Aucbvax.1588 fa.info-cpm utzoo!duke!decvax!ucbvax!W8SDZ@MIT-MC Wed Jun 10 01:18:05 1981 Saving money on F80 and M80 I recently noticed the following message on a remote CP/M system and thought it might be of interest here: Date: 5/30/81 From: ANDY BENDER To: ALL Re: CHEAP FORTRAN AND MACRO 80 PROGRAMS If you want a copy of the Microsoft F80 and M80 programs as well as their support software and you want to get them with free updates for a year and be a legal user read on. While not free, Heathkit sells these programs, doctored up so they only run on Heath systems, at a discount. The discount is quite steep and the free updates are attractive. You will need to know about DDT and SAVE to fix them so you can use them: FOR FORTRAN: >DDT F80.COM then alter the LXI d,barf at 2C38 to jmp 2C90. Exit from DDT and do a SAVE 107 F80.COM FOR MACRO80: >DDT M80.COM then alter the LXI d,barf at 4392 to jmp 43EA. Exit from DDT and do a SAVE 75 M80.COM You now own legal copies of both programs suitable for use on your CP/M 1.4 or 2.2 system. This patch bypasses the vendor code check in the CP/M serial number and also bypasses some I/O twitching that must be important for Heath systems. The other system programs distibuted on the disk do not need patching these programs (LIB, L80 XREF etc) assume if you got to use them you must be ok. The same patch is probably possible in other Heath software such as BASIC Compiler or COBOL Compiler. I have not researched these programs however. My advice to fix other software would be to look at the area in which the vendor code check is being carried out and follow the same bypass as I did in M80. Lots of Luck - Happy Computing from us at NSI. ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.