Insight Debugger

Insight is real-mode debugger for DOS. It includes i80486 disassembler, i8086 assembler, trace-into and step-over functions, breakpoint handling, and a user-friendly interface.
There is also a separate (not related) program called the Insight cygnus debugger, which is a graphical front end to the gdb debugger.
System requirements
The Insight debugger is designed to be executed on any x86-family computer running a DOS compatible system (FreeDOS, DOSBox, MS-DOS, etc.). For full functionality it is desirable to have color monitor and EGA, VGA or SVGA video card. CGA could be used, but with possible graphical artifacts.
The debugger itself requires ≈ 30KB free disk space. When working, it occupies ≈ 45KB of RAM.
Short description of debugger's interface
Debugger's screen is divided into 5 windows:
* code/assembler window
* dump window
* registers window
* flags window
* stack window
Menu system
The debugger's menu system consists of the main menu and local menus of the windows. The main menu is hidden in inactive state, it can be activated with the keystroke of Alt or F10.
Keyboard usage
To perform majority of actions there are numerous keyboard shortcuts. The list of all combination and their purpose is documented inside help file.

Main Menu

See Also

Main Menu