op) - int(PUSH1) + 1 - self.Printf(" => 0x%x", val.Bytes()) + self.Printf(" => 0x%x", byts) case POP: stack.Pop() case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16: |