А код в Boot Block имеется... Однако...

А код в Boot Block имеется... Однако...

F000:F80A                 lea     ax, Detect_Disk_Msg
; "Detecting floppy drive A media..."
F000:F80E                 mov     cx, 35          ; Detect_Disk_Msg_Len
F000:F811                 mov     dx, 0FF01h
F000:F814                 call    Display_Str
F000:F817                 mov     ax, 0
F000:F81A                 mov     ds, ax
F000:F81C                 mov     byte ptr ds:48Fh, 6
F000:F821                 mov     ax, offset FD_BIOS_PARMS
F000:F824                 cli
F000:F825                 mov     ds:78h, ax
F000:F828                 mov     ds:7Ah, cs
F000:F82C                 sti
F000:F82D                 xor     ax, ax
F000:F82F                 mov     es, ax
F000:F831                 assume es:nothing
F000:F831                 lea     di, Disk_Parms
F000:F835                 lea     si, Media_MSG   
; "1.44Mb"
F000:F839 Next_Drive:
F000:F839                 mov     ah, cs:[di]
F000:F83C                 mov     al, 90h        
; al = FLOPPY_TYPE CMOS index
F000:F83E                 call    Set_Cmos
F000:F841                 shr     al, 4
F000:F844                 mov     ds:412h, al
F000:F847                 mov     al, cs:[di+1]
F000:F84B                 mov     ds:48Bh, al
F000:F84E                 mov     al, cs:[di+2]
F000:F852                 mov     ds:490h, al
F000:F855 Read_again:
F000:F855                 cmp     si, offset Media_MSG
F000:F859                 jnz     Scan_Start
F000:F85B                 xor     ah, ah
F000:F85D                 int     13h