MSX slot interfaced to PC

[JP Grobler]

HI   This topic was mentioned a few times with no serious input. I think it will be possible to connect a msx slot to a pc and emmulate a ROM cartdridge (etc.) on the pc. The msx will think it is talking to a normal rom.   2 Parallel port woul possibly be enough to do this. In a Bi directional port 17 inputs is possible x2 =34 input lines.   Buffering the adresbus will free 8 bits. I/O lines 8 I lines: 8 (buffered adress) + 12 O Lines: 3   TOTAL: 31 lines   I think it would be possible to emulate ram and other hardware as well. Most hardware is already emulated in emulators so to adapt is would not be such a big problem.   First up  think it would be best to try and emulate a 'unmapped' rom game to see if it can work. Then go on to emulate 'unmapped' ram and work on from there.   Like to see your comments   JP   I/O LINES NEEDED ON PC 1. 8 data lines: I/O � Databus 2. 8 /16: Input � Address bus (8 bit port buffered input) 3. 10/12: Input � /CS1 � /CS2 � /CS12 (Can be dropped by connecting this to both /CS1 and /CS2 ?) � /IORQ � /M1 � /MERQ � /RD � /RESET: � /RFSH (OPTIONAL ?) � /SLTSL � /CLOCK � /WR 4. 3: Out: � /BUSDIR � /INT � /WAIT