Software archive / Retro computing
MSX, MSX-DOS, CP/M, classic C compilers, and other software experiments — old and new.
Last updated: 14 October 2026 · Older projects and links are retained as an archive.
A browser-based MSX-DOS 2 compatible environment written in JavaScript. It includes Intel 8080, Z80, and R800 instruction emulation, CP/M and MSX-DOS compatible system calls, a BDS C development environment, and a machine language monitor.
This is not a full MSX hardware emulator. Compatibility is experimental, and testing is still limited.
An open-source MSX2 mini game compiled with BDS C using asu ansi2kr (ANSI-to-K&R converter). The source also supports HI-TECH C for CP/M.
An open-source source-code converter for BDS C and MSX-C. Written in ANSI C. Platforms: Windows, CP/M, MSX-DOS, and MSX-DOS2.
An open-source Windows tool for Z80 assembly language linking, forked from ZCASM 1.5 for CP/M. Written in ANSI C.
A Windows utility for adding an MSX BLOAD header. Supports the asu-MSX Library for BDS C.
An Intel HEX to binary converter for Windows (maximum address: FFFFh).
A classic BDS C OTHELLO program, with versions for browser-based MSX emulation, PHP/CGI, and ANSI C.
Original BDS C OTHELLO on WebMSX Modified PHP/CGI version Original OTHELLO.C source PHP/CGI and terminal sources Modified ANSI C source
A Java disassembler for Jasmin, with support for discompilation protection.
Dictionary software and related online tools.