On 9/28/2015 9:31 AM, Marlon Ng wrote: > Sorry for the late response guys. Hope you'll be patient with me as I > am not as skilled as you are. > > "So if you have a program that works only with LPT1 (and not with a hard > coded base port address!) will use what ever address is put into > 0040:0008. You can change that address to match what your expansion card > is using either by using debug (-e 0040:0008) or one of the many port > changing programs that used to be around for just that purpose..." > > How exactly do I do that? Ok, for some spoon feeding, here's a short debug session
C:\>debug -d 40:8 f 0040:0000 -78 03 78 02 BC 03 00 00 x.x..... -e 40:8 0040:0008 78.78 03.02 78.78 02.03 BC. -d 40:8 f 0040:0000 -78 02 78 03 BC 03 00 00 x.x..... -q C:\> the first "d 40:8 f" line shows the currently installed/assigned parallel ports LPT1-LPT3 (this is actually a vDOS session), with the base port address 0378h, 0278h and 03BCh respectively, then using the edit command "e 40:8", I entered the first 4 bytes and actually reversed the assignments of LPT1 and LPT2 so that the second "d 40:8 f" line shows now the base addresses 0278h, 0378h and 03BCh for LPT1, LPT2 and LPT3... anything but rocket science... Ralf --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------------------------------------------------------ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
