Re: [MiNT] Daily freemint kernel builds

[Paul Wratt <paul.wratt@gmail.com>]

2010/1/16 Mark Duckworth <mduckworth@atari-source.org>:
> On 1/16/10 7:34 AM, Lars Schmidbauer wrote:
>>
>> Hm, $fptest shows (no matter what CPU speed):
>>
>> rounding is double, result = 0x640006, expected result = 0x640005
>> rounding is float, result = 0x640006, expected result = 0x640005
>>
>> ????
>>
>> BENCH.TOS 66 Mhz: 0.810 seconds
>>           90 MHz: 0.620 seconds
>>          100 MHz: 0.565 seconds
>>
>> FPUTEST.TOS pass until ~100000 without problems at 66 and 90 Mhz, then i
>> stopped it manually. At 100 MHz, errors are shown right from the start.
>> How long shall i run FPUTEST.TOS?
>>
>> One more: The first block seems always to be compressed correct (at
>>           90 and 100 MHz):
>>
>> bzip2 -vv /h/ozk-15012010.tar
>>   /h/ozk-15012010.tar:
>>     block 1: crc = 0x820d2ecd, combined CRC = 0x820d2ecd, size = 899981
>>
>> bzip2/libbzip2: internal error number 1007.
>> ...
>>
>>
>> Again, thank you all. Perhaps i'll test some other SDRAM. But now i look
>> how the builds are working on my Falcon.
>>
>> Lars
>>
>
> That rounding issue happens on mine at any speed.  The fact that you get
> errors on the lengthy test at 100MHz immediately suggests that your system
> is not healthy at 100MHz.  Sorry but you have to crank it down.  It's
> interesting that certain parts of your system are working and certain parts
> aren't.  I suspect only certain opcodes are giving a bad result so you can
> boot and run the system but certain math functions die.
>
> Thanks,
> Mark
>
Out of interest, is there a way to compile for 060 that does not use FPU?

BTW, the others who have problems at higher speeds, can it be isolated
to the FPU?

Paul