Sharp MZ

Hi,

Something that's always confused me. Is it better to do this:
Or:
Before drawing to the screen (for stable graphics) ?

Thanks! I forgot about that other thread! Looks like you have a decent method worked out. I might write a small program soon to try this out and try it on my various machines. I guess there are roughly three categories : - MZ-80 K series (MZ-80 K/K2E/C) - MZ-80 A series (MZ-1200) - MZ-700 series (MZ...

Hi, Is there a decent 'failsafe' method of finding out which MZ computer your program is running on? Only one I know of is perhaps checking the Monitor text (e.g. "SA-1510" etc). But that's not 100% accurate and if somebody has a modified MROM which doesn't even display this text then the ...

Could be a nice BASIC to play with

Well, here they are!

http://www.openspc2.org/BASIC/HTML/MZ-700[Hu-BASIC].html

Very useful as I don't think there is a European manual for HU-BASIC

Yes indeed. I'm sure the 'priming' is a big factor. I remember a VIC-20 demo where speech was created in the music but you wouldn't really be able to understand it unless you read the words which were also on the screen.

Yep, a waste of memory then which could be put to better use for more space for BASIC programs. Took me ages to work out that you could scroll the screen up with SHIFT - UP It surprised me though because I assumed the 700 didn't have the 2KB VRAM which the 80A has.

Is S-BASIC really wasting precious memory keeping a copy of the screen so that you can scroll a BASIC listing back into view again when it's disappeared off the top of the screen? (Like the MZ-80A, except the 80A actually has 2KB of VRAM especially for this purpose).

Thanks. That's what I thought anyway. I didn't want to find myself overwriting anything that the Monitor would use the stack for. But I guess if you are resetting the SP to $10F0 like this then the Monitor routines won't change it at all and it'll all just be used correctly. At least, when just call...