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Commit | Line | Data |
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1 | TTL C:\pocket\test\asm.cpp | |
2 | ||
3 | AREA |.drectve|, DRECTVE | |
4 | DCB "-defaultlib:coredll.lib " | |
5 | DCB "-defaultlib:corelibc.lib " | |
6 | ||
7 | EXPORT |?do_it@@YAXXZ| ; do_it | |
8 | AREA |.pdata|, PDATA | |
9 | |$T222| DCD |?do_it@@YAXXZ| | |
10 | DCD 0x40000100 | |
11 | AREA |.text|, CODE | |
12 | |?do_it@@YAXXZ| PROC ; do_it | |
13 | |$M220| | |
14 | ||
15 | ||
16 | mcr p15, 0, r0, c7, c5, 0 ;/* invalidate i cache & BTB */ | |
17 | mrc p15, 0, r0, c2, c0, 0 | |
18 | mov r0, r0 | |
19 | sub pc, pc, #4 | |
20 | ||
21 | ||
22 | ; turn off LCD controller... | |
23 | ; I couldn't figure out how to use armasm.exe conditional with variables | |
24 | ; #if xscale | |
25 | ; ldr r9, =0x44000000 | |
26 | ; ldr r8, [r9] | |
27 | ; orr r8, r8, #0x400 | |
28 | ; str r8, [r9] | |
29 | ||
30 | ; #elif strongarm | |
31 | ldr r9, =0xb0100000 | |
32 | ldr r8, [r9] | |
33 | bic r8, r8, #1 | |
34 | str r8, [r9] | |
35 | ||
36 | ; turn off unused serial ports | |
37 | ||
38 | mov r8, #0 | |
39 | ldr r9, =0x80010000 | |
40 | str r8, [r9, #0xC] | |
41 | ldr r9, =0x80050000 | |
42 | str r8, [r9, #0xC] | |
43 | ||
44 | ; #endif | |
45 | ||
46 | add r9, r1, #0x100 | |
47 | ||
48 | ; #if xscale | |
49 | ; ldr r5, =0xa0000100 | |
50 | ; ldr r7, =0xa0400000 | |
51 | ||
52 | ; #elif strongarm | |
53 | ldr r5, =0xc0000100 | |
54 | ldr r7, =0xc0400000 | |
55 | ; #endif | |
56 | ||
57 | ||
58 | label ldr r8, [r9] | |
59 | str r8, [r5] | |
60 | add r9, r9, #4 | |
61 | add r5, r5, #4 | |
62 | cmp r5, r7 | |
63 | blt label | |
64 | ||
65 | ; #if xscale | |
66 | ; MOV r4, #0xA0000000 | |
67 | ||
68 | ; #elif strongarm | |
69 | MOV r4, #0xc0000000 | |
70 | ; #endif | |
71 | ||
72 | add r11,r4,#0x8000 | |
73 | ||
74 | mov r10,r2 ;machine number passed from DRAMloader | |
75 | ||
76 | mcr p15, 0, r0, c8, c7, 0x00 ;/* invalidate I+D TLB */ | |
77 | mrc p15, 0, r0, c2, c0, 0 | |
78 | mov r0, r0 | |
79 | sub pc, pc, #4 | |
80 | ||
81 | ; they skipped this, unnecessary? seems like we need to do this | |
82 | ||
83 | mcr p15, 0, r0, c7, c5, 0 ;/* invalidate i cache & BTB */ | |
84 | ||
85 | mov r0, #0 | |
86 | mcr p15, 0, r0, c13, c0, 0 | |
87 | mrc p15, 0, r0, c2, c0, 0 | |
88 | mov r0, r0 | |
89 | sub pc, pc, #4 | |
90 | ||
91 | mov r0, #0 | |
92 | mov r1, r10 | |
93 | ldr r2, [r2, #0] | |
94 | mov r2, #0 | |
95 | ||
96 | ; Jump into the kernel: | |
97 | mov pc, r11 | |
98 | ||
99 | ||
100 | |$M221| | |
101 | ENDP ; |?do_it@@YAXXZ|, do_it | |
102 | END | |
103 |