Re: MPE Port

[Mark Klein <mklein@dis.com>]

Explanation:

Handle certain MPE nuances such as bcopy() not being able to do
overlapped moves. Invoke millicode instead of bcopy().

Sat Sep  4 18:00:00 PDT 1999 Mark Klein (mklein@dis.com)

        * pa/xm-pampeix.h: New file for the MPE port.

*** egcs/gcc/config/pa/xm-pampeix.h	Wed Dec 31 16:00:00 1969
--- egcs-ss/gcc/config/pa/xm-pampeix.h	Mon Aug 30 21:52:06 1999
***************
*** 0 ****
--- 1,109 ----
+ /* Configuration for GNU C-compiler for PA-RISC.
+    Copyright (C) 1998 Free Software Foundation, Inc.
+    Contributed by Mark Klein (mklein@dis.com)           
+ 
+ This file is part of GNU CC.
+ 
+ GNU CC is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+ 
+ GNU CC is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with GNU CC; see the file COPYING.  If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+ 
+ 
+ #ifndef _POSIX_SOURCE
+ #define _POSIX_SOURCE
+ #endif
+ 
+ #define USG
+ 
+ /* Use System V memory functions.  */
+ #ifndef _BCMP_DEFINED
+ #define _BCMP_DEFINED
+ #ifndef BSTRING
+ #define BSTRING
+ #endif
+ #if !defined(bcopy) && !defined(HAS_BCOPY)
+ inline static void
+ bcopy(const void *src,void *dst,int len) {
+ 	asm volatile (
+ 			".import $$lr_unk_unk,MILLICODE;	
+ 			copy %0, %%r26;
+ 			copy %1, %%r25;
+ 			bl $$lr_unk_unk,%%r31;
+ 			copy %2, %%r24"
+ 					:
+ 					: "r" (src),
+ 					  "r" (dst),
+ 					  "r" (len)
+ 					: "%r24",
+ 					  "%r25",
+ 					  "%r26",
+ 					  "%r31");
+ }
+ #endif
+ #if !defined(bzero) && !defined(HAS_BZERO)
+ #define bzero(a,b) memset (a,0,b)
+ #endif
+ #if !defined(bcmp) && !defined(HAS_BCMP)
+ #define bcmp(a,b,c) memcmp (a,b,c)
+ #endif
+ #endif
+ 
+ #if !defined(rindex) && !defined(HAS_RINDEX)
+ #define rindex strrchr
+ #endif
+ #if !defined(index) && !defined(HAS_INDEX)
+ #define index strchr
+ #endif
+ 
+ /* #defines that need visibility everywhere.  */
+ #define FALSE 0
+ #define TRUE 1
+ 
+ /* This describes the machine the compiler is hosted on.  */
+ #define HOST_BITS_PER_CHAR 8
+ #define HOST_BITS_PER_SHORT 16
+ #define HOST_BITS_PER_INT 32
+ #define HOST_BITS_PER_LONG 32
+ #define HOST_BITS_PER_LONGLONG 64
+ 
+ /* Doubles are stored in memory with the high order word first.  This
+    matters when cross-compiling.  */
+ #define HOST_WORDS_BIG_ENDIAN 1
+ 
+ /* Place any machine-dependent include files here, in case we
+    are bootstrapping.  */
+ 
+ /* target machine dependencies.
+    tm.h is a symbolic link to the actual target specific file.   */
+ #include "tm.h"
+ 
+ /* Arguments to use with `exit'.  */
+ #define SUCCESS_EXIT_CODE 0
+ #define FATAL_EXIT_CODE 33
+ 
+ /* Don't try to use sys_siglist.  */
+ #define NO_SYS_SIGLIST
+ 
+ /* HP's compiler has problems with enum bitfields.  */
+ #define ONLY_INT_FIELDS
+ 
+ #ifndef _MPEIX_SOURCE
+ #define _MPEIX_SOURCE
+ #endif
+ 
+ /* If not compiled with GNU C, use C alloca.  */
+ #ifndef __GNUC__
+ #define USE_C_ALLOCA
+ #endif
+ 
+ #define STARTFILE_SPEC		""

--
Mark Klein                                 DIS International, Ltd.
http://www.dis.com                         415-892-8400
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