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Last change
on this file since 84 was
84,
checked in by krille_n_@…, 13 years ago
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Minor size optimizations in various files.
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|
File size:
1.2 KB
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| 1 | ; File name : AH14h_HDiag.asm |
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| 2 | ; Project name : IDE BIOS |
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| 3 | ; Created date : 28.9.2007 |
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| 4 | ; Last update : 14.1.2011 |
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| 5 | ; Author : Tomi Tilli, |
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| 6 | ; : Krister Nordvall (optimizations) |
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| 7 | ; Description : Int 13h function AH=14h, Controller Internal Diagnostic. |
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| 8 | |
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| 9 | ; Section containing code |
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| 10 | SECTION .text |
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| 11 | |
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| 12 | ;-------------------------------------------------------------------- |
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| 13 | ; Int 13h function AH=14h, Controller Internal Diagnostic. |
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| 14 | ; |
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| 15 | ; AH14h_HandlerForControllerInternalDiagnostic |
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| 16 | ; Parameters: |
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| 17 | ; AH: Bios function 14h |
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| 18 | ; DL: Drive number (8xh) |
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| 19 | ; Parameters loaded by Int13h_Jump: |
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| 20 | ; DS: RAMVARS segment |
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| 21 | ; Returns: |
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| 22 | ; AH: BIOS Error code |
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| 23 | ; AL: 0 (custom for this BIOS: .bReset byte from DPT) |
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| 24 | ; CF: 0 if succesfull, 1 if error |
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| 25 | ; IF: 1 |
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| 26 | ; Corrupts registers: |
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| 27 | ; Flags |
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| 28 | ;-------------------------------------------------------------------- |
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| 29 | ALIGN JUMP_ALIGN |
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| 30 | AH14h_HandlerForControllerInternalDiagnostic: |
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| 31 | call FindDPT_ForDriveNumber ; DS:DI now points to DPT |
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| 32 | mov al, [di+DPT.bReset] ; Load reset byte to AL |
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| 33 | test al, al ; Any error? |
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| 34 | mov ah, RET_HD_RESETFAIL ; Assume there was an error |
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| 35 | stc |
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| 36 | jnz SHORT .Return |
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| 37 | xor ah, ah ; Zero AH and CF since success |
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| 38 | .Return: |
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| 39 | jmp Int13h_PopDiDsAndReturn |
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