TinyC, port to HP

From: Bob Shannon <bshannon_at_tiac.net>
Date: Fri Oct 17 16:24:42 2003

HP 21MX series CPU's do have index registers, but they are best left unused!

Standard HP instructions can perform the same operations FASTER than the
absurdly slow
X and Y index register functions.

Tony Duell wrote:

>>>C requires a stack pointer and a index register.Offhand I don't think
>>>your hardware supports that.
>>>
>>Certain HP2xxx do have index registers (the ones with the EIG instructions
>>IIRC), but guess how FORTRAN compilers handle indexed array accesses
>>
>
>Err, self-modifying code? That was the traditional way to do this sort of
>thing.
>
>-tony
>
>
Received on Fri Oct 17 2003 - 16:24:42 BST