TOHEX I have been using Microsoft's M80 assembler to generate a custom bios for my system. There are problems in using an otherwise fine product for this purpose, namely L80. L80 will not link a file which is targeted beyond the TPA of the current system. Also, to just get an executable file, L80 is both slow and complicated in places where it will do the job. Most of my assembly programming efforts are small programs. By this I mean that they consist of only one module. There are no EXTERN/PUBLIC symbols to be resolved, They are ORG'ed to where I want them to be, and require no relocation. This program allows me to convert a program created with a few constraints directly from a REL file to a HEX file. It does not care where in memory the HEX file is to be loaded, and it does no relocation. (Have you ever used ORG 100H in an M80 file and then found those 256 unused bytes and a jump to 203H after linking?) I know that all of that stuff can be overridden in the linker, but give me a break, I LIKE load-and go. TO USE IT In order to use this conversion utility, there are a few constraints on your assembly language files. 1. They can only contain CSEG and ASEG directives. When using TOHEX, CSEG and ASEG are identical. 2. They cannot contain any ENTRY,PUBLIC,EXTERN or COMMON symbols. Assemble your file using M80: M80 FUBAR=FUBAR You will now have FUBAR.REL . Now run TOHEX. TOHEX FUBAR.REL FUBAR.HEX Now, either run DDT FUBAR.HEX or LOAD FUBAR. For a CBIOS you have the HEX file to be merged with CPMxx.COM and you are ready to generate a new system. Enjoy. Ed Ganger 605 Laurel Ave Johnson City, TN 37604 (615)929-7053 It is requested that if you modify and distribute this software, you share the blame. I don't want midnite calls for bugs I did not bring into the world. Actually, I don't want midnite calls for bugs I created, either. 1800-2200 Eastern Time, please. Thank you.