Note

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

Added Features

• The '\@', '\#', and '\$' macro parameters.
• The OBJ and OBJEND directives.
• Passing RSRESET a parameter.
• The ORG directive.
• The FAIL directive.
• The DEF directive.
• The '/e' command line parameter, allowing constants to be defined.
• The 'label.w' and 'label.l' absolute address syntax.
• Misused instructions are automatically corrected to the appropriate instruction, instead of producing an error.
• The '/v' command line parameter, allowing local labels to be included in the symbol file.
• The 'w+' and 'w-' options, allowing warnings to be enable and disabled.

Fixes

• Made RS, RSSET, and RSRESET behave accurately to asm68k.
• Fixed using constants for INCBIN parameters.
• Fixed asm68k-style frontend ignoring all options after the first one.
• Renamed '__RS' to '__rs' to match asm68k.
• Fixed broken dictionary logic which was causing symbols to be missing from the symbol file (#10).
• Fixed true 'ELSEIF' directives causing later conditions to be processed incorrectly (#9).

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

Changes:

• Added support for nested macros.
• Fixed identifiers being mistaken for registers.
• Fixed uppercase Z80 hexadecimal numbers not being recognised
• Fixed integers that are too large being saturated instead of truncated.
• Fixed random crashes and nonsensical 'symbol undefined' errors (bugged dictionary).
• Added support for macros using their associated label using '\*' (this is needed by MainMemory's MapMacros).
• Fixed 'else' following 'elseif' being treated as always true.
• Fixed CNOP sometimes padding to the second-next boundary instead of the first-next.

Initial release. Can assemble the Sonic 1 Git disassembly and SuperEgg's Sonic 2 Nick Arcade disassembly.

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