int main(void) { long oldCount; PM_lockHandle lh; /* Install our timer handler and lock handler pages in memory. It is * difficult to get the size of a function in C, but we know our * function is well less than 100 bytes (and an entire 4k page will * need to be locked by the server anyway). */ PM_lockCodePages((__codePtr)RTCHandler,100,&lh); PM_lockDataPages((void*)&count,sizeof(count),&lh); PM_installBreakHandler(); /* We *DONT* want Ctrl-Breaks! */ PM_setRealTimeClockHandler(RTCHandler,128); printf("RealTimeClock interrupt handler installed - Hit ESC to exit\n"); oldCount = count; while (1) { if (PM_kbhit() && (PM_getch() == 0x1B)) break; if (count != oldCount) { printf("Tick, Tock: %ld\n", count); oldCount = count; } } PM_restoreRealTimeClockHandler(); PM_restoreBreakHandler(); PM_unlockDataPages((void*)&count,sizeof(count),&lh); PM_unlockCodePages((__codePtr)RTCHandler,100,&lh); printf("RealTimeClock handler was called %ld times\n", count); return 0; }
int main(void) { long oldCount; PM_lockHandle lh; printf("Program running in "); switch (PM_getModeType()) { case PM_realMode: printf("real mode.\n\n"); break; case PM_286: printf("16 bit protected mode.\n\n"); break; case PM_386: printf("32 bit protected mode.\n\n"); break; } /* Install our timer handler and lock handler pages in memory. It is * difficult to get the size of a function in C, but we know our * function is well less than 100 bytes (and an entire 4k page will * need to be locked by the server anyway). */ PM_lockCodePages((__codePtr)timerHandler,100,&lh); PM_lockDataPages((void*)&count,sizeof(count),&lh); PM_installBreakHandler(); /* We *DONT* want Ctrl-Breaks! */ PM_setTimerHandler(timerHandler); printf("Timer interrupt handler installed - Hit ESC to exit\n"); oldCount = count; while (1) { if (PM_kbhit() && (PM_getch() == 0x1B)) break; if (count != oldCount) { printf("Tick, Tock: %ld\n", count); oldCount = count; } } PM_restoreTimerHandler(); PM_restoreBreakHandler(); PM_unlockDataPages((void*)&count,sizeof(count),&lh); PM_unlockCodePages((__codePtr)timerHandler,100,&lh); printf("Timer handler was called %ld times\n", count); return 0; }
int main(void) { int ch; PM_lockHandle lh; printf("Program running in "); switch (PM_getModeType()) { case PM_realMode: printf("real mode.\n\n"); break; case PM_286: printf("16 bit protected mode.\n\n"); break; case PM_386: printf("32 bit protected mode.\n\n"); break; } /* Install our timer handler and lock handler pages in memory. It is * difficult to get the size of a function in C, but we know our * function is well less than 100 bytes (and an entire 4k page will * need to be locked by the server anyway). */ PM_lockCodePages((__codePtr)keyHandler,100,&lh); PM_lockDataPages((void*)&count,sizeof(count),&lh); PM_installBreakHandler(); /* We *DONT* want Ctrl-Breaks! */ PM_setKeyHandler(keyHandler); printf("Keyboard interrupt handler installed - Type some characters and\n"); printf("hit ESC to exit\n"); while ((ch = PM_getch()) != 0x1B) { printf("%c", ch); fflush(stdout); } PM_restoreKeyHandler(); PM_restoreBreakHandler(); PM_unlockDataPages((void*)&count,sizeof(count),&lh); PM_unlockCodePages((__codePtr)keyHandler,100,&lh); printf("\n\nKeyboard handler was called %ld times\n", count); return 0; }