Epson QX-10 Emulator

Chuck Guzis cclist at
Sun Sep 30 15:51:03 CDT 2007

On 30 Sep 2007 at 18:47, Tony Duell wrote:

> Ah, I was momentarily forgetting Valdocs. My QX10 came with CP/M and 
> that's all I've ever run on it. I find it's a pretty nice CP/M box, 
> actually....

Having cut my teeth on CP/M 1.30, I'm surprised that it lasted as 
long as it did.  Consider that it couldn't organize large volumes 
well and couldn't even track the length of a file to anything closer 
than 128 bytes.  

It WAS fairly small, but even that went away with CP/M 3.0/CP/M Plus.

Something like the QX-10's Valdocs/TP/M interests me, particularly 
the Forth implementation and the supplemental facilities, such as the 

I'm writing an archiver to convert my QX-10 diskettes to the .D88 
format that the emulator needs.  While perusing information on the 
.D88 file format, I discovered an entire new world of Japanese NEC 
9801 enthusiasts, complete with emulators and an operating system 
called GR-DOS.  From what I can gather, the 9801 was very popular 
with Japanese gamers.

> Ah well... I'm a hardware guy to the core (literally :-)). Microcode is 
> OK, machine code is getting far too close to 'software' for my liking.

You must LOVE PPGAs then... :)


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