[57] | 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 | ; Section containing initialized data |
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| 5 | SECTION .data |
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| 6 | |
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| 7 | ALIGN WORD_ALIGN |
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| 8 | g_MenupageForMasterSlaveMenu: |
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| 9 | istruc MENUPAGE |
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| 10 | at MENUPAGE.fnEnter, dw MasterSlaveMenu_EnterMenuOrModifyItemVisibility |
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[59] | 11 | at MENUPAGE.fnBack, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility |
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[286] | 12 | at MENUPAGE.wMenuitems, dw 9 |
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[57] | 13 | iend |
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| 14 | |
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| 15 | g_MenuitemMasterSlaveBackToIdeControllerMenu: |
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| 16 | istruc MENUITEM |
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| 17 | at MENUITEM.fnActivate, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility |
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| 18 | at MENUITEM.szName, dw g_szItemDrvBackToIde |
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| 19 | at MENUITEM.szQuickInfo, dw g_szItemDrvBackToIde |
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| 20 | at MENUITEM.szHelp, dw g_szItemDrvBackToIde |
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| 21 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE |
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| 22 | at MENUITEM.bType, db TYPE_MENUITEM_PAGEBACK |
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| 23 | iend |
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| 24 | |
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| 25 | g_MenuitemMasterSlaveBlockModeTransfers: |
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| 26 | istruc MENUITEM |
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[108] | 27 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI |
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[59] | 28 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI |
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[57] | 29 | at MENUITEM.szName, dw g_szItemDrvBlockMode |
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| 30 | at MENUITEM.szQuickInfo, dw g_szNfoDrvBlockMode |
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| 31 | at MENUITEM.szHelp, dw g_szHelpDrvBlockMode |
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| 32 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_FLAGVALUE |
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[108] | 33 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE |
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[57] | 34 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL |
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| 35 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvBlockMode |
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[108] | 36 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag |
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[57] | 37 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans |
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| 38 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_BLOCKMODE |
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| 39 | iend |
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| 40 | |
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[286] | 41 | g_MenuitemMasterSlaveWriteCache: |
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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_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI |
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| 45 | at MENUITEM.szName, dw g_szItemDrvWriteCache |
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| 46 | at MENUITEM.szQuickInfo, dw g_szNfoDrvWriteCache |
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| 47 | at MENUITEM.szHelp, dw g_szHelpDrvWriteCache |
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| 48 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MASKVALUE |
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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_szDlgDrvWriteCache |
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| 52 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiseWrCache |
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| 53 | at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForWriteCache |
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| 54 | at MENUITEM.itemValue + ITEM_VALUE.rgszChoiceToStringLookup, dw g_rgszChoiceToStringLookupForWriteCache |
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| 55 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw MASK_DRVPARAMS_WRITECACHE |
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| 56 | iend |
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| 57 | |
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[57] | 58 | g_MenuitemMasterSlaveUserCHS: |
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| 59 | istruc MENUITEM |
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[108] | 60 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI |
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[59] | 61 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI |
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[57] | 62 | at MENUITEM.szName, dw g_szItemDrvUserCHS |
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| 63 | at MENUITEM.szQuickInfo, dw g_szNfoDrvUserCHS |
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| 64 | at MENUITEM.szHelp, dw g_szHelpDrvUserCHS |
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| 65 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MODIFY_MENU | FLG_MENUITEM_FLAGVALUE |
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[108] | 66 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE |
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[57] | 67 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL |
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| 68 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvUserCHS |
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[108] | 69 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag |
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[57] | 70 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans |
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| 71 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERCHS |
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[369] | 72 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw MasterSlaveMenu_WriteCHSFlag |
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[57] | 73 | iend |
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| 74 | |
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| 75 | g_MenuitemMasterSlaveCylinders: |
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| 76 | istruc MENUITEM |
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| 77 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI |
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| 78 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI |
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| 79 | at MENUITEM.szName, dw g_szItemDrvCyls |
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| 80 | at MENUITEM.szQuickInfo, dw g_szNfoDrvCyls |
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| 81 | at MENUITEM.szHelp, dw g_szNfoDrvCyls |
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| 82 | at MENUITEM.bFlags, db NULL |
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| 83 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED |
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| 84 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL |
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| 85 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvCyls |
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| 86 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1 |
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| 87 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 16383 |
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[369] | 88 | %define MASTERSLAVE_CYLINDERS_DEFAULT 65 |
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[57] | 89 | iend |
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| 90 | |
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| 91 | g_MenuitemMasterSlaveHeads: |
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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_szItemDrvHeads |
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| 96 | at MENUITEM.szQuickInfo, dw g_szNfoDrvHeads |
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| 97 | at MENUITEM.szHelp, dw g_szNfoDrvHeads |
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| 98 | at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE |
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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_szDlgDrvHeads |
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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 16 |
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[369] | 104 | %define MASTERSLAVE_HEADS_DEFAULT 16 |
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[57] | 105 | iend |
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| 106 | |
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| 107 | g_MenuitemMasterSlaveSectors: |
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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_szItemDrvSect |
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| 112 | at MENUITEM.szQuickInfo, dw g_szNfoDrvSect |
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| 113 | at MENUITEM.szHelp, dw g_szNfoDrvSect |
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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_szDlgDrvSect |
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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 63 |
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[369] | 120 | %define MASTERSLAVE_SECTORS_DEFAULT 63 |
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[57] | 121 | iend |
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| 122 | |
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[286] | 123 | g_MenuitemMasterSlaveUserLBA: |
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| 124 | istruc MENUITEM |
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| 125 | at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI |
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| 126 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI |
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| 127 | at MENUITEM.szName, dw g_szItemDrvUserLBA |
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| 128 | at MENUITEM.szQuickInfo, dw g_szNfoDrvUserLBA |
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| 129 | at MENUITEM.szHelp, dw g_szHelpDrvUserLBA |
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| 130 | at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE | FLG_MENUITEM_MODIFY_MENU | FLG_MENUITEM_FLAGVALUE |
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| 131 | at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE |
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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_szDlgDrvUserLBA |
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| 134 | at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag |
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| 135 | at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans |
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| 136 | at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_DRVPARAMS_USERLBA |
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[369] | 137 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw MasterSlaveMenu_WriteLBAFlag |
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[286] | 138 | iend |
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[57] | 139 | |
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[286] | 140 | g_MenuitemMasterSlaveUserLbaValue: |
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| 141 | istruc MENUITEM |
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| 142 | at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI |
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| 143 | at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI |
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| 144 | at MENUITEM.szName, dw g_szItemDrvLbaSectors |
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| 145 | at MENUITEM.szQuickInfo, dw g_szNfoDrvLbaSectors |
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| 146 | at MENUITEM.szHelp, dw g_szNfoDrvLbaSectors |
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| 147 | at MENUITEM.bFlags, db NULL |
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| 148 | at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED |
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| 149 | at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL |
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| 150 | at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDrvLbaSectors |
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[360] | 151 | at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1 ; 512 MiB |
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[286] | 152 | at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 10000000h / (1024 * 1024) ; Limit to 28-bit LBA |
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| 153 | at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw ValueReaderForUserLbaValue |
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| 154 | at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw ValueWriterForUserLbaValue |
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[369] | 155 | %define MASTERSLAVE_USERLBA_DEFAULT 1 |
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[286] | 156 | iend |
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| 157 | |
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| 158 | |
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| 159 | g_rgwChoiceToValueLookupForWriteCache: |
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| 160 | dw DEFAULT_WRITE_CACHE |
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| 161 | dw DISABLE_WRITE_CACHE |
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| 162 | dw ENABLE_WRITE_CACHE |
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| 163 | |
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| 164 | g_rgszChoiceToStringLookupForWriteCache: |
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| 165 | dw g_szValueBootDispModeDefault |
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| 166 | dw g_szValueDrvWrCaDis |
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| 167 | dw g_szValueDrvWrCaEn |
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| 168 | |
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| 169 | |
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[57] | 170 | ; Section containing code |
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| 171 | SECTION .text |
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| 172 | |
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| 173 | ;-------------------------------------------------------------------- |
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| 174 | ; MasterSlaveMenu_InitializeToDrvparamsOffsetInBX |
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| 175 | ; Parameters: |
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| 176 | ; SS:BP: Menu handle |
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| 177 | ; Returns: |
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| 178 | ; Nothing |
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| 179 | ; Corrupts registers: |
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| 180 | ; AX |
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| 181 | ;-------------------------------------------------------------------- |
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| 182 | ALIGN JUMP_ALIGN |
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| 183 | MasterSlaveMenu_InitializeToDrvparamsOffsetInBX: |
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| 184 | lea ax, [bx+DRVPARAMS.wFlags] |
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| 185 | mov [cs:g_MenuitemMasterSlaveBlockModeTransfers+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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[286] | 186 | mov [cs:g_MenuitemMasterSlaveWriteCache+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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[57] | 187 | mov [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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[286] | 188 | mov [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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[57] | 189 | |
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| 190 | lea ax, [bx+DRVPARAMS.wCylinders] |
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| 191 | mov [cs:g_MenuitemMasterSlaveCylinders+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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| 192 | |
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| 193 | lea ax, [bx+DRVPARAMS.bHeads] |
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| 194 | mov [cs:g_MenuitemMasterSlaveHeads+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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| 195 | |
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| 196 | lea ax, [bx+DRVPARAMS.bSect] |
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| 197 | mov [cs:g_MenuitemMasterSlaveSectors+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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[286] | 198 | |
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| 199 | lea ax, [bx+DRVPARAMS.dwMaximumLBA] |
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| 200 | mov [cs:g_MenuitemMasterSlaveUserLbaValue+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax |
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[57] | 201 | ret |
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| 202 | |
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| 203 | |
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| 204 | ;-------------------------------------------------------------------- |
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| 205 | ; MasterSlaveMenu_EnterMenuOrModifyItemVisibility |
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| 206 | ; Parameters: |
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| 207 | ; SS:BP: Menu handle |
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| 208 | ; Returns: |
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| 209 | ; Nothing |
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| 210 | ; Corrupts registers: |
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| 211 | ; All, except BP |
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| 212 | ;-------------------------------------------------------------------- |
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| 213 | ALIGN JUMP_ALIGN |
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| 214 | MasterSlaveMenu_EnterMenuOrModifyItemVisibility: |
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| 215 | push cs |
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| 216 | pop ds |
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[286] | 217 | call .EnableOrDisableUserCHSandLBA |
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[57] | 218 | call .EnableOrDisableCHandS |
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[286] | 219 | call .EnableOrDisableUserLbaValue |
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[57] | 220 | mov si, g_MenupageForMasterSlaveMenu |
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| 221 | jmp Menupage_ChangeToNewMenupageInDSSI |
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| 222 | |
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[286] | 223 | |
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[57] | 224 | ;-------------------------------------------------------------------- |
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[286] | 225 | ; .EnableOrDisableUserCHSandLBA |
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| 226 | ; Parameters: |
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| 227 | ; SS:BP: Menu handle |
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| 228 | ; Returns: |
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| 229 | ; Nothing |
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| 230 | ; Corrupts registers: |
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| 231 | ; AX, BX |
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| 232 | ;-------------------------------------------------------------------- |
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| 233 | ALIGN JUMP_ALIGN |
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| 234 | .EnableOrDisableUserCHSandLBA: |
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| 235 | mov bx, [g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset] |
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| 236 | call Buffers_GetRomvarsValueToAXfromOffsetInBX |
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| 237 | test ax, FLG_DRVPARAMS_USERLBA |
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| 238 | jnz SHORT .DisableCHSandEnableLBA |
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| 239 | test ax, FLG_DRVPARAMS_USERCHS |
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| 240 | jnz SHORT .EnableCHSandDisableLBA |
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| 241 | |
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| 242 | ; Enable both |
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| 243 | mov bx, g_MenuitemMasterSlaveUserCHS |
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| 244 | call .EnableMenuitemFromCSBX |
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| 245 | mov bx, g_MenuitemMasterSlaveUserLBA |
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[293] | 246 | jmp .EnableMenuitemFromCSBX |
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[286] | 247 | |
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| 248 | ALIGN JUMP_ALIGN |
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| 249 | .EnableCHSandDisableLBA: |
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| 250 | mov bx, g_MenuitemMasterSlaveUserCHS |
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| 251 | call .EnableMenuitemFromCSBX |
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| 252 | mov bx, g_MenuitemMasterSlaveUserLBA |
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[293] | 253 | jmp .DisableMenuitemFromCSBX |
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[286] | 254 | |
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| 255 | ALIGN JUMP_ALIGN |
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| 256 | .DisableCHSandEnableLBA: |
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| 257 | mov bx, g_MenuitemMasterSlaveUserLBA |
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| 258 | call .EnableMenuitemFromCSBX |
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| 259 | mov bx, g_MenuitemMasterSlaveUserCHS |
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[293] | 260 | jmp .DisableMenuitemFromCSBX |
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[286] | 261 | |
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| 262 | |
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| 263 | ;-------------------------------------------------------------------- |
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[57] | 264 | ; .EnableOrDisableCHandS |
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| 265 | ; Parameters: |
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| 266 | ; SS:BP: Menu handle |
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| 267 | ; Returns: |
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| 268 | ; Nothing |
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| 269 | ; Corrupts registers: |
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| 270 | ; AX, BX |
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| 271 | ;-------------------------------------------------------------------- |
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| 272 | ALIGN JUMP_ALIGN |
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| 273 | .EnableOrDisableCHandS: |
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| 274 | mov bx, [cs:g_MenuitemMasterSlaveUserCHS+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset] |
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| 275 | call Buffers_GetRomvarsValueToAXfromOffsetInBX |
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| 276 | test ax, FLG_DRVPARAMS_USERCHS |
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| 277 | jz SHORT .DisableCHandS |
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[286] | 278 | test ax, FLG_DRVPARAMS_USERLBA |
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| 279 | jnz SHORT .DisableCHandS |
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[57] | 280 | |
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| 281 | mov bx, g_MenuitemMasterSlaveCylinders |
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| 282 | call .EnableMenuitemFromCSBX |
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| 283 | mov bx, g_MenuitemMasterSlaveHeads |
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| 284 | call .EnableMenuitemFromCSBX |
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| 285 | mov bx, g_MenuitemMasterSlaveSectors |
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[286] | 286 | jmp SHORT .EnableMenuitemFromCSBX |
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[57] | 287 | |
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| 288 | ALIGN JUMP_ALIGN |
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| 289 | .DisableCHandS: |
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| 290 | mov bx, g_MenuitemMasterSlaveCylinders |
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| 291 | call .DisableMenuitemFromCSBX |
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| 292 | mov bx, g_MenuitemMasterSlaveHeads |
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| 293 | call .DisableMenuitemFromCSBX |
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| 294 | mov bx, g_MenuitemMasterSlaveSectors |
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[286] | 295 | jmp SHORT .DisableMenuitemFromCSBX |
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[57] | 296 | |
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[286] | 297 | |
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[57] | 298 | ;-------------------------------------------------------------------- |
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[286] | 299 | ; .EnableOrDisableUserLbaValue |
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| 300 | ; Parameters: |
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| 301 | ; SS:BP: Menu handle |
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| 302 | ; Returns: |
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| 303 | ; Nothing |
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| 304 | ; Corrupts registers: |
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| 305 | ; AX, BX |
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| 306 | ;-------------------------------------------------------------------- |
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| 307 | ALIGN JUMP_ALIGN |
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| 308 | .EnableOrDisableUserLbaValue: |
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| 309 | mov bx, [cs:g_MenuitemMasterSlaveUserLBA+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset] |
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| 310 | call Buffers_GetRomvarsValueToAXfromOffsetInBX |
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| 311 | mov bx, g_MenuitemMasterSlaveUserLbaValue |
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| 312 | test ax, FLG_DRVPARAMS_USERCHS |
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| 313 | jnz SHORT .DisableMenuitemFromCSBX |
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| 314 | test ax, FLG_DRVPARAMS_USERLBA |
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| 315 | jz SHORT .DisableMenuitemFromCSBX |
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[293] | 316 | ; Fall to .EnableMenuitemFromCSBX |
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[286] | 317 | |
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| 318 | |
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| 319 | ;-------------------------------------------------------------------- |
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[57] | 320 | ; .EnableMenuitemFromCSBX |
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| 321 | ; .DisableMenuitemFromCSBX |
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| 322 | ; Parameters: |
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| 323 | ; CS:BX: Ptr to MENUITEM |
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| 324 | ; Returns: |
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| 325 | ; Nothing |
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| 326 | ; Corrupts registers: |
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| 327 | ; Nothing |
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| 328 | ;-------------------------------------------------------------------- |
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| 329 | ALIGN JUMP_ALIGN |
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| 330 | .EnableMenuitemFromCSBX: |
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| 331 | or BYTE [cs:bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE |
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| 332 | ret |
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| 333 | |
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| 334 | ALIGN JUMP_ALIGN |
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| 335 | .DisableMenuitemFromCSBX: |
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| 336 | and BYTE [cs:bx+MENUITEM.bFlags], ~FLG_MENUITEM_VISIBLE |
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| 337 | ret |
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[286] | 338 | |
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| 339 | |
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| 340 | ;-------------------------------------------------------------------- |
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| 341 | ; MENUITEM value reader functions |
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| 342 | ; Parameters: |
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| 343 | ; AX: Value from MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset |
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| 344 | ; DS:SI: Ptr to MENUITEM |
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| 345 | ; ES:DI: Ptr to value variable |
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| 346 | ; Returns: |
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| 347 | ; AX: Value with possible modifications |
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| 348 | ; Corrupts registers: |
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| 349 | ; Nothing |
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| 350 | ;-------------------------------------------------------------------- |
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| 351 | ALIGN JUMP_ALIGN |
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| 352 | ValueReaderForUserLbaValue: |
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[345] | 353 | push dx |
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| 354 | |
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| 355 | mov ax, [es:di] |
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| 356 | mov dx, [es:di+2] ; DX:AX now holds user defined LBA28 limit |
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| 357 | add ax, BYTE 1 ; Increment by one |
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| 358 | adc dx, BYTE 0 |
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| 359 | |
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| 360 | xchg ax, dx ; SHR 16 |
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| 361 | eSHIFT_IM ax, 4, shr ; SHR 4 => AX = DX:AX / (1024*1024) |
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| 362 | |
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| 363 | pop dx |
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[286] | 364 | ret |
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| 365 | |
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| 366 | |
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| 367 | ;-------------------------------------------------------------------- |
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| 368 | ; MENUITEM value writer functions |
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| 369 | ; Parameters: |
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| 370 | ; AX: Value to be written to MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset |
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| 371 | ; DS:SI: Ptr to MENUITEM |
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| 372 | ; ES:DI: Ptr to value variable |
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| 373 | ; Returns: |
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| 374 | ; AX: Value to be stored |
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| 375 | ; Corrupts registers: |
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| 376 | ; Nothing |
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| 377 | ;-------------------------------------------------------------------- |
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| 378 | ALIGN JUMP_ALIGN |
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| 379 | ValueWriterForUserLbaValue: |
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[345] | 380 | push dx |
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| 381 | |
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| 382 | xor dx, dx |
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[286] | 383 | eSHIFT_IM ax, 4, shl |
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[345] | 384 | xchg dx, ax ; DX:AX now holds AX * 1024 * 1024 |
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| 385 | |
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| 386 | sub ax, BYTE 1 ; Decrement DX:AX by one |
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| 387 | sbb dx, BYTE 0 ; (necessary since maximum LBA28 sector count is 0FFF FFFFh) |
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| 388 | |
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| 389 | mov [es:di+2], dx ; Store DX by ourselves |
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| 390 | pop dx |
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| 391 | ret ; AX will be stored by our menu system |
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[369] | 392 | |
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| 393 | ; |
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| 394 | ; No change to CHS flag, but we use this opportunity to change defaults stored in the CHS values if we are |
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| 395 | ; changing in/out of user CHS settings (since we use these bytes in different ways with the LBA setting). |
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| 396 | ; |
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| 397 | ALIGN JUMP_ALIGN |
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| 398 | MasterSlaveMenu_WriteCHSFlag: |
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| 399 | test word [es:di], FLG_DRVPARAMS_USERCHS |
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| 400 | jnz .alreadySet |
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| 401 | |
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| 402 | push ax |
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| 403 | push di |
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| 404 | push si |
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| 405 | |
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| 406 | mov ax, MASTERSLAVE_CYLINDERS_DEFAULT |
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| 407 | mov si, g_MenuitemMasterSlaveCylinders |
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| 408 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI |
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| 409 | |
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| 410 | mov ax, MASTERSLAVE_HEADS_DEFAULT |
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| 411 | mov si, g_MenuitemMasterSlaveHeads |
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| 412 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI |
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| 413 | |
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| 414 | mov ax, MASTERSLAVE_SECTORS_DEFAULT |
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| 415 | mov si, g_MenuitemMasterSlaveSectors |
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| 416 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI |
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| 417 | |
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| 418 | pop si |
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| 419 | pop di |
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| 420 | pop ax |
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| 421 | |
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| 422 | .alreadySet: |
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| 423 | ret |
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| 424 | |
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| 425 | ; |
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| 426 | ; No change to LBA flag, but we use this opportunity to change defaults stored in the LBA value if we are |
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| 427 | ; changing in/out of user LBA settings (since we use these bytes in different ways with the CHS setting). |
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| 428 | ; |
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| 429 | ALIGN JUMP_ALIGN |
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| 430 | MasterSlaveMenu_WriteLBAFlag: |
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| 431 | test word [es:di], FLG_DRVPARAMS_USERLBA |
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| 432 | jnz .alreadySet |
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| 433 | |
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| 434 | push ax |
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| 435 | push di |
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| 436 | push si |
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| 437 | |
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| 438 | mov ax, MASTERSLAVE_USERLBA_DEFAULT |
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| 439 | mov si, g_MenuitemMasterSlaveUserLbaValue |
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| 440 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI |
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| 441 | |
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| 442 | pop si |
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| 443 | pop di |
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| 444 | pop ax |
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| 445 | |
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| 446 | .alreadySet: |
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| 447 | ret |
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