1999 ESP magazine: Listings 1-5 from Tony Gray's article “Using Flash in an 8051-Based System” from December 1999 Embedded Systems Programming magazine. The zip file contains 5 text files. The article is not available online. Here is the article description: “Integrating the boot loader with the application is one of the challenges in a flash-based design. This article describes how the boot loader jumps to the application, how the application jumps to the boot loader, and how to handle interrupts and the reset vector in a medium-sized 8051-based design.”