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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: Article on new mainframe use
Date: Mon, 2 Sep 2024 03:28:52 -0000 (UTC)
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On Sun, 1 Sep 2024 00:52:34 +0000, MitchAlsup1 wrote:

> Imagine trying to fit LLVM or GCC into a PDP/11 address space.

Pretty much from the moment the PDP-11 range was introduced, it was 
obvious the 16-bit address space was going to be a significant limitation.

The main OS I was familiar with on those machines was RSTS/E. In its later 
versions it introduced some wondrous hacks to try to increase the 
available address space for programs, making use of various features of 
the PDP-11 in ways they were never quite meant to be used.