Path: csiph.com!weretis.net!feeder6.news.weretis.net!news.misty.com!news.iecc.com!.POSTED.news.iecc.com!nerds-end From: Derek Jones Newsgroups: comp.compilers Subject: Re: Modern compilers for ye olde architectures Date: Wed, 6 Oct 2021 01:26:55 +0100 Organization: Compilers Central Lines: 13 Sender: news@iecc.com Approved: comp.compilers@iecc.com Message-ID: <21-10-010@comp.compilers> References: <21-10-007@comp.compilers> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit 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 X-submission-address: compilers@iecc.com X-moderator-address: compilers-request@iecc.com X-FAQ-and-archives: http://compilers.iecc.com In-Reply-To: <21-10-007@comp.compilers> Content-Language: en-US Xref: csiph.com comp.compilers:2718 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]