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Snarf chopps changes for bus/addrerr handling.

This commit is contained in:
briggs 1994-09-12 03:37:33 +00:00
parent 71564b8859
commit 9dc2628062
1 changed files with 9 additions and 3 deletions
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12
sys/arch/mac68k/mac68k/locore.s
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@ -86,7 +86,7 @@
* from: Utah $Hdr: locore.s 1.58 91/04/22$ * from: Utah $Hdr: locore.s 1.58 91/04/22$
* *
* from: @(#)locore.s 7.11 (Berkeley) 5/9/91 * from: @(#)locore.s 7.11 (Berkeley) 5/9/91
* $Id: locore.s,v 1.25 1994/08/08 00:14:42 lkestel Exp $ * $Id: locore.s,v 1.26 1994/09/12 03:37:33 briggs Exp $
*/ */
#include "assym.s" #include "assym.s"
@ -177,10 +177,16 @@ _addrerr:
andw #0x0fff,d0 andw #0x0fff,d0
cmpw #12,d0 | is it address error cmpw #12,d0 | is it address error
jeq Lisaerr jeq Lisaerr
movl a1@(20),sp@(4) | get fault address movl a1@(20),d1 | get fault address
moveq #0,d0 moveq #0,d0
movw a1@(12),d0 | get SSW movw a1@(12),d0 | get SSW
movl d0,sp@ | pass as code btst #11,d0 | check for mis-aligned
jeq Lbe1stpg | no skip
addl #3,d1 | get into next page
andl #PG_FRAME,d1 | and truncate
Lbe1stpg:
movl d1,sp@(4) | pass fault address.
movl d0,sp@ | pass SSW as code
btst #10,d0 | test ATC btst #10,d0 | test ATC
jeq Lisberr | it's a bus error jeq Lisberr | it's a bus error
jra Lismerr jra Lismerr