JAVASCRIPT AMSTRAD MACHINE SYSTEM INTERFACE
JAMSI
©2026 by Devil-System (Markus Hohmann)
Z80 CPUCPC + ZX50 HZ PAL
CARTRIDGE
Media
©2026 by Devil-System (Markus Hohmann)
CPCDOS and M4 both use upper ROM slot 6 and the same virtual HDD, so only one of them can be active at a time.
Load your own OS (lower ROM 0) and expansion ROMs (upper ROM 0–15). Classic CPC: BASIC lives in upper ROM 0, AMSDOS in upper ROM 7.
CPCDOS.ROM is loaded into upper ROM slot 6 while enabled. The drive selector shows the number and size available to the account. File and folder names are stored in upper case. Use |DOS:LOAD"NAME" and |CD,"PATH" inside the CPC.
PATH: /
Drop files here to add them to the CPCDOS drive.
My Machine mode is active: settings, custom ROMs and loaded media (DSK / EDSK / CDT / TZX / TAP) are stored locally in this browser — localStorage + IndexedDB, no cookies, nothing is sent to any server. They are restored on your next visit with mymachine=true.
No media saved yet.
Erases all My Machine data in this browser (settings, custom ROMs and saved media).
Server-side machines are stored in your account (up to 10) and can be loaded anywhere — no mymachine=true needed. Manage them in My Account.
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