Hi
I want to make a 'driver' for emulating disk-images from a PC to a MSX. The
idea is to connect a MSX to a PC and then emulate a disk from data that is
stored on the PC. Now, I want to know if I can get away with just writing
new routines for PHYDIO etc. (i.e. changing the JP's in the diskrom at
4010h, 4013h etc. to my routines which do the communication with the PC). I
only want to change the physical I/O part, everything else should then still
work. Is this true, or is the code in the diskrom jumping around making this
impossible ? I want to integrate this diskrom in a cartridge that holds the
interface. This way I can use it on my diskless MSX1 as well. I don't know
what kind of interface I'm going to use, but I'm thinking of a simple
parallel port interface (should be fast enough). I might even use an ARCnet
interface because they are easy to program (I did this on the PC) and they
are easily and cheaply rippable from old PC interfaces and has its own FIFO,
reducing CPU load.
Any ideas ?
Greetings
Patrick
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