Hello,
In this case
procedure nx_fill(P: PLongword; Count: Longint; Value: Longword); assembler; asm pushl %edi movl P,%edi // edi <- P movl Value,%eax // eax <- Value movl Count,%ecx // ecx <- Count rep stosl popl %edi end;
works both as embedded and non-embedded assembler procedure because the order of assignments is ok in both cases.
Yes, but this way a program becomes a mineland. You write this, a few weeks later, for some reason, you change the line order, and you waste time to find why, suddenly, your program crashes (and yet, assuming you
immediately activate the bug).
:( That's true.
I usually add a 'pascal' procedure modifier to most (if not all) assembler routines exactly because of that. This forces parameter passing on the stack.
This is a little slower, but if your hand-coded assembler proc is only faster if the parameters are passed through registers, it might be a good idea to use Pascal right away...
Regards, Thomas
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