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//
// This code is temporary. When Insignia supplies rom support, it should
// be removed.
//
/* x86 v1.0
*
* XBIOS.H
* Guest ROM BIOS support
*
* History
* Created 20-Oct-90 by Jeff Parsons
* 17-Apr-91 Trimmed by Dave Hastings for use in temp. softpc
*
* COPYRIGHT NOTICE
* This source file may not be distributed, modified or incorporated into
* another product without prior approval from the author, Jeff Parsons.
* This file may be copied to designated servers and machines authorized to
* access those servers, but that does not imply any form of approval.
*/
/* BIOS interrupts
*/
#define BIOSINT_DIVZERO 0x00 //
#define BIOSINT_SSTEP 0x01 //
#define BIOSINT_NMI 0x02 // for parity errors, too
#define BIOSINT_BRKPT 0x03 //
#define BIOSINT_OVFL 0x04 //
#define BIOSINT_PRTSC 0x05 //
#define BIOSINT_TMRINT 0x08 //
#define BIOSINT_KBDINT 0x09 //
#define BIOSINT_COM2INT 0x0B //
#define BIOSINT_COM1INT 0x0C //
#define BIOSINT_LPT2INT 0x0D //
#define BIOSINT_FLPYINT 0x0E //
#define BIOSINT_LPT1INT 0x0F //
#define BIOSINT_VID 0x10 //
#define BIOSINT_EQUIP 0x11 //
#define BIOSINT_MEMORY 0x12 //
#define BIOSINT_DSK 0x13 //
#define BIOSINT_COM 0x14 //
#define BIOSINT_OSHOOK 0x15 //
#define BIOSINT_KBD 0x16 //
#define BIOSINT_PRT 0x17 //
#define BIOSINT_BASIC 0x18 //
#define BIOSINT_WBOOT 0x19 //
#define BIOSINT_TIME 0x1A //
#define BIOSINT_CTRLBRK 0x1B //
#define BIOSINT_TICK 0x1C //
#define BIOSINT_VIDPARMS 0x1D //
#define BIOSINT_FDSKPARMS 0x1E //
#define BIOSINT_VIDGRAPH 0x1F //
#define BIOSINT_OLDDISKIO 0x40 //
#define BIOSINT_HDSK1PARMS 0x41 //
#define BIOSINT_OLDVID 0x42 //
#define BIOSINT_EXTVIDGRAPH 0x43 //
#define BIOSINT_HDSK2PARMS 0x46 //
/* BIOS Data Area locations
*
* So that all low-memory references are relative to the same segment
* (ie, 0), we use 0:400 instead of 40:0 as the base address of this area.
*
* Note that as more individual BIOS modules are created (eg, xbiosvid,
* xbiosdsk, etc), many of these BIOS data definitions should be moved to the
* appropriate individual header file.
*/
#define BIOSDATA_SEG 0
#define BIOSDATA_BEGIN 0x400
#define BIOSDATA_RS232_BASE 0x400 // 4 COM adapter addresses
#define BIOSDATA_PRINTER_BASE 0x408 // 4 LPT adapter addresses
#define BIOSDATA_EQUIP_FLAG 0x410 // equipment flag (1 word)
#define BIOSEQUIP_FLOPPY 0x0001 // machine has a floppy
#define BIOSEQUIP_X87 0x0002 // X87=1 if coprocessor installed
#define BIOSEQUIP_16KPLANAR 0x0000 //
#define BIOSEQUIP_32KPLANAR 0x0004 //
#define BIOSEQUIP_48KPLANAR 0x0008 //
#define BIOSEQUIP_64KPLANAR 0x000C //
#define BIOSEQUIP_PLANARMASK 0x000C //
#define BIOSEQUIP_VIDEOMASK 0x0030 // video configuration bits
#define BIOSEQUIP_COLOR40VIDEO 0x0010 //
#define BIOSEQUIP_COLOR80VIDEO 0x0020 //
#define BIOSEQUIP_MONOVIDEO 0x0030 //
#define BIOSEQUIP_FLOPPYMASK 0x00C0 // # floppies-1 (if FLOPPY=1)
#define BIOSEQUIP_COMMASK 0x0E00 // # COM ports
#define BIOSEQUIP_PRINTERMASK 0xC000 // # LPT ports
#define BIOSDATA_MFG_TST 0x412 // initialization flag (1 byte)
#define BIOSDATA_MEMORY_SIZE 0x413 // memory size in K bytes (1 word)
#define BIOSDATA_MFG_ERR_FLG 0x415 // mfg error codes (2 bytes)
#define BIOSDATA_END 0x4FF
#define BIOSDATA_BOOT 0x7C00
/* BIOS ROM locations (assumed segment BIOSROM_SEG)
*/
#define BIOSROM_SEG 0xF000
#define BIOSROM_WBOOT 0xE6F2
#define BIOSROM_DSK 0xEC59
#define BIOSROM_MEMORY 0xF841
#define BIOSROM_EQUIP 0xF84D
#define BIOSROM_IRET 0xFF53 // 1 byte IRET
#define BIOSROM_RESET 0xFFF0 // 5 byte jmp
#define BIOSROM_DATE 0xFFF5 // 8 byte date (eg, 04/24/81)
#define BIOSROM_UNUSED1 0xFFFD
#define BIOSROM_SIG 0xFFFE // PC ID byte
#define BIOSROM_GBP 0xFFFF // location of GBP opcode (non-standard)
#define BIOSSIG_PC 0xFF
#define BIOSSIG_XT 0xFE
#define BIOSSIG_JR 0xFD
#define BIOSSIG_AT 0xFC // and many more...
#define BIOSDATE_MINE '0','4','/','1','7','/','9','1'
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