🚀 go-pugleaf

rg@msel.unh.edu (Roger Gonzalez) writes:

> I'd like to directly manipulate the text video area via Turbo C.  I gather
> that it is located at B something or 8 something, depending on your adaptor.
> How do you do the memory access, though?  On a VMEbus based machine, all 
> you have to do is coerce a pointer to be the address, and then you can do
> stuff like overlay structures on the memory map.  

  Well, for TurboC, all you need to do is coerce a pointer to be the 
address, and then you can do stuff like overlay structures on the memory
map.

  Look in the manual under MK_FP. You will need to be in at least large
model (I think) to do this. 

> Is there any speed gain in doing C->addr manipulations rather than using
> Turbo's (a little too restrictive) routines, or do I have to learn Intel's
> assembler to really get anything out of it?

   You should be able to increase the speed a little. As always, if you 
want top speed, and can afford to invest the time, use assembler. 

> "The question of whether a computer can think is no more interesting
>  than the question of whether a submarine can swim" - Edsgar W. Dijkstra 

   But even more interesting, can computers swim and submarines think?
Yeth, thomtimeth they DO think.