spectramfid
A ramdisk on a Spectranet device FID driver for CP/M Plus
CP/M Plus on ZX Spectrum +3 has ability to load device drivers from normal disk files (with .fid extension) on boot. A Spectranet device (apart from being networking interface) contains 128kB of extra RAM that can be accessed even with the Spectranet firmware disabled. This project proposes a FID driver that exposes Spectranet's extra memory as a ramdisk to the CP/M Plus system.
Changes in v1.1: keep floppy drive motor state (as set by CP/M) when paging in Spectranet RAM (to avoid motor jumps). Unfortunately, motor state is controlled by the same hardware register as +3's memory paging features!
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