| 1 | ; Project name : XTIDE Universal BIOS Configurator v2
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| 2 | ; Description : "Master/Slave Drive" menu structs and functions.
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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, 2011-2012 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 initialized data
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| 21 | SECTION .data
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| 22 |
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| 23 | ALIGN WORD_ALIGN
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| 24 | g_MenupageForMasterSlaveMenu:
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| 25 | istruc MENUPAGE
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| 26 | at MENUPAGE.fnEnter, dw MasterSlaveMenu_EnterMenuOrModifyItemVisibility
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| 27 | at MENUPAGE.fnBack, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
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| 28 | at MENUPAGE.wMenuitems, dw 9
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| 29 | iend
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| 30 |
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| 31 | g_MenuitemMasterSlaveBackToIdeControllerMenu:
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| 32 | istruc MENUITEM
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| 33 | at MENUITEM.fnActivate, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
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| 34 | at MENUITEM.szName, dw g_szItemDrvBackToIde
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| 35 | at MENUITEM.szQuickInfo, dw g_szItemDrvBackToIde
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| 36 | at MENUITEM.szHelp, dw g_szItemDrvBackToIde
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| 37 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
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| 38 | at MENUITEM.bType, db TYPE_MENUITEM_PAGEBACK
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| 39 | iend
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| 40 |
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| 41 | g_MenuitemMasterSlaveBlockModeTransfers:
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| 42 | istruc MENUITEM
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| 43 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
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| 44 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
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| 45 | at MENUITEM.szName, dw g_szItemDrvBlockMode
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| 46 | at MENUITEM.szQuickInfo, dw g_szNfoDrvBlockMode
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| 47 | at MENUITEM.szHelp, dw g_szHelpDrvBlockMode
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| 48 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_FLAGVALUE
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| 49 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
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| 50 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 51 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvBlockMode
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| 52 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
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| 53 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
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| 54 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_BLOCKMODE
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| 55 | iend
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| 56 |
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| 57 | g_MenuitemMasterSlaveWriteCache:
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| 58 | istruc MENUITEM
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| 59 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
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| 60 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
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| 61 | at MENUITEM.szName, dw g_szItemDrvWriteCache
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| 62 | at MENUITEM.szQuickInfo, dw g_szNfoDrvWriteCache
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| 63 | at MENUITEM.szHelp, dw g_szHelpDrvWriteCache
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| 64 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MASKVALUE
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| 65 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
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| 66 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 67 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvWriteCache
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| 68 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiseWrCache
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| 69 | at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForWriteCache
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| 70 | at MENUITEM.itemValue + ITEM_VALUE.rgszChoiceToStringLookup, dw g_rgszChoiceToStringLookupForWriteCache
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| 71 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw MASK_DRVPARAMS_WRITECACHE
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| 72 | iend
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| 73 |
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| 74 | g_MenuitemMasterSlaveUserCHS:
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| 75 | istruc MENUITEM
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| 76 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
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| 77 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
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| 78 | at MENUITEM.szName, dw g_szItemDrvUserCHS
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| 79 | at MENUITEM.szQuickInfo, dw g_szNfoDrvUserCHS
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| 80 | at MENUITEM.szHelp, dw g_szHelpDrvUserCHS
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| 81 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MODIFY_MENU | FLG_MENUITEM_FLAGVALUE
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| 82 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
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| 83 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 84 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserCHS
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| 85 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
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| 86 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
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| 87 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERCHS
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| 88 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw MasterSlaveMenu_WriteCHSFlag
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| 89 | iend
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| 90 |
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| 91 | g_MenuitemMasterSlaveCylinders:
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| 92 | istruc MENUITEM
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| 93 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
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| 94 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
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| 95 | at MENUITEM.szName, dw g_szItemDrvCyls
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| 96 | at MENUITEM.szQuickInfo, dw g_szNfoDrvCyls
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| 97 | at MENUITEM.szHelp, dw g_szNfoDrvCyls
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| 98 | at MENUITEM.bFlags, db NULL
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| 99 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
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| 100 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 101 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvCyls
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| 102 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
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| 103 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 16383
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| 104 | %define MASTERSLAVE_CYLINDERS_DEFAULT 65
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| 105 | iend
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| 106 |
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| 107 | g_MenuitemMasterSlaveHeads:
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| 108 | istruc MENUITEM
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| 109 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
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| 110 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
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| 111 | at MENUITEM.szName, dw g_szItemDrvHeads
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| 112 | at MENUITEM.szQuickInfo, dw g_szNfoDrvHeads
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| 113 | at MENUITEM.szHelp, dw g_szNfoDrvHeads
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| 114 | at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
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| 115 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
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| 116 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 117 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvHeads
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| 118 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
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| 119 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 16
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| 120 | %define MASTERSLAVE_HEADS_DEFAULT 16
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| 121 | iend
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| 122 |
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| 123 | g_MenuitemMasterSlaveSectors:
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| 124 | istruc MENUITEM
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| 125 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
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| 126 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
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| 127 | at MENUITEM.szName, dw g_szItemDrvSect
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| 128 | at MENUITEM.szQuickInfo, dw g_szNfoDrvSect
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| 129 | at MENUITEM.szHelp, dw g_szNfoDrvSect
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| 130 | at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
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| 131 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
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| 132 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 133 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvSect
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| 134 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
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| 135 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 63
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| 136 | %define MASTERSLAVE_SECTORS_DEFAULT 63
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| 137 | iend
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| 138 |
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| 139 | g_MenuitemMasterSlaveUserLBA:
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| 140 | istruc MENUITEM
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| 141 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
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| 142 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
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| 143 | at MENUITEM.szName, dw g_szItemDrvUserLBA
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| 144 | at MENUITEM.szQuickInfo, dw g_szNfoDrvUserLBA
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| 145 | at MENUITEM.szHelp, dw g_szHelpDrvUserLBA
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| 146 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MODIFY_MENU | FLG_MENUITEM_FLAGVALUE
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| 147 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
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| 148 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 149 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserLBA
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| 150 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
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| 151 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
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| 152 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERLBA
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| 153 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw MasterSlaveMenu_WriteLBAFlag
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| 154 | iend
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| 155 |
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| 156 | g_MenuitemMasterSlaveUserLbaValue:
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| 157 | istruc MENUITEM
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| 158 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
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| 159 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
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| 160 | at MENUITEM.szName, dw g_szItemDrvLbaSectors
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| 161 | at MENUITEM.szQuickInfo, dw g_szNfoDrvLbaSectors
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| 162 | at MENUITEM.szHelp, dw g_szNfoDrvLbaSectors
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| 163 | at MENUITEM.bFlags, db NULL
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| 164 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
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| 165 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
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| 166 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvLbaSectors
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| 167 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1 ; 512 MiB
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| 168 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 10000000h / (1024 * 1024) ; Limit to 28-bit LBA
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| 169 | at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw ValueReaderForUserLbaValue
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| 170 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw ValueWriterForUserLbaValue
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| 171 | %define MASTERSLAVE_USERLBA_DEFAULT 1
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| 172 | iend
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| 173 |
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| 174 |
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| 175 | g_rgwChoiceToValueLookupForWriteCache:
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| 176 | dw DEFAULT_WRITE_CACHE
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| 177 | dw DISABLE_WRITE_CACHE
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| 178 | dw ENABLE_WRITE_CACHE
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| 179 |
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| 180 | g_rgszChoiceToStringLookupForWriteCache:
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| 181 | dw g_szValueBootDispModeDefault
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| 182 | dw g_szValueDrvWrCaDis
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| 183 | dw g_szValueDrvWrCaEn
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| 184 |
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| 185 |
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| 186 | ; Section containing code
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| 187 | SECTION .text
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| 188 |
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| 189 | ;--------------------------------------------------------------------
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| 190 | ; MasterSlaveMenu_InitializeToDrvparamsOffsetInBX
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| 191 | ; Parameters:
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| 192 | ; SS:BP: Menu handle
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| 193 | ; Returns:
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| 194 | ; Nothing
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| 195 | ; Corrupts registers:
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| 196 | ; AX
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| 197 | ;--------------------------------------------------------------------
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| 198 | ALIGN JUMP_ALIGN
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| 199 | MasterSlaveMenu_InitializeToDrvparamsOffsetInBX:
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| 200 | lea ax, [bx+DRVPARAMS.wFlags]
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| 201 | mov [cs:g_MenuitemMasterSlaveBlockModeTransfers+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 202 | mov [cs:g_MenuitemMasterSlaveWriteCache+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 203 | mov [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 204 | mov [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 205 |
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| 206 | lea ax, [bx+DRVPARAMS.wCylinders]
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| 207 | mov [cs:g_MenuitemMasterSlaveCylinders+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 208 |
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| 209 | lea ax, [bx+DRVPARAMS.bHeads]
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| 210 | mov [cs:g_MenuitemMasterSlaveHeads+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 211 |
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| 212 | lea ax, [bx+DRVPARAMS.bSect]
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| 213 | mov [cs:g_MenuitemMasterSlaveSectors+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 214 |
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| 215 | lea ax, [bx+DRVPARAMS.dwMaximumLBA]
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| 216 | mov [cs:g_MenuitemMasterSlaveUserLbaValue+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
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| 217 | ret
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| 218 |
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| 219 |
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| 220 | ;--------------------------------------------------------------------
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| 221 | ; MasterSlaveMenu_EnterMenuOrModifyItemVisibility
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| 222 | ; Parameters:
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| 223 | ; SS:BP: Menu handle
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| 224 | ; Returns:
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| 225 | ; Nothing
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| 226 | ; Corrupts registers:
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| 227 | ; All, except BP
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| 228 | ;--------------------------------------------------------------------
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| 229 | ALIGN JUMP_ALIGN
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| 230 | MasterSlaveMenu_EnterMenuOrModifyItemVisibility:
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| 231 | push cs
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| 232 | pop ds
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| 233 | call .EnableOrDisableUserCHSandLBA
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| 234 | call .EnableOrDisableCHandS
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| 235 | call .EnableOrDisableUserLbaValue
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| 236 | mov si, g_MenupageForMasterSlaveMenu
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| 237 | jmp Menupage_ChangeToNewMenupageInDSSI
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| 238 |
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| 239 |
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| 240 | ;--------------------------------------------------------------------
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| 241 | ; .EnableOrDisableUserCHSandLBA
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| 242 | ; Parameters:
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| 243 | ; SS:BP: Menu handle
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| 244 | ; Returns:
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| 245 | ; Nothing
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| 246 | ; Corrupts registers:
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| 247 | ; AX, BX
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| 248 | ;--------------------------------------------------------------------
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| 249 | ALIGN JUMP_ALIGN
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| 250 | .EnableOrDisableUserCHSandLBA:
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| 251 | mov bx, [g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
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| 252 | call Buffers_GetRomvarsValueToAXfromOffsetInBX
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| 253 | test ax, FLG_DRVPARAMS_USERLBA
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| 254 | jnz SHORT .DisableCHSandEnableLBA
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| 255 | test ax, FLG_DRVPARAMS_USERCHS
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| 256 | jnz SHORT .EnableCHSandDisableLBA
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| 257 |
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| 258 | ; Enable both
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| 259 | mov bx, g_MenuitemMasterSlaveUserCHS
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| 260 | call .EnableMenuitemFromCSBX
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| 261 | mov bx, g_MenuitemMasterSlaveUserLBA
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| 262 | jmp .EnableMenuitemFromCSBX
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| 263 |
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| 264 | ALIGN JUMP_ALIGN
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| 265 | .EnableCHSandDisableLBA:
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| 266 | mov bx, g_MenuitemMasterSlaveUserCHS
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| 267 | call .EnableMenuitemFromCSBX
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| 268 | mov bx, g_MenuitemMasterSlaveUserLBA
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| 269 | jmp .DisableMenuitemFromCSBX
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| 270 |
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| 271 | ALIGN JUMP_ALIGN
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| 272 | .DisableCHSandEnableLBA:
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| 273 | mov bx, g_MenuitemMasterSlaveUserLBA
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| 274 | call .EnableMenuitemFromCSBX
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| 275 | mov bx, g_MenuitemMasterSlaveUserCHS
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| 276 | jmp .DisableMenuitemFromCSBX
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| 277 |
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| 278 |
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| 279 | ;--------------------------------------------------------------------
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| 280 | ; .EnableOrDisableCHandS
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| 281 | ; Parameters:
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| 282 | ; SS:BP: Menu handle
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| 283 | ; Returns:
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| 284 | ; Nothing
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| 285 | ; Corrupts registers:
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| 286 | ; AX, BX
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| 287 | ;--------------------------------------------------------------------
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| 288 | ALIGN JUMP_ALIGN
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| 289 | .EnableOrDisableCHandS:
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| 290 | mov bx, [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
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| 291 | call Buffers_GetRomvarsValueToAXfromOffsetInBX
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| 292 | test ax, FLG_DRVPARAMS_USERCHS
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| 293 | jz SHORT .DisableCHandS
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| 294 | test ax, FLG_DRVPARAMS_USERLBA
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| 295 | jnz SHORT .DisableCHandS
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| 296 |
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| 297 | mov bx, g_MenuitemMasterSlaveCylinders
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| 298 | call .EnableMenuitemFromCSBX
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| 299 | mov bx, g_MenuitemMasterSlaveHeads
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| 300 | call .EnableMenuitemFromCSBX
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| 301 | mov bx, g_MenuitemMasterSlaveSectors
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| 302 | jmp SHORT .EnableMenuitemFromCSBX
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| 303 |
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| 304 | ALIGN JUMP_ALIGN
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| 305 | .DisableCHandS:
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| 306 | mov bx, g_MenuitemMasterSlaveCylinders
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| 307 | call .DisableMenuitemFromCSBX
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| 308 | mov bx, g_MenuitemMasterSlaveHeads
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| 309 | call .DisableMenuitemFromCSBX
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| 310 | mov bx, g_MenuitemMasterSlaveSectors
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| 311 | jmp SHORT .DisableMenuitemFromCSBX
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| 312 |
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| 313 |
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| 314 | ;--------------------------------------------------------------------
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| 315 | ; .EnableOrDisableUserLbaValue
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| 316 | ; Parameters:
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| 317 | ; SS:BP: Menu handle
|
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| 318 | ; Returns:
|
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| 319 | ; Nothing
|
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| 320 | ; Corrupts registers:
|
|---|
| 321 | ; AX, BX
|
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| 322 | ;--------------------------------------------------------------------
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| 323 | ALIGN JUMP_ALIGN
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| 324 | .EnableOrDisableUserLbaValue:
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| 325 | mov bx, [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
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| 326 | call Buffers_GetRomvarsValueToAXfromOffsetInBX
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| 327 | mov bx, g_MenuitemMasterSlaveUserLbaValue
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| 328 | test ax, FLG_DRVPARAMS_USERCHS
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| 329 | jnz SHORT .DisableMenuitemFromCSBX
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| 330 | test ax, FLG_DRVPARAMS_USERLBA
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| 331 | jz SHORT .DisableMenuitemFromCSBX
|
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| 332 | ; Fall to .EnableMenuitemFromCSBX
|
|---|
| 333 |
|
|---|
| 334 |
|
|---|
| 335 | ;--------------------------------------------------------------------
|
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| 336 | ; .EnableMenuitemFromCSBX
|
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| 337 | ; .DisableMenuitemFromCSBX
|
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| 338 | ; Parameters:
|
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| 339 | ; CS:BX: Ptr to MENUITEM
|
|---|
| 340 | ; Returns:
|
|---|
| 341 | ; Nothing
|
|---|
| 342 | ; Corrupts registers:
|
|---|
| 343 | ; Nothing
|
|---|
| 344 | ;--------------------------------------------------------------------
|
|---|
| 345 | ALIGN JUMP_ALIGN
|
|---|
| 346 | .EnableMenuitemFromCSBX:
|
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| 347 | or BYTE [cs:bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE
|
|---|
| 348 | ret
|
|---|
| 349 |
|
|---|
| 350 | ALIGN JUMP_ALIGN
|
|---|
| 351 | .DisableMenuitemFromCSBX:
|
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| 352 | and BYTE [cs:bx+MENUITEM.bFlags], ~FLG_MENUITEM_VISIBLE
|
|---|
| 353 | ret
|
|---|
| 354 |
|
|---|
| 355 |
|
|---|
| 356 | ;--------------------------------------------------------------------
|
|---|
| 357 | ; MENUITEM value reader functions
|
|---|
| 358 | ; Parameters:
|
|---|
| 359 | ; AX: Value from MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset
|
|---|
| 360 | ; DS:SI: Ptr to MENUITEM
|
|---|
| 361 | ; ES:DI: Ptr to value variable
|
|---|
| 362 | ; Returns:
|
|---|
| 363 | ; AX: Value with possible modifications
|
|---|
| 364 | ; Corrupts registers:
|
|---|
| 365 | ; Nothing
|
|---|
| 366 | ;--------------------------------------------------------------------
|
|---|
| 367 | ALIGN JUMP_ALIGN
|
|---|
| 368 | ValueReaderForUserLbaValue:
|
|---|
| 369 | push dx
|
|---|
| 370 |
|
|---|
| 371 | mov ax, [es:di]
|
|---|
| 372 | mov dx, [es:di+2] ; DX:AX now holds user defined LBA28 limit
|
|---|
| 373 | add ax, BYTE 1 ; Increment by one
|
|---|
| 374 | adc dx, BYTE 0
|
|---|
| 375 |
|
|---|
| 376 | xchg ax, dx ; SHR 16
|
|---|
| 377 | eSHIFT_IM ax, 4, shr ; SHR 4 => AX = DX:AX / (1024*1024)
|
|---|
| 378 |
|
|---|
| 379 | pop dx
|
|---|
| 380 | ret
|
|---|
| 381 |
|
|---|
| 382 |
|
|---|
| 383 | ;--------------------------------------------------------------------
|
|---|
| 384 | ; MENUITEM value writer functions
|
|---|
| 385 | ; Parameters:
|
|---|
| 386 | ; AX: Value to be written to MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset
|
|---|
| 387 | ; DS:SI: Ptr to MENUITEM
|
|---|
| 388 | ; ES:DI: Ptr to value variable
|
|---|
| 389 | ; Returns:
|
|---|
| 390 | ; AX: Value to be stored
|
|---|
| 391 | ; Corrupts registers:
|
|---|
| 392 | ; Nothing
|
|---|
| 393 | ;--------------------------------------------------------------------
|
|---|
| 394 | ALIGN JUMP_ALIGN
|
|---|
| 395 | ValueWriterForUserLbaValue:
|
|---|
| 396 | push dx
|
|---|
| 397 |
|
|---|
| 398 | xor dx, dx
|
|---|
| 399 | eSHIFT_IM ax, 4, shl
|
|---|
| 400 | xchg dx, ax ; DX:AX now holds AX * 1024 * 1024
|
|---|
| 401 |
|
|---|
| 402 | sub ax, BYTE 1 ; Decrement DX:AX by one
|
|---|
| 403 | sbb dx, BYTE 0 ; (necessary since maximum LBA28 sector count is 0FFF FFFFh)
|
|---|
| 404 |
|
|---|
| 405 | mov [es:di+2], dx ; Store DX by ourselves
|
|---|
| 406 | pop dx
|
|---|
| 407 | ret ; AX will be stored by our menu system
|
|---|
| 408 |
|
|---|
| 409 | ;
|
|---|
| 410 | ; No change to CHS flag, but we use this opportunity to change defaults stored in the CHS values if we are
|
|---|
| 411 | ; changing in/out of user CHS settings (since we use these bytes in different ways with the LBA setting).
|
|---|
| 412 | ;
|
|---|
| 413 | ALIGN JUMP_ALIGN
|
|---|
| 414 | MasterSlaveMenu_WriteCHSFlag:
|
|---|
| 415 | test word [es:di], FLG_DRVPARAMS_USERCHS
|
|---|
| 416 | jnz .alreadySet
|
|---|
| 417 |
|
|---|
| 418 | push ax
|
|---|
| 419 | push di
|
|---|
| 420 | push si
|
|---|
| 421 |
|
|---|
| 422 | mov ax, MASTERSLAVE_CYLINDERS_DEFAULT
|
|---|
| 423 | mov si, g_MenuitemMasterSlaveCylinders
|
|---|
| 424 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI
|
|---|
| 425 |
|
|---|
| 426 | mov ax, MASTERSLAVE_HEADS_DEFAULT
|
|---|
| 427 | mov si, g_MenuitemMasterSlaveHeads
|
|---|
| 428 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI
|
|---|
| 429 |
|
|---|
| 430 | mov ax, MASTERSLAVE_SECTORS_DEFAULT
|
|---|
| 431 | mov si, g_MenuitemMasterSlaveSectors
|
|---|
| 432 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI
|
|---|
| 433 |
|
|---|
| 434 | pop si
|
|---|
| 435 | pop di
|
|---|
| 436 | pop ax
|
|---|
| 437 |
|
|---|
| 438 | .alreadySet:
|
|---|
| 439 | ret
|
|---|
| 440 |
|
|---|
| 441 | ;
|
|---|
| 442 | ; No change to LBA flag, but we use this opportunity to change defaults stored in the LBA value if we are
|
|---|
| 443 | ; changing in/out of user LBA settings (since we use these bytes in different ways with the CHS setting).
|
|---|
| 444 | ;
|
|---|
| 445 | ALIGN JUMP_ALIGN
|
|---|
| 446 | MasterSlaveMenu_WriteLBAFlag:
|
|---|
| 447 | test word [es:di], FLG_DRVPARAMS_USERLBA
|
|---|
| 448 | jnz .alreadySet
|
|---|
| 449 |
|
|---|
| 450 | push ax
|
|---|
| 451 | push di
|
|---|
| 452 | push si
|
|---|
| 453 |
|
|---|
| 454 | mov ax, MASTERSLAVE_USERLBA_DEFAULT
|
|---|
| 455 | mov si, g_MenuitemMasterSlaveUserLbaValue
|
|---|
| 456 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI
|
|---|
| 457 |
|
|---|
| 458 | pop si
|
|---|
| 459 | pop di
|
|---|
| 460 | pop ax
|
|---|
| 461 |
|
|---|
| 462 | .alreadySet:
|
|---|
| 463 | ret
|
|---|
