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Nero 2019-10-16 21:09:31 +00:00
parent 4abfab2812
commit b3014ef8e4
3 changed files with 26 additions and 30 deletions
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lib/fdc.asm Normal file
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; FDC Descriptor / BIOS parameter block
fdc_ss: equ 0x0B ; WORD sector size
fdc_sc: equ 0x0D ; BYTE sectors per cluster
fdc_rsc: equ 0x0E ; WORD reserved sectors
fdc_fn: equ 0x10 ; BYTE FAT tables
fdc_rde: equ 0x11 ; WORD root directory entries
fdc_ts: equ 0x13 ; WORD total sector count
; 0 if >65535, use lrgts then
fdc_mi: equ 0x15 ; BYTE media descriptor byte
fdc_sf: equ 0x16 ; WORD sectors per FAT
fdc_spt: equ 0x18 ; WORD sectors per track
fdc_nos: equ 0x1A ; WORD sides/heads
fdc_po: equ 0x1C ; DWORD partition offset
fdc_lrgts: equ 0x20 ; DWORD large sector count