first of all, thanks,
1. There are five different A20 tests described using the nomenclature: fast, BIOS, KBC, Vectra, and Always On, tried in that order. Whichever test succeeds, if any, will give feedback that it was selected. Perhaps that should only happen with the /VERBOSE option?
It should display some discreet message, just informative. Only aditional debuging info should be in the /VERBOSE mode ;-)
2. INT 15h, function 87h, was hooked to save and restore A20 status for any BIOS or other INT 15h hooking program which neglects to perform this rather key function.
The new code represents the input of five or six FreeDOS developers, code from at least three, and, indirectly from all the public A20 code out there which was used, further input from a cast of thousands.
Uau !!
- Maybe a change back to the original A20 check code, some disagreement there.
For some misterious reason, FreeDOS memeory manager is a very hot subject. IMHO you should just use good common sense (as you have been doing) ;-)
Alain
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