source: trunk/softs/tests_ccvcache_v4/test_ao_delayslot/test.S @ 365

Last change on this file since 365 was 232, checked in by alain, 13 years ago

Introducing the elementary tests for a TSAR mono-cluster
mono-processor platform with MMU using the vci_cc_vcache_v4
such as the "tsarv4_mono_mmu".
(assemby level tests written by Manuel Bouyer)

File size: 1.2 KB
Line 
1/*
2 * arithmetic overflow test: check that a overflow 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) */
19        lui     a0, 0x0040;
20        mtc0    a0, COP0_STATUS
21        la      a0, 0x7fffffff
22        li      a1, 0x02
23        j       exit
24        add     a0, a0, a1
25        /* we should not get there, */
26        EXIT(2)
27        .globl exit
28exit:
29        move    a0, v0
30        PRINTX
31        PUTCHAR(' ')
32        move    a0, v1
33        PRINTX
34        PUTCHAR('\n')
35        /* we should get there */
36        EXIT(0)
37
38        .globl excep
39excep:
40        .set noreorder
41        PRINT(statusstr)
42        mfc0    a0, COP0_STATUS
43        PRINTX
44
45        PRINT(causestr)
46        mfc0    a0, COP0_CAUSE
47        PRINTX
48
49        PRINT(pcstr)
50        mfc0    a0, COP0_EXPC
51        PRINTX
52
53        PRINT(badvastr)
54        mfc0    a0, COP_0_BADVADDR
55        PRINTX
56        PUTCHAR('\n')
57        la      a0, exit
58        mtc0    a0, COP0_EXPC
59        li      v0, MAGIC1
60        li      v1, MAGIC2
61        li      a3, 1
62        eret
63        nop
64
65#we should not end there
66        EXIT(1)
67
68        .rodata:
69statusstr: .ascii "status \0"
70causestr: .ascii " cause \0"
71pcstr: .ascii " pc \0"
72badvastr: .ascii " badva \0"
73startstr: .ascii "start\n\0"
74usrstr: .ascii "usrmode\n\0"
75
76        .org EXCEP_ADDRESS - BOOT_ADDRESS
77        .globl evect
78evect:
79        j       excep
80        nop
81        .data
82        .word MAGIC1
83testval:
84        .word MAGIC2
Note: See TracBrowser for help on using the repository browser.