| 3613,29 → 3613,47 |
|---|
| or subfunction 20. |
| |
| ====================================================================== |
| ======== Function 68, subfunction 14 - wait for driver notify. ======= |
| ===================== Function 68, subfunction 14 ==================== |
| ====== Waiting delivering of signal from another program/driver ====== |
| ====================================================================== |
| Parameters: |
| * eax = 68 - function number |
| * ebx = 14 - subfunction number |
| * ecx = pointer to the buffer for information (8 bytes) |
| * ecx = pointer to the buffer for information (24 bytes) |
| Returned value: |
| * buffer pointed to by ecx contains the following information: |
| * +0: dword: constant EV_INTR = 1 |
| * +4: dword: driver data |
| Remarks: |
| * The current implementation at wait time uses "heavy" operations |
| of task switch. |
| * +0: dword: identifier for underlying data of signal |
| * +4: data of signal (20 bytes), format of which is defining by |
| first dword |
| |
| ====================================================================== |
| ====== Function 68, subfunction 15 - set FPU exception handler. ====== |
| ====== Function 68, subfunction 15 - set new exceptions handler ====== |
| ====================================================================== |
| Parameters: |
| * eax = 68 - function number |
| * ebx = 15 - subfunction number |
| * ecx = address of the new exception handler |
| * edx = the mask of processing exceptions |
| Returned value: |
| * eax = address of the old exception handler (0, if it was not set) |
| * ebx = the old mask of exception handler |
| Remarks: |
| * Bit number in mask of exceptions is correspond to exception number |
| by CPU-specification (Intel-PC). For example, FPU-exception have |
| number 16 (#MF), and SSE-exception - 19 (#XF) |
| * The current implementation ignore the inquiry for hook of 7 |
| exception - system process #NM by one's own. |
| * User handler get exception number in stack parameter. So, correct |
| exit from handler is: RET 4. Return from handler is to the same |
| instruction, that was cause the exception |
| * When control is transfering to user handler, corresponding bit in |
| exception mask is clearing. Rising this exception in consequence |
| - reduce to default-handling. Exactly: terminating the application, |
| or suspending with debug-notify to owner. |
| * After completion of critical operations in user handler, it may be |
| rising corresponding bit in exception mask by using subfunction 18 |
| Clearing exceptions flags in FPU and/or XMM modules - is |
| responsibility of user handler too. |
| |
| ====================================================================== |
| ============= Function 68, subfunction 16 - load driver. ============= |
| 3676,14 → 3694,19 |
|---|
| * Previously one must obtain driver handle by subfunction 16. |
| |
| ====================================================================== |
| ====== Function 68, subfunction 18 - set SSE exception handler. ====== |
| ==== Function 68, subfunction 18 - change state of signal activity === |
| ====================================================================== |
| Parameters: |
| * eax = 68 - function number |
| * ebx = 15 - subfunction number |
| * ecx = address of the new exception handler |
| * ecx = signal number |
| * edx = value of activity (0/1) |
| Returned value: |
| * eax = address of the old exception handler (0, if it was not set) |
| * eax = value of old activity for this signal (0/1) |
| Remarks: |
| * In current implementation, it is changed only exception mask for |
| user exception handler, wich was previously set by subfunction 15. |
| At that, number of signal correspond to exception number. |
| |
| ====================================================================== |
| =============== Function 68, subfunction 19 - load DLL. ============== |