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SubjectRe: Sound Emulation - is this possible? Reply to this message
Posted bysellenoff
Posted on10/31/04 00:50 AM

Yes, i'm sure the core could use some optimization! :)

Tell me more about what you mean about having to wait for ram access in relation to what I might be doing wrong... ie, are you saying my instructions need to eat more cycles? To be honest, I'm a bit confused in general about the timing on the Arm7 especially with all the pipelining stuff, so I wasn't quite sure how to code the instruction cycles.

If I run the cpu slower, but keep the IRQ the same, the output is distorted, probably since (i'm guessing) the cpu cannot fill the output buffer fast enough.

> you might be runnning too many instructions anyway, cpu's with data/instruction
> caches can't always run full speed as they have to wait for ram accesses.
> clocking the cpu down but running the timer at the right speed might be enough.
> It sounds like your cpu core could do with being optimised a bit though.
> smf

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Subject  Posted byPosted On
*Sound Emulation - is this possible?  sellenoff10/25/04 05:59 PM
.*Re: Sound Emulation - is this possible?  smf10/26/04 09:05 AM
...Re: Sound Emulation - is this possible?  sellenoff10/31/04 00:50 AM
...*Re: Sound Emulation - is this possible?  smf10/31/04 04:45 AM