Getting millisecond elapsed time using Bebbo's Amiga GCC toolchain

[Karlos]

EClock has the greatest precision but the accuracy depends on interrupts being serviced promptly, as I discovered when trying to benchmark raw Akiko performance under various conditions. The results under Disable() were bonkers because overflows in the counters were not bring handled.

[bebbo]

Originally Posted by alkis

This broke 1.3 support, I think.
I get crash on a program that used to work fine. (uses clock)

ReadEClock does not exist on 1.3


Using DateStamp intead which has a resolution of 20ms.
So I made up some pseudo millis using vhposr.

[alkis]

Originally Posted by bebbo

ReadEClock does not exist on 1.3


Using DateStamp intead which has a resolution of 20ms.
So I made up some pseudo millis using vhposr.

That wouldn't work on vamos. Heh, I managed to pull a version before the raster "enhancement".

On a more serious note though, I don't think the logic holds. 100 raster lines are not 100ms.

[bebbo]

Originally Posted by alkis

That wouldn't work on vamos. Heh, I managed to pull a version before the raster "enhancement".

On a more serious note though, I don't think the logic holds. 100 raster lines are not 100ms.

It is working on my vamos!

vamos clock
404 404 405 405 405 405 405 405 405 405 405 406 406 406 406 406 406 407 407 407

EDIT:
And the tick resolution is 20ms, so I have to make up 19ms inbetween.
It looks also ok in WinUAE.