CompuServe Messages

Actually, (I may be wrong on this, not having the A3000 specs) I would expect you could copy to Chip ram possibly as much as *four* times faster on an A3000 in Hires 4 bitplane mode, which is what we're talking about. The reasoning goes this way: The A3000 has 32 bit wide Chip ram. Thus, both the Custom Chips *and* the 68030 is accessing it in chunks twice as large as an A2000. This not only means the 68030 can do things twice as fast, but also means the Custom Chips will be reading their data twice as fast, thus eliminating a lot of the extra contention which you get in Hires 4 bitplane mode (maybe even all of it). Since this results in a loss of about 50% of the available chip ram cycles on an A2000, take that extra 50% for processor access as well, you get roughly a 4 times improvement on speed. Given that, it seems probable that you could transfer upwards of 1 Megabyte into chip ram per second using the 68030, which would be roughly your 15 fps. Now all you need is a program which plays an anim *that* way. <grin> –>Steve Bennett