mirror of
https://github.com/elliotnunn/mac-rom.git
synced 2024-06-09 15:29:29 +00:00
4325cdcc78
Resource forks are included only for .rsrc files. These are DeRezzed into their data fork. 'ckid' resources, from the Projector VCS, are not included. The Tools directory, containing mostly junk, is also excluded.
72 lines
1.7 KiB
Plaintext
72 lines
1.7 KiB
Plaintext
;
|
|
; File: XBSUN.a
|
|
;
|
|
; Contains: Routine to handle 'Branch/Set on UNordered exception
|
|
;
|
|
; Originally Written by: Motorola Inc.
|
|
; Adapted to Apple/MPW: Jon Okada
|
|
;
|
|
; Copyright: © 1990, 1991 by Apple Computer, Inc., all rights reserved.
|
|
;
|
|
; This file is used in these builds: Mac32
|
|
;
|
|
; Change History (most recent first):
|
|
;
|
|
; <2> 3/30/91 BG Rolling in Jon Okada's latest changes.
|
|
; <1> 12/14/90 BG First checked into TERROR/BBS.
|
|
|
|
; xbsun.a
|
|
|
|
; Based upon Motorola file 'x_bsun.sa'
|
|
|
|
; CHANGE LOG:
|
|
; 08 Jan 91 JPO Inserted label 'bsun' at top of code. Modified
|
|
; code to branch to user handler.
|
|
;
|
|
|
|
*
|
|
* x_bsun.sa 3.1 12/10/90
|
|
*
|
|
* fpsp_bsun --- FPSP handler for branch/set on unordered exception
|
|
*
|
|
* Copy the PC to FPIAR to maintain 881/882 compatability
|
|
*
|
|
* The real_bsun handler will need to perform further corrective
|
|
* measures as outlined in the 040 User's Manual on pages
|
|
* 9-41f, section 9.8.3.
|
|
*
|
|
|
|
* Copyright (C) Motorola, Inc. 1990
|
|
* All Rights Reserved
|
|
*
|
|
* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF MOTOROLA
|
|
* The copyright notice above does not evidence any
|
|
* actual or intended publication of such source code.
|
|
|
|
* X_BSUN IDNT 2,1 Motorola 040 Floating Point Software Package
|
|
|
|
|
|
bsun: ; <1/8/91, JPO>
|
|
fpsp_bsun:
|
|
*
|
|
link a6,#-LOCAL_SIZE
|
|
fsave -(a7)
|
|
movem.l d0-d1/a0-a1,USER_DA(a6)
|
|
fmovem.x fp0-fp3,USER_FP0(a6)
|
|
fmovem.l fpcr/fpsr/fpiar,USER_FPCR(a6)
|
|
*
|
|
move.l EXC_PC(a6),USER_FPIAR(a6)
|
|
*
|
|
movem.l USER_DA(a6),d0-d1/a0-a1
|
|
fmovem.x USER_FP0(a6),fp0-fp3
|
|
fmovem.l USER_FPCR(a6),fpcr/fpsr/fpiar
|
|
frestore (a7)+
|
|
unlk a6
|
|
|
|
; bra.l real_bsun ; deleted <1/8/91, JPO>
|
|
|
|
move.l (FPBSUN_VEC040).W,-(sp) ; push vector to user's handler <1/8/91, JPO>
|
|
rts ; execute user's handler <1/8/91, JPO>
|
|
*
|
|
|