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Face-Off: ZX Spectrum vs. Commodore 64 articleA very nice write up.... [URL="http://www.eurogamer.net/articles/digitalfoundry-face-off-zx-spectrum-vs-commodore-64"]Face-Off: ZX Spectrum vs. Comm…
A very nice write up....
[URL="http://www.eurogamer.net/articles/digitalfoundry-face-off-zx-spectrum-vs-commodore-64"]Face-Off: ZX Spectrum vs. Commodore 64 [/URL] -
What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
...
Anybody help ?
[CODE] org 30000
; We want ... basexy ld a,22 ; AT code.
rst 16
... /> ld a,144 ; ASCII code for User Defined Graphic 'A ... />
; UDG graphics.
[/CODE] -
z88dk vs. sdccI've just read this article (in Spanish) [url]http://www.cpcmania.com/index2.asp?urldest=Docs/Programming/SDCC_vs_z88dk_Comparando_tama%F1o_y_velocid…
... quite interesting. Actually you can code great games with z88dk with ... -
Help needed... RND in machine codeI have been battling away trying to convert a simple BASIC routine (below) to machine code, but to no avail. The routine is used to fire 2 bullets a…
Skool Daze source code (and others)I suggest adding the source code for [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0004549"]Skool Daze[/URL] (available [URL="http://pyskool…
I suggest adding the source code for [URL="http://www.worldofspectrum ... br />
[QUOTE]The source code file contains a detailed list ... to Skool[/URL] (source code with list of bugs available ... Contact Sam Cruise[/URL] (source code with list of bugs available ...Hep needed with a bit of code...I've written a bit of code to make a character move across the screen, but the counter stops at 29 when the 3 lines to delete the characters trail ar…
... 've written a bit of code to make a character move ...z80 Code Profiling (RESOLVED)Hi All, Just a quick question to ask if there is any way of profiling z80 Code for the Speccy??? I'm trying to write a piece of software and I curr…
... any way of profiling z80 Code for the Speccy???
code, which is a pain in ... to auto-profile the running code, I would be extremely grateful ...Machine code loopsThis might sound a bit daft, but I,ve forgotten how to do loops using th 'b' register... I want to loop this x mount of times: [CODE]ld a,r and 6 i…
... mount of times:
[CODE]ld a,r
and ... /> call 43100
call 45000[/CODE]
There is any ...8-bit art "Video Games vs. Real Life"Stumbled across [URL="http://twistedsifter.com/"]an interesting website[/URL]. Among the different sections I came across these pics, there are [URL…
... .com/2011/02/video-games-vs-real-life-art-aled-lewis ...Optimisations in Exomizer Z80 decrunch codeThis is the 163 bytes old code (simple and optimized): [CODE] ld iy, exo_mapbasebits ld a, 128 ld b, 52 push de exo…
... of 3 bytes. Changing this code:
[CODE]
call exo_getbits
code)
[CODE]
call exo_getbit
code:
[CODE]
ld iy, exo_mapbasebits ...Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …
... underlying colour alone:
[CODE]
;
; Output of Messages ... /> .msgfir defm " PRESS FIRE "
[/CODE]
On entering the ...Retro Asylum Podcast#27: Double Dragon Vs Streets Of Rage 2It's Friday so it's time for another episode of Retro Asylum. This week the show is hosted by Andy Goday & Dean Swain, as usual there is plenty of co…
... main feature is Double Dragon Vs Streets Of Rage plus you ...Speedlock Source CodeOooh - found some interesting Amstrad/Spectrum Speedlock source code over at [url]http://web.archive.org/web/20070126232648/http://andercheran.aiind.…
... interesting Amstrad/Spectrum Speedlock source code over at [url]http://web ...Code execution logging/profilingAs revealed in [url="http://www.worldofspectrum.org/forums/showthread.php?t=41666"]this thread[/url], I'm adding support for reading code execution l…
... 'm adding support for reading code execution logs produced by emulators ... of working out what's code and what's not in ... can do some kind of code execution logging or profiling, for ...Relocating a block of code as to work on a 16k spectrumI've written a game in from 50000 to 65535 and was wondering if there were any way to relocate the entire block of code to work on a 16k Spectrum. I…
... relocate the entire block of code to work on a 16k ... will move a block of code and alter all the jumps ...Freescape based on reverse engineered "I of the Mask" code?That's what Sandy White has said in this interview just published on Eurogamer: [url]http://www.eurogamer.net/articles/2013-03-06-code-britannia-san…
... .net/articles/2013-03-06-code-britannia-sandy-white[/url]
code and based the Freescape engine ...Assembler v Machine CodeHi. I've been looking at a lot of the code examples in the Development section and can see that Assembler is the way to go. However, I was wondering …
... at a lot of the code examples in the Development ... actually codes in neat Machine Code?
I use ... total control over the actual code, and where various variables are ... to replace a lot of code if I need to ... an example sheet with some code on it, but I ...plus d machine code loader issueas many of you know i have done / been doing quite a few tr-dos recracks for the plus d but i have come into a bit of a problem the plus d machine co…
...
the plus d machine code loader requires you to have ... after is a bit of code to put before the loader ...How to test Z80 Code?Hi All, Is there a way to test a block of z80 code (nothing speccy specific in it) with many different inputs? The reason I ask is that I'm writing…
... test a block of z80 code (nothing speccy specific in it ... and want to check my code's output for every combination ...PENTAGRAM and THE CODEHey, I have these two games up for grabs. Pentagram needs no introduction. Just note that the clam is missing 3 of those little thingies that hold …
... loads fine :)
The Code is a 1984 release, or ...ZTX313 vs 2N2369 pinoutJust for info: [IMG]http://benophetinternet.nl/hobby/vanmezelf/2N2369 vs ZTX313 pinout.jpg[/IMG]
Just for info:
[IMG]http://benophetinternet.nl/hobby/vanmezelf/2N2369 vs ZTX313 pinout.jpg[/IMG]Machine code loopsDear all, 30 years too late I know, but I'm finally starting to get to grips with Machine Code - something I could never manage back in my early tee…
... get to grips with Machine Code - something I could never manage ...Are these files of any use to anyone? (MANIC MINER MUCH FASTER AND SMALLER CODE)I've not touched any of this for 3 years, I thought I lost it when I had to reformat my C: drive. EDIT: These links might work Z80 source [url]http:…
... did rip off the movement code from the JSW disassembly after ...CODE SCREEN$ in MCIs there any way of determining what character is displayed at a certain co-ordinate from machine code like the 'IF CODE SCREEN$=' arrangement in bas…
Is there any way of determining what character is displayed at a certain co-ordinate from machine code like the 'IF CODE SCREEN$=' arrangement in basic?Machine code assistance please #1Dear all, Learning the ropes here, so please excuse these odd questions which may seem simplistic to you learned lot. This routine is placed at 33…
... it gives me 32867.
[code]
ld l,155
ret
[/code]
When I add ... the beginning, the following...
[code]
ld hl,0
ld bc,0
[/code]
...it seems to work ...How to write self-relocating code using Pasmo?With z80asm, I can write code like this: [CODE] org 0 ; a total lie, but makes the reloc sums work .dest: equ …
... ; target address of relocated code
ld bc,.reloc_start ... ld bc,.reloc_len ; length of code to relocate
ldir ... lots of code
;; lots more code
;; even more code
< ...BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…
... ' timer (multiplied by 100)[/CODE]
The ... br /> BIFROSTstart() ' enable BIFROST*[/CODE]
This ... () ' wait for next frame[/CODE]
Even ...Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... a spectrum in assembly/machine code... No fancy screen shinanagins, ... "/program loader.
[code]
10 LET X=61440 ...
Paired registers
[code]
03 = INC BC
3C
C9
[/code]
returns... 61440...
The Pros and Cons of "alternative" assembler syntaxContinuing from [URL]http://www.worldofspectrum.org/forums/showpost.php?p=720754&postcount=72[/URL] [QUOTE=u6c87;720754]But that wouldn't change if…
... sdas or sdcc will share code on the web that contains ... possibility of finding bits of code that do what you want ... bit broken (ADD A,B vs SUB B for example).
Squishing code up nice and small then unsquashing it in assemblyI refer of course to data compression. I've done a search and there are lots of good compressors, but I can't seem to find one that works in assembl…
... a short bit of assembly code (exactly what I'm after ...
