Method step

protocol/txvm/vm.go:158–180

()

}

func (vm *VM) step() {
	opcode, data, n, err := op.DecodeInst(vm.run.prog[vm.run.pc:])
	if err != nil {
		panic(vmError(err))
	}
	vm.opcode = opcode
	vm.data = data
	vm.runHooks(vm.beforeStep)
	vm.charge(1)
	vm.run.pc += n
	switch {
	case op.IsSmallIntOp(opcode):
		vm.push(Int(opcode - op.MinSmallInt))
	case op.IsPushdataOp(opcode):
		d := Bytes(data)
		vm.chargeCreate(d)
		vm.push(d)
	default:
		f := opFuncs[opcode]
		f(vm)
	}
	vm.runHooks(vm.afterStep)
}

func (vm *VM) charge(n int64) {
	vm.runlimit -= n