I am writing a library which allow me to save the screen out to the heap and
then restore the screen later. I have a pointer to an array of 4000 words i.e.
video_array *video_ptr, which is initialized to b800 via
video_ptr=(video_array *)b800; and this works since I get b800 when I
printf
video_ptr as a pointer. 

I also have the heap pointer of type void * i.e. buffer.ptr. The save
procedure has the statement ptr=memmove(buffer.ptr,video_ptr,size) while
the restore procedure has the statement
ptr=memmove(video_ptr,buffer.ptr,size);
In both cases ptr aquires the value of the destination pointer, proven by
printf'ing the destination pointer and ptr. But after I call the restore
procedure the screen, which I saved, is not placed in video RAM and I do
not see the original screen.

Why wont the memmove, or movmem, function work?

--- Maximus/2 2.01wb