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Tutorial - full game from scratch in z80 assemblyI wrote a game from scratch to release in z80 assembly and wrote it down in tutorial form. Target is basically 48k speccy with the AY chip, or 128k s…
... scratch to release in z80 assembly and wrote it down in ... tutorial includes relatively thorough look at the AY chip.
at http://iki.fi/sol/z80 -
Were the full Sinclair Loki specs ever actually known?I was just curious. A lot was leaked to the media, but the exact specs seem different depending on source. Some say it could support up to 512x256 an…
... other than 256x192@9 bits/pixel.
Also, ... but given what was available at the time, that might ... ( Seagate ST225 ) for cross-assembly was too great to ignore ... RISC MCS51's running at 500~1000 mips now. ... A hundred slaved z80 cores at 1 GHz, all in ... -
Text compression methodsI once typed in a Text compressor from INPUT magazine, it worked on a first and second most common following letters algorythm and reduced the binary…
I once typed in a Text compressor from INPUT magazine, it ... it would be pretty slow at compressing and decompressing anything more ... -
PSI ChessHi, Anybody out there remember the game "PSI Chess" by The Edge? Well, there seems to be no problem finding a snapshot ot tape image for this game …
... you guys in the text file for getting ... /> These instructions were arrived at from a combination of my ... please let me know at [email="eddie.duffy@bigfoot ... /> - both players' clocks are at zero;
- White is playing ... thought I'd better print it. Okay, Mr ... -
How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... /> The basic concept of all assembly programing is:
Read ... says that these instructions start at memory address 32767
at least:
LD ... /> This is because BASIC will print the contents of the BC ... -
How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... job of introducing u to assembly language. I myself am ... are used heavily in assembly language so u will do ... -byte. U may wonder at this mumbo-jumbo, but ... A + B
PRINT C
in assembly:
LD HL ... are wot matters though. At the end of the program ... -
How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... job of introducing u to assembly language. I myself am ... are used heavily in assembly language so u will do ... -byte. U may wonder at this mumbo-jumbo, but ... A + B
PRINT C
in assembly:
LD HL ... are wot matters though. At the end of the program ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... = (y,x) coordinate of pixel
ex de,hl
print bytes
xor ...
or_fim: ;plot a single pixel
ld c,h ... br /> jr z, or_pixel2 ; pixel is at bit 0...
bit4: ... -
ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…
... the ROM routines for drawing text. Rather than adding
... of the attribute map at the bottom of ... is trickier when dealing with pixel scrolls -
; it ... ; place - that way around at least half will be correct ... scroll in new colours at this point
ld ... -
printer port redirect to (Windows) system printerIs there any emulator (+2A/+3 compatible) that can be configured to output the, say, parallel printer port to the Windows system port ? The default o…
... Printer emulation produces both a text output and a bitmap output ... the TXT file *AS* a text file - and whoever said you ... font outputs.
I can print to paper and then scan ... Studio's printer routine (Z80 assembly text file). Perhaps you can deduct ... -
did anybody program games for their spectrum?did anybody make games for their spectrum and have you still got them in tap/z80 format. i once attempted to make a side scrolling game but it didn…
... .
3) A text adventure game written in BASIC ... !
4) 4 text adventures written with The Quill ... tapes lying a steel trunk at my dad's place. ... number of balls
70 PRINT VALUE : IF X> ... 0 THEN GOTO 30: REM Print value and take next ball ... -
Z80 AssemblerSome of you may know that I'm working on a Z80 assembler. I thought I'd start a thread so I can see what people think and what they might want to see…
... length for labels? I suggest at least 32 chars.[/quote]
[quote]What about conditional assembly?[/quote] Certainly possible.
at that point that an ... - it's all defined through text files.
[quote] ... -
More "fake" screenshots, please.I don't know about anyone else, but I really like seeing Spectrum screenshots of modern and/or original games - even if there ends up being no game t…
... ZX or KO99 ;) ) then at least one person would be ... , if you look closely at the ship for example and ... emailed everyday about multicolor by at least one person, usually ... used, despite the preceding text to it. maybe i ... my way id have any pixel any color and add ... -
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…
... memory. 16384-22527 holds pixel information. The following short ... br />
To print a character at (10,12):
... calculating new screen addresses from pixel coordinates.
... It contains several of these pixel, character and attribute routines ... -
Should WoS get a facelift?I think everyone would agree that "The World of Spectrum" has the most comprehensive collection of Speccy related stuff, and is essential resource fo…
... but i was mainly aiming at Martijn and what he thinks ... 800*600, though setting my text size to "smallest" solved the ... />
_________________
Pixel Me Do?:
[url="http ... -
Retro Remakes Competition - The Conclusion!!!!Just had a look at Retro Remakes site([url]http://www.remakes.org/[/url]), noticed that the competition that they were running finished on Friday. A …
... Unfortunately it was never published at such, I think I ... point and click" variety at the time, and I ... a shame, but text parsers and text adventures seem to ... need to get fluent at it, and you cant ... />
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[B]Pixel Me Do?[/B]
[url ... -
AssemblersOk, two quick questions for you guys: 1) Can anyone give me a link to the Prometheus Assembler ? 2) Does anyone know of an assembler that satisfies …
... Store coding with ORG 50000 at 40000
(this ... printroutine
; start with PRINT USR 5E4
;-------------------------------
ld hl,text
loop ld a,( ... /> jr loop
text defm "I am printing"< ... -
Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…
... we see some meaningful code. At 5C00 the code comes into ... only cheekily loaded into E2A4H at this point ;)
8BC7H ... 59003
After looking at each one the favourite has ...
As the jump at E29E jumps anyway we need ... -
AssemblersProbably asked a question that's been asked a million times before... but... I've decided to do a bit of old Speccy machine coding again, after 20 y…
... .[/I]
[I]- DRawing at the bottom of the screen ... tape then press any key" at the bottom and screwing up ... border , o over, t write text ( normal and/or double sized ... />
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[B]Pixel Me Do?[/B]
[url ... -
Unknown Games For ZX-Spectrum For Spectrum in period from 1980 to 1993 was made more 15000! games ...Where other 9000?(Don't check info) Also i find Names of very good games fo…
... or happened to be at someoens house who had ... number of games were released at least twice - full ... Duck, this game is at the TZX Vault and ... a Spanish inlay, Portuguese text after the game loads ... br />
_________________
[B]Pixel Me Do?[/B]
[url ... -
C, Z88DK and the Sprite Pack Library I wrote a short demo that shows a taste of what can be done from C on the Spectrum: [url="http://justme895.tripod.com/zqa/pacmen.zip"]http://justme…
... new version of Sprite Pack at:
[url="http ... size placed on screen with pixel-precision.
+ Complete ... many people are looking for assembly language examples; the library ... comes with over 100K of assembly language source files.]
... -
Long Lost ListingsWay back in the day when I still had those three issues of Sinclair Programs (which got lost in the Great House Move of three years ago DAMNDAMNDAMN)…
... . It takes a line of text (42 characters) and scrolls it ... . It's not *quite* the PRINT AT 0,41; routine I'm ... -
POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…
... $=CHR$ (PEEK N)
30 PRINT N,PEEK N;" ";
40 ... PEEK N>=32 THEN PRINT B$
50 IF ... PEEK N>32 THEN PRINT
60 NEXT N< ... there is no line number at all. Use a REM statement ... (backspace). This will mean the text overwrites the line number and ... -
POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…
... will load the code starting at address 32000 and stop the ... PEEK N>=32 THEN PRINT CHR$ (PEEK N)
30 ... NEXT N
to print out the ascii and you ... can then list all the text in the program.
i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…
... there? Neither is there a "PRINT" function. There's plenty ... with assembler without knowing at least something at a higher level.< ... published in the '80s at the bottom of this page ... />
An alphabetical list of assembly instructions:
[url=" ...Game Editor questionI'm currently updating my image utility - TommyGun and my old Map editor, which I haven't released on WoS yet. My question is this. Would people li…
... the code that BASin throws at it.
[/quote]
assembly files not compiled into ... " declaration. A particular assembly file can refer to ... (eg certain constants and text strings) and RAM data ... will lie in RAM at some other address.
42 column text, Sinclair Print Utilities, etcI'm currently developing the next of the ZXIF text adventures - "43 Minutes" and, as a side issue, I'm really interested in 42 column text for this g…
... text to MC.
PRINT USR START,A$
Where at ... calculatorstack point to the printable text.This can be read by ...Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... :
Being able to plot at a pixel position = PLOT x,y ... the PRINT AT command to use pixels rather than character squares - PRINT AT 65 ... ROM to fit in a PRINT routine that worked by pixels ...
