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Machine code optimisationI'm geting back into z80 coding and wonder what the best way of showing how efficient the code is. I've got Rodney Zaks book and see there are timin…
... of showing how efficient the code is.
I've ... to determine how fast the code runs? -
Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... attempt at learning machine code on the Spectrum made ... reset and editing the code, which is still waiting ... assembler window. However, writing code on a real Spectrum ... crashing in case bad code is executed? Did they ... who were learning machine code back in the 80s ... -
Converting Basic code into machine codeIm just interested to know if I can converter a game I've written in basic into Machine code, Is their a program that can do this??
Im just interested to know if I can converter a game I've written in basic into Machine code, Is their a program that can do this?? -
128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…
... trick like this:
[code];; load a 4000 byte BASIC ... (23620),1
ret[/code]
Ta-da, BASIC ... total crash. Loading BASIC as code from the 128 BASIC interpreter ... 's the return from machine code that doesn't.
New game: JanosikI have a pleasure to announce my new game: Janosik In case if you wondered, Janosik (spelled Yanoseek in English) is a mountain folk hero,very popul…
... /> As for the game, the plot isn't very original, he ... idea from them but the code, level design and 90% of ...Rendering clipped glyphSometimes you need to render a glyph of arbitrary size to the screen. And clip it. For example: drawing a mouse cursor means combining drawing of a…
... like this -
[CODE]draw_clipped_glyph(
glyph_t *glyph,
rectangle_t *clip_rect);[/CODE]
My questions are ... make sure you only draw rows of glyph that ... way that follows your drawing code needs. This way you ...z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... I can draw sprites for a laff
[code]
... br /> }
}
[/code]
but the keyboard ... 'unexpected end of file'
[code]
#include
...
//draw some bytes to the backbuffer ...Collision detection for interlocking shapes[SIZE=3][FONT=Calibri]I?m looking for some advice as I?m not sure how to resolve the following problem. I have an in memory structure that holds info…
... example, if I wanted to draw an ?L? shape the structure ... =Calibri]3 ; 3 elements to draw, note that the item placed ... =3][FONT=Calibri]I have code that draws these and all ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... -screen access[/B]: You can draw [B]"btiles"[/B] anywhere on ... sprites (move or change image), draw btiles, and "fill" a bicolor ... "]here[/URL]
[*]Source code [URL="http://www.mediafire.com ...Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…
... ways to get PC developed code over to a physical Spectrum ...Self modifying code ??I made a game in C that was mostly accessing arrays and using FOR NEXT loops, I ran out of memory, so I was thinking would it be possible to use sel…
... possible to use self-modifying code so that say 20 FOR ... NEXT loops use the same code?
or 20 array look ... ups can use the same code?
When using C ... write out all the machine code necessary to do loops and ...Assembly code auto optimiserFor my Finders Keepers Plus project I'm considering writing an Assembly code auto optimiser. Way back when I wrote the original FK I considered optim…
... like this
[code]
call SomeSub
... ret
[/code]
could be ... br />
[code]
jp SomeSub
[/code]
... br />
Example
[code]
; My source
;< ...Seeing the code/In emulatorHello, Here is my Noob question. Is it possible to see the code for these games in an emulator? To be able to study the code? I am using the Sp…
Hello,
Here is my Noob question. Is it possible to see the code for these games in an emulator?
To be able to study the code?
I am using the Spectaculator emulator on a PC.
Thanks,
MGet rid of 'Bytes:' when loading codeHow do you hide the 'Bytes:' when loading code? I've tried saving as CHR$ 22 + CHR$ 6+ CHR$ 0 (a blank part of the loading screen) but it still appe…
How do you hide the 'Bytes:' when loading code?
I've tried saving as CHR$ 22 + CHR$ 6+ CHR$ 0 (a blank part of the loading screen) but it still appears at 3,0 and disrupts my screen!Code to test if a rectangle is in a rectangle[SIZE=3][FONT=Calibri]I am looking to write some code that will check if a rectangular shape is outside or overlapping a second rectangle. If the sma…
... am looking to write some code that will check if a ... have concocted the following sudo code to achieve this outcome:[/FONT ... , has anyone got some Z80 code that already does this? I ...Code analysis on SNA filesI was wondering if anybody has attempted to convert all TZX/TAP files into SNA files? I would prefer SNA files as they're easy to use and search from…
... /> Basically the first bit of code analysis I've been doing ...About how z88dk generates code and makes room for variables.When you attempt to code games for the 128K models using z88dk in C you need to somewhat control where variables are stored in memory. I thought tha…
... ;
unsigned char *script;[/code]
If ... for example:
[code] script_result = 6;
script_something_done = ... = 8;
script = 9;[/code]
I can see ... looking at the generated code:
[code]ld A, $ ...Autorun code in an emulator?[FONT=Calibri][SIZE=3]I am using Tommygun and pasmo to develop my game. This works fine but each time the emulator is started and file loaded I then …
... type a line of code to execute my code. Is it possible ... it will auto run my code?[/SIZE][/FONT]Help a small machine code game.Hello all you clever wossers are there any GOOD?? games that are in machine code (no basic apart from the loader,rnd usr bit) but are very small ma…
... ?? games that are in machine code (no basic apart from the ...ZX Spectrum code examplesThe shortage of sites with decent code examples seems to be few. The links to alot of sites that used to host them are disappearing into the ether. …
... shortage of sites with decent code examples seems to be few ... .
How about place code examples in this thread or ... special area for zx spectrum code.
There is a ...What's wrong with this code?[code]10 LET X=1+INT (RND*99999999): LET Y=1+INT (RND*99999999) 20 INK 4 30 PAPER 0 40 PRINT "Quest for ye flask!" 50 PRINT "?2014 Yoshiatom" 60 PRIN…
[code]10 LET X=1+INT ( ... 0: CLEAR : GO TO 100[/code]
For some reson the ...Loading AGD games into AGD to check codeHey there Not sure if this is quite the place to put this but it covers both Jonathan's AGD and Spin and is a question about developing my AGD game.…
... look at other AGD game code to get [strike]steal some ... my games and view the code to see how things work ... .5) to view the game code?
Any help gratefully ...Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
Just putting this code up for people ... the moment.
[CODE]
; Bi-Colour Scrolling- ... 49152) for colour map and code libraries.
;Use ...
ret
;Draw character
;--------------
print_char_obj_hl_b_c
How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... , I started reading about machine code (in fact one of my ... seeing you all exchange assembly code and wondering how the & ... these guides on how to code, but I can't for ... "easy" guide called Mastering Machine Code on your ZX Spectrum. Needless ...Under development: COUSIN HORACE - with playable demoHi fellow Spec-chums, for the first time ever, I am publicly disclosing some details about a game I am currently working on. It is an epic adventure…
... maze exploration
[*]An immersive plot illustrated by Spectrumized pictures and ... five parts of an emergency code which once entered into the ...Learning Machine Code the +2a wayHello again all, I thought I'd ask in this forum as the other categories seem less relevant. I keep re-reading the thread below with the advice given…
... him to get into machine code. I've been reading ... to try out the m code type routines for music ... purposes of getting into m code (bearing in mind I' ... a book/tutorial on m code specifically for +2a +3?? ... plod on hoping all that code will actually work??
...BASin won't accept this code?Taken from the Oneliner contest 2007: [CODE]1 LET n=191: DIM i$(4,9): FOR g=2 TO 4: LET i$(g-1)=" # # # # ": NEXT g: LET b=0: LET p=16: LET a=p: LET …
... the Oneliner contest 2007:
[CODE]1 LET n=191: DIM ...understanding machine codeHi Quick question. Am not really sure if it fits development forum as its not really development per se its more a learners question about developm…
... have a question about machine code.
[QUOTE]E1 S_PRINT ... following Toni Bakers Mastering Machine Code on your ZX Spectrum and ...Game code view DebuggerHi Is opening up a game such a manic miner in a debugger such as spin going to give me a true view of the code used in developing the game? Cheers
Hi
Is opening up a game such a manic miner in a debugger such as spin going to give me a true view of the code used in developing the game?
Cheers
