-
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…
SpecBAS 0.747 Now available!Hiya folks - it's update time again! SpecBAS has had a load of new fixes, as well as some new additions! Firstly, as you all wanted it, SpecBAS can…
... what's new:
[code]
What's new for ... /> Bugs Fixed:
The "Scroll?" message appears as it should ... , not the specified line
[/code]
The new ORIGIN ...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 ...BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
... post it here?
[CODE]/* ----------------------------------------------------------------
* BIFROST* ENGINE HI-DEMO ... /> int dlin[NUM_TILES]; // hi-res vertical tile movement
int dcol ...BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
... the same way:
[CODE]/* ----------------------------------------------------------------
* BIFROST* ... dlin; // hi-res vertical tile movement
int ... /> }
}
}[/CODE]
The compiled ...BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…
... draw the player:
[CODE]/* ----------------------------------------------------------------
* BIFROST* ... , dlinPlayer; // hi-res vertical sprite movement
int ... 0;
}
}
[/CODE]
The compiled version of ...Moar TR-DOS to tape conversions!I have posted three lame disk-to-tape conversions through snapshotting before, now (I guess) it's time to bring the rest of my complete collection he…
... Nintendo's hit game. The scroll texts are in Russian, the ... inspired after Brick Game handhelds. Code and music by Stanislav "KSA ...Interview with Steve Wetherill (Odin)Hi you all!!! Here is the interview done to STEVE WETHERILL (Nodes of Yesod, Robin of The Wood, Arc of Yesod, Heartland... ?Odin!) and published at […
... methods to download the assembled code to the target machines, ... had previously developed music driver code and composed music for ... have had time to add vertical jumping and platforms to Heartland ... , especially Cobra. His scrolling code was second to none.
BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…
... implementation:
[CODE]/* ----------------------------------------------------------------
* BIFROST* ... NUM_TILES]; // hi-res vertical tile movement
... /> }
}
}[/CODE]
The compiled ...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 ...BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…
... in different situations:
[CODE]/* ----------------------------------------------------------------
* BIFROST ... linPlayer; // hi-res vertical tile position
int ... }
}
}[/CODE]
A compiled version of ...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 ...Get a listing to .txtI am messing with an old Spectrum game which was written in Basic for the 48k Speccy (not compatible with 128s). I get an error in the begining of th…
... the game and tha basic code is visible.
I am ... course!).
In the Scroll? message I press BREAK and ...BASIC printer drivers for proportional and 6x8 printingcore features: * fully relocatable code; just do LOAD "" CODE startaddr:RANDOMIZE USR startaddr with any 'startaddr' * do POKE (startaddr+1),chan…
... br /> * fully relocatable code; just do LOAD "" CODE startaddr:RANDOMIZE USR startaddr ... +3),1 to turn on 'scroll?' query (default state)
* ... pixels
the code is completely free for any ... ]64#4[/url]. the code is fairly big and unoptimised ...BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... listing is as follows:
[CODE]
/* ----------------------------------------------------------------
... * 20 LOAD "tiles"CODE: LOAD "tilemap"CODE
* 30 ... int linPlayer; // hi-res vertical tile position
int ...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 ...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 ...Interview with Clive Townsend (Saboteur)Here you have at [URL="http://www.elmundodelspectrum.com"]www.elmundodelspectrum.com[/URL] this exclusive interview with Clive Townsend. Don?t forget…
... get the backgrouds to scroll fast enough. Rob White ... ]
The original code was written on an ... again and load my source code and the assembler ? ... from the actual Spectrum source code (via Ezcode) so ... finer details of how the code actually works.
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 ...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 ...Works in Fuse & SpecEmu, not ZXSpinI decided that I wanted to change the scroll routine which I was using for compiling the Trailblazer maps, as I'd just copied it out of Andrew Hewson…
... I wanted to change the scroll routine which I was using ... This is the routine.
[code]
CHARSCROLL:
push ix ... ,$5080,$50a0,$50c0,$50e0
[/code]
and this ... which it is called.
[code]
PRINTMAP:
ld ...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 ...
