Spectrum Computing

ripped game routines:
http://g0blinish.ucoz.ru/forblog2/zxgbeeper.zip

for educational only.

azesmbog wrote: ↑Thu Mar 09, 2023 10:37 am Can you make me a parser for XPM and back to numbers?
I will explain what is needed at the entrance and out, even with examples.

Later. Busy on Yandex RetroGame Battle which starts April, 24.

I extracted files from floppy images and put to folder - installer works.
In some cases read about ctrl+F4(swapping floppies)

found distro. Just copy 4 files to folder what mounted as C:(D:\MSDOS), run INSTALL.EXE

where is program?

looks MOUNT A: is incorrect, it works with mounting images:
https://www.dosbox.com/wiki/IMGMOUNT

now Graphics Gale is freeware. I would create a 4bit image, save and use mtpaint to export to xpm for parser

https://i.postimg.cc/v1yDnhkb/chemichaos.png http://g0blinish.ucoz.ru/zxg/chemichaos.zip This is a remake of an old game, the goal is to sort the colored balls into flasks Controls: O-move left P-move right Enter-Select R-restart game S-skip game thanks to the participants of the Virtual TR-DOS TG ...

Jbizzel wrote: ↑Mon Dec 26, 2022 9:18 am https://zxart.ee/eng/software/demoscene ... -ula-plus/

Here's a video of your program. Looks cool, I couldn't find a video where there was a ULA+ pallette applied.

zxart is a garbage dump where everything is collected indiscriminately. Correct video on another page

- Do coders use the TR-DOS routines directly from ROM, or do they just copy those routines into their code, or do they write their own routines? What do these routines look like? Is there any example code? only in 90x - turbo loader and floppy change check routine. Qaulity of emulation makes wishes...

after two years of 6502 programming experience, learning was easy. Programming experience came later

speed vs memory:
build LUT(8bit):

device zxspectrum128 ORG #6000 begin ;fix wrong .SNA LD HL ,$5CB6 LD ($5C4F),HL LD DE ,$15AF LD BC ,$0015 EX DE ,HL LDIR EX DE ,HL DEC HL LD ($5C57),HL INC HL LD ($5C53),HL LD ($5C4B),HL LD (HL) ,$80 INC HL LD ($5C59),HL;E-LINE ;2 ld hl,$15C6 ld de,$5C10 ld bc,$0E ldir ;--------- ld a,2 call $1601 ...

http://g0blinish.ucoz.ru/pb2/09a.zip

I'm using another tool

bas2tap+bin2tap is good for creating tape image.

You can experiment de infinity - the intros from vtrdos is an example of this

I was looking through the sources on an old disk image and I found this procedure ld hl,$3D00 ld de,$4000 flp push de ld b,8 fl2 ld a,(hl) and $F0 rra ld c,a ld a,(hl) and $0F add a,a or c ld (de),a inc hl inc d djnz fl2 pop de inc e jp p,flp ret https://i.postimg.cc/RqBtYJdv/fnt.gif Is it worth dev...

would be great if tool support .wav's

ketmar wrote: ↑Fri Aug 12, 2022 9:05 am can't you simply read what i wrote, please?

bet your question is rithorical

I'd put breakpoint at $34B3 - BC pops $8000. Maybe stack crashed?