For a complete table of contents of all the lessons please click below as it will give you a brief of each lesson in addition to the topics it will cover. https://github.com/mytechnotalent/Reverse-Engineering-Tutorial
At the core of the microprocessor are a series of binary numbers which are either +5V (on or 1) or 0V (off or 0). Each 0 or 1 represents a bit of information within the microprocessor. A combination of 8 bits results in a single byte.
MPlab is definately free, you'll want to download it off the microchip site- you'll find the link on the right of some of their programming device product pages. Once you have the software, open your.asm and run quickbuild, followed by an export. This puts it into a.hex file you can program in with your favorite programming. STEP 1: Download the.deb Cydia hack file from the link above. STEP 2: Copy the file over to your iDevice using any of the file managers mentioned above or skip this step if you're downloading from your iDevice. STEP 3: Using Filza or iFile, browse to where you saved the downloaded.deb file and tap on it. Online Assembler and Disassembler. Online wrappers around the Keystone and Capstone projects. ARM ARM (thumb) AArch64 Mips (32) Mips (64) PowerPC (32) PowerPC (64) Sparc x86 (16) x86 (32) x86 (64) Little Endian Big Endian. Addresses Bytescodes Instructions. Here's what the converter can do and some of its features. Web-based which means it supports all Operating Systems. Supports x32 (ARMv7), x64 (ARM64). X32 Converter: ARM GDB/LLDB - ARM HEX - Thumb GDB/LLDB - Thumb HEX - Thumb-2/v8 GDB/LLDB - Thumb-2/v8 HEX x64 Converter: ARM64 GDB/LLDB - ARM64 HEX 3. Can convert multiple. ARM lab programs 1. 1 write an ALP for addition two 64 bit numbers. AREA ADDTIN,CODE ENTRY ldr r0,=value1 ldr r1,r0 ldr r2,r0,#4 ldr r0,=value2 ldr r3,r0 ldr r4,r0,#4 adds r6,r2,r4 adc r5,r1,r3 ldr r0,=result str r5,r0 str r6,r0,#4 swi &11 value1 dcd &BBBBBBBB,&AAAAAAAA value2 dcd &CCCCCCCC,&FFFFFFFF result dcd &0.
Before we dive into binary, lets examine the familiar decimal. If we take the number 2017, we would understand this to be two thousand and seventeen.
Let’s take a look at the binary system and the basics of how it operates.
If we were to convert a binary number into decimal, we would very simply do the following. Lets take a binary number of 0101 1101 and as you can see it is 93 decimal.
Adding the values in the value column gives us 0 + 64 + 0 + 16 + 8 + 4 + 0 + 1 = 93 decimal.
If we were to convert a decimal number into binary, we would check to see if a subtraction is possible relative to the highest order bit and if so, a 1 would be placed into the binary column to which the remainder would be carried into the next row. Let’s consider the example of the decimal value of 120 which is 0111 1000 binary.
1)Can 128 fit inside of 120: No, therefore 0.
2)Can 64 fit inside of 120: Yes, therefore 1, then 120 – 64 = 56.
3)Can 32 fit inside of 56: Yes, therefore 1, then 56 – 32 = 24.
4)Can 16 fit inside of 24: Yes, therefore 1, then 24 – 16 = 8.
5)Can 8 fit inside of 8: Yes, therefore 1, then 8 – 8 = 0.
6)Can 4 fit inside of 0: No, therefore 0.
7)Can 2 fit inside of 0: No, therefore 0.
8)Can 1 fit inside of 0: No, therefore 0.
When we want to convert binary to hex we simply work with the following table.
Lets convert a binary number such as 0101 1111 to hex. To do this we very simply look at the table and compare each nibble which is a combination of 4 bits. Keep in mind, 8 bits is equal to a byte and 2 nibbles are equal to a byte.
Therefore 0101 1111 binary = 0x5f hex. The 0x notation denotes hex.
To go from hex to binary it’s very simple as you have to simply do the opposite such as:
It is important to understand that each hex digit is a nibble in length therefore two hex digits are a byte in length.
To convert from hex to decimal we do the following:
Therefore we can see that 80 + 15 = 95 which is 0x5f hex.
Finally to convert from decimal to hex. Lets take the number 850 decimal which is 352 hex.
We put the numbers together from bottom to the top and we get 352 hex.
“Why the hell would I waste my time learning all this crap when the computer does all this for me!”
If you happen to know any reverse engineers please if you would take a moment and ask them the above question.
The reality is, if you do NOT have a very firm understanding of how all of the above works, you will NEVER get a grasp on how the ARM processor registers hold and manipulate data. You will NEVER get a grasp on how the ARM processor deals with a binary overflow and it’s effect on how carry operations work nor will you understand how compare operations work or even the most basic operations of the most simple assembly code.
I am not suggesting you memorize the above, nor am I suggesting that you do a thousand examples of each. All I ask is that you take the time to really understand that literally everything and I mean everything goes down to binary bits in the processor.
Whether you are creating, debugging or hacking an Assembly, Python, Java, C, C++, R, JavaScript, or any other new language application that hits the street, ultimately everything MUST go down to binary 0 and 1 to which represent a +5V or 0V.
We as humans operate on the base 10 decimal system. The processor works on a base 16 (hex) system. The registers we are dealing with in conjunction with Linux are addressed in 32-bit sizes. When we begin discussion of the processor registers, we will learn that each are 32-bits wide (technically the BCM2837 are 64-bit wide however our version of Linux that we are working with is 32-bit therefore we only address 32-bits of each register).
Next week we will dive into binary addition! Stay tuned!
Note: all the softwares had been protected by password, after download the code, please send us a email, Mikatech will send you the password.
- This is a BIN / HEX format convert tool for windows.
Not all the codes can be converted 100%, you can download a Xeltek programer tool, load your BIN (or HEX) program without connecting the programmer, then save as HEX (or BIN) program.
BinToHex.rar
- The PIC disassembler is a Windows based software to control a development programmer for PIC microcontrollers. To operate this software, a basic knowledge about electronics and Windows is necessary.
Programs : 12Cxx, 16Cxxx, 16Fxx, 16F87x, 18Fxxx, 16F7x, 24Cxx, 93Cxx, 90Sxxx, 59Cxx, 89Cx051, 89S53, 250x0, PIC, AVR , 80C51 etc.
PIC_prog.rar
As the name describes, it is a windows based disassembler for MCS-51 core MCU codes, Atmel, Intel, SyncMos, Nuvoton/Winbond and NXP MCS-51 core MCU codes can be disassembled with nice outcome.
MCS-51_core_MCU.rar
- AVR Studio is developed by Atmel Corp, it is used for Atmel AVR mcu programming and debugging, it also can be used for disassembling, since it is a Atmel product, the disassembled code can not be exported, it can be use used to complement other disassembler to make more accurate disassembling results.
The Disassembly window is only available when debugging. When any supported high level language is used, the source window is automatically displayed and the disassembly window is OFF. Enable it by choosing Debug→Windows→Disassembly or Ctrl+Alt+D during a debugging session.
The disassembly window shows your program code disassembled. Program execution and AVR instructions can be followed in this view. By right clicking inside the Disassembly window you will be able to set breakpoints, run to the position of the cursor or go to the source code. You cannot modify the source code from the Disassembly window.
Higher edition can be found on atmel website
- AVRstudio.rar
Arm Asm To Hex Converter Software Online
Arm Asm To Hex Converter Software Mac
- Developed by MDT company.
This is infact a MDT OTP writer, import your code, make the right config, click View >> disassemble to see the disassembly.
MDTWriter.rar
- OTP and BIN format support
Support symbol configuration, use default Symbol.ini or your diy symbols.
Holtek_DeASM.rar
Arm Asm To Hex Converter Software
In 9.0B version :
W32Dasm9b.rar
- Doesn't hang anymore when we open packed appz.
- Doesn't need anymore to change PE header to E0000020 in order to be able to be disassembled.
- It now can show All string_ref from VB, VC, and Delphi appz (Best feature).
The bad thing it's only available in Chinesse language.
Translated all menus language to English!!!!
(using Resource tuner, crack provided by UCEC & UCDV. ).