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Is VIO 16 bit in OS/2?

Posted: Fri Dec 21, 2018 3:09 am
by admin

Joined: 29 Sep 2006
Posts: 44
Location: Sweden
Posted: Mon Dec 04, 2006 3:49 pm


I was wondering about what parts of OS/2 is still 16 bit code. The interface part to
applications. So is VIO 16 bit?

Posted: Fri Dec 21, 2018 3:10 am
by admin

Joined: 03 Apr 2005
Posts: 50
Location: Elizovo, Kamchatka, Russia
Posted: Tue Dec 05, 2006 2:01 am

2Viking: Yes, VIO, MOU and KBD calls in OS/2 (intel) are 16-bit. So, there is some problem to implement
these API's as is in osFree over L4 microkernel. OS/2 (PPC) introduced 32-bit VIO API, so, osFree probably
must do the same. The question remains how to make osFree compatible with old applications using 16-bit
API's. May be, it is possible to do so via emulation (?). It seems that 16-bit code doesn't work in 32-bit L4
environment, only pure 32-bit code.
Valery V. Sedletski