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A debugger is a computer program used to test and debug other programs (the "target" programs). Common features of debuggers include the ability to run or halt the target program using breakpoints , step through code line by line, and display or modify the contents of memory, CPU registers, and stack frames.
AQtime — profiler and memory/resource debugger for Windows; ARM Development Studio 5 (DS-5) CA/EZTEST — was a CICS interactive test/debug software package; CodeView — was a debugger for the DOS platform; dbx — a proprietary source-level debugger for Pascal/Fortran/C/C++ on UNIX platforms; DEBUG — the built-in debugger of DOS and ...
Anti-debugging is "the implementation of one or more techniques within computer code that hinders attempts at reverse engineering or debugging a target process". [23] It is actively used by recognized publishers in copy-protection schemas, but is also used by malware to complicate its detection and elimination. [ 24 ]
Many video gaming mod, cheat codes, such as level cheat code, invincibility, etc. were originally introduced as debug code to allow the programmers and/or testers to skip hindrances that would prevent them from rapidly getting to parts of the game that needed to be tested; and in these cases cheat modes are often referred to as debugging mode.
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Memory-mapped I/O is preferred in IA-32 and x86-64 based architectures because the instructions that perform port-based I/O are limited to one register: EAX, AX, and AL are the only registers that data can be moved into or out of, and either a byte-sized immediate value in the instruction or a value in register DX determines which port is the source or destination port of the transfer.
Algorithmic debugging (also called declarative debugging) is a debugging technique that compares the results of sub-computations with what the programmer intended. The technique constructs an internal representation of all computations and sub-computations performed during the execution of a buggy program and then asks the programmer about the correctness of such computations.
In computer programming, machine code is computer code consisting of machine language instructions, which are used to control a computer's central processing unit (CPU). For conventional binary computers, machine code is the binary representation of a computer program which is actually read and interpreted by the computer. A program in machine ...