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|    comp.lang.asm.x86    |    Ahh, the lost art of x86 assembly    |    4,675 messages    |
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|    Message 4,412 of 4,675    |
|    R.Wieser to All    |
|    Re: FPU (x87) code debugging.    |
|    09 Aug 21 15:50:18    |
      From: address@nospicedham.not.available              Robert              >>> Well, please make sure the pointer is correct       >>       >> :-) And how do you propose that should be done ?       >> It sounds like a great idea, but ...       ...       > use MOV.              How would that change anything ? If the target for an FXSAVE is wrong       enough that it causes an exception, how /wouldn't/ that be in the same way       wrong for a MOV ? (lets forget about alignment for a moment)              It would even be making the problem larger, as you would than need to pick a       REG value too - and wonder if it perhaps is having a negative influence on       the result.              FWI, I tried several R/M values, none of which wanted to work. Bad luck I       guess.              In retrospect I should perhaps have tried loading all the common registers       with the same value and tried all R/M values until something worked. On       success it would be a case of determining which register is the source, and       than look back at the instruction set to find a match - and from it figure       out what the/my mistake was.              > Zero origin, power-of-two size. Check on both.       > Ever wonder why there are so many buffers this way?              No, never. Really ... |
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