| Re: [hatari-devel] Correct cycles values? |
[ Thread Index |
Date Index
| More lists.tuxfamily.org/hatari-devel Archives
]
Hi,
On perjantai 15 maaliskuu 2013, Nicolas Pomarède wrote:
> On 14/03/2013 23:55, Eero Tamminen wrote:
>> On torstai 14 maaliskuu 2013, Nicolas Pomarède wrote:
>>> Le 14/03/2013 11:01, Eero Tamminen a écrit :
>>>> Shouldn't the cycles shown in profile disassembly then be:
>>>> cycles<< nCpuFreqShift
>>>> ?
>>> Yes, if you want to display cycles in a human readable way,
>>> nCpuFreqShift should betaken into account.
....
> Some of these times are similar to the 68000's ones (nop=4, lea=8), so I
> guess the rest is correct (else there would be a factor 2 or 4
> everywhere which would be definitly wrong)
Ok, what about TAS and MOVE.W instructions, can they take several
hundred cycles?
WARNING: cycles 272 > 256:
$e12bc6 : move.w d7,(a5) 0.00% (14, 3536, 5)
WARNING: cycles 284 > 256:
$e12bcc : tas (a5) 0.00% (66, 14804, 0)
WARNING: cycles 284 > 256:
$e12bcc : tas (a5) 0.00% (67, 15088, 0)
WARNING: cycles 284 > 256:
$e12bcc : tas (a5) 0.00% (68, 15372, 0)
WARNING: cycles 272 > 256:
$e12bc6 : move.w d7,(a5) 0.00% (15, 3808, 6)
WARNING: cycles 284 > 256:
$e12bcc : tas (a5) 0.00% (70, 15676, 0)
The context for these instructions is:
$e12bbe : addx.w d6,d6 0.00% (1, 4, 1)
$e12bc0 : move.b $be(a6,d6.w),$ffff(a5) 0.00% (1, 16, 0)
$e12bc6 : move.w d7,(a5) 0.00% (1, 272, 1)
$e12bc8 : adda.w a2,a0 0.00% (1, 4, 0)
$e12bca : adda.w a3,a1 0.00% (1, 8, 1)
$e12bcc : tas (a5) 0.00% (17, 4340, 0)
$e12bce : nop 0.00% (17, 68, 1)
- Eero