HP Vectra Technical Reference Manual page 338

0.1.1 I/O Port Addresses for DMA Controllers
383
D.2 8259A Interrupt Controllers
385
D.3 8254 Timer Controller (I/O Ports 40H through 43H)
389
,.. D.4 Keyboard Data Buffer (60H)
389
D.5 SPU Control Port (61 H)
389
D.6 Speaker Control
390
D.7 Keyboard I/O Ports
391
D.8 Real Time Clock Ports
391
D.9 Hard Reset Enable Port
392
D.10 NMI Sources and Involved I/O Ports
392
E. SYSTEM EQUATE FILE
395
E.1 The Equate File
396
F. DEFAULT DEVICE MAPPiNG
423
G. DRIVER WRITER'S GUiDE
425
G.1 Who Should Read This Appendix
425
G.2 Introduction
425
G.3 Installation of Device Drivers
426
G.4 Initialization
427
G.4.1 Product Identification
427
G.4.2 Obtaining Memory From the EX-BIOS
428
G.4.3 Getting a Free Vector
429
G.5 EX-BIOS Driver Functions
429
EX-BIOS Driver Function Definitions 431
F _ISR (AH
=
OOH) 431
F _SYSTEM (AH
=
02H)
432
SF_INIT (AX
=
0200H)
432
SF_START (AX
=
0202H) 432
SF_REPORT_STATE (AX
=
0204H) 433
SF_VERSION_DESC (AX
=
0206H) 433
SF_DEF-ADR (AX
=
0208H)
434
SF_GET-ADR (AX
=
020AH) 434
Appendices 329