Last change
on this file since 277 was
277,
checked in by gregli@…, 12 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.