These files are provided "as is" at no charge and are guaranteed to be worth at least half that. Unless specified otherwise, documentation and support is provided within the files.

80x86 assembly language macros for nestable conditional structures (if/else, until, while). See my "Some Assembly Required" article in the Dec. 1997 issue of Embedded Systems Programming for a detailed explanation.
Updated 11 Jun 97

RAMless debug monitor source code for 80x86. This debug monitor requires only a working CPU, ROM and 8250/16450/16550 (or equivalent) serial port. The source code requires the conditional macros above.
Updated 22 Apr 00

Excel worksheet to help find closest standard resistor values for series, parallel, and adjustable voltage regulator circuits.
Updated 22 Apr 00

Perl script and html file to format and display your web server's log file.
Updated 3 Aug 03

• Skips over unwanted log entries - displays from any date to the end of the file
• Optionally formats IP address, date/time, filename, referrer in columns
• Groups sessions by color indicating the 1st file visitors viewed, about how long they stayed and how many files they viewed
• Reduces clutter by optionally skipping *.jpg, *.gif, *.css files, attempted virus attacks, and cgi parameters
• Hilights referrals from search engines
• Match up to three keywords with AND/OR logic
• Optionally displays only referrals from other websites and search engines.

Perl script to extract specified text from an HTML file for display in a separate window or for inclusion within another file.
Updated 9 May 05

"Tricks with PICs" Powerpoint presentation offered at the 2004 Del Mar Electronics Show.
Updated 28 Apr 04

C source code for stack-oriented, extended precision math. This file is for PICs but could be adapted for other processors.
Updated 3 Aug 03

JDraw windows program to make precise measurements in a jpg or bmp file.