| 1 | ; Project name : Assembly Library
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| 2 | ; Description : Displays drive dialog.
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| 3 |
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| 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
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| 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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| 12 | ;
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| 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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| 16 | ; GNU General Public License for more details.
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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| 18 | ;
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| 19 |
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| 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 | ; DialogDrive_GetDriveWithIoInDSSI
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| 25 | ; Parameters:
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| 26 | ; DS:SI: Ptr to DRIVE_DIALOG_IO
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| 27 | ; SS:BP: Ptr to parent MENU
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| 28 | ; Returns:
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| 29 | ; Nothing
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| 30 | ; Corrupts registers:
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| 31 | ; AX, BX, CX, DX, SI, DI
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| 32 | ;--------------------------------------------------------------------
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| 33 | ALIGN JUMP_ALIGN
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| 34 | DialogDrive_GetDriveWithIoInDSSI:
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| 35 | mov bx, DriveEventHandler
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| 36 | mov BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], TRUE
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| 37 | jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX
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| 38 |
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| 39 |
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| 40 | ;--------------------------------------------------------------------
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| 41 | ; DriveEventHandler
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| 42 | ; Common parameters for all events:
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| 43 | ; BX: Menu event (anything from MENUEVENT struct)
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| 44 | ; SS:BP: Ptr to DIALOG
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| 45 | ; Common return values for all events:
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| 46 | ; CF: Set if event processed
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| 47 | ; Cleared if event not processed
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| 48 | ; Corrupts registers:
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| 49 | ; All
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| 50 | ;--------------------------------------------------------------------
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| 51 | ALIGN JUMP_ALIGN
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| 52 | DriveEventHandler:
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| 53 | jmp [cs:bx+.rgfnEventHandlers]
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| 54 |
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| 55 |
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| 56 | ALIGN JUMP_ALIGN
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| 57 | .InitializeMenuinitFromDSSI:
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| 58 | xor ax, ax
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| 59 | call Dialog_EventInitializeMenuinitFromDSSIforSingleItemWithHighlightedItemInAX
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| 60 | call Drive_GetFlagsForAvailableDrivesToDXAX
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| 61 | mov [bp+MENU.dwUserData], ax
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| 62 | mov [bp+MENU.dwUserData+2], dx
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| 63 |
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| 64 | call Bit_GetSetCountToCXfromDXAX
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| 65 | mov [bp+MENUINIT.wItems], cx
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| 66 |
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| 67 | dec cx ; Items initialized to one. Ignore it.
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| 68 | add cl, [bp+MENUINIT.bHeight]
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| 69 | CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
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| 70 | MIN_U cl, ah
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| 71 | mov [bp+MENUINIT.bHeight], cl
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| 72 | ret
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| 73 |
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| 74 |
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| 75 | ALIGN JUMP_ALIGN
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| 76 | .ItemSelectedFromCX:
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| 77 | call ConvertDriveLetterToBLfromItemIndexInCX
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| 78 | lds si, [bp+DIALOG.fpDialogIO]
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| 79 | mov BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], FALSE
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| 80 | mov [si+DRIVE_DIALOG_IO.cReturnDriveLetter], bl
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| 81 | sub bl, 'A'
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| 82 | mov [si+DRIVE_DIALOG_IO.bReturnDriveNumber], bl
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| 83 | jmp MenuInit_CloseMenuWindow
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| 84 |
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| 85 |
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| 86 | ALIGN JUMP_ALIGN
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| 87 | .RefreshItemFromCX:
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| 88 | push bp
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| 89 |
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| 90 | call ConvertDriveLetterToBLfromItemIndexInCX
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| 91 | mov bp, sp
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| 92 | push bx
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| 93 | mov si, g_szDriveFormat
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| 94 | CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
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| 95 |
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| 96 | pop bp
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| 97 | stc
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| 98 | ret
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| 99 |
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| 100 |
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| 101 | .rgfnEventHandlers:
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| 102 | istruc MENUEVENT
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| 103 | at MENUEVENT.InitializeMenuinitFromDSSI, dw .InitializeMenuinitFromDSSI
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| 104 | at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu
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| 105 | at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled
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| 106 | at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled
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| 107 | at MENUEVENT.ItemSelectedFromCX, dw .ItemSelectedFromCX
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| 108 | at MENUEVENT.KeyStrokeInAX, dw Dialog_EventNotHandled
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| 109 | at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle
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| 110 | at MENUEVENT.RefreshInformation, dw Dialog_EventRefreshInformation
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| 111 | at MENUEVENT.RefreshItemFromCX, dw .RefreshItemFromCX
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| 112 | iend
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| 113 |
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| 114 |
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| 115 | ;--------------------------------------------------------------------
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| 116 | ; ConvertDriveLetterToBLfromItemIndexInCX
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| 117 | ; Parameters:
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| 118 | ; CX: Item index
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| 119 | ; SS:BP: Ptr to DIALOG
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| 120 | ; Returns:
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| 121 | ; BL: Drive letter
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| 122 | ; Corrupts registers:
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| 123 | ; AX, CX, DX
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| 124 | ;--------------------------------------------------------------------
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| 125 | ALIGN JUMP_ALIGN
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| 126 | ConvertDriveLetterToBLfromItemIndexInCX:
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| 127 | inc cx ; Index to count
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| 128 | mov bl, 'A'-1
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| 129 | mov ax, [bp+MENU.dwUserData]
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| 130 | mov dx, [bp+MENU.dwUserData+2]
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| 131 | ALIGN JUMP_ALIGN
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| 132 | .CheckNextBit:
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| 133 | inc bx ; Increment drive letter
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| 134 | shr dx, 1
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| 135 | rcr ax, 1
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| 136 | jnc SHORT .CheckNextBit
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| 137 | loop .CheckNextBit
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| 138 | ret
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