The 8051 Machine

The 8051 Machine is a freeware simulator for microcontrollers of the 8051/8052 standard. The current version is a beta release. Please contact me (see readme.txt) in case you find bugs.

Features

Full support of 8051/8052 standard
Both bin- and hex-files are supported
Breakpoints and single step operation for easy debugging
All registers, ports, internal and external RAM can be modified manually
Serial I/O terminal for complete control of serial traffic and manual data input
Disassembly export
Additional simulation of 7-segment-LEDs and a keypad

Download

Beta 3 Version 1.0 (365 KB) - 10/05/2008

Location 1
Location 2 (use profvargas as password)

Examples

The examples are all made for the standard configuration.
led.hex (optional LED)- If you press a key on the 4x2 keypad a counter will be increased and displayed on the 7-segment-LEDs.
serial.hex (optional Serial)- Enter data through the serial i/o terminal and see it displayed on the 7-segment-LEDs.

Screenshot

Ideas for future versions

Max. stack depth analysis
Data in-/output between files and ports
"Real" serial communication