Context Navigation

test.S @ 525

Last change on this file since 525 was 520, checked in by bouyer, 11 years ago
Re-add the tests; reverting previous which was done at the wrong level (sorry)
File size: 1.3 KB

Line
1	/*
2	* trap test: check that a trap in a delay slot is
3	* properly handled
4	*/
5	#include <registers.h>
6	#include <misc.h>
7
8	.text
9	.globl _start
10	_start:
11	.set noreorder
12	la k0, TTY_BASE
13	la k1, EXIT_BASE
14	la sp, 0x00400000 - 16
15
16	PRINT(startstr)
17
18	/* reset cop0 status (keep BEV), enable cop1 */
19	lui a0, 0x2040;
20	mtc0 a0, COP0_STATUS
21
22	la a0, div1
23	lwc1 $f2, 0(a0)
24	la a0, div2
25	lwc1 $f0, 0(a0)
26	j exit
27	div.s $f0, $f0, $f2
28	/* we should not get there, */
29	EXIT(2)
30	.globl exit
31	exit:
32	move a0, v0
33	PRINTX
34	PUTCHAR(' ')
35	move a0, v1
36	PRINTX
37	PUTCHAR('\n')
38	/* we should get there */
39	EXIT(0)
40
41	.globl excep
42	excep:
43	.set noreorder
44	PRINT(statusstr)
45	mfc0 a0, COP0_STATUS
46	PRINTX
47
48	PRINT(causestr)
49	mfc0 a0, COP0_CAUSE
50	PRINTX
51
52	PRINT(pcstr)
53	mfc0 a0, COP0_EXPC
54	PRINTX
55
56	PRINT(badvastr)
57	mfc0 a0, COP_0_BADVADDR
58	PRINTX
59	PUTCHAR('\n')
60	la a0, exit
61	mtc0 a0, COP0_EXPC
62	li v0, MAGIC1
63	li v1, MAGIC2
64	li a3, 1
65	eret
66	nop
67
68	#we should not end there
69	EXIT(1)
70
71	.rodata:
72	statusstr: .ascii "status \0"
73	causestr: .ascii " cause \0"
74	pcstr: .ascii " pc \0"
75	badvastr: .ascii " badva \0"
76	startstr: .ascii "start\n\0"
77	usrstr: .ascii "usrmode\n\0"
78
79	.org EXCEP_ADDRESS - BOOT_ADDRESS
80	.globl evect
81	evect:
82	j excep
83	nop
84	.data
85	.word MAGIC1
86	testval:
87	.word MAGIC2
88	div1:
89	.float 10.0
90	.globl div2
91	div2:
92	.float 0.0

Note: See TracBrowser for help on using the repository browser.