mem=[0x31, 0x04, 0x33, 0xaa, 0x40, 0x02, 0x80, 0x03, 0x52, 0x00, 0x72, 0x01, 0x73, 0x01, 0xb2, 0x50,0x30, 0x14, 0xc0, 0x01, 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x98, 0xab, 0xd9, 0xa1, 0x9f, 0xa7, 0x83, 0x83, 0xf2, 0xb1, 0x34, 0xb6, 0xe4, 0xb7, 0xca, 0xb8,0xc9, 0xb8, 0x0e, 0xbd, 0x7d, 0x0f, 0xc0, 0xf1, 0xd9, 0x03, 0xc5, 0x3a, 0xc6, 0xc7, 0xc8, 0xc9,0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,0xda, 0xdb, 0xa9, 0xcd, 0xdf, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,0x26, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,0x7d, 0x1f, 0x15, 0x60, 0x4d, 0x4d, 0x52, 0x7d, 0x0e, 0x27, 0x6d, 0x10, 0x6d, 0x5a, 0x06, 0x56,0x47, 0x14, 0x42, 0x0e, 0xb6, 0xb2, 0xb2, 0xe6, 0xeb, 0xb4, 0x83, 0x8e, 0xd7, 0xe5, 0xd4, 0xd9,0xc3, 0xf0, 0x80, 0x95, 0xf1, 0x82, 0x82, 0x9a, 0xbd, 0x95, 0xa4, 0x8d, 0x9a, 0x2b, 0x30, 0x69,0x4a, 0x69, 0x65, 0x55, 0x1c, 0x7b, 0x69, 0x1c, 0x6e, 0x04, 0x74, 0x35, 0x21, 0x26, 0x2f, 0x60,0x03, 0x4e, 0x37, 0x1e, 0x33, 0x54, 0x39, 0xe6, 0xba, 0xb4, 0xa2, 0xad, 0xa4, 0xc5, 0x95, 0xc8,0xc1, 0xe4, 0x8a, 0xec, 0xe7, 0x92, 0x8b, 0xe8, 0x81, 0xf0, 0xad, 0x98, 0xa4, 0xd0, 0xc0, 0x8d,0xac, 0x22, 0x52, 0x65, 0x7e, 0x27, 0x2b, 0x5a, 0x12, 0x61, 0x0a, 0x01, 0x7a, 0x6b, 0x1d, 0x67,0x75, 0x70, 0x6c, 0x1b, 0x11, 0x25, 0x25, 0x70, 0x7f, 0x7e, 0x67, 0x63, 0x30, 0x3c, 0x6d, 0x6a,0x01, 0x51, 0x59, 0x5f, 0x56, 0x13, 0x10, 0x43, 0x19, 0x18, 0xe5, 0xe0, 0xbe, 0xbf, 0xbd, 0xe9,0xf0, 0xf1, 0xf9, 0xfa, 0xab, 0x8f, 0xc1, 0xdf, 0xcf, 0x8d, 0xf8, 0xe7, 0xe2, 0xe9, 0x93, 0x8e,0xec, 0xf5, 0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x37, 0x7a, 0x07, 0x11, 0x1f, 0x1d, 0x68, 0x25, 0x32, 0x77, 0x1e, 0x62, 0x23, 0x5b, 0x47, 0x55,0x53, 0x30, 0x11, 0x42, 0xf6, 0xf1, 0xb1, 0xe6, 0xc3, 0xcc, 0xf8, 0xc5, 0xe4, 0xcc, 0xc0, 0xd3,0x85, 0xfd, 0x9a, 0xe3, 0xe6, 0x81, 0xb5, 0xbb, 0xd7, 0xcd, 0x87, 0xa3, 0xd3, 0x6b, 0x36, 0x6f,0x6f, 0x66, 0x55, 0x30, 0x16, 0x45, 0x5e, 0x09, 0x74, 0x5c, 0x3f, 0x29, 0x2b, 0x66, 0x3d, 0x0d,0x02, 0x30, 0x28, 0x35, 0x15, 0x09, 0x15, 0xdd, 0xec, 0xb8, 0xe2, 0xfb, 0xd8, 0xcb, 0xd8, 0xd1,0x8b, 0xd5, 0x82, 0xd9, 0x9a, 0xf1, 0x92, 0xab, 0xe8, 0xa6, 0xd6, 0xd0, 0x8c, 0xaa, 0xd2, 0x94,0xcf, 0x45, 0x46, 0x67, 0x20, 0x7d, 0x44, 0x14, 0x6b, 0x45, 0x6d, 0x54, 0x03, 0x17, 0x60, 0x62,0x55, 0x5a, 0x4a, 0x66, 0x61, 0x11, 0x57, 0x68, 0x75, 0x05, 0x62, 0x36, 0x7d, 0x02, 0x10, 0x4b,0x08, 0x22, 0x42, 0x32, 0xba, 0xe2, 0xb9, 0xe2, 0xd6, 0xb9, 0xff, 0xc3, 0xe9, 0x8a, 0x8f, 0xc1,0x8f, 0xe1, 0xb8, 0xa4, 0x96, 0xf1, 0x8f, 0x81, 0xb1, 0x8d, 0x89, 0xcc, 0xd4, 0x78, 0x76, 0x61,0x72, 0x3e, 0x37, 0x23, 0x56, 0x73, 0x71, 0x79, 0x63, 0x7c, 0x08, 0x11, 0x20, 0x69, 0x7a, 0x14,0x68, 0x05, 0x21, 0x1e, 0x32, 0x27, 0x59, 0xb7, 0xcf, 0xab, 0xdd, 0xd5, 0xcc, 0x97, 0x93, 0xf2,0xe7, 0xc0, 0xeb, 0xff, 0xe9, 0xa3, 0xbf, 0xa1, 0xab, 0x8b, 0xbb, 0x9e, 0x9e, 0x8c, 0xa0, 0xc1,0x9b, 0x5a, 0x2f, 0x2f, 0x4e, 0x4e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
vm_instructions= ["jmp", "movr", "movm", "add", "xor", "cmp", "jmpe", "hlt"]
vm_segment_size=0x10
cs=4
ds=5
def ModDetect(opcode):
    if (opcode&0x10)==0:
        return False
    return True
def GetOpcode(opcode):
    return (opcode>>5)
def GetOperand1(opcode):
    return (opcode&0x0F)
########################################################################
class _VM_CPU:
    vm_ip=0
    vm_reg=[0 for i in range(6)]
    vm_flag=0
class VirtualMachine:
    vm_cpu=_VM_CPU()
    mem=[]
    def __init__(self,mem):
        self.mem=mem
        self.vm_cpu.vm_reg[ds]=0x10
        while 1:
            self.execute(self.vm_cpu.vm_ip)

    def execute(self,ip):
        if (ip>(len(self.mem)-1)):
            return False
        opcode=self.mem[ip]
        vm_opcode=GetOpcode(opcode)
        vm_mod=ModDetect(opcode)
        vm_operand1=GetOperand1(opcode)
        #if vm_mod:
            #vm_operand2=self.mem[ip+1]
        vm_operand2=self.mem[ip+1]
        self.vm_cpu.vm_ip+=2
        if vm_opcode==0:
            if vm_mod:
                if vm_operand2>=0x10:
                    self.vm_cpu.vm_reg[cs]=0x10
                print "%X %s r%d,%X" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_ip=self.vm_cpu.vm_reg[cs]*0x10+(vm_operand2-self.vm_cpu.vm_reg[cs])*0x10+self.vm_cpu.vm_reg[vm_operand1]
            else:
                print "%X %s r%d" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1)
                self.vm_cpu.vm_ip=vm_cpu.vm_reg[cs]*0x10+vm_cpu.vm_reg[vm_operand1]
        elif vm_opcode==1:
            if vm_mod:
                print "%X %s r%d,%X" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]=vm_operand2
            else:
                print "%X %s r%d,r%d" % (opcode,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]=self.vm_cpu.vm_reg[vm_operand1]
        elif vm_opcode==2:
            if vm_mod==False:
                print "%X %s r%d,[ds:r%d]" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]=self.mem[self.vm_cpu.vm_reg[ds]*0x10+self.vm_cpu.vm_reg[vm_operand2]]
            else:
                print "%X %s [ds:r%d],r%d" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.mem[self.vm_cpu.vm_reg[ds]*0x10+self.vm_cpu.vm_reg[vm_operand1]]=self.vm_cpu.vm_reg[vm_operand2]
        elif vm_opcode==3:
            if vm_mod:
                print "%X %s r%d,%X" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]+=vm_operand2
            else:
                print "%X %s r%d,r%d" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]+=self.vm_cpu.vm_reg[vm_operand2]
        elif vm_opcode==4:
            if vm_mod:
                print "%X %s r%d,%X" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]^=vm_operand2
            else:
                print "%X %s r%d,r%d" % (opcode,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                self.vm_cpu.vm_reg[vm_operand1]^=self.vm_cpu.vm_reg[vm_operand2]
        elif vm_opcode==5:
            if vm_mod:
                print "%X %s r%d,%X" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                if(self.vm_cpu.vm_reg[vm_operand1]==vm_operand2):
                    self.vm_cpu.vm_flag=0
                elif(self.vm_cpu.vm_reg[vm_operand1]>vm_operand2):
                    self.vm_cpu.vm_flag=1
                else:
                    self.vm_cpu.vm_flag=0xff
            else:
                print "%X %s r%d,r%d" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                if(self.vm_cpu.vm_reg[vm_operand1]==self.vm_cpu.vm_reg[vm_operand2]):
                    self.vm_cpu.vm_flag=0
                elif(self.vm_cpu.vm_reg[vm_operand1]>self.vm_cpu.vm_reg[vm_operand2]):
                    self.vm_cpu.vm_flag=1
                else:
                    self.vm_cpu.vm_flag=0xff
        elif vm_opcode==6:
            if vm_mod:
                print "%X %s r%d,%X" %  (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1,vm_operand2)
                if self.vm_cpu.vm_flag==0:
                #far jump
                    if vm_operand2>=0x10:
                        self.vm_cpu.vm_reg[cs]=0x10
                    self.vm_cpu.vm_ip=vm_cpu.vm_reg[cs]*0x10+(vm_operand2-vm_cpu.vm_reg[cs])*0x10+vm_cpu.vm_reg[vm_operand1]
            else:
                print "%X %s r%d" % (self.vm_cpu.vm_ip,vm_instructions[vm_opcode],vm_operand1)
                if self.vm_cpu.vm_flag==0:
                    self.vm_cpu.vm_ip=self.vm_cpu.vm_reg[cs]*0x10+self.vm_cpu.vm_reg[vm_operand1]
                    #len 1
                    self.vm_cpu.vm_ip-=1
        else:
            for i in len(self.mem):
                print "%c" % (mem[i])
            exit()
        print "ip:%X" %(self.vm_cpu.vm_ip)
        print "flag:%X" % (self.vm_cpu.vm_flag)
        print "r0:%X" % (self.vm_cpu.vm_reg[0])
        print "r1:%X" % (self.vm_cpu.vm_reg[1])
        print "r2:%X" % (self.vm_cpu.vm_reg[2])
        print "r3:%X" % (self.vm_cpu.vm_reg[3])
        print "cs:%X" % (self.vm_cpu.vm_reg[cs])
        print "ds:%X" % (self.vm_cpu.vm_reg[ds])
        return True
vm=VirtualMachine(mem)