On Fri, Feb 15, 2008 at 8:36 PM, Micha Nelissen <[EMAIL PROTECTED]> wrote: > ik wrote: > > Actually the assembler is not that hard to understand :) > > My point is, that I don't like the idea of 7 or 20 or 100 amount of > > parameters to give answer to every need. I think we should find a > > better way to implement it, like var args in C or open array in > > pascal... > > The linux kernel interface is always using registers, and since there > are a limited amount of registers, there is a max. number of arguments. > IIRC the maximum is 6, i386 limited: eax, ebx, ecx, edx, esi, edi, ebp.
You are welcome to correct me if I wrong, but can't I use prameters as follows: push param1 push param2 push param3 .... push paramX call syscall ? If so, then I don't think there is a specific need for using the eax, ebx registers etc.. Please look at the C deceleration of the syscall: int syscall(int number, ...); It uses var_args, and therefor 6 registers are not enough imho... because tomorrow some one can add new call with 10 params, and then what ? I can't find any documentation that limit the amount of parameters that can be given to the function (at least in Linux, maybe POSIX/BSD/Solaris/Other have different rules) > Micha Ido -- http://ik.homelinux.org/ _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
