lxdream 0.9.1| filename | test/lib/crt0.s |
| changeset | 976:e57a25d9eb7d |
| prev | 812:8cc61d5ea1f8 |
| author | nkeynes |
| date | Tue Feb 28 18:22:52 2012 +1000 (12 years ago) |
| permissions | -rw-r--r-- |
| last change | Add a GL-only video driver for android usage (since the Java code is responsible for creating the context) |
| view | annotate | diff | log | raw |
1 .section .text
2 .global start
3 .global ___exit
4 .global _atexit
5 start:
6 mov.l setup_cache_k,r0
7 mov.l p2_mask,r1
8 or r1,r0
9 jmp @r0
10 nop
11 setup_cache:
12 mov.l ccr_addr,r0
13 mov.w ccr_data,r1
14 mov.l r1,@r0
15 mov.l start_2_k,r0
16 nop
17 nop
18 nop
19 nop
20 nop
21 nop
22 nop
23 jmp @r0
24 nop
25 start_2:
26 mov.l old_stack_k,r14
27 mov.l r15,@r14
28 mov.l old_pr_k,r14
29 sts pr,r15
30 mov.l r15,@r14
31 mov.l stack_k,r15
33 ! zero out bss
34 mov.l edata_k,r0
35 mov.l end_k,r1
36 mov #0,r2
37 start_l:
38 mov.l r2,@r0
39 add #4,r0
40 cmp/ge r0,r1
41 bt start_l
43 #if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY)
44 mov.l set_fpscr_k, r1
45 jsr @r1
46 mov #0,r4
47 lds r3,fpscr
48 #endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) */
50 mov.l sr_data, r1
51 ldc r1, sr
53 ! call the mainline
54 mov.l main_k,r0
55 jsr @r0
56 or r0,r0
58 ! call exit
59 mov r0,r4
60 mov.l exit_k,r0
61 jsr @r0
62 or r0,r0
64 ___exit:
65 mov.l old_pr_k,r14
66 mov.l @r14,r15
67 lds r15,pr
68 mov.l old_stack_k,r14
69 mov.l @r14,r15
70 rts
71 nop
73 _atexit:
74 rts
75 nop
77 .align 4
78 #if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__)
79 set_fpscr_k:
80 .long ___set_fpscr
81 #endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(SH4_SINGLE_ONLY) */
82 stack_k:
83 .long _stack
84 edata_k:
85 .long _edata
86 end_k:
87 .long _end
88 main_k:
89 .long _main
90 exit_k:
91 .long _exit
93 old_stack_k:
94 .long _old_stack
95 old_pr_k:
96 .long _old_pr
98 _old_stack:
99 .long 0
100 _old_pr:
101 .long 0
103 setup_cache_k:
104 .long setup_cache
105 start_2_k:
106 .long start_2
107 p2_mask:
108 .long 0xa0000000
109 sr_data:
110 .long 0x400000f0
111 ccr_addr:
112 .long 0xff00001c
113 ccr_data:
114 .word 0x090b
116 .align 4
118 #ifdef __ELF__
119 .section .stack,"aw"
120 #else
121 .section .stack
122 #endif
123 ! _stack: .long 0xdeaddead
.