Search found 136 matches

by jbperin
Sun Oct 11, 2020 8:37 pm
Forum: C programming
Topic: H3 lib
Replies: 9
Views: 889

Re: H3 lib

This is great !!

Thank you for sharing this jewel !!
by jbperin
Sun Oct 11, 2020 8:09 pm
Forum: C programming
Topic: glOric - a Fast 3D Engine for C and Assembler projects
Replies: 32
Views: 7758

Re: glOric - a Fast 3D Engine for C and Assembler projects

Waou rax :shock: I visited your git repositories and I felt in love with : - your engine.c mecanism .. :o That's exactly what I miss to animate some moving object in the 3D world I create. - your H3 ilb .. It's what I was missing to put the sonar in the text part of the screen .. This lib is a marve...
by jbperin
Sat Oct 10, 2020 9:05 am
Forum: C programming
Topic: glOric - a Fast 3D Engine for C and Assembler projects
Replies: 32
Views: 7758

Re: glOric - a Fast 3D Engine for C and Assembler projects

This is too good :). reminds me of an apple II game - "stelar 7". https://www.youtube.com/watch?v=62tcjq7OBAo I want to play it when it's ready. Keep me a license key :) Hey , are you the rax from the hyper prolific RaxIss team ? If yes, I'm very glad to see you here and I want to say that I like y...
by jbperin
Sat Oct 10, 2020 5:08 am
Forum: Operating systems, utilities and other serious software
Topic: Hello from UK! and presenting dflat system
Replies: 30
Views: 1144

Re: Hello from UK!

Welcome 6502Nerd,

Nice to meet you and dflat :D

This language looks very powerful and convenient. Keep us posted.
by jbperin
Fri Oct 02, 2020 2:02 pm
Forum: Games
Topic: Wolfenstein / DOOM for Oric : has this been done?
Replies: 28
Views: 11658

Re: Wolfenstein / DOOM for Oric : has this been done?

As shown above, I felt on a big ratio to compute; full of heavy cos, sin, multiplication and division. Facing the denominator sin(alpha).cos(beta) - cos(alpha).sin(beta), I thought I was lost. But I decided to keep on struggling .. not fearing the size of the monster boss I had to defeat. I started ...
by jbperin
Fri Oct 02, 2020 1:52 pm
Forum: Games
Topic: Wolfenstein / DOOM for Oric : has this been done?
Replies: 28
Views: 11658

Re: Wolfenstein / DOOM for Oric : has this been done?

With permission of DBug I've started to rework the prototype he'd posted here . Here's where it has led : rewall00.gif rewall00.tap I've pushed the source code here . Despite I have some appealing ideas on how I could push this prototype a bit further (because it is terribly smart and I know how to ...
by jbperin
Fri Oct 02, 2020 6:00 am
Forum: 6502 assembly coding
Topic: substraction of two 8bits signed values into a signed 16 bits
Replies: 7
Views: 1261

Re: substraction of two 8bits signed values into a signed 16 bits

Hey!! Yep. I had missed that. 😀Thank you for your review.
by jbperin
Thu Oct 01, 2020 8:27 pm
Forum: General Discussion
Topic: Presentación.
Replies: 9
Views: 786

Re: Presentación.

Welcome Magoric,

Nice to meet you :-)

I've been a developer on Oric for one year now. Exploring real-time 3D topic.

See you soon :-)
by jbperin
Thu Oct 01, 2020 8:21 pm
Forum: 6502 assembly coding
Topic: substraction of two 8bits signed values into a signed 16 bits
Replies: 7
Views: 1261

Re: substraction of two 8bits signed values into a signed 16 bits

just 'underwater void' ! :D uwv.jpg Wow .. looks greats !! Anyway..., attached you will find your sources as one main C file and one ASM file. The idea is to redirect 'printf' to the printer output and to dump the results of the calculations in file 'printer_output.txt' generated by Oricutron. So y...
by jbperin
Wed Sep 30, 2020 9:24 pm
Forum: 6502 assembly coding
Topic: substraction of two 8bits signed values into a signed 16 bits
Replies: 7
Views: 1261

Re: substraction of two 8bits signed values into a signed 16 bits

Hey Iss !! So glad to see you back here :-) Why not to simply use 'signed int' for RayAlpha and RayBeta too, keeping the allowed values in the same range -127..128 ? :? IMHO, this will not slowdown significantly the calculation. Then the translation to ASM will be easier and you can continue to use ...
by jbperin
Wed Sep 30, 2020 6:10 pm
Forum: 6502 assembly coding
Topic: substraction of two 8bits signed values into a signed 16 bits
Replies: 7
Views: 1261

substraction of two 8bits signed values into a signed 16 bits

Hi all, I'm trying to translate in assembly 6502 language of portion of code that I wrote in C and I'm blocking on dealing with overflow circumstance. The code consist in computing the signed difference between two signed angle and use the result to index a look-up table. If the difference is "small...
by jbperin
Mon Sep 28, 2020 7:05 pm
Forum: Games
Topic: Upcoming brand-new Oric text adventure
Replies: 13
Views: 893

Re: Upcoming brand-new Oric text adventure

It looks cool !! I feel like Robinson Crusoe trying to survive in a desert place. Unfortunately, my english level is a bit too weak for me to feel confortable with this kind of text game. But I must admit it is attractive and seducing. It's the first time in my life that i play a text adventure game...
by jbperin
Tue Sep 22, 2020 7:23 pm
Forum: Painting tricks
Topic: Image mapping : Peer review needed
Replies: 19
Views: 3012

Re: Image mapping : Peer review needed

sam wrote:
Tue Sep 22, 2020 6:15 pm
It look like something is wrong.
You should try to project a (possibly rotated) checkerboard
sam.
Oups indeed .. :shock: :x :x
Failure.JPG
It seems the algo need a fix .. Thank you for your remark
by jbperin
Tue Sep 22, 2020 5:08 pm
Forum: Painting tricks
Topic: Image mapping : Peer review needed
Replies: 19
Views: 3012

Re: Image mapping : Peer review needed

the classic serial implementation for affine texturing a polygon is just two adds per pixel. In pseudo-C: for(x = start ... end) { pixel[x][y] = pixel[texture_x][texture_y]; texture_x += offset_x; texture_y += offset_y; } ... with appropriate modifications to fixed point. You can set up offset_x/y ...
by jbperin
Sat Sep 19, 2020 7:57 am
Forum: Hardware hacks and extensions
Topic: Oric extender - a basis for DIY projects and experiments
Replies: 10
Views: 1312

Re: Oric extender - a basis for DIY projects and experiments

I woud love to have one of this marvel.

Does it come with rippon cable and connector to the Oric extension port ?