v1.0

Read the full update report on my blog!

Note

clownassembler_asm68k.exe is the one that mimics asm68k's interface; clownassembler.exe has a custom, simpler interface that is incompatible.

Can assemble...

• The Sonic 1 Git disassembly
• SuperEgg's Sonic 2 Nick Arcade disassembly
• The Sonic 2 August 21st prototype disassembly
• The Sonic Spinball disassembly
• The Mean Bean Machine disassembly
• Vladikcomper's debugger and error handler (ASM68K version)
• Aurora Fields' Z80 macros

Added features

• Eliminated 1024-character line length limit.
• Comments in listing files.
• EQU/SET/RS values in listing files.
• EQUS SUBSTR, and INSTR (string-processing).
• Expansion of all macros in listing files (/m command line option).
• Forward-references to variables.
• PUSHO and POPO (push and pop options state).
• OPT (set options).
• Escaped quotes within strings.
• PUSHP and POPP (push and pop string constants).
• Custom option wp+ (enables pedantic warnings).
• SHIFT (removes a macro argument).
• MEXIT (prematurely terminates macro expansion).
• LOCAL (limits a symbol's visibility to the surrounding macro).
• Alternative local label signifiers ('l+', 'l-', etc. options).

Fixes

• Listing files not showing include directives.
• Trailing white-space being included in macro arguments.
• Nested REPT directives still not working.
• Nested WHILE directives not working.
• Macros modifying the input of REPT directives rather than their output.
• Greatly improved the accuracy of inserting arguments into macro expansions.
• NARG being a preprocessor constant instead of an assembler variable.
• NARG never being 0.
• Code overwritten using ORG being reverted if the overwritten code contained a forward-reference.
• 'and.w #1,sr', or.b #1,ccr, and similar instructions failing to assemble.