[90] | 1 | ; Project name : XTIDE Universal BIOS |
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[3] | 2 | ; Description : Int 13h BIOS functions (Floppy and Hard disk). |
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| 3 | |
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[376] | 4 | ; |
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[445] | 5 | ; XTIDE Universal BIOS and Associated Tools |
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[526] | 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
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[376] | 7 | ; |
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| 8 | ; This program is free software; you can redistribute it and/or modify |
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| 9 | ; it under the terms of the GNU General Public License as published by |
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| 10 | ; the Free Software Foundation; either version 2 of the License, or |
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| 11 | ; (at your option) any later version. |
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[445] | 12 | ; |
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[376] | 13 | ; This program is distributed in the hope that it will be useful, |
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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[445] | 16 | ; GNU General Public License for more details. |
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[376] | 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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[445] | 18 | ; |
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[376] | 19 | |
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[3] | 20 | ; Section containing code |
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| 21 | SECTION .text |
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| 22 | |
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| 23 | ;-------------------------------------------------------------------- |
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| 24 | ; Int 13h software interrupt handler. |
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[417] | 25 | ; This handler changes stack to top of stolen conventional memory |
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| 26 | ; and then calls the actual INT 13h handler (Int13h_DiskFunctionsHandler). |
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| 27 | ; |
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| 28 | ; Int13h_DiskFunctionsHandlerWithStackChange |
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| 29 | ; Parameters: |
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| 30 | ; AH: Bios function |
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| 31 | ; DL: Drive number |
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| 32 | ; Other: Depends on function |
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| 33 | ; Returns: |
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| 34 | ; Depends on function |
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| 35 | ;-------------------------------------------------------------------- |
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| 36 | %ifdef RELOCATE_INT13H_STACK |
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| 37 | ALIGN JUMP_ALIGN |
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| 38 | Int13h_DiskFunctionsHandlerWithStackChange: |
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[525] | 39 | sti ; Enable interrupts |
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| 40 | ; TODO: Maybe we need to save Flags (DF) as well? |
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| 41 | push ds ; Save DS:DI on the original stack |
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[417] | 42 | push di |
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| 43 | call RamVars_GetSegmentToDS |
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| 44 | |
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| 45 | ; Store entry registers to RAMVARS |
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[525] | 46 | %ifdef USE_386 |
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| 47 | pop DWORD [RAMVARS.dwStackChangeDSDI] |
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| 48 | %else |
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| 49 | pop WORD [RAMVARS.wStackChangeDI] ; Pop DS:DI to the top of what |
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| 50 | pop WORD [RAMVARS.wStackChangeDS] ; is to become the new stack |
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| 51 | %endif |
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[417] | 52 | mov [RAMVARS.fpInt13hEntryStack], sp |
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| 53 | mov [RAMVARS.fpInt13hEntryStack+2], ss |
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| 54 | |
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| 55 | ; Load new stack and restore DS and DI |
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[525] | 56 | mov di, ds ; We can save 2 bytes by using PUSH/POP but it's slower |
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| 57 | mov ss, di ; No need to wrap with CLI/STI since this is for AT only (286+) |
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| 58 | mov sp, RAMVARS.rgbTopOfStack-4 |
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| 59 | pop di ; DI before stack change |
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| 60 | pop ds ; DS before stack change |
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[417] | 61 | |
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| 62 | ; Call INT 13h |
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| 63 | pushf |
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| 64 | push cs |
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| 65 | call Int13h_DiskFunctionsHandler |
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| 66 | |
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| 67 | ; Restore stack (we must not corrupt FLAGS!) |
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| 68 | %ifdef USE_386 |
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| 69 | lss sp, [ss:RAMVARS.fpInt13hEntryStack] |
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| 70 | %else |
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[525] | 71 | cli |
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[417] | 72 | mov sp, [ss:RAMVARS.fpInt13hEntryStack] |
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| 73 | mov ss, [ss:RAMVARS.fpInt13hEntryStack+2] |
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[525] | 74 | sti |
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[417] | 75 | %endif |
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| 76 | retf 2 ; Skip FLAGS from stack |
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| 77 | %endif ; RELOCATE_INT13H_STACK |
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| 78 | |
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| 79 | |
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| 80 | ;-------------------------------------------------------------------- |
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| 81 | ; Int 13h software interrupt handler. |
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[3] | 82 | ; Jumps to specific function defined in AH. |
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| 83 | ; |
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[148] | 84 | ; Note to developers: Do not make recursive INT 13h calls! |
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| 85 | ; |
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| 86 | ; Int13h_DiskFunctionsHandler |
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[3] | 87 | ; Parameters: |
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| 88 | ; AH: Bios function |
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| 89 | ; DL: Drive number |
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[148] | 90 | ; Other: Depends on function |
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[3] | 91 | ; Returns: |
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| 92 | ; Depends on function |
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| 93 | ;-------------------------------------------------------------------- |
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| 94 | ALIGN JUMP_ALIGN |
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[148] | 95 | Int13h_DiskFunctionsHandler: |
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[525] | 96 | %ifndef RELOCATE_INT13H_STACK |
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[3] | 97 | sti ; Enable interrupts |
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[525] | 98 | %endif |
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[150] | 99 | cld ; String instructions to increment pointers |
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[443] | 100 | CREATE_FRAME_INTPACK_TO_SSBP SIZE_OF_IDEPACK_WITHOUT_INTPACK |
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[3] | 101 | call RamVars_GetSegmentToDS |
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[294] | 102 | |
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[493] | 103 | %ifdef MODULE_DRIVEXLATE |
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[148] | 104 | call DriveXlate_ToOrBack |
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[414] | 105 | mov [RAMVARS.xlateVars+XLATEVARS.bXlatedDrv], dl |
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[395] | 106 | %endif |
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[322] | 107 | call FindDPT_ForDriveNumberInDL ; DS:DI points to our DPT, or NULL if not our drive |
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| 108 | jc SHORT .NotOurDrive ; DPT not found so this is not one of our drives |
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[258] | 109 | |
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[294] | 110 | .OurFunction: |
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[3] | 111 | ; Jump to correct BIOS function |
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[148] | 112 | eMOVZX bx, ah |
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[445] | 113 | eSHL_IM bx, 1 |
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[165] | 114 | cmp ah, 25h ; Possible EBIOS function? |
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[417] | 115 | %ifndef MODULE_EBIOS |
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| 116 | ja SHORT UnsupportedFunction |
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| 117 | jmp [cs:bx+g_rgw13hFuncJump] ; Jump to BIOS function |
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| 118 | |
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| 119 | %else ; If using MODULE_EBIOS |
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[165] | 120 | ja SHORT .JumpToEbiosFunction |
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[148] | 121 | jmp [cs:bx+g_rgw13hFuncJump] ; Jump to BIOS function |
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[3] | 122 | |
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[165] | 123 | ALIGN JUMP_ALIGN |
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| 124 | .JumpToEbiosFunction: |
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[542] | 125 | test BYTE [di+DPT.bFlagsLow], FLGL_DPT_LBA |
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[417] | 126 | jz SHORT UnsupportedFunction ; No eINT 13h for CHS drives |
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[322] | 127 | sub bl, 41h<<1 ; BX = Offset to eINT 13h jump table |
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[417] | 128 | jb SHORT UnsupportedFunction |
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[167] | 129 | cmp ah, 48h |
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[417] | 130 | ja SHORT UnsupportedFunction |
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[165] | 131 | jmp [cs:bx+g_rgwEbiosFunctionJumpTable] |
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[417] | 132 | %endif ; MODULE_EBIOS |
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[3] | 133 | |
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[417] | 134 | |
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[322] | 135 | ALIGN JUMP_ALIGN |
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| 136 | .NotOurDrive: |
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| 137 | test ah, ah |
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| 138 | jz SHORT .OurFunction ; We handle all function 0h requests (resets) |
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[260] | 139 | |
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[322] | 140 | %ifndef MODULE_SERIAL_FLOPPY |
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| 141 | ; Without floppy support, we handle only hard disk traffic for function 08h. |
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| 142 | test dl, dl |
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| 143 | jns SHORT Int13h_DirectCallToAnotherBios |
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| 144 | %endif |
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| 145 | ; With floppy support, we handle all traffic for function 08h, as we need to wrap both hard disk and floppy drive counts. |
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| 146 | cmp ah, 8 |
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| 147 | je SHORT .OurFunction |
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| 148 | ; Fall to Int13h_DirectCallToAnotherBios |
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| 149 | |
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[417] | 150 | |
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[3] | 151 | ;-------------------------------------------------------------------- |
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[417] | 152 | ; UnsupportedFunction |
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[3] | 153 | ; Int13h_DirectCallToAnotherBios |
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| 154 | ; Parameters: |
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[148] | 155 | ; DL: Translated drive number |
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[3] | 156 | ; DS: RAMVARS segment |
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[150] | 157 | ; SS:BP: Ptr to IDEPACK |
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[148] | 158 | ; BX, DI: Corrupted on Int13h_DiskFunctionsHandler |
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[161] | 159 | ; Other: Function specific INT 13h parameters |
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[3] | 160 | ; Returns: |
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| 161 | ; Depends on function |
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| 162 | ; Corrupts registers: |
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| 163 | ; Flags |
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| 164 | ;-------------------------------------------------------------------- |
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| 165 | ALIGN JUMP_ALIGN |
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[417] | 166 | UnsupportedFunction: |
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[3] | 167 | Int13h_DirectCallToAnotherBios: |
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[148] | 168 | call ExchangeCurrentInt13hHandlerWithOldInt13hHandler |
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[150] | 169 | mov bx, [bp+IDEPACK.intpack+INTPACK.bx] |
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| 170 | mov di, [bp+IDEPACK.intpack+INTPACK.di] |
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| 171 | mov ds, [bp+IDEPACK.intpack+INTPACK.ds] |
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| 172 | push WORD [bp+IDEPACK.intpack+INTPACK.flags] |
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[148] | 173 | popf |
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| 174 | push bp |
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[150] | 175 | mov bp, [bp+IDEPACK.intpack+INTPACK.bp] |
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[148] | 176 | int BIOS_DISK_INTERRUPT_13h ; Can safely do as much recursion as it wants |
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[3] | 177 | |
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[148] | 178 | ; Store returned values to INTPACK |
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| 179 | pop bp ; Standard INT 13h functions never uses BP as return register |
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| 180 | %ifdef USE_386 |
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[322] | 181 | ; mov [bp+IDEPACK.intpack+INTPACK.gs], gs |
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| 182 | ; mov [bp+IDEPACK.intpack+INTPACK.fs], fs |
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[148] | 183 | %endif |
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[150] | 184 | mov [bp+IDEPACK.intpack+INTPACK.es], es |
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| 185 | mov [bp+IDEPACK.intpack+INTPACK.ds], ds |
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| 186 | mov [bp+IDEPACK.intpack+INTPACK.di], di |
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| 187 | mov [bp+IDEPACK.intpack+INTPACK.si], si |
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| 188 | mov [bp+IDEPACK.intpack+INTPACK.bx], bx |
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[493] | 189 | %ifdef MODULE_DRIVEXLATE |
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[150] | 190 | mov [bp+IDEPACK.intpack+INTPACK.dh], dh |
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[414] | 191 | %else |
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| 192 | mov [bp+IDEPACK.intpack+INTPACK.dx], dx |
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| 193 | %endif |
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[150] | 194 | mov [bp+IDEPACK.intpack+INTPACK.cx], cx |
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| 195 | mov [bp+IDEPACK.intpack+INTPACK.ax], ax |
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[148] | 196 | pushf |
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[150] | 197 | pop WORD [bp+IDEPACK.intpack+INTPACK.flags] |
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[148] | 198 | call RamVars_GetSegmentToDS |
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[414] | 199 | |
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[493] | 200 | %ifdef MODULE_DRIVEXLATE |
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[414] | 201 | cmp dl, [RAMVARS.xlateVars+XLATEVARS.bXlatedDrv] ; DL is still drive number? |
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[148] | 202 | je SHORT .ExchangeInt13hHandlers |
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[414] | 203 | mov [bp+IDEPACK.intpack+INTPACK.dl], dl ; Something is returned in DL |
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[148] | 204 | ALIGN JUMP_ALIGN |
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| 205 | .ExchangeInt13hHandlers: |
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[414] | 206 | %endif |
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| 207 | |
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[249] | 208 | %ifdef USE_186 |
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| 209 | push Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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| 210 | jmp SHORT ExchangeCurrentInt13hHandlerWithOldInt13hHandler |
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| 211 | %else |
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[148] | 212 | call ExchangeCurrentInt13hHandlerWithOldInt13hHandler |
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[249] | 213 | jmp SHORT Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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| 214 | %endif |
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[3] | 215 | |
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[417] | 216 | |
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[260] | 217 | %ifdef MODULE_SERIAL_FLOPPY |
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| 218 | ;-------------------------------------------------------------------- |
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| 219 | ; Int13h_ReturnSuccessForFloppy |
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| 220 | ; |
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| 221 | ; Some operations, such as format of a floppy disk track, should just |
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| 222 | ; return success, while for hard disks it should be treated as unsupported. |
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| 223 | ;-------------------------------------------------------------------- |
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| 224 | ALIGN JUMP_ALIGN |
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| 225 | Int13h_ReturnSuccessForFloppy: |
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| 226 | test dl, dl |
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[417] | 227 | js SHORT UnsupportedFunction |
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[294] | 228 | xor ah, ah |
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[417] | 229 | jmp SHORT Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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[260] | 230 | %endif |
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[3] | 231 | |
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[417] | 232 | |
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[3] | 233 | ;-------------------------------------------------------------------- |
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[249] | 234 | ; Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAHandTransferredSectorsFromCL |
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| 235 | ; Parameters: |
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| 236 | ; AH: BIOS Error code |
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| 237 | ; CL: Number of sectors actually transferred |
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| 238 | ; SS:BP: Ptr to IDEPACK |
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| 239 | ; Returns: |
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| 240 | ; All registers are loaded from INTPACK |
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| 241 | ;-------------------------------------------------------------------- |
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| 242 | ALIGN JUMP_ALIGN |
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| 243 | Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAHandTransferredSectorsFromCL: |
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| 244 | mov [bp+IDEPACK.intpack+INTPACK.al], cl |
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| 245 | ; Fall to Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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| 246 | |
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[417] | 247 | |
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[249] | 248 | ;-------------------------------------------------------------------- |
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[148] | 249 | ; Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH |
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| 250 | ; Int13h_ReturnFromHandlerWithoutStoringErrorCode |
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[32] | 251 | ; Parameters: |
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[148] | 252 | ; AH: BIOS Error code |
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[150] | 253 | ; SS:BP: Ptr to IDEPACK |
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[32] | 254 | ; Returns: |
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[148] | 255 | ; All registers are loaded from INTPACK |
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[32] | 256 | ;-------------------------------------------------------------------- |
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| 257 | ALIGN JUMP_ALIGN |
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[148] | 258 | Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH: |
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[258] | 259 | %ifdef MODULE_SERIAL_FLOPPY |
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| 260 | mov al, [bp+IDEPACK.intpack+INTPACK.dl] |
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[294] | 261 | Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH_ALHasDriveNumber: |
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[258] | 262 | call Int13h_SetErrorCodeToBdaAndToIntpackInSSBPfromAH_ALHasDriveNumber |
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[414] | 263 | |
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[258] | 264 | %else |
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[150] | 265 | call Int13h_SetErrorCodeToBdaAndToIntpackInSSBPfromAH |
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[258] | 266 | %endif |
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[414] | 267 | |
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[148] | 268 | Int13h_ReturnFromHandlerWithoutStoringErrorCode: |
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[417] | 269 | ; Always return with interrupts enabled since there are programs that rely |
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| 270 | ; on INT 13h to enable interrupts. |
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| 271 | or BYTE [bp+IDEPACK.intpack+INTPACK.flags+1], (FLG_FLAGS_IF>>8) |
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| 272 | mov sp, bp ; This makes possible to exit anytime, no matter what is on stack |
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[443] | 273 | RESTORE_FRAME_INTPACK_FROM_SSBP SIZE_OF_IDEPACK_WITHOUT_INTPACK |
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[32] | 274 | |
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| 275 | |
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| 276 | ;-------------------------------------------------------------------- |
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[148] | 277 | ; Int13h_CallPreviousInt13hHandler |
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[3] | 278 | ; Parameters: |
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[148] | 279 | ; AH: INT 13h function to call |
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| 280 | ; DL: Drive number |
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| 281 | ; DS: RAMVARS segment |
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[3] | 282 | ; Returns: |
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| 283 | ; Depends on function |
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[294] | 284 | ; NOTE: ES:DI needs to be returned from the previous interrupt |
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[258] | 285 | ; handler, for floppy DPT in function 08h |
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[3] | 286 | ; Corrupts registers: |
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[258] | 287 | ; None |
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[3] | 288 | ;-------------------------------------------------------------------- |
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| 289 | ALIGN JUMP_ALIGN |
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[148] | 290 | Int13h_CallPreviousInt13hHandler: |
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| 291 | call ExchangeCurrentInt13hHandlerWithOldInt13hHandler |
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| 292 | int BIOS_DISK_INTERRUPT_13h |
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[258] | 293 | ;;; fall-through to ExchangeCurrentInt13hHandlerWithOldInt13hHandler |
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[35] | 294 | |
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[3] | 295 | ;-------------------------------------------------------------------- |
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[148] | 296 | ; ExchangeCurrentInt13hHandlerWithOldInt13hHandler |
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[3] | 297 | ; Parameters: |
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| 298 | ; DS: RAMVARS segment |
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| 299 | ; Returns: |
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[148] | 300 | ; Nothing |
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[3] | 301 | ; Corrupts registers: |
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[258] | 302 | ; Nothing |
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| 303 | ; Note: Flags are preserved |
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[3] | 304 | ;-------------------------------------------------------------------- |
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| 305 | ALIGN JUMP_ALIGN |
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[148] | 306 | ExchangeCurrentInt13hHandlerWithOldInt13hHandler: |
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| 307 | push es |
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[258] | 308 | push si |
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| 309 | LOAD_BDA_SEGMENT_PRESERVE_FLAGS_TO es, si |
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| 310 | mov si, [RAMVARS.fpOldI13h] |
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[150] | 311 | cli |
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[258] | 312 | xchg si, [es:BIOS_DISK_INTERRUPT_13h*4] |
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| 313 | mov [RAMVARS.fpOldI13h], si |
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| 314 | mov si, [RAMVARS.fpOldI13h+2] |
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| 315 | xchg si, [es:BIOS_DISK_INTERRUPT_13h*4+2] |
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[181] | 316 | sti |
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[258] | 317 | mov [RAMVARS.fpOldI13h+2], si |
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| 318 | pop si |
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[148] | 319 | pop es |
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| 320 | ret |
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[28] | 321 | |
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[35] | 322 | |
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[150] | 323 | ;-------------------------------------------------------------------- |
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| 324 | ; Int13h_SetErrorCodeToBdaAndToIntpackInSSBPfromAH |
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| 325 | ; Int13h_SetErrorCodeToIntpackInSSBPfromAH |
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| 326 | ; Parameters: |
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| 327 | ; AH: BIOS error code (00h = no error) |
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| 328 | ; SS:BP: Ptr to IDEPACK |
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| 329 | ; Returns: |
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| 330 | ; SS:BP: Ptr to IDEPACK with error condition set |
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| 331 | ; Corrupts registers: |
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| 332 | ; DS, DI |
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| 333 | ;-------------------------------------------------------------------- |
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| 334 | ALIGN JUMP_ALIGN |
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[258] | 335 | %ifdef MODULE_SERIAL_FLOPPY |
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| 336 | Int13h_SetErrorCodeToBdaAndToIntpackInSSBPfromAH_ALHasDriveNumber: |
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| 337 | ; Store error code to BDA |
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| 338 | mov bx, BDA.bHDLastSt |
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| 339 | test al, al |
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[414] | 340 | js SHORT .HardDisk |
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[258] | 341 | mov bl, BDA.bFDRetST & 0xff |
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| 342 | .HardDisk: |
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| 343 | LOAD_BDA_SEGMENT_TO ds, di |
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[294] | 344 | mov [bx], ah |
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[417] | 345 | ; Fall to Int13h_SetErrorCodeToIntpackInSSBPfromAH |
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| 346 | |
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[258] | 347 | %else |
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[150] | 348 | Int13h_SetErrorCodeToBdaAndToIntpackInSSBPfromAH: |
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| 349 | ; Store error code to BDA |
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[294] | 350 | LOAD_BDA_SEGMENT_TO ds, di |
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[150] | 351 | mov [BDA.bHDLastSt], ah |
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[417] | 352 | ; Fall to Int13h_SetErrorCodeToIntpackInSSBPfromAH |
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[258] | 353 | %endif |
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[35] | 354 | |
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[150] | 355 | ; Store error code to INTPACK |
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| 356 | Int13h_SetErrorCodeToIntpackInSSBPfromAH: |
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| 357 | mov [bp+IDEPACK.intpack+INTPACK.ah], ah |
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| 358 | test ah, ah |
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| 359 | jnz SHORT .SetCFtoIntpack |
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| 360 | and BYTE [bp+IDEPACK.intpack+INTPACK.flags], ~FLG_FLAGS_CF |
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| 361 | ret |
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| 362 | .SetCFtoIntpack: |
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| 363 | or BYTE [bp+IDEPACK.intpack+INTPACK.flags], FLG_FLAGS_CF |
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| 364 | ret |
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| 365 | |
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| 366 | |
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[3] | 367 | ; Jump table for correct BIOS function |
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| 368 | ALIGN WORD_ALIGN |
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| 369 | g_rgw13hFuncJump: |
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[417] | 370 | dw AH0h_HandlerForDiskControllerReset ; 00h, Disk Controller Reset (All) |
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| 371 | dw AH1h_HandlerForReadDiskStatus ; 01h, Read Disk Status (All) |
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| 372 | dw AH2h_HandlerForReadDiskSectors ; 02h, Read Disk Sectors (All) |
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| 373 | dw AH3h_HandlerForWriteDiskSectors ; 03h, Write Disk Sectors (All) |
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| 374 | dw AH4h_HandlerForVerifyDiskSectors ; 04h, Verify Disk Sectors (All) |
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[260] | 375 | %ifdef MODULE_SERIAL_FLOPPY |
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[417] | 376 | dw Int13h_ReturnSuccessForFloppy ; 05h, Format Disk Track (XT, AT, EISA) |
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[260] | 377 | %else |
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[417] | 378 | dw UnsupportedFunction ; 05h, Format Disk Track (XT, AT, EISA) |
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[260] | 379 | %endif |
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[417] | 380 | dw UnsupportedFunction ; 06h, Format Disk Track with Bad Sectors (XT) |
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| 381 | dw UnsupportedFunction ; 07h, Format Multiple Cylinders (XT) |
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| 382 | dw AH8h_HandlerForReadDiskDriveParameters ; 08h, Read Disk Drive Parameters (All) |
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| 383 | dw AH9h_HandlerForInitializeDriveParameters ; 09h, Initialize Drive Parameters (All) |
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| 384 | dw UnsupportedFunction ; 0Ah, Read Disk Sectors with ECC (XT, AT, EISA) |
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| 385 | dw UnsupportedFunction ; 0Bh, Write Disk Sectors with ECC (XT, AT, EISA) |
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| 386 | dw AHCh_HandlerForSeek ; 0Ch, Seek (All) |
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[507] | 387 | dw AH9h_HandlerForInitializeDriveParameters ; 0Dh, Alternate Disk Reset (All) |
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[417] | 388 | dw UnsupportedFunction ; 0Eh, Read Sector Buffer (XT, PS/1), ESDI Undocumented Diagnostic (PS/2) |
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| 389 | dw UnsupportedFunction ; 0Fh, Write Sector Buffer (XT, PS/1), ESDI Undocumented Diagnostic (PS/2) |
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| 390 | dw AH10h_HandlerForCheckDriveReady ; 10h, Check Drive Ready (All) |
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| 391 | dw AH11h_HandlerForRecalibrate ; 11h, Recalibrate (All) |
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| 392 | dw UnsupportedFunction ; 12h, Controller RAM Diagnostic (XT) |
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| 393 | dw UnsupportedFunction ; 13h, Drive Diagnostic (XT) |
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[540] | 394 | dw AH10h_HandlerForCheckDriveReady ; 14h, Controller Internal Diagnostic (All) |
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[417] | 395 | dw AH15h_HandlerForReadDiskDriveSize ; 15h, Read Disk Drive Size (AT+) |
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| 396 | dw UnsupportedFunction ; 16h, |
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| 397 | dw UnsupportedFunction ; 17h, |
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| 398 | dw UnsupportedFunction ; 18h, |
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| 399 | dw UnsupportedFunction ; 19h, Park Heads (PS/2) |
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| 400 | dw UnsupportedFunction ; 1Ah, Format ESDI Drive (PS/2) |
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| 401 | dw UnsupportedFunction ; 1Bh, Get ESDI Manufacturing Header (PS/2) |
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| 402 | dw UnsupportedFunction ; 1Ch, ESDI Special Functions (PS/2) |
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| 403 | dw UnsupportedFunction ; 1Dh, |
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[493] | 404 | %ifdef MODULE_8BIT_IDE_ADVANCED |
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[471] | 405 | dw AH1Eh_HandlerForXTCFfeatures ; 1Eh, Lo-tech XT-CF features (XTIDE Universal BIOS) |
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| 406 | %else |
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[525] | 407 | dw UnsupportedFunction ; 1Eh, |
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[471] | 408 | %endif |
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[417] | 409 | dw UnsupportedFunction ; 1Fh, |
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| 410 | dw UnsupportedFunction ; 20h, |
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| 411 | dw UnsupportedFunction ; 21h, Read Disk Sectors, Multiple Blocks (PS/1) |
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| 412 | dw UnsupportedFunction ; 22h, Write Disk Sectors, Multiple Blocks (PS/1) |
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| 413 | dw AH23h_HandlerForSetControllerFeatures ; 23h, Set Controller Features Register (PS/1) |
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| 414 | dw AH24h_HandlerForSetMultipleBlocks ; 24h, Set Multiple Blocks (PS/1) |
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| 415 | dw AH25h_HandlerForGetDriveInformation ; 25h, Get Drive Information (PS/1) |
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[165] | 416 | |
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[176] | 417 | %ifdef MODULE_EBIOS |
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[165] | 418 | g_rgwEbiosFunctionJumpTable: |
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[417] | 419 | dw AH41h_HandlerForCheckIfExtensionsPresent ; 41h, Check if Extensions Present (EBIOS)* |
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| 420 | dw AH42h_HandlerForExtendedReadSectors ; 42h, Extended Read Sectors (EBIOS)* |
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| 421 | dw AH43h_HandlerForExtendedWriteSectors ; 43h, Extended Write Sectors (EBIOS)* |
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| 422 | dw AH44h_HandlerForExtendedVerifySectors ; 44h, Extended Verify Sectors (EBIOS)* |
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| 423 | dw UnsupportedFunction ; 45h, Lock and Unlock Drive (EBIOS)*** |
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| 424 | dw UnsupportedFunction ; 46h, Eject Media Request (EBIOS)*** |
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| 425 | dw AH47h_HandlerForExtendedSeek ; 47h, Extended Seek (EBIOS)* |
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| 426 | dw AH48h_HandlerForGetExtendedDriveParameters ; 48h, Get Extended Drive Parameters (EBIOS)* |
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| 427 | ; dw UnsupportedFunction ; 49h, Get Extended Disk Change Status (EBIOS)*** |
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| 428 | ; dw UnsupportedFunction ; 4Ah, Initiate Disk Emulation (Bootable CD-ROM) |
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| 429 | ; dw UnsupportedFunction ; 4Bh, Terminate Disk Emulation (Bootable CD-ROM) |
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| 430 | ; dw UnsupportedFunction ; 4Ch, Initiate Disk Emulation and Boot (Bootable CD-ROM) |
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| 431 | ; dw UnsupportedFunction ; 4Dh, Return Boot Catalog (Bootable CD-ROM) |
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| 432 | ; dw UnsupportedFunction ; 4Eh, Set Hardware Configuration (EBIOS)** |
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[150] | 433 | ; |
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| 434 | ; * = Enhanced Drive Access Support (minimum required EBIOS functions) |
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| 435 | ; ** = Enhanced Disk Drive (EDD) Support |
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| 436 | ; *** = Drive Locking and Ejecting Support |
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[181] | 437 | %endif |
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