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| 342 | receives the messages on a keyboard input. For such window |
342 | receives the messages on a keyboard input. For such window |
| 343 | the position in the window stack coincides with returned value. |
343 | the position in the window stack coincides with returned value. |
| 344 | * Slot 1 corresponds to special system thread, for which: |
344 | * Slot 1 corresponds to special system thread, for which: |
| 345 | * the window is in the bottom of the window stack, the fields |
345 | * the window is in the bottom of the window stack, the fields |
| 346 | +4 and +6 contain value 1 |
346 | +4 and +6 contain value 1 |
| 347 | * name of the process - "OS/IDLE" (supplemented by spaces) |
347 | * name of the process - "IDLE" (supplemented by spaces) |
| 348 | * address of the process in memory is 0, size of used memory is |
348 | * address of the process in memory is 0, size of used memory is |
| 349 | 16 Mb (0x1000000) |
349 | 16 Mb (0x1000000) |
| 350 | * PID=1 |
350 | * PID=1 |
| 351 | * coordinates and sizes of the window and the client area are by |
351 | * coordinates and sizes of the window and the client area are by |
| 352 | convention set to 0 |
352 | convention set to 0 |
| 353 | * status of the slot is always 0 (running) |
353 | * status of the slot is always 0 (running) |
| 354 | * the execution time adds of time leaving on operations itself |
354 | * the execution time adds of time leaving on operations itself |
| 355 | and idle time in waiting for interrupt (which can be got by call |
355 | and idle time in waiting for interrupt (which can be got by call |
| 356 | to subfunction 4 of function 18). |
356 | to subfunction 4 of function 18). |
| - | 357 | * Slot 2 (and some others) correspond to system threads, for which: |
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| 357 | * Beginning from slot 2, the normal applications are placed. |
358 | * name of the thread - "OS" (supplemented by spaces) |
| 358 | * The normal applications are placed in memory at the address |
359 | * The normal applications are placed in memory at the address |
| 359 | 0 (kernel constant 'std_application_base_address'). |
360 | 0 (kernel constant 'std_application_base_address'). |
| 360 | There is no intersection, as each process has its own page table. |
361 | There is no intersection, as each process has its own page table. |
| 361 | * At creation of the thread it is assigned the slot |
362 | * At creation of the thread it is assigned the slot |
| 362 | in the system table and identifier (Process/Thread IDentifier = |
363 | in the system table and identifier (Process/Thread IDentifier = |