source: trunk/Softwares/Test/Test_008/src/sys/crt0.s @ 135

Last change on this file since 135 was 101, checked in by rosiere, 16 years ago

1) Add soc test
2) fix bug (Pc management, Decod and execute, Update prediction ...)

  • Property svn:keywords set to Id
File size: 1.1 KB
Line 
1/*
2 * Test_008
3 *
4 * end_ko : infinite_loop
5 * end_ok : Write in R1 the stop address and stop an data
6 *          The store in the destination of an jump
7 * start  : write an value in special register (epcr), and read this special register
8 */
9       
10        .file   "crt0.s"
11        /*
12        .section .vector
13        */
14        .section .text
15        .align  4       
16
17/* ---[ 0x0  : Print a error ]------------------------------------------- */
18
19        .org 0x0
20_end_ko        :       
21        l.movhi r1,     hi(_tty)
22        l.ori   r1, r1, lo(_tty)
23        l.sw    4(r1), r1 /* stop address */
24_infinite_loop :       
25        l.j     _infinite_loop
26        l.nop
27
28_end_ok :
29        l.movhi r1,     hi(_tty)
30        l.ori   r1, r1, lo(_tty)
31        l.sw    4(r1), r0 /* stop address */
32
33
34/* ---[ 0x100: RESET exception ]----------------------------------------- */
35        .org 0x100
36        .global _start
37_start:
38        /* r1 : data */
39        l.movhi r1,     hi(0xdeadbeef)
40        l.ori   r1, r1, lo(0xdeadbeef)
41        /* EPCR <- r1 */
42        l.mtspr r0, r1, 32
43        /* r2 <- EPCR */
44        l.mfspr r2, r0, 32
45        /* test if two register is same */
46        l.sfeq  r2, r1
47        l.bnf   _end_ko
48        l.nop
49        l.j     _end_ok
50        l.nop
51
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