10-Dec-82 20:56:02-MST,2372;000000000011
Mail-from: ARPANET site RAND-RELAY rcvd at 10-Dec-82 2054-MST
Date: 10 Dec 1982 0733-PST
From: GRISS at HP-HULK
Subject: Glossary
To: jw-peterson at UTAH-20, Lowder at UTAH-20,
    utah-cs!lowder at HP-VENUS, GRISS@at@HP-labs, GRISS@RAND-RELAY@HP-labs
Via:  HP-Labs; 10 Dec 82 19:43-PDT

Some Terminology:
-----------------

ALM - Abstract LISP machine, ie, the CMACRO level, as emitted
      by compiler; the abstract architecture it repesents;
      LAP-like code that is essentially portable.


TLM - Target LISP machine; opcodes and registers in terms of target
      machine; LAP form that directly machine specific for resident
      LAP on target PSL; sometime assembly-code on target machine
      during bootstrap.
   

CROSS-COMPILER - Built on HOST RLISP, includes tables etc. to
      compile PSL source files (.SL and .RED) into TLM assembly code
      for target machine. Only needed when bootstrapping the PSL
      kernel (BARE-PSL) and the boot step for the resident compiler
      on the target (build of BIG-PSL)

BARE-PSL - The executable PSL on the target machine that most people
      expect to run. On all machines to date includes a complete
      interpreter, and FASLIN, so that  oher modules can be
      "loaded". This is the basic system that a stable environment
      keeps around. In a stable environment, RLISP.B, COMPILER.B etc
      can be loaded. Some stable environmenst may load commonly
      use modules, and core-save and announce this saved image
      as the standard PSL or RLISP, which does give some confusion.
	
      [It should NOT normally include RLISP, though I imagine RLISP 
       may have been built in "for convenience"; which causes
       confusion]

BIG-PSL (or FULL-PSL) - This is a step required in bootstrapping.
     After BARE=PSL seems to run well (and cant FASL yet, since no .B
     files should really exist), additional files (RLISP and COMP)
     are included in a cross compile; these augment the kernel to
     give a system capable of building .B files. 

     [I repeat, this is not the desired way of maintaining a PSL with 
      RLISP and COMPILER, but is a bootstrap step for COMPILER.B.
      The desired maintenance model is to keep a BARE-PSL around
      and LOAD RLISP, COMPILER, etc. and then core-save if space permits]

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11-Dec-82 20:56:20-MST,3002;000000000011
Mail-from: ARPANET site RAND-RELAY rcvd at 11-Dec-82 2055-MST
Date: 11 Dec 1982 0757-PST
From: GRISS.HP-HULK at Rand-Relay
Subject: New Gloaasry
To: jw-peterson at Utah-20
Via:  HP-Labs; 11 Dec 82 19:37-PDT

@section(GLOSSARY - Some Common Terminology)

The following terms are defined and used in the body of the
IMPLEMENTATION Guide (and the Maintenance Guide? as well). We collect
a concise definition here:

@begin(description)

ALM@\Abstract LISP machine, ie, the CMACRO level, as emitted
by compiler; the abstract architecture it repesents;
LAP-like code that is essentially portable.


TLM@\Target LISP machine; opcodes and registers in terms of target
machine; LAP-like form that is machine specific for resident LAP on
target PSL; some times used to refer to assembly-code on target
machine during bootstrap.
  

CROSS-COMPILER@\Built on HOST RLISP, includes tables etc. to
compile PSL source files (.SL and .RED) into TLM assembly code
for target machine. Only needed when bootstrapping the PSL
kernel (BARE-PSL) and the boot step for the resident compiler
on the target (build of BIG-PSL)

Executable BARE-PSL@\The executable PSL kernel on the target machine
produced by the first stage kernel bootstrap.  On all machines to date
includes a complete interpreter, and FASLIN, so that oher modules can
be "loaded" and often a core-save. This is the basic system that a
stable environment keeps around as well as a "executable PSL". In a
stable environment, RLISP.B, COMPILER.B etc can be loaded.  This
should NOT normally include RLISP, though I imagine RLISP may have
been built in "for convenience"; which causes confusion.

Executable PSL@\Some stable environments may load commonly used
modules into "executable BARE-PSL", and core-save and announce this
saved image as the standard PSL. (Some people confuse this with
"bare-PSL").

Executable RLISP@\In most stable environments, RLISP.B and COMPILER.B
are loaded into executable PSL and core-saved.

Executable BIG-PSL@\This is a target executable system required in
bootstrapping.  After BARE-PSL seems to run well (but of course can
not FASL yet, since no .B files should really exist), additional
modules (RLISP and COMP) are included in a cross compile; these
augment the kernel to give a system capable of building .B files. This
is used to build RLISP.B, COMPILER.B, FASLOUT.B, LAP.B etc., which can
then be used with the executable BARE-PSL. This is not kept around to
maintaining a stable PSL with RLISP and COMPILER, but is only a
bootstrap step to build COMPILER.B.  BIG-PSL is built when going to a
new version.  The stable maintenance model is to keep a BARE-PSL
around and LOAD RLISP, COMPILER, etc. and then core-save if space
permits.
@end(description)



----
My suggestion is to APE HP very closely . It is PORT from 20 to 68000, and
works. The HP system now runs well, maybe even better than Apollo. We must
be doing something right...

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