75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
//
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// Defines for machine models
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//
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#define PS2_AT 0xF819 // PS/2 non-micro channel
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#define PS2_L40 0xF823 // PS/2 non-micro channel
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#define PS1_386 0xF830 // 386 non-microchannel // 6.13
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#define PS2_PORT 0x0001 // PS/2 specific port
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#define ISA_PORT 0x0002 // AT specific port
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#define HYBRID_PORT 0x0004 // PS/2 non-micro channel specific port
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//
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// Bios int 15h C0h buffer definition
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//
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struct BIOS_INT15_C0_BUFFER {
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USHORT Size;
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USHORT Model;
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UCHAR BiosRevision;
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UCHAR ConfigurationFlags;
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UCHAR Reserved[4];
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} BiosSystemEnvironment;
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typedef struct _TEMPORARY_ROM_BLOCK {
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ROM_BLOCK RomBlock;
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struct _TEMPORARY_ROM_BLOCK far *Next;
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} TEMPORARY_ROM_BLOCK, far * FPTEMPORARY_ROM_BLOCK;
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#define POS_MAX_SLOT 8
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#define ROMBIOS_START 0xF0000
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#define ROMBIOS_LEN 0x10000
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#define PS2BIOS_START 0xE0000
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#define PS2BIOS_LEN 0x20000
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#define EXTROM_START 0xC0000 // where and how far to
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#define EXTROM_LEN 0x40000 // search for external adapter ROMs
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#define EBIOSDATA_START 0x9FC00
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#define EBIOSDATA_LEN 0x00400
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#define NUMBER_VECTORS 0x80
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#define VGA_PARAMETER_POINTER 0x4A8
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#define ALIGN_DOWN(address,amt) ((ULONG)(address) & ~(( amt ) - 1))
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#define ALIGN_UP(address,amt) (ALIGN_DOWN( (address + (amt) - 1), (amt) ))
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//
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// ROM format
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//
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#define ROM_HEADER_SIGNATURE 0xAA55
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#define ROM_HEADER_INCREMENT 0x800
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#define BLOCKSIZE 512
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typedef struct _ROM_HEADER {
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USHORT Signature; // should be ROMHDR_SIGNATURE
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UCHAR NumberBlocks; // # of ROM blocks
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UCHAR Filler[ROM_HEADER_INCREMENT - 3];
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} ROM_HEADER, far *FPROM_HEADER;
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//
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// External References
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//
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extern
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BOOLEAN
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HwRomCompare (
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ULONG Source,
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ULONG Destination,
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ULONG Size
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);
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