[41] | 1 | ; File name : DialogFile.asm |
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| 2 | ; Project name : Assembly Library |
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| 3 | ; Created date : 6.9.2010 |
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[50] | 4 | ; Last update : 9.10.2010 |
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[41] | 5 | ; Author : Tomi Tilli |
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| 6 | ; Description : Displays file dialog. |
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| 7 | |
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| 8 | |
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| 9 | CURRENTDIR_CHARACTERS EQU 002Eh |
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| 10 | UPDIR_CHARACTERS EQU 2E2Eh |
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| 11 | |
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| 12 | ; Section containing code |
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| 13 | SECTION .text |
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| 14 | |
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| 15 | ;-------------------------------------------------------------------- |
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| 16 | ; DialogFile_GetFileNameWithIoInDSSI |
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| 17 | ; Parameters: |
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| 18 | ; DS:SI: Ptr to FILE_DIALOG_IO |
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| 19 | ; SS:BP: Ptr to parent MENU |
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| 20 | ; Returns: |
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| 21 | ; Nothing |
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| 22 | ; Corrupts registers: |
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| 23 | ; AX, BX, CX, DX, SI, DI |
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| 24 | ;-------------------------------------------------------------------- |
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| 25 | ALIGN JUMP_ALIGN |
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| 26 | DialogFile_GetFileNameWithIoInDSSI: |
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| 27 | mov bx, FileEventHandler |
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| 28 | mov BYTE [si+FILE_DIALOG_IO.bUserCancellation], TRUE |
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| 29 | jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX |
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| 30 | |
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| 31 | |
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| 32 | ;-------------------------------------------------------------------- |
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| 33 | ; FileEventHandler |
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| 34 | ; Common parameters for all events: |
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| 35 | ; BX: Menu event (anything from MENUEVENT struct) |
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| 36 | ; SS:BP: Ptr to DIALOG |
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| 37 | ; Common return values for all events: |
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| 38 | ; CF: Set if event processed |
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| 39 | ; Cleared if event not processed |
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| 40 | ; Corrupts registers: |
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| 41 | ; All |
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| 42 | ;-------------------------------------------------------------------- |
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| 43 | ALIGN JUMP_ALIGN |
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| 44 | FileEventHandler: |
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| 45 | jmp [cs:bx+.rgfnEventHandlers] |
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| 46 | |
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| 47 | |
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| 48 | ALIGN JUMP_ALIGN |
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| 49 | .ItemSelectedFromCX: |
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| 50 | call LoadItemStringBufferToESDI |
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| 51 | call LineSplitter_GetOffsetToSIforLineCXfromStringInESDI |
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| 52 | push es |
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| 53 | pop ds |
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| 54 | jmp ParseSelectionFromItemLineInDSSI |
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| 55 | |
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| 56 | |
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| 57 | ALIGN JUMP_ALIGN |
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| 58 | .RefreshInformation: |
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| 59 | call GetInfoLinesToCXandDialogFlagsToAX |
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| 60 | mov si, [cs:.rgszInfoStringLookup] |
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| 61 | xor bx, bx |
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| 62 | xchg dx, ax |
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| 63 | ALIGN JUMP_ALIGN |
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| 64 | .InfoLineLoop: |
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| 65 | shr dl, 1 |
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| 66 | jnc SHORT .CheckNextFlag |
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| 67 | mov si, [cs:bx+.rgszInfoStringLookup] |
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| 68 | push bx |
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| 69 | CALL_DISPLAY_LIBRARY PrintNullTerminatedStringFromCSSI |
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| 70 | pop bx |
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| 71 | ALIGN JUMP_ALIGN |
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| 72 | .CheckNextFlag: |
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| 73 | inc bx |
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| 74 | inc bx |
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| 75 | loop .InfoLineLoop |
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| 76 | stc ; Event processed |
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| 77 | ret |
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| 78 | |
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| 79 | |
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| 80 | ALIGN WORD_ALIGN |
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| 81 | .rgszInfoStringLookup: |
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| 82 | dw g_szChangeDrive |
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| 83 | dw g_szSelectDirectory |
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| 84 | dw g_szCreateNew |
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| 85 | |
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| 86 | .rgfnEventHandlers: |
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| 87 | istruc MENUEVENT |
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| 88 | at MENUEVENT.InitializeMenuinitFromDSSI, dw InitializeMenuinitFromSSBP |
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| 89 | at MENUEVENT.ExitMenu, dw Dialog_EventNotHandled |
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| 90 | at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled |
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| 91 | at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled |
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| 92 | at MENUEVENT.ItemSelectedFromCX, dw .ItemSelectedFromCX |
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| 93 | at MENUEVENT.KeyStrokeInAX, dw HandleFunctionKeyFromAH |
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| 94 | at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle |
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| 95 | at MENUEVENT.RefreshInformation, dw .RefreshInformation |
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| 96 | at MENUEVENT.RefreshItemFromCX, dw Dialog_EventRefreshItemFromCX |
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| 97 | iend |
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| 98 | |
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| 99 | |
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| 100 | ;-------------------------------------------------------------------- |
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| 101 | ; InitializeMenuinitFromSSBP |
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| 102 | ; Parameters: |
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| 103 | ; DS:SI: Ptr to MENUINIT to initialize (also points to DIALOG) |
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| 104 | ; SS:BP: Ptr to DIALOG |
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| 105 | ; Returns: |
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| 106 | ; Nothing |
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| 107 | ; Corrupts registers: |
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| 108 | ; All, except BP |
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| 109 | ;-------------------------------------------------------------------- |
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| 110 | ALIGN JUMP_ALIGN |
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| 111 | InitializeMenuinitFromSSBP: |
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| 112 | call LoadItemStringBufferToESDI |
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| 113 | call CreateStringFromCurrentDirectoryContentsToESDI |
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[46] | 114 | call LoadItemStringBufferToESDI |
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| 115 | call SortDirectoryContentsStringFromESDIwithCountInCX |
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[50] | 116 | call Memory_CopySSBPtoDSSI |
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[41] | 117 | call Dialog_EventInitializeMenuinitFromDSSI |
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| 118 | call GetInfoLinesToCXandDialogFlagsToAX |
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| 119 | mov [bp+MENUINIT.bInfoLines], cl |
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| 120 | CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH |
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| 121 | mov [bp+MENUINIT.bHeight], ah ; Always max height |
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[46] | 122 | xor ax, ax |
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| 123 | mov [bp+MENU.wHighlightedItem], ax |
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| 124 | mov [bp+MENU.wFirstVisibleItem], ax |
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[41] | 125 | ret |
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| 126 | |
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| 127 | |
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| 128 | ;-------------------------------------------------------------------- |
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| 129 | ; LoadItemStringBufferToESDI |
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| 130 | ; Parameters: |
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| 131 | ; SS:BP: Ptr to DIALOG |
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| 132 | ; Returns: |
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| 133 | ; ES:DI: Ptr to item string buffer |
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| 134 | ; Corrupts registers: |
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| 135 | ; Nothing |
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| 136 | ;-------------------------------------------------------------------- |
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| 137 | ALIGN JUMP_ALIGN |
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| 138 | LoadItemStringBufferToESDI: |
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| 139 | les di, [bp+DIALOG.fpDialogIO] |
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| 140 | les di, [es:di+FILE_DIALOG_IO.fszItemBuffer] |
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| 141 | ret |
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| 142 | |
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| 143 | |
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| 144 | ;-------------------------------------------------------------------- |
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| 145 | ; CreateStringFromCurrentDirectoryContentsToESDI |
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| 146 | ; Parameters: |
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| 147 | ; ES:DI: Buffer where to create item string |
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| 148 | ; SS:BP: Ptr to DIALOG |
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| 149 | ; Returns: |
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[46] | 150 | ; CX: Number of files or directories found |
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[41] | 151 | ; Corrupts registers: |
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[46] | 152 | ; AX, DX, SI, DI, DS, ES |
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[41] | 153 | ;-------------------------------------------------------------------- |
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| 154 | ALIGN JUMP_ALIGN |
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| 155 | CreateStringFromCurrentDirectoryContentsToESDI: |
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| 156 | lds si, [bp+DIALOG.fpDialogIO] |
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| 157 | eMOVZX cx, BYTE [si+FILE_DIALOG_IO.bFileAttributes] |
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| 158 | lds si, [si+FILE_DIALOG_IO.fpFileFilterString] |
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| 159 | call Directory_UpdateDTAForFirstMatchForDSSIwithAttributesInCX |
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| 160 | rcr cx, 1 ; Store CF |
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| 161 | call .ClearDLifInRootDirectory |
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| 162 | call Directory_GetDiskTransferAreaAddressToDSSI |
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| 163 | rcl cx, 1 ; Restore CF |
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[46] | 164 | xor cx, cx ; Clear file/directory count |
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[41] | 165 | ; Fall to .FindMatchingFilesAndWriteThemToESDI |
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| 166 | |
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| 167 | ;-------------------------------------------------------------------- |
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| 168 | ; .FindMatchingFilesAndWriteThemToESDI |
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| 169 | ; Parameters: |
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[46] | 170 | ; CX: Initial directory count |
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[41] | 171 | ; DL: Zero if root directory selected |
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| 172 | ; DS:SI: Ptr to DTA with first matching file |
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| 173 | ; ES:DI: Ptr to destination string buffer |
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| 174 | ; Returns: |
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[46] | 175 | ; CX: Incremented by number of files/directories found |
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[41] | 176 | ; Corrupts registers: |
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[46] | 177 | ; AX, DX, DI |
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[41] | 178 | ;-------------------------------------------------------------------- |
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| 179 | ;ALIGN JUMP_ALIGN |
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| 180 | .FindMatchingFilesAndWriteThemToESDI: |
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[46] | 181 | jc SHORT TerminateESDIwithNull |
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[41] | 182 | call AppendFileToBufferInESDIfromDtaInDSSI |
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| 183 | call Directory_UpdateDTAForNextMatchUsingPreviousParameters |
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| 184 | jmp SHORT .FindMatchingFilesAndWriteThemToESDI |
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| 185 | |
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| 186 | ;-------------------------------------------------------------------- |
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| 187 | ; .ClearDLifInRootDirectory |
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| 188 | ; Parameters: |
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| 189 | ; SS:BP: Ptr to DIALOG |
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| 190 | ; ES:DI: Ptr to destination string buffer |
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| 191 | ; Returns: |
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| 192 | ; DL: Cleared if in root directory |
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| 193 | ; Set if in any other directory |
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| 194 | ; Corrupts registers: |
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| 195 | ; AX, SI, DS |
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| 196 | ;-------------------------------------------------------------------- |
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| 197 | ALIGN JUMP_ALIGN |
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| 198 | .ClearDLifInRootDirectory: |
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[50] | 199 | call Memory_CopyESDItoDSSI |
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[41] | 200 | call Directory_WriteCurrentPathToDSSI |
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| 201 | mov dl, [si] |
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| 202 | ret |
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| 203 | |
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[46] | 204 | |
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[41] | 205 | ;-------------------------------------------------------------------- |
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[46] | 206 | ; TerminateESDIwithNull |
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[41] | 207 | ; Parameters: |
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| 208 | ; ES:DI: Ptr to destination string buffer |
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| 209 | ; Returns: |
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| 210 | ; Nothing |
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| 211 | ; Corrupts registers: |
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| 212 | ; AX |
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| 213 | ;-------------------------------------------------------------------- |
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| 214 | ALIGN JUMP_ALIGN |
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[46] | 215 | TerminateESDIwithNull: |
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[41] | 216 | xor ax, ax |
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| 217 | stosb |
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| 218 | ret |
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| 219 | |
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[46] | 220 | |
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[41] | 221 | ;-------------------------------------------------------------------- |
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| 222 | ; AppendFileToBufferInESDIfromDtaInDSSI |
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| 223 | ; Parameters: |
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[46] | 224 | ; CX: Files/directores found |
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[41] | 225 | ; DL: Zero if root directory selected |
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| 226 | ; DS:SI: Ptr to DTA containing file information |
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| 227 | ; ES:DI: Ptr to destination string buffer |
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| 228 | ; Returns: |
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[46] | 229 | ; CX: Incremented by number of files/directories found |
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[41] | 230 | ; DI: Updated for next file |
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| 231 | ; Corrupts registers: |
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[46] | 232 | ; AX, BX, DX |
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[41] | 233 | ;-------------------------------------------------------------------- |
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| 234 | ALIGN JUMP_ALIGN |
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| 235 | AppendFileToBufferInESDIfromDtaInDSSI: |
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| 236 | call .FilterCurrentDirectory ; We never want "." |
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| 237 | call .FilterUpDirectoryWhenInRoot ; No ".." when in root directory |
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[46] | 238 | inc cx ; Nothing filtered so increment files/directories |
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[41] | 239 | ; Fall to .PrepareBufferFormattingAndFormatFromDTAinDSSI |
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| 240 | |
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| 241 | ;-------------------------------------------------------------------- |
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| 242 | ; .PrepareBufferFormattingAndFormatFromDTAinDSSI |
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| 243 | ; Parameters: |
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| 244 | ; DS:SI: Ptr to DTA containing file information |
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| 245 | ; ES:DI: Ptr to destination string buffer |
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| 246 | ; Returns: |
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| 247 | ; DI: Updated for next file |
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| 248 | ; Corrupts registers: |
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[46] | 249 | ; AX, BX, DX |
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[41] | 250 | ;-------------------------------------------------------------------- |
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| 251 | ;ALIGN JUMP_ALIGN |
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| 252 | .PrepareBufferFormattingAndFormatFromDTAinDSSI: |
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| 253 | push bp |
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| 254 | push si |
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[46] | 255 | push cx |
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| 256 | mov bx, di |
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[41] | 257 | CALL_DISPLAY_LIBRARY PushDisplayContext |
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[48] | 258 | CALL_DISPLAY_LIBRARY PrepareOffScreenBufferInESBXtoESDI |
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[41] | 259 | |
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| 260 | call .FormatFileOrDirectoryToBufferFromDTAinDSSI |
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| 261 | |
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| 262 | CALL_DISPLAY_LIBRARY GetCharacterPointerToBXAX |
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[46] | 263 | xchg bx, ax |
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[41] | 264 | CALL_DISPLAY_LIBRARY PopDisplayContext |
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[46] | 265 | mov di, bx |
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| 266 | pop cx |
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[41] | 267 | pop si |
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| 268 | pop bp |
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| 269 | ret |
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| 270 | |
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| 271 | ;-------------------------------------------------------------------- |
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| 272 | ; .FormatFileOrDirectoryToBufferFromDTAinDSSI |
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| 273 | ; Parameters: |
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| 274 | ; DS:SI: Ptr to DTA containing file information |
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| 275 | ; Returns: |
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| 276 | ; Nothing |
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| 277 | ; Corrupts registers: |
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| 278 | ; AX, BX, CX, DX, SI, DI, BP |
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| 279 | ;-------------------------------------------------------------------- |
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| 280 | ALIGN JUMP_ALIGN |
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| 281 | .FormatFileOrDirectoryToBufferFromDTAinDSSI: |
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| 282 | mov bp, sp |
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| 283 | lea ax, [si+DTA.szFile] |
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| 284 | |
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| 285 | test BYTE [si+DTA.bFileAttributes], FLG_FILEATTR_DIRECTORY |
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| 286 | jnz SHORT .FormatDirectory |
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[46] | 287 | ; Fall to .FormatFile |
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[41] | 288 | |
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[46] | 289 | ;-------------------------------------------------------------------- |
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| 290 | ; .FormatFile |
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| 291 | ; Parameters: |
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| 292 | ; BP: SP before pushing formatting parameters |
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| 293 | ; DS:AX: Far pointer to file name |
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| 294 | ; DS:SI: Ptr to DTA containing file information |
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| 295 | ; Returns: |
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| 296 | ; Nothing |
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| 297 | ; Corrupts registers: |
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| 298 | ; AX, BX, CX, DX, SI, DI, BP |
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| 299 | ;-------------------------------------------------------------------- |
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| 300 | .FormatFile: |
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| 301 | ; Push parameters for file name |
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| 302 | xchg si, ax |
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| 303 | call String_ConvertDSSItoLowerCase |
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| 304 | xchg ax, si |
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| 305 | push ax ; Push directory name offset |
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| 306 | push ds ; Push directory name segment |
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| 307 | |
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| 308 | ; Push parameters for file size |
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[41] | 309 | mov ax, [si+DTA.dwFileSize] |
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| 310 | mov dx, [si+DTA.dwFileSize+2] |
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| 311 | xor bx, bx |
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| 312 | xor cx, cx |
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| 313 | call Size_GetSizeToAXAndCharToDLfromBXDXAXwithMagnitudeInCX |
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| 314 | mov cl, 'i' |
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| 315 | cmp dl, ' ' |
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| 316 | eCMOVE cl, dl |
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| 317 | push ax |
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| 318 | push dx |
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| 319 | push cx |
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[46] | 320 | |
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| 321 | ; Format to buffer |
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[41] | 322 | mov si, g_szFileFormat |
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| 323 | jmp SHORT .FormatStringInCSSIandReturn |
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| 324 | |
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[46] | 325 | ;-------------------------------------------------------------------- |
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| 326 | ; .FormatDirectory |
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| 327 | ; Parameters: |
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| 328 | ; BP: SP before pushing formatting parameters |
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| 329 | ; DS:AX: Far pointer to directory name |
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| 330 | ; DS:SI: Ptr to DTA containing file information |
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| 331 | ; Returns: |
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| 332 | ; Nothing |
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| 333 | ; Corrupts registers: |
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| 334 | ; AX, BX, CX, DX, SI, DI, BP |
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| 335 | ;-------------------------------------------------------------------- |
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[41] | 336 | ALIGN JUMP_ALIGN |
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| 337 | .FormatDirectory: |
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[46] | 338 | push ax ; Push directory name offset |
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| 339 | push ds ; Push directory name segment |
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[41] | 340 | mov ax, g_szSub |
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| 341 | cmp WORD [si+DTA.szFile], UPDIR_CHARACTERS |
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| 342 | eCMOVE ax, g_szUp |
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| 343 | push ax |
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| 344 | mov si, g_szDirectoryFormat |
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| 345 | ALIGN JUMP_ALIGN |
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| 346 | .FormatStringInCSSIandReturn: |
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| 347 | CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI |
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| 348 | ret |
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| 349 | |
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| 350 | ;-------------------------------------------------------------------- |
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| 351 | ; .FilterCurrentDirectory |
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| 352 | ; .FilterUpDirectoryWhenInRoot |
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| 353 | ; Parameters: |
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| 354 | ; DL: Zero if root directory selected |
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| 355 | ; DS:SI: Ptr to DTA containing file information |
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| 356 | ; Returns: |
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| 357 | ; Nothing |
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| 358 | ; Returns from AppendFileToBufferInESDIfromDtaInDSSI when filtering |
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| 359 | ; Corrupts registers: |
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| 360 | ; AX |
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| 361 | ;-------------------------------------------------------------------- |
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| 362 | ALIGN JUMP_ALIGN |
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| 363 | .FilterCurrentDirectory: |
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| 364 | cmp WORD [si+DTA.szFile], CURRENTDIR_CHARACTERS |
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| 365 | jne SHORT .ReturnWithoutFiltering |
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| 366 | add sp, BYTE 2 ; Remove return address from stack |
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| 367 | ret |
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| 368 | |
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| 369 | ALIGN JUMP_ALIGN |
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| 370 | .FilterUpDirectoryWhenInRoot: |
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| 371 | test dl, dl ; Set ZF if root directory selected |
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| 372 | jnz SHORT .ReturnWithoutFiltering |
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| 373 | cmp WORD [si+DTA.szFile], UPDIR_CHARACTERS |
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| 374 | jne SHORT .ReturnWithoutFiltering |
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| 375 | add sp, BYTE 2 ; Remove return address from stack |
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| 376 | ALIGN JUMP_ALIGN, ret |
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| 377 | .ReturnWithoutFiltering: |
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| 378 | ret |
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| 379 | |
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| 380 | |
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| 381 | ;-------------------------------------------------------------------- |
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[46] | 382 | ; SortDirectoryContentsStringFromESDIwithCountInCX |
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| 383 | ; Parameters: |
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| 384 | ; CX: Number of files and directories |
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| 385 | ; ES:DI: Buffer containing directory contents string |
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| 386 | ; SS:BP: Ptr to DIALOG |
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| 387 | ; Returns: |
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| 388 | ; Nothing |
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| 389 | ; Corrupts registers: |
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| 390 | ; AX, BX, CX, DX, SI, DI, DS, ES |
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| 391 | ;-------------------------------------------------------------------- |
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| 392 | ALIGN JUMP_ALIGN |
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| 393 | SortDirectoryContentsStringFromESDIwithCountInCX: |
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| 394 | call Memory_ExchangeDSSIwithESDI |
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| 395 | mov bx, .FileStringComparator |
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| 396 | xchg dx, cx |
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| 397 | mov cx, FILE_STRING_LENGTH |
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| 398 | jmp Sort_ItemsFromDSSIwithCountInDXsizeInCXandComparatorInBX |
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| 399 | |
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| 400 | ;-------------------------------------------------------------------- |
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| 401 | ; .FileStringComparator |
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| 402 | ; Parameters: |
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| 403 | ; CX: Item size in bytes |
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| 404 | ; DS:SI: Ptr to first item to compare |
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| 405 | ; ES:DI: Ptr to second item to compare |
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| 406 | ; Returns: |
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| 407 | ; FLAGS: Signed comparition between first and second item |
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| 408 | ; Corrupts registers: |
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| 409 | ; Nothing |
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| 410 | ;-------------------------------------------------------------------- |
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| 411 | ALIGN JUMP_ALIGN |
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| 412 | .FileStringComparator: |
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| 413 | push di |
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| 414 | push si |
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| 415 | push cx |
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| 416 | push bx |
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| 417 | |
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| 418 | mov bx, FILE_STRING_LENGTH-2 ; Zero BH |
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| 419 | cmp WORD [si], UPDIR_CHARACTERS |
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| 420 | je SHORT .ForceValueFromDSSItoBeLess |
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| 421 | mov bl, [si+bx] |
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| 422 | cmp bl, [es:di+FILE_STRING_LENGTH-2] ; 'B' for files, 'R' for directories |
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| 423 | jne SHORT .ForceValueFromDSSItoBeMoreOrLess |
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| 424 | repe cmpsb ; Two directories or two files |
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| 425 | |
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| 426 | ALIGN JUMP_ALIGN |
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| 427 | .ReturnFromComparison: |
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| 428 | pop bx |
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| 429 | pop cx |
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| 430 | pop si |
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| 431 | pop di |
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| 432 | ret |
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| 433 | ALIGN JUMP_ALIGN |
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| 434 | .ForceValueFromDSSItoBeMoreOrLess: |
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| 435 | ja SHORT .ForceValueFromDSSItoBeLess ; Directory in SI, file in DI |
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| 436 | xchg bl, bh |
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| 437 | ; Fall to ForceValueFromDSSItoBeLess |
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| 438 | ALIGN JUMP_ALIGN |
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| 439 | .ForceValueFromDSSItoBeLess: |
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| 440 | cmp bh, bl |
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| 441 | jmp SHORT .ReturnFromComparison |
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| 442 | |
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| 443 | |
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| 444 | ;-------------------------------------------------------------------- |
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[41] | 445 | ; GetInfoLinesToCXandDialogFlagsToAX |
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| 446 | ; Parameters: |
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| 447 | ; SS:BP: Ptr to DIALOG |
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| 448 | ; Returns: |
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| 449 | ; AX: Dialog flags |
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| 450 | ; CX: Number of info lines to be displayed |
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| 451 | ; Corrupts registers: |
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| 452 | ; SI, DS |
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| 453 | ;-------------------------------------------------------------------- |
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| 454 | ALIGN JUMP_ALIGN |
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| 455 | GetInfoLinesToCXandDialogFlagsToAX: |
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| 456 | xor ax, ax |
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| 457 | call GetDialogFlagsToAL |
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| 458 | jmp Bit_GetSetCountToCXfromAX |
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| 459 | |
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| 460 | ;-------------------------------------------------------------------- |
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| 461 | ; GetDialogFlagsToAL |
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| 462 | ; Parameters: |
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| 463 | ; SS:BP: Ptr to DIALOG |
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| 464 | ; Returns: |
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| 465 | ; AL: Dialog flags |
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| 466 | ; Corrupts registers: |
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| 467 | ; SI, DS |
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| 468 | ;-------------------------------------------------------------------- |
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| 469 | ALIGN JUMP_ALIGN |
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| 470 | GetDialogFlagsToAL: |
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| 471 | lds si, [bp+DIALOG.fpDialogIO] |
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| 472 | mov al, [si+FILE_DIALOG_IO.bDialogFlags] |
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| 473 | ret |
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| 474 | |
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| 475 | |
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| 476 | ;-------------------------------------------------------------------- |
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| 477 | ; ParseSelectionFromItemLineInDSSI |
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| 478 | ; Parameters: |
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| 479 | ; DS:SI: Ptr to char buffer containing file or directory to be selected |
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| 480 | ; SS:BP: Ptr to DIALOG |
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| 481 | ; Returns: |
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| 482 | ; Nothing |
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| 483 | ; Corrupts registers: |
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| 484 | ; All, except BP |
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| 485 | ;-------------------------------------------------------------------- |
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| 486 | ALIGN JUMP_ALIGN |
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| 487 | ParseSelectionFromItemLineInDSSI: |
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[46] | 488 | mov ax, [si] |
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| 489 | cmp ax, UPDIR_CHARACTERS |
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| 490 | je SHORT .ChangeToUpdir |
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| 491 | call Char_IsUpperCaseLetterInAL |
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| 492 | jc SHORT .ParseAndChangeToSubdirInDSSI |
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| 493 | ; Fall to .ParseAndSelectFileFromDSSI |
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[41] | 494 | |
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| 495 | ;-------------------------------------------------------------------- |
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[46] | 496 | ; .ParseAndSelectFileFromDSSI |
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[41] | 497 | ; Parameters: |
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[46] | 498 | ; DS:SI: NULL terminated string selected from dialog |
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[41] | 499 | ; SS:BP: Ptr to DIALOG |
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| 500 | ; Returns: |
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| 501 | ; Nothing (exits dialog) |
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| 502 | ; Corrupts registers: |
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| 503 | ; All, except BP |
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| 504 | ;-------------------------------------------------------------------- |
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[46] | 505 | .ParseAndSelectFileFromDSSI: |
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[41] | 506 | les di, [bp+DIALOG.fpDialogIO] |
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| 507 | add di, BYTE FILE_DIALOG_IO.szFile |
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| 508 | mov cx, FILENAME_BUFFER_SIZE-1 |
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[50] | 509 | call Memory_CopyCXbytesFromDSSItoESDI |
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[41] | 510 | xor ax, ax |
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| 511 | stosb ; Terminate with NULL |
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[50] | 512 | jmp SHORT CloseFileDialogAfterSuccessfullSelection |
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[41] | 513 | |
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| 514 | ;-------------------------------------------------------------------- |
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[46] | 515 | ; .ChangeToUpdir |
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[41] | 516 | ; Parameters: |
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| 517 | ; SS:BP: Ptr to DIALOG |
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| 518 | ; Returns: |
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| 519 | ; Nothing |
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| 520 | ; Corrupts registers: |
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| 521 | ; All, except BP |
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| 522 | ;-------------------------------------------------------------------- |
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| 523 | ALIGN JUMP_ALIGN |
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[46] | 524 | .ChangeToUpdir: |
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| 525 | mov si, g_szUpdir |
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| 526 | jmp SHORT .ChangeDirectoryToDSSI |
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| 527 | |
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| 528 | ;-------------------------------------------------------------------- |
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| 529 | ; .ParseAndChangeToSubdirInDSSI |
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| 530 | ; Parameters: |
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| 531 | ; DS:SI: NULL terminated string selected from dialog |
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| 532 | ; SS:BP: Ptr to DIALOG |
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| 533 | ; Returns: |
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| 534 | ; Nothing |
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| 535 | ; Corrupts registers: |
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| 536 | ; All, except BP |
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| 537 | ;-------------------------------------------------------------------- |
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| 538 | ALIGN JUMP_ALIGN |
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| 539 | .ParseAndChangeToSubdirInDSSI: |
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| 540 | mov BYTE [si+12], NULL ; Terminate with NULL (unnecessary spaces do not matter) |
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| 541 | .ChangeDirectoryToDSSI: |
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[41] | 542 | call Directory_ChangeToPathFromDSSI |
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| 543 | ; Fall to RefreshFilesToDisplay |
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| 544 | |
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| 545 | ;-------------------------------------------------------------------- |
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| 546 | ; RefreshFilesToDisplay |
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| 547 | ; Parameters: |
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| 548 | ; SS:BP: Ptr to DIALOG |
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| 549 | ; Returns: |
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| 550 | ; Nothing |
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| 551 | ; Corrupts registers: |
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| 552 | ; All, except BP |
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| 553 | ;-------------------------------------------------------------------- |
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| 554 | ALIGN JUMP_ALIGN |
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| 555 | RefreshFilesToDisplay: |
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| 556 | call InitializeMenuinitFromSSBP |
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| 557 | jmp MenuInit_RefreshMenuWindow |
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| 558 | |
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| 559 | |
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| 560 | ;-------------------------------------------------------------------- |
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| 561 | ; HandleFunctionKeyFromAH |
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| 562 | ; Parameters: |
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| 563 | ; AH: Scancode for function key |
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| 564 | ; SS:BP: Ptr to DIALOG |
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| 565 | ; Returns: |
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| 566 | ; Nothing |
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| 567 | ; Corrupts registers: |
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| 568 | ; AX, SI, DI, BP |
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| 569 | ;-------------------------------------------------------------------- |
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| 570 | ALIGN JUMP_ALIGN |
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| 571 | HandleFunctionKeyFromAH: |
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| 572 | call GetDialogFlagsToAL |
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| 573 | cmp ah, KEY_FILEDIALOG_NEW_FILE_OR_DIR |
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| 574 | je SHORT HandleFunctionKeyForCreatingNewFileOrDirectory |
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| 575 | cmp ah, KEY_FILEDIALOG_SELECT_DIRECTORY |
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| 576 | je SHORT HandleFunctionKeyForSelectingDirectoryInsteadOfFile |
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| 577 | cmp ah, KEY_FILEDIALOG_CHANGE_DRIVE |
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| 578 | je SHORT HandleFunctionKeyForDriveChange |
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| 579 | ReturnWithoutHandlingKeystroke: |
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| 580 | clc ; Event not processed |
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| 581 | ret |
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| 582 | |
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| 583 | |
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| 584 | ;-------------------------------------------------------------------- |
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| 585 | ; HandleFunctionKeyForCreatingNewFileOrDirectory |
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| 586 | ; Parameters: |
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| 587 | ; AL: File dialog flags |
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| 588 | ; SS:BP: Ptr to DIALOG |
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| 589 | ; Returns: |
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| 590 | ; Closes file dialog |
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| 591 | ; Corrupts registers: |
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| 592 | ; All, except BP |
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| 593 | ;-------------------------------------------------------------------- |
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| 594 | ALIGN JUMP_ALIGN |
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| 595 | HandleFunctionKeyForCreatingNewFileOrDirectory: |
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| 596 | test al, FLG_FILEDIALOG_NEW |
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| 597 | jz SHORT ReturnWithoutHandlingKeystroke |
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| 598 | |
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| 599 | mov cx, STRING_DIALOG_IO_size |
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| 600 | call Memory_ReserveCXbytesFromStackToDSSI |
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| 601 | call .InitializeStringDialogIoInDSSIforInputtingFileName |
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| 602 | |
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| 603 | CALL_MENU_LIBRARY GetStringWithIoInDSSI |
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| 604 | mov al, [si+STRING_DIALOG_IO.bUserCancellation] |
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| 605 | add sp, BYTE STRING_DIALOG_IO_size |
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| 606 | test al, al ; User cancellation? |
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| 607 | jnz SHORT ReturnWithoutHandlingKeystroke |
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| 608 | jmp CloseFileDialogAfterSuccessfullSelection |
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| 609 | |
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| 610 | ALIGN JUMP_ALIGN |
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| 611 | .InitializeStringDialogIoInDSSIforInputtingFileName: |
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| 612 | call InitializeNullStringsToDialogInputInDSSI |
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| 613 | mov WORD [si+DIALOG_INPUT.fszTitle], g_szEnterNewFileOrDirectory |
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| 614 | mov WORD [si+STRING_DIALOG_IO.fnCharFilter], NULL |
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| 615 | mov WORD [si+STRING_DIALOG_IO.wBufferSize], FILENAME_BUFFER_SIZE |
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| 616 | les ax, [bp+DIALOG.fpDialogIO] |
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| 617 | add ax, BYTE FILE_DIALOG_IO.szFile |
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| 618 | mov [si+STRING_DIALOG_IO.fpReturnBuffer], ax |
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| 619 | mov [si+STRING_DIALOG_IO.fpReturnBuffer+2], es |
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| 620 | ret |
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| 621 | |
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| 622 | |
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| 623 | ;-------------------------------------------------------------------- |
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| 624 | ; HandleFunctionKeyForSelectingDirectoryInsteadOfFile |
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| 625 | ; Parameters: |
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| 626 | ; AL: File dialog flags |
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| 627 | ; SS:BP: Ptr to DIALOG |
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| 628 | ; Returns: |
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| 629 | ; Closes file dialog |
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| 630 | ; Corrupts registers: |
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| 631 | ; All, except BP |
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| 632 | ;-------------------------------------------------------------------- |
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| 633 | ALIGN JUMP_ALIGN |
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| 634 | HandleFunctionKeyForSelectingDirectoryInsteadOfFile: |
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| 635 | test al, FLG_FILEDIALOG_DIRECTORY |
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| 636 | jz SHORT ReturnWithoutHandlingKeystroke |
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| 637 | ; Fall to CloseFileDialogAfterSuccessfullSelection |
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| 638 | |
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| 639 | ;-------------------------------------------------------------------- |
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| 640 | ; CloseFileDialogAfterSuccessfullSelection |
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| 641 | ; Parameters: |
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| 642 | ; SS:BP: Ptr to DIALOG |
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| 643 | ; Returns: |
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| 644 | ; Nothing (exits dialog) |
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| 645 | ; Corrupts registers: |
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| 646 | ; All, except BP |
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| 647 | ;-------------------------------------------------------------------- |
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| 648 | ALIGN JUMP_ALIGN |
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| 649 | CloseFileDialogAfterSuccessfullSelection: |
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| 650 | lds di, [bp+DIALOG.fpDialogIO] |
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| 651 | mov BYTE [di+FILE_DIALOG_IO.bUserCancellation], FALSE |
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| 652 | jmp MenuInit_CloseMenuWindow |
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| 653 | |
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| 654 | |
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| 655 | ;-------------------------------------------------------------------- |
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| 656 | ; HandleFunctionKeyForDriveChange |
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| 657 | ; Parameters: |
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| 658 | ; AL: File dialog flags |
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| 659 | ; SS:BP: Ptr to DIALOG |
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| 660 | ; Returns: |
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| 661 | ; Nothing |
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| 662 | ; Corrupts registers: |
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| 663 | ; All, except BP |
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| 664 | ;-------------------------------------------------------------------- |
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| 665 | ALIGN JUMP_ALIGN |
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| 666 | HandleFunctionKeyForDriveChange: |
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| 667 | test al, FLG_FILEDIALOG_DRIVES |
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| 668 | jz SHORT ReturnWithoutHandlingKeystroke |
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| 669 | |
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| 670 | call .ShowDriveSelectionDialogAndGetDriveNumberToDL |
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| 671 | jnc SHORT RefreshFilesToDisplay |
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| 672 | call Drive_SetDefaultFromDL |
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| 673 | jmp SHORT RefreshFilesToDisplay |
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| 674 | |
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| 675 | ;-------------------------------------------------------------------- |
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| 676 | ; .ShowDriveSelectionDialogAndGetDriveNumberToDL |
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| 677 | ; Parameters: |
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| 678 | ; SS:BP: Ptr to DIALOG |
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| 679 | ; Returns: |
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| 680 | ; DL: Drive selected by user |
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| 681 | ; CF: Set if new drive selected |
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| 682 | ; Cleared if selection cancelled by user |
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| 683 | ; Corrupts registers: |
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| 684 | ; All, except BP |
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| 685 | ;-------------------------------------------------------------------- |
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| 686 | ALIGN JUMP_ALIGN |
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| 687 | .ShowDriveSelectionDialogAndGetDriveNumberToDL: |
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| 688 | mov cx, DIALOG_INPUT_size |
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| 689 | call Memory_ReserveCXbytesFromStackToDSSI |
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| 690 | call .InitializeDialogInputInDSSIforDriveSelection |
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| 691 | call DialogSelection_GetSelectionToAXwithInputInDSSI |
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| 692 | add sp, BYTE DIALOG_INPUT_size |
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| 693 | cmp ax, BYTE NO_ITEM_SELECTED ; Clear CF if equal |
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| 694 | jne SHORT .ConvertDriveNumberToDLfromItemIndexInAX |
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| 695 | ret |
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| 696 | |
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| 697 | ALIGN JUMP_ALIGN |
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| 698 | .InitializeDialogInputInDSSIforDriveSelection: |
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| 699 | call InitializeNullStringsToDialogInputInDSSI |
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| 700 | call LoadItemStringBufferToESDI |
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| 701 | mov WORD [si+DIALOG_INPUT.fszTitle], g_szSelectNewDrive |
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| 702 | mov [si+DIALOG_INPUT.fszItems], di |
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| 703 | mov [si+DIALOG_INPUT.fszItems+2], es |
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| 704 | call Drive_GetFlagsForAvailableDrivesToDXAX |
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| 705 | ; Fall to .GenerateDriveSelectionStringToESDIfromDriveFlagsInDXAX |
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| 706 | |
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| 707 | ;-------------------------------------------------------------------- |
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| 708 | ; .GenerateDriveSelectionStringToESDIfromDriveFlagsInDXAX |
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| 709 | ; Parameters: |
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| 710 | ; DX:AX: Drive letter flags |
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| 711 | ; ES:DI: Ptr to item string buffer |
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| 712 | ; SS:BP: Ptr to DIALOG |
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| 713 | ; Returns: |
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| 714 | ; Nothing |
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| 715 | ; Corrupts registers: |
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| 716 | ; AX, BX, CX, DX, DI, ES |
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| 717 | ;-------------------------------------------------------------------- |
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| 718 | ;ALIGN JUMP_ALIGN |
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| 719 | .GenerateDriveSelectionStringToESDIfromDriveFlagsInDXAX: |
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| 720 | cld |
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| 721 | xchg cx, ax |
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| 722 | mov ax, 3A41h ; A: |
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| 723 | ALIGN JUMP_ALIGN |
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| 724 | .BitShiftLoop: |
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| 725 | shr dx, 1 |
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| 726 | rcr cx, 1 |
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| 727 | jnc SHORT .CheckIfMoreDrivesLeft |
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| 728 | stosw |
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| 729 | mov BYTE [es:di], LF |
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| 730 | inc di |
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| 731 | ALIGN JUMP_ALIGN |
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| 732 | .CheckIfMoreDrivesLeft: |
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| 733 | inc ax ; Next drive letter |
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| 734 | mov bx, dx |
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| 735 | or bx, cx |
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| 736 | jnz SHORT .BitShiftLoop |
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[46] | 737 | jmp TerminateESDIwithNull |
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[41] | 738 | |
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| 739 | ;-------------------------------------------------------------------- |
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| 740 | ; .ConvertDriveNumberToDLfromItemIndexInAX |
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| 741 | ; Parameters: |
---|
| 742 | ; AX: Selected drive item |
---|
| 743 | ; Returns: |
---|
| 744 | ; DL: Drive number |
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| 745 | ; CF: Set since drive selected |
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| 746 | ; Corrupts registers: |
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| 747 | ; AX, CX, DH |
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| 748 | ;-------------------------------------------------------------------- |
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| 749 | ALIGN JUMP_ALIGN |
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| 750 | .ConvertDriveNumberToDLfromItemIndexInAX: |
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| 751 | mov ah, -1 |
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| 752 | xchg cx, ax |
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| 753 | call Drive_GetFlagsForAvailableDrivesToDXAX |
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| 754 | ALIGN JUMP_ALIGN |
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| 755 | .BitScanLoop: |
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| 756 | shr dx, 1 |
---|
| 757 | rcr ax, 1 |
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| 758 | inc ch ; Increment drive number |
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| 759 | sbb cl, 0 ; Decrement selection index |
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| 760 | jnc SHORT .BitScanLoop |
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| 761 | mov dl, ch |
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| 762 | stc ; Drive selected by user |
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| 763 | ret |
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| 764 | |
---|
| 765 | |
---|
| 766 | ;-------------------------------------------------------------------- |
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| 767 | ; InitializeNullStringsToDialogInputInDSSI |
---|
| 768 | ; Parameters: |
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| 769 | ; DS:SI: Ptr to DIALOG_INPUT |
---|
| 770 | ; SS:BP: Ptr to DIALOG |
---|
| 771 | ; Returns: |
---|
| 772 | ; Nothing |
---|
| 773 | ; Corrupts registers: |
---|
| 774 | ; AX |
---|
| 775 | ;-------------------------------------------------------------------- |
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| 776 | ALIGN JUMP_ALIGN |
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| 777 | InitializeNullStringsToDialogInputInDSSI: |
---|
| 778 | mov ax, g_szNull |
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| 779 | mov [si+DIALOG_INPUT.fszTitle], ax |
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| 780 | mov [si+DIALOG_INPUT.fszTitle+2], cs |
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| 781 | mov [si+DIALOG_INPUT.fszItems], ax |
---|
| 782 | mov [si+DIALOG_INPUT.fszItems+2], cs |
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| 783 | mov [si+DIALOG_INPUT.fszInfo], ax |
---|
| 784 | mov [si+DIALOG_INPUT.fszInfo+2], cs |
---|
| 785 | ret |
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