|
Last change
on this file since 343 was 322, checked in by krille_n_@…, 13 years ago |
|
Changes to XTIDE Universal BIOS:
- Commented out the FS and GS segment registers from INTPACK since we never touch them anyway.
- Minor changes to improve speed in the Int13h handler.
- Changed Prepare_ByValidatingSectorsInALforOldInt13h so it really doesn't corrupt anything.
- Changed the makefile so 'make strings' now works even if StringsCompressed.asm is missing or empty.
|
|
File size:
1.2 KB
|
| Line | |
|---|
| 1 | ; Project name : XTIDE Universal BIOS
|
|---|
| 2 | ; Description : Int 13h function AH=25h, Get Drive Information.
|
|---|
| 3 |
|
|---|
| 4 | ; Section containing code
|
|---|
| 5 | SECTION .text
|
|---|
| 6 |
|
|---|
| 7 | ;--------------------------------------------------------------------
|
|---|
| 8 | ; Int 13h function AH=25h, Get Drive Information.
|
|---|
| 9 | ;
|
|---|
| 10 | ; AH25h_HandlerForGetDriveInformation
|
|---|
| 11 | ; Parameters:
|
|---|
| 12 | ; ES: Same as in INTPACK
|
|---|
| 13 | ; DL: Translated Drive number
|
|---|
| 14 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
|---|
| 15 | ; SS:BP: Ptr to IDEPACK
|
|---|
| 16 | ; Parameters on INTPACK:
|
|---|
| 17 | ; ES:BX: Ptr to buffer to receive 512-byte drive information
|
|---|
| 18 | ; Returns with INTPACK:
|
|---|
| 19 | ; AH: Int 13h return status
|
|---|
| 20 | ; CF: 0 if successful, 1 if error
|
|---|
| 21 | ;--------------------------------------------------------------------
|
|---|
| 22 | ALIGN JUMP_ALIGN
|
|---|
| 23 | AH25h_HandlerForGetDriveInformation:
|
|---|
| 24 | mov ax, (COMMAND_IDENTIFY_DEVICE << 8 | 1) ; Read 1 sector
|
|---|
| 25 | call Prepare_BufferToESSIforOldInt13hTransfer ; Preserves AX
|
|---|
| 26 | mov bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_DRQ, FLG_STATUS_DRQ)
|
|---|
| 27 | %ifdef USE_186
|
|---|
| 28 | push Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
|
|---|
| 29 | jmp Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
|
|---|
| 30 | %else
|
|---|
| 31 | call Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
|
|---|
| 32 | jmp Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
|
|---|
| 33 | %endif
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
