source:
trunk/loader/a495/entry.S
@
1198
| Revision 1198, 377 bytes checked in by msl, 2 years ago (diff) |
|---|
| Line | |
|---|---|
| 1 | .section .entry |
| 2 | |
| 3 | // ROM:FFFF1070, Turn OFF SD Card power |
| 4 | // to support autostart |
| 5 | LDR R3, =0xC022007C |
| 6 | MOV R2, #0x44 |
| 7 | STR R2, [R3] |
| 8 | |
| 9 | // looks like idle cycle is required for proper shutdown |
| 10 | MOV R3, #0x8000 |
| 11 | 1: |
| 12 | SUB R3, R3, #1 |
| 13 | CMP R3, #0 |
| 14 | BNE 1b |
| 15 | |
| 16 | // ordinary startup... |
| 17 | MOV SP, #0x1900 |
| 18 | MOV R11, #0 |
| 19 | B my_restart |
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