CP/M-386 – CP/M for 386 protected mode, derived from CP/M‑68K
CP/M-386 is a new, early-stage development project aiming to bring the CP/M operating system to 386 protected mode architectures. The project supports modern hardware interfaces and requires specific build environments like NetBSD, FreeBSD, or Linux.
Why it matters
It serves as a niche technical project for retro-computing enthusiasts and developers interested in legacy OS portability.
CP/M‑386 is CP/M for 386 protected mode, derived from CP/M‑68K .
CP/M‑386 is currently in the very early development stages.
Compatible with 386 (and later systems) with 2MB (or more) memory. Systems using either PC BIOS or UEFI (with CSM) are supported. VGA, 8042 PS/2, 8250/16450/16550 UART, CMOS RTC, and 8253/8254 PIT are supported. CP/M compatibility CP/M‑386 should be highly source‑compatible with other implementations:
The system currently reports BDOS 2.2 to applications.
The following dependencies are required to compile CP/M‑386 :
† Be sure to use cpmtools version 2.23 or later. Older versions may appear to work but have several known bugs.
Download the current CP/M‑386 build . View the GitLab CI/CD logs. Compilation Building CP/M‑386 is supported on current releases of NetBSD and FreeBSD ‡ , and most recent Linux distributions.
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