🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.sys.dec
Article #138

VAX question

#138
From: dwagoner
Date: Sun, 26 Jul 1992 05:50
24 lines
1518 bytes

Can anyone explain the difference between P0 and P1 space on a VAX?
Text and initialized data segments (on BSD 4.3, at least) wind up 
in P0 space; unitialized data (i.e. stack) is  placed in P1 space.
The two regions are accessed using different base registers; P1 is
a bit tricky to work with in comparison to P0.

Explanations to this ignorant layman are appreciated...


					-- Dave Wagoner
					   System Janitor
					   Wright State University
					   Dayton(a), Ohio

===============================================================================
                                           /             wrt higher education:
                         _   /|           /
    "Ack Thippfft!"      \'o.O`      /~~~/  /| |  / /~~~  "That which does
                         =(___)=    /   /  /~| | / /~~~    not kill us
(Just more technobabble)    U      ~~~~~  ~  ~ ~~  ~~~     makes us stronger..."
                                     (System Janitor)
===============================================================================
Technical Details
Message-ID: <1992Jul26.015003.1@matrix.cs.wright.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!malgudi.oar.net!uoft02.utoledo.edu!desire.wright.edu!matrix.cs.wright.edu!dwagoner

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!malgudi.oar.net!uoft02.utoledo.edu!desire.wright.edu!matrix.cs.wright.edu!dwagoner
Newsgroups: comp.sys.dec
Subject: VAX question
Message-ID: <1992Jul26.015003.1@matrix.cs.wright.edu>
From: dwagoner@matrix.cs.wright.edu
Date: 26 Jul 92 01:50:03 EDT
Organization: Wright State University College of Engineering and Computer Science
Nntp-Posting-Host: matrix
Nntp-Posting-User: dwagoner
Lines: 24