Hello Kmura, (Hello Kelly)
Amazing !
Congrats.
BTW : Thanks a lot for giving to us the *.ASM source.
Dominique
Search found 32 matches
- Fri Mar 18, 2011 7:52 pm
- Forum: Software
- Topic: Toddy Forth - a new ZX81 forth implementation
- Replies: 44
- Views: 33279
- Sun May 23, 2010 10:05 pm
- Forum: Emulators
- Topic: sz81 - a portable z81 based emulator using SDL
- Replies: 19
- Views: 29119
Re: sz81 - a portable z81 based emulator using SDL
Hi all, A new release is ready... But, is it possible to launch the Tree4th.rom (Forth bios rom @0000) with sZ81? We had to force the vertical refresh to 60hz ? The video display seem to hang on the default setup! Xav. Hello Xav, You told me, yesterday, you were looking for the Doc of Tree4th . but...
- Thu Mar 04, 2010 11:27 am
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
IMHO it would be a better solution, to replace the PSEUDO-HRG routine, that you use, by a TRUE-HIRES routine (like WRX). That would then only require the easy "Wilf's 2 diodes" modification of the 16K ram pack and then your program would run on most other Zeddies. And you would also have the full g...
- Thu Mar 04, 2010 11:20 am
- Forum: Software
- Topic: Programs which use Hi-Res Graphics on the Sinclair ZX81
- Replies: 22
- Views: 164633
Re: Programs which use Hi-Res Graphics on the Sinclair ZX81
Wow. I wasn't aware of that site. And to my surprise Google translate does a great job translating it! http://translate.googleusercontent.com/translate_c?hl=en&ie=UTF-8&sl=fr&tl=en&u=http://kweeky.over-blog.com/article-21943289.html&prev=_t&rurl=translate.google.com&twu=1&usg=ALkJrhg4NdA806r3Iq2hwT...
- Wed Mar 03, 2010 10:22 pm
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
That is not so easy: see Wilf' Video tutorial http://www.user.dccnet.com/wrigter/index_files/ZX%20Video%20Tutorial.htm and a ZX81 schema. During lores or pseudo hires display the ULA overwrites during refresh (when the character generator is read) the Z80 address lines A0 to A8 (9 Bit: 0000..01FF, ...
- Wed Mar 03, 2010 10:20 pm
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
"EO behaves different and IMHO allows to use any RAM as UDG-RAM!!! That is the reason, why my INTERC-U game (using UDG at $2000) runs in EO, but not on most real Zeddies (except my web-server zeddy :D ) Did you test using a real Zeddy or EO????" Hi Dominique Tried loading zx4paint on a real zeddy w...
- Wed Mar 03, 2010 8:45 pm
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
My Hi-Res for ZX4PAINT is a mix of : - Pseudo HiRes OK. - HRG enabled ram. What is it used for? If it holds the new pattern for Pseudo Hires, it needs to be UDG-enabled ram (see below). and is very easy to understand. A) If we look at the routine and information given by Steven McDonald for his pse...
- Wed Mar 03, 2010 1:17 pm
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
By the way, is there any difference in the requirements for WRX (Wilf's) Hi-Res graphics and those from Matthias? In other words can a program written for WRX (such as ZX4PAINT) work with Matthias's drivers, or do you have to load the WRX drivers? Rich, honestly, I don't know. May be Siggi can answ...
- Tue Mar 02, 2010 7:30 pm
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
.... No, not solved: as written before: you know only, that there is ANY ram at 8K. But it can be "normal" ram, not usable for UDG or HRG. Yes solved ! I never asked it and don't need this 8k to be "usable for UDG or HRG". Since I said that i need address 8192 and the test says I have the address 8...
- Tue Mar 02, 2010 11:41 am
- Forum: Software
- Topic: Detecting HRG
- Replies: 20
- Views: 41513
Re: Detecting HRG
Siggi, Thanks, but the question asked by Rich, as I could understand, was from the PROGRAMMER point of view. The purpose, clearly, is to ask the programmer to include (if possible) a Low Res and a HGR version of the same programm. The programm detect if the required configuration is avaible and, acc...