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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: Making Lemonade (Floating-point format changes)
Date: Tue, 11 Jun 2024 05:58:21 -0000 (UTC)
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On Mon, 10 Jun 2024 11:20:14 +0300, Niklas Holsti wrote:

> You can also do it the other way around: always compile a function call,
> but on a machine that has an FPU use a dummy emulation library that
> back-patches the call to become an FPU instruction, so that each
> emulation function is called at most once.
> 
> To be honest, I'm not sure which way around the HP 2100 used.

Hmm, maybe that was the way round it was done on the Mac as well, and I am 
misremembering.