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Drawing some spritesI figured I want to draw some sprites. My target was to do a 16x16 masked sprite. There's no clearing here, just drawing the sprites. My first ite…
... bytes due to 8 shifted copies.
[code]
/* shift 3 ... , 0b00000011, 0b11111100, 0b11111111, 0b00000000,
[/code]
Turned inner loop ... abovementioned optimizations mean that different shifted positions of the sprite will ... -
Extra screen in Jet Set Willy?I was online looking at screens from JSW when i came across a reference to an extra screen in JSW called April Showers that could be accessed by typi…
... Willy, because IIRC the longer code block when loading was about ... .[/quote]
The actual code is above $8000, with the ... complete rewrite, based on the code from the Amstrad CPC version ... when creating it, not just shifted original code around. :) -
Help, my Sprite Code wont workI have zipped it all up here: [url="http://www.peargames.co.uk/downloads/galagorf.zip"]http://www.peargames.co.uk/downloads/galagorf.zip[/url] If y…
... .tap, it works using pre shifted sprites
If you ... tried to implement Derek Smiths code to preshift all bytes before ... ball
In this code I draw to a backbuffer ... -
IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…
... ;569519]
I hope the code above is self explanatory but ... />
240 is getting the shifted values ? (much like I'd ... many variables, like looking at alphabet spaghetti to me) .. your looping ... -
IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…
... ?
240 is getting the shifted values ? (much like I'd ... many variables, like looking at alphabet spaghetti to me) .. your looping ... example will demonstrate how the code works. Simply copy and paste ... one page menu).
[Code]100 BORDER 0: PAPER 0 ... -
LINE-routine and other nice pieces of codeThe line-topic came in the end with a nice piece of fast coding. I think that there might be more of these routines out there (where-ever-u-r). Isn…
... to collect these pieces of code somewhere ??
I made ... emulator and to decide which code had to be emulated I ... /> MAIN...LD A,(DE) ; fetch code to be emulated (7)
Decision made from fetch code to start emulating : 36 T ... -
Assembler code from tutorial, problem!I was wondering if anyone could help me decipher this z80 assembler code? ORG 60000 LOAD 60000 EA60 21BCEA LD …
... me decipher this z80 assembler code?
ORG 60000
code, but I am having trouble ... -
machine code basicsWondered if anyone can help me out. I have been playing round with some disassemblers (Zeus). And Machine code loaders. All I want to do is print my…
... some disassemblers (Zeus). And Machine code loaders.
All I ... -
Best way to codeHi, I've been using Zeus Assembler to code MC programs so far. Nothing fancy just the odd scroll left or animation stuff. Wot I'd like to know is, …
... been using Zeus Assembler to code MC programs so far. Nothing ... , is a compiler better to code? If so which is the ... is the best one to code for a beginner? Can I ... -
Machine code loaderI was wondering how people wrote games. On the trail to this knowledge I discovered a machine code loader in basic, and also z80 assemblers. Which i…
... knowledge I discovered a machine code loader in basic, and also ... -
Loading with CODEHi all! I last played speccy games back in '91. that's when it died IMHO. It's good to see people are keeping the dream alive with emulators and util…
... be loaded with :
LOAD "" CODE
where was a number ... -
Saving machine code on EmulatorI have been dabbling with Chapter 26 of Stephen Vicker's "ZX Spectrum Manual". [url="http://www.madhippy.com/8-bit/sinclair/zxspecman/zxmanchap26.htm…
... explains how to input machine code and then finally tells you ... program that then loads the code to run. However, I cannot ... -
Machine CodeOk i had a spectrum when i was younger and only used it for playin games and typing simple BASIC programs - i mean really simple! Things like 10 Pri…
... to do something in machine code. I've seen a lot ... the loaders and seein the code was all blocked out or ... info, especially about the Machine code
Alex -
BASIC code challengeWrite a program in BASIC as short as possible that will continue after KEY-RELEASED. The program must be fully relocatable (so it must be programmed …
Speccy machine code info where is it?Recently I've been trying to learn Z80 and I've managed to make limited progress (some of my routines even compile now!) but I seem to be having trou…
... dark art of speccy machine code is obscure and mysterious, thats ...How do I enter the code ?OK, I have a problem with Pro Tennis Tour from Ubisoft. The original version of this program has a protection system where the program asks you to na…
... ENTER to skip the current code until the game asks you ...Z80 Machine CodeHello again chaps, Hope I'm in the right category for this question - I suppose it could be under 'Game Creation / Programming'. hehe Ive got far t…
... childhood ambition, and learn machine code.
I got familiar ...Frog Hopper/Code Name Mat Dixon's Pack ??I have found this tape in my collection that I can't find a reference to anywhere. It's a compilation of Frog Hopper and Code Name Mat (one game on e…
... compilation of Frog Hopper and Code Name Mat (one game on ...code cards etcJust been looking at the code cards etc for jetset willy and the like and i had a thought :o Back in the speccy days when they released games with s…
Just been looking at the code cards etc for jetset willy ... carefully hand copying a coloured code card for a game we ... easy downloading of games and code cards lol, scan a card ... to view while entering the code, or printed off in colour ...Calling Inform Z-code users...This is just a wild swing really. I've been using Inform 6 to try and develop an adventure game. Inform, if u didn't know, is a programming languag…
... adventure games in the Z-code format (the format that Infocom ...The Code - CSS queryThere is an interesting thread on CSS (yes, I peek in occasionally) regarding the game 'The Code': [url="http://groups.google.co.in/groups?dq=&hl=en&…
... occasionally) regarding the game 'The Code':
[url="http://groups.google ... for Checkpoint 2A for The Code?How to program Machine Code on a PC, and then run it on a speccy?Well, I've been looking into MC a bit more deeply recently - I reckon I could get my head round MC now. Back when I was a teenager, I couldn't see th…
... a bit cumbersome to actually code it on the speccy - what ...Mysterious bit of codeHi everyone, I found the follow piece of code in a game and was wondering what it does. ld bc,40ffh ld e,40h loop ld a,r …
... found the follow piece of code in a game and was ...40 Best Machine Code Routines - ZX SpectrumHi, Currently for sale on EBAY: 40 Best Machine Code Routines for ZX Spectrum [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=6917…
Machine CodeCan anyone point me to an online tutorial on ZX Spectrum Machine Code, please?
Can anyone point me to an online tutorial on ZX Spectrum Machine Code, please?Wanted: Machine Code Sprites and Graphics BookWould anyone be willing to either sell or swap this book. Its full title is Machine Code Sprites and Graphics for the ZX Spectrum : A complete guide…
... title is
Machine Code Sprites and Graphics for the ...need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... need is speed.
[code]DRTABL ;precalculated table, needed for ...
LD C,A ;storing shifted mask for next time
LD B,A ;storing shifted byte for next time
RET
[/code]Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…
Below is my WIP code to do smooth screen wrapping ... be most welcome
[code]
; ********************************************
; Char Offset ...
END
[/code]IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... spectrum using TASM
[code]
; ********************************************
; Char Offset ... /> PUSH IX
; ADD CODE to animate, i.e change ... /> END
[/code]Smooth Screen ScrollingHi Everyone, Any suggestions on what is the best way to do horizontal scrolling ie. in Zynaps fashion. I am working on a routine at the moment, whi…
... the moment, which uses pre-shifted blocks 32x16 and then blends ... to use, and how to code it most efficently.
