2-30. System Control Port A (Hex 0092) .......... 2-30
2-31. System Control Port B (Hex 0061, Write) ...... 2-31
2-32. System Control Port B (Hex 0061, Read) ...... 2-31
2-33. Error Codes . . . . . . . . . . . . . . . . . . . . . . . . 2-35
3-1. BIOS Video VGA Modes ................. 3-3
3-2. Video BIOS Extended Modes—Trident 9397 ...... 3-4
3-3. PCMCIA PC Card Slot Pin Assignments ....... 3-12
viii