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Assembles M6800 and 6801 assembly language source code. (With Forth,)

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A simple absolute mode assembler for 6800/6801. Handles the complete published set of opcodes/mnemonics. Mostly source-language compatible with the common assemblers in use circa 1985, but no macros.

Now uses standard LDAA syntax by default.

Produces basic S1/S9 object files and assembly listings.

(This is for the 8-bit 6800, not the 16/32 bit 68000/coldfire processors.)

asm68c Web Site


  • S1/S9 output
  • Switches between LD A and LDA A syntax
  • Included the fig-forth model for 6800, as a test file.


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Education, Developers, Engineering

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