[fpc-pascal]Var parameter passing to asm procedure
Nelson M. Sicuro
nelson at desktopsistemas.com.br
Thu Aug 5 18:28:25 CEST 2004
Ok, then this can be this way:
procedure increment(var x: dword); assembler;
asm
mov eax, x
inc [eax]
end;
Is this correct? If the compiler uses registers, the first line is
translated to a 'mov eax, eax', otherwise it is something like 'mov eax,
[esp-4]'.
Regards,
Nelson
>> The asm block can be this way:
>>
>> procedure increment(var x: dword); assembler;
>> asm
>> inc [eax]
>> end;
>>
>> You don't need to worry about segment registers, but don't mess with
>> them!
>> I assume that the parameter x is passed on the eax register as Delphi
>> does.
>> Please correct me if I'm wrong...
>
> You are wrong.
>
> He is using 1.0.x, which doesn't have register parameters. That is 1.9.2
> or
> 1.9.4+
>
>
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