[392] | 1 | ; Project name : XTIDE Universal BIOS |
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| 2 | ; Description : Hotkey Bar related functions. |
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| 3 | |
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| 4 | ; |
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[399] | 5 | ; XTIDE Universal BIOS and Associated Tools |
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[392] | 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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[399] | 12 | ; |
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[392] | 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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[399] | 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 18 | ; |
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[392] | 19 | |
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| 20 | ; Section containing code |
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| 21 | SECTION .text |
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| 22 | |
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| 23 | ;-------------------------------------------------------------------- |
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| 24 | ; HotkeyBar_UpdateDuringDriveDetection |
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| 25 | ; Parameters: |
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| 26 | ; DS: RAMVARS segment |
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| 27 | ; ES: BDA segment (zero) |
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| 28 | ; Returns: |
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| 29 | ; Nothing |
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| 30 | ; Corrupts registers: |
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| 31 | ; AX, CX, DX, SI, DI |
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| 32 | ;-------------------------------------------------------------------- |
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| 33 | HotkeyBar_UpdateDuringDriveDetection: |
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| 34 | call ScanHotkeysFromKeyBufferAndStoreToBootvars |
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| 35 | ; Fall to HotkeyBar_DrawToTopOfScreen |
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| 36 | |
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| 37 | |
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| 38 | ;-------------------------------------------------------------------- |
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| 39 | ; HotkeyBar_DrawToTopOfScreen |
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| 40 | ; Parameters: |
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| 41 | ; DS: RAMVARS segment |
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| 42 | ; ES: BDA segment (zero) |
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| 43 | ; Returns: |
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| 44 | ; Nothing |
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| 45 | ; Corrupts registers: |
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| 46 | ; AX, CX, DX, SI, DI |
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| 47 | ;-------------------------------------------------------------------- |
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| 48 | HotkeyBar_DrawToTopOfScreen: |
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| 49 | ; Store current screen coordinates to be restored |
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| 50 | ; when Hotkey Bar is rendered |
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| 51 | call DetectPrint_GetSoftwareCoordinatesToAX |
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| 52 | push ax |
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| 53 | |
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| 54 | call MoveCursorToScreenTopLeftCorner |
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| 55 | ; Fall to .PrintFloppyDriveHotkeys |
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| 56 | |
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| 57 | ;-------------------------------------------------------------------- |
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| 58 | ; .PrintFloppyDriveHotkeys |
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| 59 | ; Parameters: |
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| 60 | ; DS: RAMVARS segment |
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| 61 | ; ES: BDA segment (zero) |
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| 62 | ; Returns: |
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| 63 | ; Nothing |
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| 64 | ; Corrupts registers: |
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| 65 | ; AX, CX, DX, SI, DI |
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| 66 | ;-------------------------------------------------------------------- |
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| 67 | .PrintFloppyDriveHotkeys: |
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| 68 | call FloppyDrive_GetCountToAX |
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| 69 | test ax, ax ; Any Floppy Drives? |
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| 70 | jz SHORT .SkipFloppyDriveHotkeys |
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| 71 | |
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| 72 | mov di, DEFAULT_FLOPPY_DRIVE_LETTER | (ANGLE_QUOTE_RIGHT<<8) |
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| 73 | mov cl, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bFddLetter] |
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| 74 | mov si, g_szFDD |
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| 75 | call FormatDriveHotkeyString |
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| 76 | |
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| 77 | .SkipFloppyDriveHotkeys: |
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| 78 | ; Fall to .PrintHardDriveHotkeys |
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| 79 | |
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| 80 | ;-------------------------------------------------------------------- |
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| 81 | ; .PrintHardDriveHotkeys |
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| 82 | ; Parameters: |
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| 83 | ; DS: RAMVARS segment |
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| 84 | ; ES: BDA segment (zero) |
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| 85 | ; Returns: |
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| 86 | ; Nothing |
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| 87 | ; Corrupts registers: |
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| 88 | ; AX, CX, DX, SI, DI |
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| 89 | ;-------------------------------------------------------------------- |
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| 90 | call HotkeyBar_GetLetterForFirstHardDriveToAX |
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| 91 | mov ah, ANGLE_QUOTE_RIGHT |
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| 92 | xchg di, ax |
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| 93 | mov cl, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bHddLetter] |
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| 94 | mov si, g_szHDD |
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| 95 | call FormatDriveHotkeyString |
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| 96 | ; Fall to .PrintBootMenuHotkey |
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| 97 | |
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| 98 | ;-------------------------------------------------------------------- |
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| 99 | ; .PrintBootMenuHotkey |
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| 100 | ; Parameters: |
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| 101 | ; ES: BDA segment (zero) |
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| 102 | ; Returns: |
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| 103 | ; Nothing |
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| 104 | ; Corrupts registers: |
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| 105 | ; AX, CX, DX, SI, DI |
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| 106 | ;-------------------------------------------------------------------- |
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| 107 | .PrintBootMenuHotkey: |
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| 108 | %ifdef MODULE_BOOT_MENU |
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| 109 | mov ah, BOOT_MENU_HOTKEY_SCANCODE |
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| 110 | mov di, 'F' | ('2'<<8) ; F2 |
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| 111 | mov si, g_szBootMenu |
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| 112 | call FormatFunctionHotkeyString |
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| 113 | %endif |
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| 114 | ; Fall to .PrintRomBootHotkey |
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| 115 | |
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| 116 | ;-------------------------------------------------------------------- |
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| 117 | ; .PrintRomBootHotkey |
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| 118 | ; Parameters: |
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| 119 | ; ES: BDA segment (zero) |
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| 120 | ; Returns: |
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| 121 | ; Nothing |
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| 122 | ; Corrupts registers: |
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| 123 | ; AX, CX, DX, SI, DI |
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| 124 | ;-------------------------------------------------------------------- |
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| 125 | .PrintRomBootHotkey: |
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| 126 | mov ah, ROM_BOOT_HOTKEY_SCANCODE |
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| 127 | mov di, 'F' | ('8'<<8) ; F8 |
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| 128 | mov si, g_szRomBoot |
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| 129 | call FormatFunctionHotkeyString |
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| 130 | ; Fall to .EndHotkeyBarRendering |
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| 131 | |
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| 132 | ;-------------------------------------------------------------------- |
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| 133 | ; .EndHotkeyBarRendering |
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| 134 | ; Parameters: |
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| 135 | ; Stack: Screen coordinates before drawing Hotkey Bar |
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| 136 | ; Returns: |
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| 137 | ; Nothing |
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| 138 | ; Corrupts registers: |
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| 139 | ; AX, CX, DI |
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| 140 | ;-------------------------------------------------------------------- |
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| 141 | .EndHotkeyBarRendering: |
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| 142 | call HotkeyBar_ClearRestOfTopRow |
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| 143 | pop ax |
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| 144 | jmp SHORT HotkeyBar_RestoreCursorCoordinatesFromAX |
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| 145 | |
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| 146 | |
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| 147 | ;-------------------------------------------------------------------- |
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| 148 | ; HotkeyBar_ClearRestOfTopRow |
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| 149 | ; Parameters: |
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| 150 | ; Nothing |
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| 151 | ; Returns: |
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| 152 | ; Nothing |
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| 153 | ; Corrupts registers: |
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| 154 | ; AX, CX, DI |
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| 155 | ;-------------------------------------------------------------------- |
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| 156 | HotkeyBar_ClearRestOfTopRow: |
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| 157 | CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH |
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| 158 | eMOVZX cx, al |
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| 159 | CALL_DISPLAY_LIBRARY GetSoftwareCoordinatesToAX |
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| 160 | sub cl, al |
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| 161 | mov al, ' ' |
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| 162 | CALL_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX |
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| 163 | ret |
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| 164 | |
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| 165 | |
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| 166 | ;-------------------------------------------------------------------- |
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| 167 | ; FormatDriveHotkeyString |
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| 168 | ; Parameters: |
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| 169 | ; CL: Drive letter hotkey from BOOTVARS |
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| 170 | ; DI low: First character for drive key string |
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| 171 | ; DI high: Second character for drive key string (ANGLE_QUOTE_RIGHT) |
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| 172 | ; SI: Offset to hotkey description string |
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| 173 | ; ES: BDA segment (zero) |
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| 174 | ; Returns: |
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| 175 | ; Nothing |
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| 176 | ; Corrupts registers: |
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| 177 | ; AX, CX, DX, SI, DI |
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| 178 | ;-------------------------------------------------------------------- |
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| 179 | FormatDriveHotkeyString: |
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| 180 | ePUSH_T ax, PushHotkeyParamsAndFormat |
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| 181 | jmp SHORT GetNonSelectedHotkeyDescriptionAttributeToDX |
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| 182 | |
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| 183 | |
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| 184 | ;-------------------------------------------------------------------- |
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| 185 | ; FormatFunctionHotkeyString |
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| 186 | ; Parameters: |
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| 187 | ; AH: Hotkey scancode to compare with BOOTVARS.hotkeyVars+HOTKEYVARS.bScancode |
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| 188 | ; SI: Offset to hotkey description string |
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| 189 | ; DI low: First character for drive key string |
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| 190 | ; DI high: Second character for drive key string |
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| 191 | ; ES: BDA segment (zero) |
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| 192 | ; Returns: |
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| 193 | ; Nothing |
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| 194 | ; Corrupts registers: |
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| 195 | ; AX, CX, DX, SI, DI |
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| 196 | ;-------------------------------------------------------------------- |
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| 197 | FormatFunctionHotkeyString: |
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| 198 | ePUSH_T ax, PushHotkeyParamsAndFormat |
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| 199 | mov cx, g_szBoot ; Description parameter string |
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| 200 | cmp [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bScancode], ah |
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| 201 | jne SHORT GetNonSelectedHotkeyDescriptionAttributeToDX |
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| 202 | ; Fall to GetSelectedHotkeyDescriptionAttributeToDX |
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| 203 | |
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| 204 | |
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| 205 | ;-------------------------------------------------------------------- |
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| 206 | ; GetSelectedHotkeyDescriptionAttributeToDX |
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| 207 | ; GetNonSelectedHotkeyDescriptionAttributeToDX |
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| 208 | ; Parameters: |
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| 209 | ; CF: Set if selected hotkey |
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| 210 | ; Cleared if unselected hotkey |
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[410] | 211 | ; ES: BDA segment (zero) |
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[392] | 212 | ; Returns: |
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| 213 | ; DX: Description Attribute |
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| 214 | ; Corrupts registers: |
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| 215 | ; AX |
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| 216 | ;-------------------------------------------------------------------- |
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| 217 | %ifdef MODULE_BOOT_MENU |
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| 218 | GetSelectedHotkeyDescriptionAttributeToDX: |
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| 219 | push si |
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| 220 | mov si, ATTRIBUTE_CHARS.cHurryTimeout ; Selected hotkey |
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| 221 | jmp SHORT GetDescriptionAttributeToDX |
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| 222 | |
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| 223 | GetNonSelectedHotkeyDescriptionAttributeToDX: |
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| 224 | push si |
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| 225 | mov si, ATTRIBUTE_CHARS.cHighlightedItem ; Unselected hotkey |
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| 226 | |
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| 227 | ; Display Library should not be called like this |
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| 228 | GetDescriptionAttributeToDX: |
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| 229 | call MenuAttribute_GetToAXfromTypeInSI |
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| 230 | pop si |
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| 231 | xchg dx, ax ; DX = Description attribute |
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| 232 | ret |
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| 233 | |
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| 234 | %else ; No boot menu so use simpler attributes |
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| 235 | |
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| 236 | GetSelectedHotkeyDescriptionAttributeToDX: |
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[410] | 237 | mov dx, (COLOR_ATTRIBUTE(COLOR_YELLOW, COLOR_CYAN) << 8) | MONO_REVERSE_BLINK |
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| 238 | jmp SHORT SelectAttributeFromDHorDLbasedOnVideoMode |
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[392] | 239 | |
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| 240 | GetNonSelectedHotkeyDescriptionAttributeToDX: |
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[410] | 241 | mov dx, (COLOR_ATTRIBUTE(COLOR_BLACK, COLOR_CYAN) << 8) | MONO_REVERSE |
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| 242 | SelectAttributeFromDHorDLbasedOnVideoMode: |
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| 243 | mov al, [es:BDA.bVidMode] |
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| 244 | shr al, 1 |
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| 245 | jnc SHORT .AttributeLoadedToDL ; Black & White modes |
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| 246 | shr al, 1 |
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| 247 | jnz SHORT .AttributeLoadedToDL ; MDA |
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| 248 | mov dl, dh |
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| 249 | .AttributeLoadedToDL: |
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[392] | 250 | ret |
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[410] | 251 | |
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[392] | 252 | %endif |
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| 253 | |
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| 254 | |
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| 255 | ;-------------------------------------------------------------------- |
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| 256 | ; PushHotkeyParamsAndFormat |
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| 257 | ; Parameters: |
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| 258 | ; DI low: First character |
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| 259 | ; DI high: Second character |
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| 260 | ; DX: Description Attribute |
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| 261 | ; CX: Description string parameter |
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| 262 | ; CS:SI: Description string |
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| 263 | ; Returns: |
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| 264 | ; Nothing |
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| 265 | ; Corrupts registers: |
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| 266 | ; AX, SI, DI |
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| 267 | ;-------------------------------------------------------------------- |
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| 268 | PushHotkeyParamsAndFormat: |
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| 269 | push bp |
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| 270 | mov bp, sp |
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| 271 | |
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| 272 | mov ax, MONO_BRIGHT |
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| 273 | push ax ; Key attribute |
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| 274 | xchg ax, di |
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| 275 | push ax ; First character |
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| 276 | xchg al, ah |
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| 277 | push ax ; Second character |
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| 278 | |
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| 279 | push dx ; Description attribute |
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| 280 | push si ; Description string |
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| 281 | push cx ; Description string parameter |
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| 282 | |
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| 283 | push di ; Key attribute for last space |
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| 284 | mov si, g_szHotkey |
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| 285 | jmp DetectPrint_FormatCSSIfromParamsInSSBP |
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| 286 | |
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| 287 | |
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| 288 | ;-------------------------------------------------------------------- |
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| 289 | ; MoveCursorToScreenTopLeftCorner |
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| 290 | ; Parameters: |
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| 291 | ; Nothing |
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| 292 | ; Returns: |
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| 293 | ; Nothing |
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| 294 | ; Corrupts registers: |
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| 295 | ; AX, DI |
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| 296 | ;-------------------------------------------------------------------- |
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| 297 | MoveCursorToScreenTopLeftCorner: |
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| 298 | xor ax, ax ; Top left corner (0, 0) |
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| 299 | ; Fall to HotkeyBar_RestoreCursorCoordinatesFromAX |
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| 300 | |
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| 301 | |
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| 302 | ;-------------------------------------------------------------------- |
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| 303 | ; HotkeyBar_RestoreCursorCoordinatesFromAX |
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| 304 | ; Parameters: |
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| 305 | ; Nothing |
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| 306 | ; Returns: |
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| 307 | ; Nothing |
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| 308 | ; Corrupts registers: |
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| 309 | ; AX, DI |
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| 310 | ;-------------------------------------------------------------------- |
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| 311 | HotkeyBar_RestoreCursorCoordinatesFromAX: |
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| 312 | CALL_DISPLAY_LIBRARY SetCursorCoordinatesFromAX |
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| 313 | ret |
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| 314 | |
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| 315 | |
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| 316 | ;-------------------------------------------------------------------- |
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[395] | 317 | ; HotkeyBar_StoreHotkeyToBootvarsForDriveLetterInDL |
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| 318 | ; Parameters: |
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| 319 | ; DS: RAMVARS segment |
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| 320 | ; ES: BDA segment (zero) |
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| 321 | ; DL: Drive Letter ('A'...) |
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| 322 | ; Returns: |
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| 323 | ; Nothing |
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| 324 | ; Corrupts registers: |
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| 325 | ; AX, CX, DI |
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| 326 | ;-------------------------------------------------------------------- |
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| 327 | HotkeyBar_StoreHotkeyToBootvarsForDriveLetterInDL: |
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| 328 | eMOVZX ax, dl |
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[491] | 329 | xor al, 32 ; Upper case drive letter to lower case keystroke |
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[395] | 330 | jmp SHORT HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX |
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| 331 | |
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| 332 | |
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| 333 | ;-------------------------------------------------------------------- |
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[392] | 334 | ; ScanHotkeysFromKeyBufferAndStoreToBootvars |
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| 335 | ; Parameters: |
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| 336 | ; DS: RAMVARS segment |
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| 337 | ; ES: BDA segment (zero) |
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| 338 | ; Returns: |
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| 339 | ; Nothing |
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| 340 | ; Corrupts registers: |
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| 341 | ; AX, CX |
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| 342 | ;-------------------------------------------------------------------- |
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| 343 | ScanHotkeysFromKeyBufferAndStoreToBootvars: |
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| 344 | call Keyboard_GetKeystrokeToAX |
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| 345 | jz SHORT NoHotkeyToProcess |
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| 346 | |
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| 347 | ePUSH_T cx, ScanHotkeysFromKeyBufferAndStoreToBootvars |
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| 348 | ; Fall to HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX |
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| 349 | |
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| 350 | |
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| 351 | ;-------------------------------------------------------------------- |
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| 352 | ; HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX |
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| 353 | ; Parameters: |
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| 354 | ; AL: Hotkey ASCII code |
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| 355 | ; AH: Hotkey Scancode |
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| 356 | ; DS: RAMVARS segment |
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| 357 | ; ES: BDA segment (zero) |
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| 358 | ; Returns: |
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| 359 | ; CF: Set if valid keystroke |
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| 360 | ; Clear if invalid keystroke |
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| 361 | ; Corrupts registers: |
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| 362 | ; AX, CX, DI |
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| 363 | ;-------------------------------------------------------------------- |
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| 364 | HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX: |
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| 365 | ; Boot menu |
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| 366 | %ifdef MODULE_BOOT_MENU |
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| 367 | cmp ah, BOOT_MENU_HOTKEY_SCANCODE ; Display Boot Menu? |
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| 368 | je SHORT .StoreFunctionHotkeyFromAH |
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| 369 | %endif |
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| 370 | |
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| 371 | ; ROM Boot |
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| 372 | cmp ah, ROM_BOOT_HOTKEY_SCANCODE ; ROM Boot? |
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| 373 | je SHORT .StoreFunctionHotkeyFromAH |
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| 374 | |
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| 375 | ; Drive letter hotkeys remaining, allow 'a' to 'z' |
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| 376 | call Char_IsLowerCaseLetterInAL |
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| 377 | jnc SHORT .KeystrokeIsNotValidHotkey |
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[491] | 378 | xor al, 32 ; We want to print upper case letters |
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[392] | 379 | |
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| 380 | ; Clear HD First flag to assume Floppy Drive hotkey |
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| 381 | mov di, BOOTVARS.hotkeyVars+HOTKEYVARS.bFlags |
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| 382 | and BYTE [es:di], ~FLG_HOTKEY_HD_FIRST |
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| 383 | |
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| 384 | ; Determine if Floppy or Hard Drive hotkey |
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| 385 | eMOVZX cx, al ; Clear CH to clear scancode |
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| 386 | call HotkeyBar_GetLetterForFirstHardDriveToAX |
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| 387 | cmp cl, al |
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| 388 | jb SHORT .StoreDriveLetter ; Store Floppy Drive letter |
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| 389 | |
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| 390 | ; Store Hard Drive letter |
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| 391 | or BYTE [es:di], FLG_HOTKEY_HD_FIRST |
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| 392 | |
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| 393 | .StoreDriveLetter: |
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[399] | 394 | adc di, BYTE 1 ; Add CF if Floppy Drive |
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[392] | 395 | xchg ax, cx |
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[399] | 396 | mov [es:di], al ; AH = zero to clear function hotkey |
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[392] | 397 | |
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| 398 | .StoreFunctionHotkeyFromAH: |
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| 399 | mov [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bScancode], ah |
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| 400 | stc ; Valid hotkey |
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| 401 | |
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| 402 | .KeystrokeIsNotValidHotkey: |
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| 403 | NoHotkeyToProcess: |
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| 404 | ret |
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| 405 | |
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| 406 | |
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| 407 | ;-------------------------------------------------------------------- |
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| 408 | ; HotkeyBar_GetSecondaryBootDriveNumberToDL |
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| 409 | ; HotkeyBar_GetPrimaryBootDriveNumberToDL |
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| 410 | ; Parameters: |
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| 411 | ; DS: RAMVARS segment |
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| 412 | ; ES: BDA segment (zero) |
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| 413 | ; Returns: |
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| 414 | ; DL: Drive selected as boot device |
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| 415 | ; Corrupts registers: |
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| 416 | ; AX, DH |
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| 417 | ;-------------------------------------------------------------------- |
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| 418 | HotkeyBar_GetSecondaryBootDriveNumberToDL: |
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| 419 | mov dx, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.wHddAndFddLetters] |
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| 420 | xchg dl, dh |
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| 421 | jmp SHORT GetBootDriveNumberFromLettersInDX |
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| 422 | |
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| 423 | HotkeyBar_GetPrimaryBootDriveNumberToDL: |
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| 424 | mov dx, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.wHddAndFddLetters] |
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| 425 | GetBootDriveNumberFromLettersInDX: |
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| 426 | test BYTE [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bFlags], FLG_HOTKEY_HD_FIRST |
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| 427 | eCMOVZ dl, dh |
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[395] | 428 | ; Fall to HotkeyBar_ConvertDriveLetterInDLtoDriveNumber |
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[392] | 429 | |
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| 430 | |
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| 431 | ;-------------------------------------------------------------------- |
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[395] | 432 | ; HotkeyBar_ConvertDriveLetterInDLtoDriveNumber |
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[392] | 433 | ; Parameters: |
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| 434 | ; DS: RAMVARS segment |
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| 435 | ; DL: Drive letter ('A'...) |
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| 436 | ; Returns: |
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| 437 | ; DL: Drive number (0xh for Floppy Drives, 8xh for Hard Drives) |
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| 438 | ; Corrupts registers: |
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| 439 | ; AX, DH |
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| 440 | ;-------------------------------------------------------------------- |
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[395] | 441 | HotkeyBar_ConvertDriveLetterInDLtoDriveNumber: |
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[392] | 442 | call HotkeyBar_GetLetterForFirstHardDriveToAX |
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| 443 | cmp dl, al |
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| 444 | jb SHORT .ConvertLetterInDLtoFloppyDriveNumber |
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| 445 | |
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| 446 | ; Convert letter in DL to Hard Drive number |
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| 447 | sub dl, al |
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| 448 | or dl, 80h |
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| 449 | ret |
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| 450 | |
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| 451 | .ConvertLetterInDLtoFloppyDriveNumber: |
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| 452 | sub dl, DEFAULT_FLOPPY_DRIVE_LETTER |
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| 453 | ret |
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| 454 | |
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| 455 | |
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| 456 | ;-------------------------------------------------------------------- |
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| 457 | ; HotkeyBar_ConvertDriveNumberFromDLtoDriveLetter |
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| 458 | ; Parameters: |
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| 459 | ; DL: Drive number (0xh for Floppy Drives, 8xh for Hard Drives) |
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| 460 | ; DS: RAMVARS Segment |
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| 461 | ; Returns: |
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| 462 | ; DL: Drive letter ('A'...) |
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| 463 | ; CF: Set if Hard Drive |
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| 464 | ; Clear if Floppy Drive |
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| 465 | ; Corrupts registers: |
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| 466 | ; AX |
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| 467 | ;-------------------------------------------------------------------- |
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| 468 | HotkeyBar_ConvertDriveNumberFromDLtoDriveLetter: |
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| 469 | test dl, dl |
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| 470 | jns SHORT .GetDefaultFloppyDrive |
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| 471 | |
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| 472 | ; Store default hard drive to boot from |
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| 473 | call HotkeyBar_GetLetterForFirstHardDriveToAX |
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| 474 | sub dl, 80h |
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| 475 | add dl, al |
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| 476 | stc |
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| 477 | ret |
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| 478 | |
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| 479 | .GetDefaultFloppyDrive: |
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| 480 | add dl, DEFAULT_FLOPPY_DRIVE_LETTER ; Clears CF |
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| 481 | ret |
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| 482 | |
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| 483 | |
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| 484 | ;-------------------------------------------------------------------- |
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| 485 | ; Returns letter for first hard disk. Usually it will be 'C' but it |
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| 486 | ; can be higher if more than two floppy drives are found. |
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| 487 | ; |
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| 488 | ; HotkeyBar_GetLetterForFirstHardDriveToAX |
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| 489 | ; Parameters: |
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| 490 | ; DS: RAMVARS segment |
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| 491 | ; Returns: |
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| 492 | ; AX: Upper case letter for first hard disk |
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| 493 | ; Corrupts registers: |
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| 494 | ; Nothing |
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| 495 | ;-------------------------------------------------------------------- |
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| 496 | HotkeyBar_GetLetterForFirstHardDriveToAX: |
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| 497 | call FloppyDrive_GetCountToAX |
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| 498 | add al, DEFAULT_FLOPPY_DRIVE_LETTER |
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| 499 | MAX_U al, DEFAULT_HARD_DRIVE_LETTER |
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| 500 | ret |
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