|
Last change
on this file since 319 was 277, checked in by gregli@…, 13 years ago |
|
Moved the bulk of the serial code to the assembly library, for inclusion in other utilities. Fixed a bug in int13h.asm when floppy support was not enabled that was preventing foreign drives from working properly.
|
|
File size:
1.1 KB
|
| Line | |
|---|
| 1 | ; Project name : XTIDE Universal BIOS
|
|---|
| 2 | ; Description : Sets Serial Device specific parameters to DPT.
|
|---|
| 3 |
|
|---|
| 4 | ; Section containing code
|
|---|
| 5 | SECTION .text
|
|---|
| 6 |
|
|---|
| 7 | ;--------------------------------------------------------------------
|
|---|
| 8 | ; SerialDPT_Finalize
|
|---|
| 9 | ; Parameters:
|
|---|
| 10 | ; DS:DI: Ptr to Disk Parameter Table
|
|---|
| 11 | ; ES:SI: Ptr to 512-byte ATA information read from the drive
|
|---|
| 12 | ; Returns:
|
|---|
| 13 | ; CF: Set, indicates that this is a floppy disk
|
|---|
| 14 | ; Clear, indicates that this is a hard disk
|
|---|
| 15 | ; Corrupts registers:
|
|---|
| 16 | ; AX
|
|---|
| 17 | ;--------------------------------------------------------------------
|
|---|
| 18 | SerialDPT_Finalize:
|
|---|
| 19 | mov ax, [es:si+SerialServer_ATA_wPortAndBaud]
|
|---|
| 20 | mov [di+DPT_SERIAL.wSerialPortAndBaud], ax
|
|---|
| 21 |
|
|---|
| 22 | ;
|
|---|
| 23 | ; Note that this section is not under %ifdef MODULE_SERIAL_FLOPPY. It is important to
|
|---|
| 24 | ; distinguish floppy disks presented by the server and not treat them as hard disks, even
|
|---|
| 25 | ; if the floppy support is disabled.
|
|---|
| 26 | ;
|
|---|
| 27 | mov al, [es:si+SerialServer_ATA_wFloppyFlagAndType]
|
|---|
| 28 | or al, FLGH_DPT_SERIAL_DEVICE
|
|---|
| 29 | or byte [di+DPT.bFlagsHigh], al
|
|---|
| 30 |
|
|---|
| 31 | test al, FLGH_DPT_SERIAL_FLOPPY ; clears CF
|
|---|
| 32 | jz .notfloppy
|
|---|
| 33 | stc
|
|---|
| 34 | .notfloppy:
|
|---|
| 35 |
|
|---|
| 36 | ret
|
|---|
| 37 |
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
