-
Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…
Is there a liberally licensed fixed point math lib for z80 somewhere? ... -
Adjusting your code for screen refreshingOk, I'm aware that I should know it already after writing 5 Spectrum games in machine code but interrupts and screen refreshes were always my weaker …
... refreshes were always my weaker point.
So let me ... line A. This is some fixed point when I could start my ... -
Digital rot - the modern DRM scourge[B]A place for History[/B] I love WOS. Completely love it. It is completely crazy in its scale and is the best of its kind. I love that games have s…
... . They were available at a fixed point in time, but will never ... -
Find-Fill-Copy functions for BASICThere's not much going on here, so here's three m/code routines to provide some data manipulation functions which are otherwise slow to do from BASIC…
... assembling to run at a fixed point then the 'initsr' routine can ... -
fixed point mathsI came across this site which is quite interesting [URL="http://z80-heaven.wikidot.com/advanced-math#toc18"]http://z80-heaven.wikidot.com/advanced-ma…
I came across this site which is quite interesting
[URL="http://z80-heaven.wikidot.com/advanced-math#toc18"]http://z80-heaven.wikidot.com/advanced-math#toc18[/URL] -
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…
... to implement either Bresenham or fixed-point DDA (DDA is generally faster ... -
Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…
... at generates a table of fixed point byte offsets to add to ... .16 numbers. I'm using fixed point 8.8 ("pitchint"."pitchfrac") which ... -
Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…
... period using the 8.8 fixed point thing we've been tossing ... 've been using 8.8 fixed point form, which allows a precision ... to choose a 3.13 fixed point format.
I think ... -
Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …
... . All I need at this point is to covert the BASIC ... - either homing in on a fixed point ie. where the player was ... -
Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …
... /> Perhaps you could try using fixed-point arithmetic as opposed to floating ... -point. You probably only need to ... significantly faster than their floating-point counterparts; you'll also get ... -
Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …
That code won't produce the same effect.
You are along the right lines GOC, fixed point would be simpler.
I'm working on a fixed point example and I'll post it soon. -
Problem with rotating procedureHi folks! I wrote a proc in z80 asm, based on: x' = x * cos (z) - y * sin (z) y' = x * sin (z) + y * cos (z) I used a precalculated table of sin a…
... perform reasonably accurate 8.8 fixed point calculation. Anyway, the signed X ... -
Pixel Explosion CodeJust a little snippet to cause explosive effects. It uses table lookups for the screen address, and can handle up to 32 pixel particles. A particle…
These sounded great...Torstum's post about a hypthetical new micro-computer (on this forum) reminded me of something, but rather than post in that thread, I thought I'd ma…
... to constantly gaze at some fixed point in the distance, Magic Eye ...Floating point representationI'm planning on picking up the [url=http://matt.west.co.tt/category/spectrum/openzxrom/]OpenZXRom[/url] project from where I left off a few months ba…
... Atari 8bit machines used floating point only and it slowed them ... suited their needs. Variable precision fixed point is pretty fast and there ... a speed boost. I should point out that that replacement version ...Floating point representationI'm planning on picking up the [url=http://matt.west.co.tt/category/spectrum/openzxrom/]OpenZXRom[/url] project from where I left off a few months ba…
There are some [URL="http://forum.microchip.com/tm.aspx?m=121216"]Fixed point links[/URL] you could check out. I think the Z180/HD64180 code should be easy to port.
The math libraries for Z88dk could be another source for code.Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... vector calculations were done as fixed point with the low byte holding ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... vector calculations were done as fixed point with the low byte holding ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... vector calculations were done as fixed point with the low byte holding ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... vector calculations were done as fixed point with the low byte holding ...Reading the Kempston & AMX mouse...Does anybody know which ports & values are used to read the AMX and/or the Kempston mouse? I'm playing with developing a shoot-em-up at the moment, …
... /> These routines use 8.8 fixed point for mouse coordinate which allows ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... vector calculations were done as fixed point with the low byte holding ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... start of INTREQ signal as point zero - unlike the start of ... of INTREQ signal is a fixed point.
So maybe we ...Leave AY Chip alone guysWould you have a go at a child with down syndrome? No, thought not. AY has Asberge Syndrome, it's a form of Autism - think of that please before y…
... are differences too, but the point is, VB is probably worse ... default to single-precision floating point.
"However, Visual ... is essentially a 64-bit fixed-point number with 15 digits to ... the right of the decimal point. This can be accurately used ...plotting and rotating wireframesCan anyone point me to an example of plotting a (2d) shape and rotating it in basic. Unfortunately my trig was never that good and I want to get a h…
... code 3D games typically use fixed point math with their own clipping ...Leave AY Chip alone guysWould you have a go at a child with down syndrome? No, thought not. AY has Asberge Syndrome, it's a form of Autism - think of that please before y…
... are differences too, but the point is, VB is probably worse ... default to single-precision floating point.
"However, Visual ... is essentially a 64-bit fixed-point number with 15 digits to ... the right of the decimal point. This can be accurately used ...A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... ' for two parameters
- For Fixed Point (Fast but imprecise decimals): 16 ...Wireframe GraphicsI'm trying to get my head round 3d / wireframe graphics and not really having much luck. I've had a good look on google, but mostly come up with wir…
... need knowledge of 3D basics, fixed point calculations, matrix calculations, line drawing ...Wireframe GraphicsI'm trying to get my head round 3d / wireframe graphics and not really having much luck. I've had a good look on google, but mostly come up with wir…
... pain) and knowledge of some fixed-point math.
If you ...Wireframe GraphicsI'm trying to get my head round 3d / wireframe graphics and not really having much luck. I've had a good look on google, but mostly come up with wir…
... model-view transformations at this point. Try simple rotation of points ... part is to get the fixed-point math working. This is a ...
