beyond k trident and lots more hi i have a few enquiries about pc s and compatibles in general some software others hardware orientated probably the wrong newsgroup as everyone claims anyway does any one happen to have the board jumper details for a trident svga graphics card mb or even what the dip switches do on the end mine already works fine albeit slow and after having blown up a monitor i found out which switch controlled the interlace non interlace facility but i m curious as to why there are dip switches on the card with apparantly little use secondly does anyone know why commodore had to be so crazed in their design of the pc motherboard with respect to the ram ie or k can anyone supply pin details for the expansion ports for a pc or bit or even a sample circuit to cause an irq when a button is pressed yeah i know its a piece of cake i m lazy software wise anyone care to divulge some tips on accessing expanded ram on a pc from a program written in turbo c for instance using farcoreleft and coreleft return only memory available from the base k regardless of combinations of emm etc etc what i want is to be able to use the ram above and beyond the mb boundary i m not certain whether farmalloc new actually uses it anyway but i ll suspect not also what half brained wit created dos so as not to be re entrant as a follow on does anyone have any comments about the use of dos calls to c from within a dos interrupt ie will changing the stack size on entry be of use two articles i ve read on the subject have given conflicting views does anyone have any views on writing direct to screen memory in terms of portability many thanks gotta go bars closing soon cheers ian
