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lldbinit.py
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lldbinit.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
Similar implementation of .gdbinit from fG! for lldb in python
How to install it:
cp lldbinit.py /Library/Python/2.7/site-packages
in $HOME/.lldbinit add:
command script import lldbinit
Commands which are implemented:
stepo - step over some instructions(call/movs/stos/cmps/loop)
dd - dump hex data at certain address(compatibility with .gdbinit)
this shoud be db command
ctx/context - dump registers and assembly
lb - load breakpoints from file and apply(only func names)
u - dump instructions at certain address(SoftICE u command style)
ddword - dump data as dword
dq - dump data as qword
dw - dump data as word
iphone - connect to debugserver running on iPhone
'''
if __name__ == "__main__":
print("Run only as script from lldb... Not as standalone program")
try:
import lldb
except:
raise ImportError
import thread
import time
import struct
old_eax = 0
old_ecx = 0
old_edx = 0
old_ebx = 0
old_esp = 0
old_ebp = 0
old_esi = 0
old_edi = 0
old_eip = 0
old_eflags = 0
old_cs = 0
old_ds = 0
old_fs = 0
old_gs = 0
old_ss = 0
old_es = 0
old_rax = 0
old_rcx = 0
old_rdx = 0
old_rbx = 0
old_rsp = 0
old_rbp = 0
old_rsi = 0
old_rdi = 0
old_r8 = 0
old_r9 = 0
old_r10 = 0
old_r11 = 0
old_r12 = 0
old_r13 = 0
old_r14 = 0
old_r15 = 0
old_rflags = 0
old_rip = 0
old_arm_r0 = 0
old_arm_r1 = 0
old_arm_r2 = 0
old_arm_r3 = 0
old_arm_r4 = 0
old_arm_r5 = 0
old_arm_r6 = 0
old_arm_r7 = 0
old_arm_r8 = 0
old_arm_r9 = 0
old_arm_r10 = 0
old_arm_r11 = 0
old_arm_r12 = 0
old_arm_sp = 0
old_arm_lr = 0
old_arm_pc = 0
old_arm_cpsr = 0
BLACK = 0
RED = 1
GREEN = 2
YELLOW = 3
BLUE = 4
MAGENTA = 5
CYAN = 6
WHITE = 7
COLOR_REGNAME = GREEN
COLOR_REGVAL = WHITE
COLOR_REGVAL_MODIFIED = RED
COLOR_SEPARATOR = BLUE
COLOR_CPUFLAGS = RED
COLOR_HIGHLIGHT_LINE = CYAN
arm_type = "thumbv7-apple-ios"
GlobalListOutput = []
hook_stop_added = 0
# For debug
Isdprint = False
def dprint(msg):
global Isdprint
global GlobalListOutput
if Isdprint is True:
GlobalListOutput.append(msg)
def wait_for_hook_stop():
while True:
dprint("Waiting...")
res = lldb.SBCommandReturnObject()
handleCmd = lldb.debugger.GetCommandInterpreter().HandleCommand
handleCmd("target stop-hook add -o \"handleHookStop\"", res)
if res.Succeeded() is True:
return
time.sleep(0.05)
def __lldb_init_module(debugger, internal_dict):
'''
we can execute commands using debugger.HandleCommand which makes all
outptut to default lldb console. With GetCommandinterpreter().
HandleCommand() we can consume all output with SBCommandReturnObject
and parse data before we send it to output (eg. modify it)
'''
global hook_stop_added
'''
If I'm running from $HOME where .lldbinit is located, seems like lldb
will load.lldbinit 2 times, thus this dirty hack is here to prevent
doulbe loading...
if somebody knows better way, would be great to know :)
'''
dbg = lldb.debugger
instanceName = dbg.GetInstanceName()
var = dbg.GetInternalVariableValue("stop-disassembly-count", instanceName)
if var.IsValid():
var = var.GetStringAtIndex(0)
if var == "0":
dprint("reloaded.")
return
res = lldb.SBCommandReturnObject()
handleCmd = dbg.GetCommandInterpreter().HandleCommand
handleCmd("settings set target.x86-disassembly-flavor intel", res)
handleCmd("command script add -f lldbinit.stepo stepo", res)
handleCmd("command script add -f lldbinit.handleHookStop handleHookStop", res)
handleCmd("command script add -f lldbinit.dd dd", res)
handleCmd("command script add -f lldbinit.si si", res)
handleCmd("command script add -f lldbinit.c c", res)
handleCmd("command script add -f lldbinit.r r", res)
handleCmd("command script add -f lldbinit.r run", res)
handleCmd("command script add -f lldbinit.handleHookStop ctx", res)
handleCmd("command script add -f lldbinit.handleHookStop context", res)
handleCmd("command script add -f lldbinit.DumpInstructions u", res)
handleCmd("command script add -f lldbinit.LoadBreakPoints lb", res)
handleCmd("command script add -f lldbinit.dq dq", res)
handleCmd("command script add -f lldbinit.ddword ddword", res)
handleCmd("command script add -f lldbinit.dw dw", res)
handleCmd("command script add -f lldbinit.IphoneConnect iphone", res)
'''
target stop-hook can be added only when target is loaded, thus I create
thread to execute this command until it returns success... dunno if
this is ok, or thread safe, but I hate to add extra command "init" or
such to install this hook...
'''
thread.start_new_thread(wait_for_hook_stop, ())
handleCmd("settings set prompt \"\033[31m(lldb) \033[0m\"", res)
handleCmd("settings set stop-disassembly-count 0", res)
return
def get_arch():
return lldb.debugger.GetSelectedTarget().triple.split('-')[0]
def get_frame():
target = lldb.debugger.GetSelectedTarget()
return target.process.selected_thread.GetSelectedFrame()
def is_i386():
arch = get_arch()
if arch[0:1] == "i":
dprint("i386 platform")
return True
return False
def is_x64():
arch = get_arch()
if arch == "x86_64":
dprint("x86_64 platform")
return True
return False
def is_arm():
arch = get_arch()
if "arm" in arch:
dprint("ARM platform")
return True
return False
def color_reset():
output("\033[0m")
def color_bold():
output("\033[1m")
def color_underline():
output("\033[4m")
def color(x):
out_col = ""
if x == BLACK:
out_col = "\033[30m"
elif x == RED:
out_col = "\033[31m"
elif x == GREEN:
out_col = "\033[32m"
elif x == YELLOW:
out_col = "\033[33m"
elif x == BLUE:
out_col = "\033[34m"
elif x == MAGENTA:
out_col = "\033[35m"
elif x == CYAN:
out_col = "\033[36m"
elif x == WHITE:
out_col = "\033[37m"
output(out_col)
def output(x):
global GlobalListOutput
GlobalListOutput.append(x)
def get_register(reg_name):
regs = get_GPRs()
for reg in regs:
if reg_name == reg.GetName():
return reg.GetValue()
return 0
def get_registers(kind):
"""Returns the registers given the frame and the kind of registers desired.
Returns None if there's no such kind.
"""
registerSet = get_frame().GetRegisters() # Return type of SBValueList.
for value in registerSet:
if kind.lower() in value.GetName().lower():
return value
return None
def dump_eflags(eflags):
if (eflags >> 0xB) & 1:
output("O ")
else:
output("o ")
if (eflags >> 0xA) & 1:
output("D ")
else:
output("d ")
if (eflags >> 9) & 1:
output("I ")
else:
output("i ")
if (eflags >> 8) & 1:
output("T ")
else:
output("t ")
if (eflags >> 7) & 1:
output("S ")
else:
output("s ")
if (eflags >> 6) & 1:
output("Z ")
else:
output("z ")
if (eflags >> 4) & 1:
output("A ")
else:
output("a ")
if (eflags >> 2) & 1:
output("P ")
else:
output("p ")
if eflags & 1:
output("C")
else:
output("c")
def reg64():
global old_cs
global old_ds
global old_fs
global old_gs
global old_ss
global old_es
global old_rax
global old_rcx
global old_rdx
global old_rbx
global old_rsp
global old_rbp
global old_rsi
global old_rdi
global old_r8
global old_r9
global old_r10
global old_r11
global old_r12
global old_r13
global old_r14
global old_r15
global old_rflags
global old_rip
rax = int(get_register("rax"), 16)
rcx = int(get_register("rcx"), 16)
rdx = int(get_register("rdx"), 16)
rbx = int(get_register("rbx"), 16)
rsp = int(get_register("rsp"), 16)
rbp = int(get_register("rbp"), 16)
rsi = int(get_register("rsi"), 16)
rdi = int(get_register("rdi"), 16)
r8 = int(get_register("r8"), 16)
r9 = int(get_register("r9"), 16)
r10 = int(get_register("r10"), 16)
r11 = int(get_register("r11"), 16)
r12 = int(get_register("r12"), 16)
r13 = int(get_register("r13"), 16)
r14 = int(get_register("r14"), 16)
r15 = int(get_register("r15"), 16)
rip = int(get_register("rip"), 16)
rflags = int(get_register("rflags"), 16)
cs = int(get_register("cs"), 16)
gs = int(get_register("gs"), 16)
fs = int(get_register("fs"), 16)
color(COLOR_REGNAME)
output(" RAX: ")
if rax == old_rax:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rax))
old_rax = rax
color(COLOR_REGNAME)
output(" RBX: ")
if rbx == old_rbx:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rbx))
old_rbx = rbx
color(COLOR_REGNAME)
output(" RBP: ")
if rbp == old_rbp:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rbp))
old_rbp = rbp
color(COLOR_REGNAME)
output(" RSP: ")
if rsp == old_rsp:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rsp))
old_rsp = rsp
output(" ")
color_bold()
color_underline()
color(COLOR_CPUFLAGS)
dump_eflags(rflags)
color_reset()
output("\n")
color(COLOR_REGNAME)
output(" RDI: ")
if rdi == old_rdi:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rdi))
old_rdi = rdi
color(COLOR_REGNAME)
output(" RSI: ")
if rsi == old_rsi:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rsi))
old_rsi = rsi
color(COLOR_REGNAME)
output(" RDX: ")
if rdx == old_rdx:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rsp))
old_rdx = rdx
color(COLOR_REGNAME)
output(" RCX: ")
if rcx == old_rcx:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rcx))
old_rcx = rcx
color(COLOR_REGNAME)
output(" RIP: ")
if rip == old_rip:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (rip))
old_rip = rip
output("\n")
color(COLOR_REGNAME)
output(" R8: ")
if r8 == old_r8:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r8))
old_r8 = r8
color(COLOR_REGNAME)
output(" R9: ")
if r9 == old_r9:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r9))
old_r9 = r9
color(COLOR_REGNAME)
output(" R10: ")
if r10 == old_r10:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r10))
old_r10 = r10
color(COLOR_REGNAME)
output(" R11: ")
if r11 == old_r11:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r11))
old_r11 = r11
color(COLOR_REGNAME)
output(" R12: ")
if r12 == old_r12:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r12))
old_r12 = r12
output("\n")
color(COLOR_REGNAME)
output(" R13: ")
if r13 == old_r13:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r13))
old_r13 = r13
color(COLOR_REGNAME)
output(" R14: ")
if r14 == old_r14:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r14))
old_r14 = r14
color(COLOR_REGNAME)
output(" R15: ")
if r15 == old_r15:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.016lX" % (r15))
old_r15 = r15
output("\n")
color(COLOR_REGNAME)
output(" CS: ")
if cs == old_cs:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (cs))
old_cs = cs
color(COLOR_REGNAME)
output(" FS: ")
if fs == old_fs:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (fs))
old_fs = fs
color(COLOR_REGNAME)
output(" GS: ")
if gs == old_gs:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (gs))
old_gs = gs
output("\n")
def reg32():
global old_eax
global old_ecx
global old_edx
global old_ebx
global old_esp
global old_ebp
global old_esi
global old_edi
global old_eflags
global old_cs
global old_ds
global old_fs
global old_gs
global old_ss
global old_es
global old_eip
color(COLOR_REGNAME)
output(" EAX: ")
eax = int(get_register("eax"), 16)
if eax == old_eax:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (eax))
old_eax = eax
color(COLOR_REGNAME)
output(" EBX: ")
ebx = int(get_register("ebx"), 16)
if ebx == old_ebx:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (ebx))
old_ebx = ebx
color(COLOR_REGNAME)
output(" ECX: ")
ecx = int(get_register("ecx"), 16)
if ecx == old_ecx:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (ecx))
old_ecx = ecx
color(COLOR_REGNAME)
output(" EDX: ")
edx = int(get_register("edx"), 16)
if edx == old_edx:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (edx))
old_edx = edx
output(" ")
eflags = int(get_register("eflags"), 16)
color_bold()
color_underline()
color(COLOR_CPUFLAGS)
dump_eflags(eflags)
color_reset()
output("\n")
color(COLOR_REGNAME)
output(" ESI: ")
esi = int(get_register("esi"), 16)
if esi == old_esi:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (esi))
old_esi = esi
color(COLOR_REGNAME)
output(" EDI: ")
edi = int(get_register("edi"), 16)
if edi == old_edi:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (edi))
old_edi = edi
color(COLOR_REGNAME)
output(" EBP: ")
ebp = int(get_register("ebp"), 16)
if ebp == old_ebp:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (ebp))
old_ebp = ebp
color(COLOR_REGNAME)
output(" ESP: ")
esp = int(get_register("esp"), 16)
if esp == old_esp:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (esp))
old_esp = esp
color(COLOR_REGNAME)
output(" EIP: ")
eip = int(get_register("eip"), 16)
if eip == old_eip:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (eip))
old_eip = eip
output("\n")
color(COLOR_REGNAME)
output(" CS: ")
cs = int(get_register("cs"), 16)
if cs == old_cs:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (cs))
old_cs = cs
color(COLOR_REGNAME)
output(" DS: ")
ds = int(get_register("ds"), 16)
if ds == old_ds:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (ds))
old_ds = ds
color(COLOR_REGNAME)
output(" ES: ")
es = int(get_register("es"), 16)
if es == old_es:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (es))
old_es = es
color(COLOR_REGNAME)
output(" FS: ")
fs = int(get_register("fs"), 16)
if fs == old_fs:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (fs))
old_fs = fs
color(COLOR_REGNAME)
output(" GS: ")
gs = int(get_register("gs"), 16)
if gs == old_gs:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (gs))
old_gs = gs
color(COLOR_REGNAME)
output(" SS: ")
ss = int(get_register("ss"), 16)
if ss == old_ss:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("%.04X" % (ss))
old_ss = ss
output("\n")
def dump_cpsr(cpsr):
if (cpsr >> 31) & 1:
output("N ")
else:
output("n ")
if (cpsr >> 30) & 1:
output("Z ")
else:
output("z ")
if (cpsr >> 29) & 1:
output("C ")
else:
output("c ")
if (cpsr >> 28) & 1:
output("V ")
else:
output("v ")
if (cpsr >> 27) & 1:
output("Q ")
else:
output("q ")
if (cpsr >> 24) & 1:
output("J ")
else:
output("j ")
if (cpsr >> 9) & 1:
output("E ")
else:
output("e ")
if (cpsr >> 8) & 1:
output("A ")
else:
output("a ")
if (cpsr >> 7) & 1:
output("I ")
else:
output("i ")
if (cpsr >> 6) & 1:
output("F ")
else:
output("f ")
if (cpsr >> 5) & 1:
output("T")
else:
output("t")
def regarm():
global old_arm_r0
global old_arm_r1
global old_arm_r2
global old_arm_r3
global old_arm_r4
global old_arm_r5
global old_arm_r6
global old_arm_r7
global old_arm_r8
global old_arm_r9
global old_arm_r10
global old_arm_r11
global old_arm_r12
global old_arm_sp
global old_arm_lr
global old_arm_pc
global old_arm_cpsr
color(COLOR_REGNAME)
output(" R0: ")
r0 = int(get_register("r0"), 16)
if r0 == old_arm_r0:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r0))
old_arm_r0 = r0
color(COLOR_REGNAME)
output(" R1: ")
r1 = int(get_register("r1"), 16)
if r1 == old_arm_r1:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r1))
old_arm_r1 = r1
color(COLOR_REGNAME)
output(" R2: ")
r2 = int(get_register("r2"), 16)
if r2 == old_arm_r2:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r2))
old_arm_r2 = r2
color(COLOR_REGNAME)
output(" R3: ")
r3 = int(get_register("r3"), 16)
if r3 == old_arm_r3:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r3))
old_arm_r3 = r3
output(" ")
color_bold()
color_underline()
color(COLOR_CPUFLAGS)
cpsr = int(get_register("cpsr"), 16)
dump_cpsr(cpsr)
color_reset()
output("\n")
color(COLOR_REGNAME)
output(" R4: ")
r4 = int(get_register("r4"), 16)
if r4 == old_arm_r4:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r4))
old_arm_r4 = r4
color(COLOR_REGNAME)
output(" R5: ")
r5 = int(get_register("r5"), 16)
if r5 == old_arm_r5:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r5))
old_arm_r5 = r5
color(COLOR_REGNAME)
output(" R6: ")
r6 = int(get_register("r6"), 16)
if r6 == old_arm_r6:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r6))
old_arm_r6 = r6
color(COLOR_REGNAME)
output(" R7: ")
r7 = int(get_register("r7"), 16)
if r7 == old_arm_r7:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r7))
old_arm_r7 = r7
output("\n")
color(COLOR_REGNAME)
output(" R8: ")
r8 = int(get_register("r8"), 16)
if r8 == old_arm_r8:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r8))
old_arm_r8 = r8
color(COLOR_REGNAME)
output(" R9: ")
r9 = int(get_register("r9"), 16)
if r9 == old_arm_r9:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r9))
old_arm_r9 = r9
color(COLOR_REGNAME)
output(" R10: ")
r10 = int(get_register("r10"), 16)
if r10 == old_arm_r10:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r10))
old_arm_r10 = r10
color(COLOR_REGNAME)
output(" R11: ")
r11 = int(get_register("r11"), 16)
if r11 == old_arm_r11:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r11))
old_arm_r11 = r11
output("\n")
color(COLOR_REGNAME)
output(" R12: ")
r12 = int(get_register("r12"), 16)
if r12 == old_arm_r12:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (r12))
old_arm_r12 = r12
color(COLOR_REGNAME)
output(" SP: ")
sp = int(get_register("sp"), 16)
if sp == old_arm_sp:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (sp))
old_arm_sp = sp
color(COLOR_REGNAME)
output(" LR: ")
lr = int(get_register("lr"), 16)
if lr == old_arm_lr:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (lr))
old_arm_lr = lr
color(COLOR_REGNAME)
output(" PC: ")
pc = int(get_register("pc"), 16)
if pc == old_arm_pc:
color(COLOR_REGVAL)
else:
color(COLOR_REGVAL_MODIFIED)
output("0x%.08X" % (pc))
old_arm_pc = pc
output("\n")