diff options
Diffstat (limited to 'private/mvdm/v86/scaffold/i386/xbios.h')
| -rw-r--r-- | private/mvdm/v86/scaffold/i386/xbios.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/private/mvdm/v86/scaffold/i386/xbios.h b/private/mvdm/v86/scaffold/i386/xbios.h new file mode 100644 index 000000000..253f6e1e3 --- /dev/null +++ b/private/mvdm/v86/scaffold/i386/xbios.h @@ -0,0 +1,123 @@ +// +// 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' + + |