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|    comp.lang.asm.x86    |    Ahh, the lost art of x86 assembly    |    4,675 messages    |
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|    Message 4,403 of 4,675    |
|    R.Wieser to All    |
|    Re: FPU (x87) code debugging.    |
|    08 Aug 21 16:00:47    |
      From: address@nospicedham.not.available              Wolfgang,              > you seem to work with 32 bit:              I am. Didn't think it would matter much.              > 0F AE 07 FXSAVE [edi]              I just tried that one, and it worked ! (got 288 bytes of data though, not       512) As a result I'm now thoroughly confused in regard to the mod, reg, r/m       encoding. I tried different ones, but only got crashes.              > you used 27, so I were confused and had you look at my AMD docs,              That value was suggested by Robert (in his code). And as I didn't get       anywhere ...                     Oh blimy - I don't know how I did it, but I just noticed that I somehow       mixed up the 16 and 32-bit mod/reg/rm encodings. With the MOD and REG both       being zero the by R/M targetted registers are rather different between them.       :-|              Bottom line: I made a stupid mistake, created non-working code and got       myself confused as a result. And as I presumptiously forgot to mention the       basics of what I was busy with (32-bit coding) I did really help you guys       find the cause of it. My apologies for that.              Regards,       Rudy Wieser              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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