On Fri, Jun 06, 2008 at 06:24:47AM -0700, David Fox wrote: > On 6/5/08, Marc Shapiro <[EMAIL PROTECTED]> wrote: > > > > It almost makes me yearn for the days of my first computer... a TRS-80 > > Model III that came with 16KB RAM and 16KB ROM which I upgraded to the max > > of 48KB RAM and 16KB ROM. Then I remember that that machine, at twice the > > Mine was (if you don't count the TI-59 :) a TRS80 Model 1 w/16K, > stringy floppy tape. > > I knew this hardware guy who helped later on stuff in a 64k RAM and we > could burn our own custom ROMs, and added a few extra touches, like a > speedup switch so it could run twice as fast. >
Yeah, I had a Timex/Sinclair 1000 Z-80 with 64 K ram (if I attached the add-on ram block). It came with basic built-in (keywords on the membrane keyboard) but I also learned machine code on it. There was no assembler program so I did it all on paper and entered it directly into a memory block and then somehow (I forget) got that to run. Z-80 was a nice little CPU and easy to program. Doug. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
