8051 software development tools

 8051/8031 microcontroller assembler as31-32 (35 kB .zip) 32-bit dos/windows, complete documentation also included.

 INTEL's ApBuilder (3.6 MB .zip) windows, for use with most Intel MCS® embedded controllers and Intel386 and lower processors. Also get the hypertext manuals & datasheets, or go to the Intel ApBuilder web page.

 Programmer's File Editor (PFE), (300 kB .zip) windows95. A text editor that allows you to save text as any file type. Also has a word find feature.