lxdream 0.9.1| filename | test/sh4/div0.s |
| changeset | 364:d738f6883d4a |
| author | nkeynes |
| date | Fri Feb 08 00:06:56 2008 +0000 (16 years ago) |
| permissions | -rw-r--r-- |
| last change | Fix LDS/STS to FPUL/FPSCR to check the FPU disabled bit. Fixes the linux 2.4.0-test8 kernel boot (this wasn't exactly very well documented in the original manual) |
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1 .section .text
2 .include "sh4/inc.s"
3 !
4 ! Test DIV0 operation
5 !
6 .global _test_div0
7 _test_div0:
8 start_test
9 mov.l r11, @-r15
10 mov.l r10, @-r15
12 test_div0u:
13 add #1, r12
14 stc sr, r2
15 mov.l test_div0_sr_mask, r0
16 or r0, r2
17 ldc r2, sr
19 div0u
20 stc sr, r3
21 mov r3, r4
22 and r0, r4
23 tst r4, r4
24 bf test_div0u_fail
25 not r0, r0
26 and r0, r3
27 and r0, r2
28 cmp/eq r2, r3
29 bt test_div0s
30 test_div0u_fail:
31 fail test_div0_str_k
33 test_div0s:
34 mova test_div0s_data, r0
35 mov r0, r11
36 mov #4, r10
38 test_div0s_loop:
39 add #1, r12
40 mov.l @r11+, r1
41 mov.l @r11+, r2
42 mov.l @r11+, r3
43 div0s r1,r2
44 stc sr, r4
45 mov.l test_div0_sr_mask, r0
46 and r0,r4
47 cmp/eq r3,r4
48 bt test_div0s_ok
49 fail test_div0_str_k
50 test_div0s_ok:
51 dt r10
52 bf test_div0s_loop
54 test_div0_end:
55 mov.l @r15+, r10
56 mov.l @r15+, r11
57 end_test test_div0_str_k
59 test_div0s_data:
60 .long 0x01234567
61 .long 0x12345678
62 .long 0x00000000
63 .long 0xFFFF8912
64 .long 0x7ABC1526
65 .long 0x00000201
66 .long 0x55443322
67 .long 0x80000234
68 .long 0x00000101
69 .long 0xFFFFFFFF
70 .long 0x9CD39495
71 .long 0x00000300
73 test_div0_sr_mask:
74 .long 0x00000301
76 test_div0_str_k:
77 .long test_div0_str
78 test_div0_str:
79 .string "DIV0"
.