Re: [Freedos-devel] making himemx and jemmex more foolproof on old bios versions

2016-07-20 Thread Antony Gordon
Hi, I think at this point a comparison should be done with Microsoft's version on this machine to see if any differences can be detected. Also, I would run Microsoft's OS in the emulator to see On Wed, Jul 20, 2016, 3:34 PM Maarten Vermeulen wrote: > I looked at int 15h lately, int 15h is not s

Re: [Freedos-devel] making himemx and jemmex more foolproof on old bios versions

2016-07-20 Thread Maarten Vermeulen
I looked at int 15h lately, int 15h is not supported on older BIOS versions but every BIOS has it in the time called now. :) Error code 86h means "function not supported" and if you get 80h it means "invalid command" Op woensdag 20 juli 2016 heeft Eric Auer het volgende geschreven: > > Hi exp

[Freedos-devel] making himemx and jemmex more foolproof on old bios versions

2016-07-20 Thread Eric Auer
Hi experts, some interesting observations about an old 486 PC in the thread with Dimitris about "Which freedos on 486" on freedos-user... His BIOS answers with AH=86h, carry=UNCHANGED to int 15.e801, also leaving AL unchanged. So it seems to be a good idea to STC before INT 15 when doing the 15.