int main(void)
{
void *vfBuffer;
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;
}
if (!VF_available()) {
printf("Virtual Linear Framebuffer not available.\n");
exit(1);
}
vfBuffer = VF_init(0xA0000,64,sizeof(code),code);
if (!vfBuffer) {
printf("Failure to initialise Virtual Linear Framebuffer!\n");
exit(1);
}
VF_exit();
printf("Virtual Linear Framebuffer set up successfully!\n");
return 0;
}
int main(void)
{
FILE *f;
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;
}
PM_installAltCriticalHandler(criticalHandler);
printf("Critical Error handler installed - trying to read from A: drive...\n");
f = fopen("a:\bog.bog","rb");
if (f) fclose(f);
if (criticalError) {
printf("Critical error occured on INT 21h function %02X!\n",
axValue >> 8);
}
else
int main(void)
{
RMREGS regs;
RMSREGS sregs;
VgaInfoBlock vgaInfo;
ushort *mode;
uint vgLen;
uchar *vgPtr;
unsigned r_vgseg,r_vgoff;
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;
}
/* Allocate a 256 byte block of real memory for communicating with
* the VESA BIOS.
*/
if ((vgPtr = PM_getVESABuf(&vgLen,&r_vgseg,&r_vgoff)) == NULL) {
printf("Unable to allocate VESA memory buffer!\n");
exit(1);
}
/* Call the VESA VBE to see if it is out there */
regs.x.ax = 0x4F00;
regs.x.di = r_vgoff;
sregs.es = r_vgseg;
memcpy(vgPtr,"VBE2",4);
PM_int86x(0x10, ®s, ®s, &sregs);
memcpy(&vgaInfo,vgPtr,sizeof(VgaInfoBlock));
if (regs.x.ax == 0x4F && strncmp(vgaInfo.VESASignature,"VESA",4) == 0) {
printf("VESA VBE version %d.%d BIOS detected\n\n",
vgaInfo.VESAVersion >> 8, vgaInfo.VESAVersion & 0xF);
printf("Available video modes:\n");
mode = PM_mapRealPointer(vgaInfo.VideoModePtr >> 16, vgaInfo.VideoModePtr & 0xFFFF);
while (*mode != 0xFFFF) {
printf(" %04hXh (%08X)\n", *mode, (int)mode);
mode++;
}
}
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)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)
{
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;
}
int main(void)
{
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;
}
PM_installAltBreakHandler(breakHandler);
printf("Control C/Break interrupt handler installed\n");
while (1) {
if (ctrlCHit) {
printf("Code termimated with Ctrl-C.\n");
break;
}
if (breakHit) {
printf("Code termimated with Ctrl-Break.\n");
break;
}
if (PM_kbhit() && PM_getch() == 0x1B) {
printf("No break code detected!\n");
break;
}
printf("Hit Ctrl-C or Ctrl-Break to exit!\n");
}
PM_restoreBreakHandler();
return 0;
}
