Development tools

68k programming

• [AS assembler]
• JAS 68k assembler (by Charles Doty) [JAS 68k assembler]
• Maccer preprocessor for JAS (by Michael Hope) [Maccer]
• SNASM68k assembler [SNASM68K 2.02]
• NeoDev C compiler and tools [NeoDev SDK]
• IRA 68k diasassembler (by Antiriad) [IRA 2.0]

Z80 programming

• WLA-DX cross assembler for multiple platforms, Z80 included. [WLA-DX 9.2 Win32 binaries]
• ZCC Z80 C compiler [ZCC 0.96]
• DASM Z80 disassembler (by Charles Doty) [DASM]
• Inkland DZ80 disassembler [DZ80 2.0]

Source editors

Context (with highlighter), PM...

Music

• MVSTracker FM music editor and player (by Ivan Mackintosh). [MVSTracker]
• [Goldwave sound editor]

Graphics

• YY-CHR multi-format tile editor, used in 4BPP SNES mode with NGGTS to make C and S ROMs. [YY-CHR 0.99]
• NeoGeo Graphics ToolSuite. [NGGTS]
• Sprite graphics converter by IQ. [MVS to CD sprite converter]