I took a program that I am developing on a A1000 with 2MB external RAM down to
run on my dealers A2000. The program ran noticeably slower on the A2000. The
A2000 has 1MB with the 2MB Commodore RAM expansion. The program flips thru
640x400x4 images stored on the ram disk. I know little about the A2000, but
here is my guess what may be happening. I understand the 2nd 512K of ram is
FAST/SLOW ram, that is, it is slowed when a 640x400x4 image is displayed. It
appears the program is loaded into this memory, thus slowing execution when a
640x400x4 image is displayed. If this is true, how can I get the code to load
into FAST ram and not FAST/SLOW? The program is written in Aztec C.
Mike,
The 2000 comes with a new program called SlowMemLast. Run this before
running your program and it will cause the fast memory to be allocated before
the half-fast memory.
..Bob