Inter-compiler portability of asm between gdc and ldc2 (and dmd)

[Paulo Pinto]

On Saturday, 3 October 2020 at 09:52:56 UTC, Ola Fosheim Grøstad 
wrote:
> On Saturday, 3 October 2020 at 08:51:58 UTC, Paulo Pinto wrote:
>> It is also what I favour, the excuse those other compilers 
>> vendor give is that the clunky syntax they use is easier to 
>> integrate with the compiler backend for the optimiser's 
>> understanding of what is going on.
>
> Huh? How come?
>
> I think the only reason for this is that AT&T engineers had a 
> preference for PDP11 syntax which they were used to and that it 
> therefore became the default syntax on Unix and thus become 
> associated with C compilers...

The PC / Amiga way of

void myfunc (int data)
{
    asm {
      mov bx, data
      int 21h
    }
}

Versus the clunky way of

void myfunc (int data)
{
    asm("weird Assembly pseudo syntax", data);
}