[CODING ARCHIVE]

Each piece of code is availible as an online text file or as a downloadable zip package. The zip file contains all needed graphic files and an executable file, in addition to the source code. All source code is (C) Copyright Detox 1999-2007 and released under a license similar to the ZLIB software license.

Tcl/Tk PPP login tool
This tool requires a POSIX compliant operating system such as Linux or Unix. The Tcl/Tk script code was written with the Expect and BLT 2.3 extensions. This program allows you to graphically configure, login, and logout from a local dial-up ISP using PPP. It can also edit an online HTML page to show your login status and current IP address.

Tcl/Tk Source

Pixel Feedback
Written using Turbo C with inline x86 assembly instructions. The idea is similar to a standard "fire" pixel feedback routine. Adjacent pixels are averaged between frames. Sprites bounce off the walls feeding the pixel feedback averaging routine to create fading trails. The frame rate is not sync'ed to the video card's vertical retrace or limited by a hardware timer function.

Original C code & Original DOS Executable

C (with SDL library) Source and win32 Executable

3D Vector Ball
Written with Turbo C and inline x86 assembly instructions. The source includes the classic quick-sort routine to depth sort the 3d points. There is no syncing to the video retrace or a hardware timer in this version.

Original C Source & Original DOS Executable

C (with SDL library) Source and win32 Executable

2D Pixmap Rotation
Written with Turbo C and inline x86 assembly instructions. The graphic tile is hard coded into the source. TEL PECVD stands for Tokyo Electron Limited, Plasma Enhanced Chemical Vapor Deposition. I wrote the code during a summer internship at Tokyo Electron in Beverly, MA during the summer of 1995. Again, with this code there is no frame limit inposed by the vertical retrace interrupt or a custom hardware timer interrupt.

Original C Code & Original DOS Executable

Classic "Fire" Routine
Written with Turbo C and inline x86 assembly instructions. My version of the classic fire routine includes a floating point palette scale function to produce smooth color gradients. It should be useful in other projects which require this type of palette (see the blur effect above). There is no frame rate limit from a vertical sync or hardware interrupt in this version.

Original C Code & Original DOS Executable

C (with SDL library) Source and win32 Executable

Simple Afine Texture Mapping

External description of Afine texture mapping
Watcom C [32bit dos executable via DOS4GW]. This is 100% C code, 100% floating point, and 100% un-optimized! It is slow, but it works and it was my first shot at texture mapping. As with most other code on this page their is no vertical retrace sync or hardware timer limit on frame rate. The executable was lost long ago and I no longer have Watcom installed to compile the code. I may re-write the routine for ANSI C under GCC using the SDL library.

Original C Source

HP48 Dungeon Crawl Game
This was written on an HP48GX using Hewlett Packard's user RPM language. It is a simple graphic game of exploration and battling a chasing creature. The source button links to a text dump of the HP48G directory which contains all of the game variables and functions. The "Zip Package" button links to a binary object that can be loaded into EMU48 or an actual calculator. STO the object into a variable, enter the directory, and execute the MAIN variable. Press a key to start. [4][6][2][8] move your character around.

HP48 Mandelbrot Plotter

External Resource and Definition
This was written on an HP48GX using Hewlett Packard's user RPM language. It plots the Mandelbrot set given a set of input parameters. The source code button links to a text dump of the actual generator. The "Zip Package" button links to a .BIN object that can be loaded into EMU48 as an object or into an actual calculator. STO the object in a variable and execute the MNDB variable in the directory it creates on your calculator. There is also a VIEW variable/function that can view some pre-generated plots also included in the .BIN file.

HP48 Simple UofO Pict Builder
This was written on an HP48GX using Hewlett Packard's user RPM language. This simple program draws a "UofO" picture on the screen using basic drawing commands. The source button links to a text dump of the HP48G directory which contains all variables and functions.

Height Field
GCC ANSI C code using the SDL library. This is 100% C code with some fixed point math sprinkled around. Use the number pad keys [4][6][2][8][7][9] to move around the height field. This routine achieves the heightfield effect by drawing vertical lines front-to-back while eliminating over-draw. This is probably my first attempt at cross-platform code. It compiles nicely on Linux and Windows, and probably Macintosh too with no changes to the source.

C (with SDL library) Source and win32 Executable

2D 32bit-Color Gravity Game
GCC ANSI C code using the SDL library. This is 100% C code with 100% floating point math, and compiled for i586 processors or better. Use the [W][A][S][D] to move the ship. [ESC] exits. All graphics are full 32-bit color and 100% NOT graphics hardware accelerated. Everything is done in system memory and then blitted across the bus. Yes I realize a 3D accelerated version would be a couple orders of magnitude faster. It compiles nicely on Linux and Windows, and probably Macintosh too with no changes to the source.

This is an ALPHA RELEASE that demonstrates the core graphic and collision routines with only 1 level, no success criteria, and the most basic graphics possible (although they still are 32bit color).

C (with SDL library) Source and win32 Executable

2D 32bit-Color Bitmap Rotation
GCC ANSI C code using the SDL library. This is 100% C code with 100% floating point math, and compiled for i586 processors or better. It demonstrates a bit of code that rotates any size 32bit-color bitmap to any angle, and copies the results into an SDL surface. [ESC] exits. All graphics are full 32-bit color. It compiles nicely on Linux and Windows, and probably Macintosh too with no changes to the source.

C (with SDL library) Source and win32 Executable

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These web pages, images, and other content (C) Copyright 2007 Detox, all rights reserved