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SPEED.TXT
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1998-01-11
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921b
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29 lines
Speed measurement:
------------------
Set up your H: device properly first (-configure).
Start emulator with Atari BASIC (-config ataribas.cfg).
Enter the following command under the READY prompt in BASIC:
ENTER "H:CIRCLE.LST"
then type RUN and press return - and watch your watches to see how long
it takes to draw a circle.
CIRCLE.LST GR.8 Atari800 0.8.2 assembler CPU
----------------------------------------------------
full refresh 161 seconds 142 seconds
interlace 1/10 133 seconds 116 seconds
refresh 1/10 54 seconds 43 seconds
real rate 1/100 50 seconds 40 seconds
Unfortunately I don't remember the time needed on original Atari 800XL.
Anyway, the results show that ANTIC emulation is the most expensive
part of emulation time. I am going to improve it by rewritting to
assembler.
Petr
stehlik@cas3.zlin.vutbr.cz