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| From | Walter Banks <walter@bytecraft.com> |
| Newsgroups | comp.compilers |
| Subject | Re: 8-bit processor specific techniques |
| Date | Mon, 28 Sep 2015 11:04:28 -0400 |
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On 27/09/2015 10:30 AM, lucretia9@lycos.co.uk wrote: > I've been looking around for anything related to compiler development for > 8-bit processors. ... > [There are plenty of compilers for 8 bit machines, particulary at > retrocomputing sites, but I don't recall a lot of interesting code > generation stuff. They tend to have so few registers and be so > irregular that little of the optimization stuff intended for code > generation applies. -John] John, you actually have identified the source for a lot of code generation technology used in 8 bit compilers. There is a wealth of material in some of the compilers that is used to map processors with unusual instruction sets on to C. Unfortunately most of this material has never been published and hasn't been the focus of research projects. The techniques used mostly show up in application specific ISA's. This is the type of processor whose applications tend not to be hosted and are small enough that compilers can be exhaustive and often have tight execution requirements. A couple starting places for this type of compiler. Once parsed implement a strategy pass to map out application implementation approachs this time. Seriously consider dispensing with linkers for this type of compiler, their original purpose was to allow separately compiled modules and combine them later, in this type of compiler cross compiling a whole application is both possible and appropriate. w.. [Agreed about the linker bit. These days, in the tool sets for embedded processors the object files that the compilers create are really just an intermediate code, and the linker does a global optimization pass over the whole program and only then generates the machine code. -John]
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8-bit processor specific techniques "lucretia9@lycos.co.uk" <laguest9000@googlemail.com> - 2015-09-27 07:30 -0700
Re: 8-bit processor specific techniques for Ada Luke A. Guest <laguest@archeia.com> - 2015-09-27 23:04 +0100
Re: 8-bit processor specific techniques BGB <cr88192@hotmail.com> - 2015-09-27 17:34 -0500
Re: 8-bit processor specific techniques Walter Banks <walter@bytecraft.com> - 2015-09-28 11:04 -0400
Re: 8-bit processor specific techniques "lucretia9@lycos.co.uk" <laguest9000@googlemail.com> - 2015-09-29 10:55 -0700
Re: 8-bit processor specific techniques BGB <cr88192@hotmail.com> - 2015-09-29 20:06 -0500
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