How to convert a qword negative integer

[RuiLoureiro]

Hi all
i dont remember this now
How to convert a qword EDX:EAX to a positive qword EDX:EAX ?
Thanks  :t
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[nidud]

deleted

[RuiLoureiro]

Code Select Expand


   neg   eax
   neg   edx
   sbb   edx,0


Hi, thanks nidud  :t

[Mikl__]

Olá, Rui!
AB.CDh=-(54.33h)
AB.80h=-(54.80h)
AB.4Fh=-(54.B1h)
AB.01h=-(54.FFh)
AB.00h=-(55.00h)

Code Select Expand

      not edx
      neg eax
      jnz exit
      inc edx
exit: ...NEG and Flags Affected

The CF flag set to 0 if the source operand is 0; otherwise it is set to 1. The OF, SF, ZF, AF, and PF flags are set according to the result.

Code Select Expand

not edx
neg eax
adc edx,0na decisão de nidud trocar as primeira e segunda linhas

Code Select Expand

neg edx
neg eax
sbb edx,0

[RuiLoureiro]

Olá Mikl__
Obrigado pela tua colaboração.
Então a solução do nidud não deve estar correcta, não é ?
Em todo o caso eu já não vou precisar disso.
Thank you so much, my friend Mkl__  :t

I am working in a new set of procedures
to implement a new way to do derivatives (and not only).
But it needs a lot of work.
The starting point is this: we have only 3 types
of expressions and 3 types of numeric constants:
integer- 3, -(50/5), 0.025E3
real- 2.3, -1.45e-5, ...
and rational- (-2/3), (4/5), (7/5), ...
And we have also literal constants(a,b,c,d...), pi and 'e'.
Solving an expression is to do a loop until the end
and solving each type (only 3). Of course the starting
result is a null string and each particular result
is added to that string. Till now, it works.
Até breve !
Good luck
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