1 " STMFD SP!, {R0}\n"
2 //R3 = Pointer to task function to create
3
4 /*** INSTALL capt_seq_task() hook ***/
5 " LDR R0, =task_CaptSeq\n" // DryOS original code function ptr.
6 " CMP R0, R3\n" // is the given taskptr equal to our searched function?
7 " LDREQ R3, =capt_seq_task\n" // if so replace with our task function base ptr.
8 " BEQ exitHook\n" // below compares not necessary if this check has found something.
9
10 /*** INSTALL exp_drv_task() hook ***/
11 " LDR R0, =task_ExpDrv\n"
12 " CMP R0, R3\n"
13 " LDREQ R3, =exp_drv_task\n"
14 " BEQ exitHook\n"
15
16
17 /*** INSTALL filewrite() hook ***/
18 //" LDR R0, =task_FileWrite\n"
19 //" CMP R0, R3\n"
20 //" LDREQ R3, =filewritetask\n"
21 //" BEQ exitHook\n"
22
23 /*** INSTALL JogDial() hook ***/
24 // was commented out in boot.c from http://chdk.setepontos.com/index.php?topic=12418.msg123489#msg123489
25 // but not in codegen file - reyalp
26 //" LDR R0, =task_RotaryEncoder\n"
27 //" CMP R0, R3\n"
28 //" LDREQ R3, =JogDial_task_my\n"
29 //" BEQ exitHook\n"
30
31 /*** INSTALL movie_record_task() hook ***/
32 " LDR R0, =task_MovieRecord\n"
33 " CMP R0, R3\n"
34 " LDREQ R3, =movie_record_task\n"
35 " BEQ exitHook\n"
36
37 /*** INSTALL liveimage_task() hook ***/
38 " LDR R0, =task_LiveImageTask\n"
39 " CMP R0, R3\n"
40 " LDREQ R3, =liveimage_task\n"
41 " BEQ exitHook\n"
42
43 /*** INSTALL init_file_modules_task() hook ***/
44 " LDR R0, =task_InitFileModules\n"
45 " CMP R0, R3\n"
46 " LDREQ R3, =init_file_modules_task\n"
47
48 "exitHook:\n"
49 // restore overwritten registers
50 " LDMFD SP!, {R0}\n"
51 // Execute overwritten instructions from original code, then jump to firmware