@TCD
You're welcome!
@paraj
Quote:
Originally Posted by paraj
Looks neat on a real monitor and very distinct.
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Nice to hear! Thanks for the test and the report
Quote:
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Only getting around 16-20fps on my B1260/50Mhz though, slow chip mem access speed really hurts :/
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I'm baffled that its impact is such that the performance is worse than that of my Blizzard 1230 IV
That said, the FAST RAM -> CHIP RAM copy loop is fine-tuned for my card. I made tens of tests and tried the weirdest solutions, and eventually found out that the best code was this:
Code:
move.w #RASTERSIZE/(13*4)-1,d7
.CopyDots move.l (a6)+,d0
move.l (a6)+,d1
move.l (a6)+,d2
move.l (a6)+,d3
move.l (a6)+,d4
move.l (a6)+,d5
move.l (a6)+,d6
movea.l (a6)+,a0
movea.l (a6)+,a1
movea.l (a6)+,a2
movea.l (a6)+,a3
movea.l (a6)+,a4
movea.l (a6)+,a5
movem.l d0-d6/a0-a5,(a7)
adda.w #13*4,a7
dbf d7,.CopyDots
rept (RASTERSIZE//(13*4))/4
move.l (a6)+,(a7)+
endr
Maybe for your card (and 68060 cards in general?) it's best to replace movem.l with a sequence of move.l? Or use move16 or a mix of the various instructions?
Do you happen to know which is the best strategy?