asm51

It is a simple two-pass assembler for 8051 family CPUs. Its features are:

• compatibility with most DOS assemblers,
• support for directives like EQU, ORG, DB, END, etc.
• Intel syntax,
• binary or Intel HEX output.

It was written as a student project.

Tested with

• GNU Make 4.4, gcc 13.1.1, GNU Bison 3.8.2, flex 2.6.4

Changes

• 0.7 (2023-11-30) - fixed compilation with recent toolchain
• 0.6 (2006-10-10) - fixed compilation with flex 2.5.33 (Adrian Czerniak)
• 0.5 (2004-06-16) - fixed DB with strings
• 0.4 (2004-01-20) - Intel-HEX checksum fixed
• 0.3 (2003-12-09) - added support for character constants and C-style hex and bin values (eg. 0xff, 0b11111111)
• 0.2 (2003-12-04) - fixed CJNE, redefinition of constants is allowed
• 0.1 (2003-11-02) - initial release

License

(C) Copyright 2003-2023 Wojtek Kaniewski [email protected]

Released under the terms of GNU GPL version 2 license