Re: [hatari-devel] Instruction cache misses and CPU cycles

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On 15 February 2013 21:45, Eero Tamminen <oak@xxxxxxxxxxxxxx> wrote:
Hi,

Does this look even remotely right:
---------
> d 0xe2f044
$e2f044 : 3f00            move.w    d0,-(sp)  0.31% (43303, 173268, 43303)
$e2f046 : 4eb9 00e2 fe7e  jsr       $e2fe7e   0.31% (43303, 433172, 0)
$e2f04c : 548f            addq.l    #2,sp     0.31% (43303, 34, 86597)
$e2f04e : 4a80            tst.l     d0        0.31% (43303, 86692, 28)
$e2f050 : 674a            beq.s     $e2f09c   0.31% (43303, 86666, 43299)
---------
?

There can't be fewer total cycles than visits so something is wrong there. However it's hard to tell from one instance if it's some sort of off-by-one problem or more complicated. Would need to watch what happens at lots of sites, and possibly on the first few visits to each affected site.

D.



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