To the address pointed by the last 2 bytes of the file. In case of nchess.asm there is a "defw DRIVER", so the program starts on DRIVER label, and in case of unkatris.asm the start label is "inic".marste wrote: But where the program starts without RAND USR?
Search found 23 matches
- Wed Sep 10, 2014 4:21 am
- Forum: Development
- Topic: Unkatris, another tetris clone
- Replies: 21
- Views: 45892
Re: Unkatris, another tetris clone
- Mon Sep 08, 2014 8:02 pm
- Forum: Development
- Topic: Unkatris, another tetris clone
- Replies: 21
- Views: 45892
Re: Unkatris, another tetris clone
Thank you for the feedback. It's not very original and there was before another tetris clone for 1k zx81, but I did it as a challenge.
- Mon Sep 08, 2014 7:53 pm
- Forum: Development
- Topic: Unkatris, another tetris clone
- Replies: 21
- Views: 45892
Re: Unkatris, another tetris clone
If you want to learn about this method, I recommend you the example in this folder: http://sourceforge.net/p/emuscriptoria/code/HEAD/tree/chess/ It's the 1K Chess. chess.asm is the original game (binary identical), with only 2 bytes of free RAM. I have used my method in nchess.asm, with another opti...
- Mon Sep 08, 2014 7:49 pm
- Forum: Development
- Topic: Unkatris, another tetris clone
- Replies: 21
- Views: 45892
Re: Unkatris, another tetris clone
Yes, it would work in a real ZX81. Not tested because I don't have this machine but due to emulator accuracy (EightyOne) I am 99% sure. Just load the .tzx or .wav from audio out in your laptop/phone to the EAR connector in the ZX81. The game has 2 blocks, the first block only loads from 4000h to 400...
- Mon Sep 08, 2014 7:38 pm
- Forum: GAMES
- Topic: PANDEMIC - 4 level demo
- Replies: 14
- Views: 5646
Re: PANDEMIC - 4 level demo
Good and addictive game. Thank you.
- Mon Sep 01, 2014 10:37 pm
- Forum: Development
- Topic: Waiting some time!
- Replies: 21
- Views: 8543
Re: Waiting some time!
Another 8 bytes solution if you don't want multiple of frames:
Aprox 7*N^2, with a limit of about 450.000 cycles
Code: Select all
ld b, N
outer push bc
inner djnz inner
pop bc
djnz outer
- Thu Aug 28, 2014 6:14 pm
- Forum: Development
- Topic: Waiting some time!
- Replies: 21
- Views: 8543
Re: Waiting some time!
Based on DrBeep solution
Code: Select all
ld hl, frames
ld a, (hl)
sub n
repeat cp (hl)
jr nz, repeat
- Sat Aug 16, 2014 10:28 pm
- Forum: Development
- Topic: ZMakeBas, basic tokenizer
- Replies: 5
- Views: 2909
Re: ZMakeBas, basic tokenizer
Hi, exe ok on a W7 32b. (W32)... But, try to create a "T81" zx81's file, instead of a "TAP" Spectrum tape file ! :oops: I'm sorry, snapshots are not supported. Only binary and tape outputs are allowed. Default is tape format (ZX Spectrum), put -r for binary output, and/or -p for ZX81 format (.p fil...
- Sat Aug 16, 2014 10:38 am
- Forum: Development
- Topic: ZMakeBas, basic tokenizer
- Replies: 5
- Views: 2909
Re: ZMakeBas, basic tokenizer
Hi iturbez If you observe into the zip there is a file called ZMakeBas.exe. My intention was to include the executable with other files (some .bas and one .bat) to test the tool. But I recommend the second link with the C source and compile yourself, it works on all platforms and you can trace the c...
- Fri Aug 15, 2014 6:19 pm
- Forum: GAMES
- Topic: New ZX81 Games
- Replies: 363
- Views: 682736
Re: New ZX81 Games
Name of Software: UnkaTris Author: Antonio Villena Release Date: 2014-08-15 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K Description: Tetris clone. Screenshots: unkatris2.png Download link (if available for download): unkatris.zip unkatris_2_p_files.zip Commercial / Public Domain / Freewar...