mbrtab:	equ 0x1BE	; start of partition table
mbrsig:	equ 0x1FE	; start of signature
mbrmn:	equ 0x55AA	; signature value

pardn:	equ 0x00	; byte: partition active flag
parchs:	equ 0x01	; 3 bytes: CHS for first sector
partyp:	equ 0x04	; byte: partition type
parend:	equ 0x05	; 3 bytes: CHS for last sector
paroff:	equ 0x08	; dword: partition offset in sectors
parlen:	equ 0x0C	; dword: partition length in sectors
parsiz:	equ 0x10