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General Internet News / Re: PSPUAE
« Last post by F0LLETT on March 30, 2026, 12:31:05 PM »Update;
Blitter on ME is deadend. Spent 2 days trying to get it to run faster, no joy.
So reverted it back to Main CPU.
So far everything I have tried, has not yielded much in speed increase.
Tried;
Memory fast paths for blitter,
re-writing blitter (that sucked, over 10 hours),
Lots of CPU optimisation, got some speed up, as CPU now never asks if events are done all the time.
As well as all other stuff in change log.
Only thing that has given 3 to 6 FPS, is moving Paula to ME.
There is still some more Paula stuff I need to move. Tried yesterday, code is working, just no sound at moment.
Got another 2 to 3 FPS, so I know that route is a good one. Will stick at it.
Still have have JIT up my sleeve. Will get audio out of way first.
After that, I think I have explored every avenue to squeeze speed out of it.
I could maybe try making some stuff independant, so takes load off Main CPU.
Maybe Floppy, as floppy accesses kill cpu while in operation and CPU struggles to keep up.
Blitter on ME is deadend. Spent 2 days trying to get it to run faster, no joy.
So reverted it back to Main CPU.
So far everything I have tried, has not yielded much in speed increase.
Tried;
Memory fast paths for blitter,
re-writing blitter (that sucked, over 10 hours),
Lots of CPU optimisation, got some speed up, as CPU now never asks if events are done all the time.
As well as all other stuff in change log.
Only thing that has given 3 to 6 FPS, is moving Paula to ME.
There is still some more Paula stuff I need to move. Tried yesterday, code is working, just no sound at moment.
Got another 2 to 3 FPS, so I know that route is a good one. Will stick at it.
Still have have JIT up my sleeve. Will get audio out of way first.
After that, I think I have explored every avenue to squeeze speed out of it.
I could maybe try making some stuff independant, so takes load off Main CPU.
Maybe Floppy, as floppy accesses kill cpu while in operation and CPU struggles to keep up.
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