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