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1da177e4 LT |
1 | | |
2 | | x_bsun.sa 3.3 7/1/91 | |
3 | | | |
4 | | fpsp_bsun --- FPSP handler for branch/set on unordered exception | |
5 | | | |
6 | | Copy the PC to FPIAR to maintain 881/882 compatibility | |
7 | | | |
8 | | The real_bsun handler will need to perform further corrective | |
9 | | measures as outlined in the 040 User's Manual on pages | |
10 | | 9-41f, section 9.8.3. | |
11 | | | |
12 | ||
13 | | Copyright (C) Motorola, Inc. 1990 | |
14 | | All Rights Reserved | |
15 | | | |
e00d82d0 MW |
16 | | For details on the license for this file, please see the |
17 | | file, README, in this same directory. | |
1da177e4 LT |
18 | |
19 | X_BSUN: |idnt 2,1 | Motorola 040 Floating Point Software Package | |
20 | ||
21 | |section 8 | |
22 | ||
23 | #include "fpsp.h" | |
24 | ||
25 | |xref real_bsun | |
26 | ||
27 | .global fpsp_bsun | |
28 | fpsp_bsun: | |
29 | | | |
30 | link %a6,#-LOCAL_SIZE | |
31 | fsave -(%a7) | |
32 | moveml %d0-%d1/%a0-%a1,USER_DA(%a6) | |
33 | fmovemx %fp0-%fp3,USER_FP0(%a6) | |
34 | fmoveml %fpcr/%fpsr/%fpiar,USER_FPCR(%a6) | |
35 | ||
36 | | | |
37 | movel EXC_PC(%a6),USER_FPIAR(%a6) | |
38 | | | |
39 | moveml USER_DA(%a6),%d0-%d1/%a0-%a1 | |
40 | fmovemx USER_FP0(%a6),%fp0-%fp3 | |
41 | fmoveml USER_FPCR(%a6),%fpcr/%fpsr/%fpiar | |
42 | frestore (%a7)+ | |
43 | unlk %a6 | |
44 | bral real_bsun | |
45 | | | |
46 | |end |