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Old 01 July 2009, 13:28   #4
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Join Date: Apr 2007
Location: completely gone
Posts: 1,596
All of the assemblers you mention will assemble any valid 68000 opcodes with no problems.

At a guess I'd say it's most likely that the "invalid instruction" stuff you're getting is from using directives that aren't supported by the assemblers you've tried.

For example, the assembler I use (Devpac) will accept dcb.x but doesn't like the equivalent that some other assemblers use of blk.x

You could try using an assembler that supports both forms - I think PhxAss does IIRC.

Are you formatting the lines correctly? What I mean is, they usually have the format:

label: opcode.extension register/value ;line comment

Failing that, post what you're having problems assembling and I'll try to help you.
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