Re: Modern compilers for ye olde architectures

Derek Jones <derek@NOSPAM-knosof.co.uk>
Wed, 6 Oct 2021 01:26:55 +0100

          From comp.compilers

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From: Derek Jones <derek@NOSPAM-knosof.co.uk>
Newsgroups: comp.compilers
Date: Wed, 6 Oct 2021 01:26:55 +0100
Organization: Compilers Central
References: 21-10-007
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="31800"; mail-complaints-to="abuse@iecc.com"
Keywords: architecture, history, comment
Posted-Date: 05 Oct 2021 21:34:49 EDT
In-Reply-To: 21-10-007
Content-Language: en-US

Luke,


> Z80.  I was wondering if modern backend techniques can be applied
> successfully for these old CPU's, i.e. SSA.


Modern, as in invented in 1988.


Modern, as in post-1985 techniques require lots of memory.
So they are not of any use if you plan to host your compiler
on a Z80, otherwise your next problem is mapping techniques
that are designed to work well with orthogonal architectures
(which the Z80 is certainly not).
[I believe the plan is to cross-compile with Z80 as the target. -John]


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