Sinclair ZX80 / ZX81 / Z88 Forums

Just guessing, I will probably be wrong again ;) but 64 is 6 bits of binary. So it may be that the AI coding can address 64 squares, with 2 on each border not in the map, but for "overflow" when using its algorithms. That would mean that giving it a larger number breaks the AI code. If that's the ca...

Maybe your house sits on top of some rather radioactive granite bedrock

I'm quite surprised as well that it would just expire like that. There you go, it pays to buy the extended warranty after all

In my youth I copied most of the information from this book into a notepad in the reference section of the library (photocopies were 5p each, way too expensive!). Oh, the trials of the pre-internet era. Now, I'm just using the online PDF as a reference

I might have missed this in the thread, since you're using a modern TV (which may not be happy with the 81's poor quality output), have you put your oscilloscope on the actual signal to the TV to see what it's sending out? Also, switching to FAST mode to see if the screen blinks? It might just be th...

I just read the magazine. Impressive coding!

No, it should actually read

LD HL, ADR2

No, Jim Westwood stole them all!

Andy, thanks for the real world test. It seems I've got even less time than I thought

Andy, Pokemon-

I'm aiming for full screen display and, since this means rearranging the display file (moving which lines are long and short), it has to be done between fields, to prevent jittering and artifacts, etc.

I think he is

Daniel, what was the thing with Problem 1? Are you trying to remove the Save/Load menu entirely, or change the options, or something else? Does it not need those options?

This kind of result is why I love the internet