I finally got one to display something semi-intelligible on the screen. the MEMORY SIZE prompt comes up as LDLNRX RHZD and there is some random graphics on the...
Very nice! Compare the bits that make up the ASCII values in "MEMORY SIZE" vs. "LDLNRX RHZD" and see which bit is dropping out or stuck. That should give you...
... bit 0 is obviously allways seen as 0... push enter a few times then FORX=0TO255:POKE15360+X,X:NEXTX will display the whole table and will probaly start...
Good point David. It looks like bit 0 is bad since many characters are off by one. I would suspect bit 0 being bad somewhere in the video section. For example...
Oopps, I guess I meant to say that one of the input address lines could be bad on the character generator, not one of the output data lines. The characters do...
... To see if it is the character generator check the graphics, they don't come out of the character generator. for example push enter a few times then ...
Hey Guys, I swapped out a 2102 (Z48) with a pull from an extra board, I'm Now getting a solid Memory Size and Picture is in sync. It does seem like I'm getting...
Congrats! By replacing the cracked NAND chip, you fixed the video sync and it looks like your Model 1 is almost working. I had the same problem (in 1981) that...
G'day all, I am starting the preliminary design work of my fpga implementation of a model 1. I want it to have a hard disk, but I have never owned a real...
Most if not all of the emulators do emulate hard disks. You might want to play around with them a little bit to get an idea of how it all works. I have a set...
Hi, Just a note to let people know that I've shifted the System 80/Video Genie website to a new domain. I'm aware one or two of you may have links to it from...
... It's taking a lot longer than I originally planned, mostly because I have decided that if I'm going to all the trouble and expense of designing and making...
... I'd be very interested in your progress. Have you seen my project page? <http://pacedev.net/> <http://pacedev.net/forums/showthread.php?t=11> Regards, --...
Hi, There was a BASIC compiler for Level II BASIC published in 80 Micro. I believe it had several revisions published over the years. I was interested in...
There was the Tiny Basic Compiler. It was a very limited subset of Basic. Or there was that English one that came in three versions, Accel 1/2/3 Neil On Wed,...
I have it, somewhere... I typed it all in and you added your code to the end. It worked well, and FAST. It would be easier if I dug up the magazine and...
I'm pretty sure it was Accel. I seem to remember it starting out in BASIC for the original version and the last version had some machine code. I'm more...
Nope... I was wrong. It was the January 85 issue. I bought the magazine just for that article. I'm guessing the magazine got thrown out long ago. Any of...
I took a quick look at the article. The compiler doesn't support multiplication and division of integers among other things but it should give me a start. ......
Hi, The other day i bought a mini laptop (Asus EEE) with Linux (Xandros) installed (after several earlier attempts trying to get a better feeling with a Linux...
Mark, Does your TRS-80 implementation incorporate real floppy drives and if so are you using genuine TRS-80 drives or IBM PC drives? -- _/_/_/ _/ _/...
Like the majority of Linux/Unix applications, Xtrs ships with a "man page" manual system. Try opening a console window and typing "man xtrs" and see what you...
have you tried running: man xtrs to pull up the man pages, if there are any for that emulator? I'm a relative newb to linux, so that may actually not be...
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