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 /*** INSTALL filewrite() hook ***/
17 " LDR R0, =task_FileWrite\n"
18 " CMP R0, R3\n"
19 " LDREQ R3, =filewritetask\n"
20 " BEQ exitHook\n"
21
22 /*** INSTALL movie_record_task() hook ***/
23 /*
24 " LDR R0, =task_MovieRecord\n"
25 " CMP R0, R3\n"
26 " LDREQ R3, =movie_record_task\n"
27 " BEQ exitHook\n"
28 */
29
30 /*** INSTALL init_file_modules_task() hook ***/
31 " LDR R0, =task_InitFileModules\n"
32 " CMP R0, R3\n"
33 " LDREQ R3, =init_file_modules_task\n"
34
35 "exitHook:\n"
36 // restore overwritten registers
37 " LDMFD SP!, {R0}\n"
38 // Execute overwritten instructions from original code, then jump to firmware