Re: The C Stack in interpreters - why?

Marko =?ISO-8859-1?Q?M=E4kel=E4?= <Marko.Makela@HUT.FI>
14 May 2005 16:56:55 -0400

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From: Marko =?ISO-8859-1?Q?M=E4kel=E4?= <Marko.Makela@HUT.FI>
Newsgroups: comp.compilers
Date: 14 May 2005 16:56:55 -0400
Organization: Helsinki University of Technology, Finland
References: 05-05-072 05-05-073 05-05-084
Keywords: hardware, history

John> Are there really systems with a hardware stack that C doesn't use?
John> I've never seen one.


The 6502 has only 256 bytes of stack. The CC65 compiler
(http://www.cc65.org/) uses a separate parameter stack in order to
save the precious hardware stack space for return addresses. The
compiler also has to emulate 16-bit registers using zero page memory
locations.


Now you have seen one. :-)


Marko
[Oh, right. How 'bout if I say I never saw a C compiler pass up the
opportunity to use a usable hardware stack. -John]



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