cliffhanger@cup.portal.com (Cliff C Heyer) (07/22/90)
I have the Phoenix "System BIOS" books and they are no help, because what the suggest causes a crash on certain XT BIOSes. Does anyone know a way to check a BIOS int 16h to see if it can handle the extended keyboard? Some XT BIOSes crash if you try a Fcn 10h on them to test if the extended keyboard exists. I thought the BIOS was written so that if an interrupt contains an invalid function code the BIOS does nothing and returns. But in this case it seems to crash.....I thought I could try a 10h and if it returned nothing I could try a 00h standard XT read. Please mail & I'll post, Cliff