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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5 | ; XTIDE Universal BIOS and Associated Tools
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6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
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7 | ;
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8 | ; This program is free software; you can redistribute it and/or modify
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9 | ; it under the terms of the GNU General Public License as published by
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10 | ; the Free Software Foundation; either version 2 of the License, or
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11 | ; (at your option) any later version.
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12 | ;
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13 | ; This program is distributed in the hope that it will be useful,
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14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | ; GNU General Public License for more details.
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17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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18 | ;
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19 |
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20 | ; Section containing code
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21 | SECTION .text
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22 |
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23 | ;--------------------------------------------------------------------
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24 | ; Scans key presses and draws any hotkey changes.
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25 | ;
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26 | ; HotkeyBar_UpdateDuringDriveDetection
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27 | ; Parameters:
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28 | ; DS: RAMVARS segment
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29 | ; ES: BDA segment (zero)
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30 | ; Returns:
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31 | ; Nothing
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32 | ; Corrupts registers:
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33 | ; AX, CX, DX, SI, DI
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34 | ;--------------------------------------------------------------------
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35 | HotkeyBar_UpdateDuringDriveDetection:
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36 | call ScanHotkeysFromKeyBufferAndStoreToBootvars
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37 | ; Fall to HotkeyBar_DrawToTopOfScreen
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38 |
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39 |
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40 | ;--------------------------------------------------------------------
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41 | ; HotkeyBar_DrawToTopOfScreen
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42 | ; Parameters:
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43 | ; DS: RAMVARS segment
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44 | ; ES: BDA segment (zero)
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45 | ; Returns:
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46 | ; Nothing
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47 | ; Corrupts registers:
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48 | ; AX, CX, DX, SI, DI
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49 | ;--------------------------------------------------------------------
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50 | HotkeyBar_DrawToTopOfScreen:
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51 | ; Store current screen coordinates to be restored
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52 | ; when Hotkey Bar is rendered
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53 | call DetectPrint_GetSoftwareCoordinatesToAX
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54 | push ax
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55 |
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56 | call MoveCursorToScreenTopLeftCorner
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57 | ; Fall to .PrintFloppyDriveHotkeys
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58 |
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59 | ;--------------------------------------------------------------------
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60 | ; .PrintFloppyDriveHotkeys
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61 | ; Parameters:
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62 | ; DS: RAMVARS segment
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63 | ; ES: BDA segment (zero)
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64 | ; Returns:
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65 | ; Nothing
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66 | ; Corrupts registers:
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67 | ; AX, CX, DX, SI, DI
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68 | ;--------------------------------------------------------------------
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69 | .PrintFloppyDriveHotkeys:
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70 | call FloppyDrive_GetCountToAX
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71 | xchg cx, ax ; Any Floppy Drives?
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72 | jcxz .SkipFloppyDriveHotkeys
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73 |
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74 | mov ax, (ANGLE_QUOTE_RIGHT << 8) | DEFAULT_FLOPPY_DRIVE_LETTER
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75 | mov cl, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bFddLetter]
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76 | mov di, g_szFDD
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77 | call FormatDriveHotkeyString
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78 |
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79 | .SkipFloppyDriveHotkeys:
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80 | ; Fall to .PrintHardDriveHotkeys
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81 |
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82 | ;--------------------------------------------------------------------
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83 | ; .PrintHardDriveHotkeys
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84 | ; Parameters:
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85 | ; DS: RAMVARS segment
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86 | ; ES: BDA segment (zero)
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87 | ; Returns:
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88 | ; Nothing
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89 | ; Corrupts registers:
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90 | ; AX, CX, DX, SI, DI
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91 | ;--------------------------------------------------------------------
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92 | call BootVars_GetLetterForFirstHardDriveToAX
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93 | mov ah, ANGLE_QUOTE_RIGHT
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94 | mov cl, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bHddLetter]
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95 | mov di, g_szHDD
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96 | call FormatDriveHotkeyString
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97 | ; Fall to .PrintBootMenuHotkey
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98 |
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99 | ;--------------------------------------------------------------------
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100 | ; .PrintBootMenuHotkey
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101 | ; Parameters:
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102 | ; ES: BDA segment (zero)
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103 | ; Returns:
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104 | ; Nothing
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105 | ; Corrupts registers:
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106 | ; AX, CX, DX, SI, DI
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107 | ;--------------------------------------------------------------------
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108 | .PrintBootMenuHotkey:
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109 | %ifdef MODULE_BOOT_MENU
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110 | mov ax, BOOT_MENU_HOTKEY_SCANCODE | ('2' << 8)
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111 | mov di, g_szBootMenu
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112 | call FormatFunctionHotkeyString
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113 | %endif
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114 | ; Fall to .PrintComDetectHotkey
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115 |
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116 | ;--------------------------------------------------------------------
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117 | ; .PrintComDetectHotkey
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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 | .PrintComDetectHotkey:
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126 | %ifdef MODULE_SERIAL
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127 | mov ax, COM_DETECT_HOTKEY_SCANCODE | ('6' << 8)
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128 | mov di, g_szHotComDetect
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129 | call FormatFunctionHotkeyString
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130 | %endif
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131 | ; Fall to .PrintRomBootHotkey
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132 |
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133 | ;--------------------------------------------------------------------
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134 | ; .PrintRomBootHotkey
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135 | ; Parameters:
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136 | ; ES: BDA segment (zero)
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137 | ; Returns:
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138 | ; Nothing
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139 | ; Corrupts registers:
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140 | ; AX, CX, DX, SI, DI
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141 | ;--------------------------------------------------------------------
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142 | .PrintRomBootHotkey:
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143 | mov ax, ROM_BOOT_HOTKEY_SCANCODE | ('8' << 8)
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144 | mov di, g_szRomBoot
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145 | call FormatFunctionHotkeyString
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146 | ; Fall to .EndHotkeyBarRendering
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147 |
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148 | ;--------------------------------------------------------------------
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149 | ; .EndHotkeyBarRendering
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150 | ; Parameters:
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151 | ; Stack: Screen coordinates before drawing Hotkey Bar
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152 | ; Returns:
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153 | ; Nothing
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154 | ; Corrupts registers:
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155 | ; AX, CX, DI
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156 | ;--------------------------------------------------------------------
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157 | .EndHotkeyBarRendering:
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158 | call HotkeyBar_ClearRestOfTopRow
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159 | pop ax
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160 | jmp SHORT HotkeyBar_RestoreCursorCoordinatesFromAX
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161 |
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162 |
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163 | ;--------------------------------------------------------------------
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164 | ; HotkeyBar_ClearRestOfTopRow
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165 | ; Parameters:
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166 | ; Nothing
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167 | ; Returns:
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168 | ; Nothing
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169 | ; Corrupts registers:
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170 | ; AX, CX, DI
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171 | ;--------------------------------------------------------------------
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172 | HotkeyBar_ClearRestOfTopRow:
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173 | CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
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174 | eMOVZX cx, al
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175 | CALL_DISPLAY_LIBRARY GetSoftwareCoordinatesToAX
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176 | sub cl, al
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177 | mov al, ' '
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178 | JMP_DISPLAY_LIBRARY PrintRepeatedCharacterFromALwithCountInCX
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179 |
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180 |
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181 | ;--------------------------------------------------------------------
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182 | ; FormatDriveHotkeyString
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183 | ; Parameters:
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184 | ; CL: Drive letter hotkey from BOOTVARS
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185 | ; AL: First character for drive key string
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186 | ; AH: Second character for drive key string (ANGLE_QUOTE_RIGHT)
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187 | ; SI: Offset to hotkey description string
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188 | ; ES: BDA segment (zero)
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189 | ; Returns:
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190 | ; Nothing
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191 | ; Corrupts registers:
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192 | ; AX, CX, DX, SI, DI
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193 | ;--------------------------------------------------------------------
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194 | ;; No work to do before going into FormatFunctionHotkeyString
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195 | FormatDriveHotkeyString equ GetNonSelectedHotkeyDescriptionAttributeToDX
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196 |
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197 | ;--------------------------------------------------------------------
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198 | ; FormatFunctionHotkeyString
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199 | ; Parameters:
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200 | ; AL: Scancode of function key, to know which if any to show as selected
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201 | ; Later replaced with an 'F' for the call to the output routine
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202 | ; AH: Second character for drive key string
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203 | ; SI: Offset to hotkey description string
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204 | ; ES: BDA segment (zero)
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205 | ; Returns:
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206 | ; Nothing
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207 | ; Corrupts registers:
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208 | ; AX, CX, DX, SI, DI
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209 | ;--------------------------------------------------------------------
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210 | FormatFunctionHotkeyString:
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211 | xor cx, cx ; Null character, eaten in output routines
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212 |
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213 | cmp [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bScancode], al
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214 | mov al, 'F' ; Replace scancode with character for output
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215 |
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216 | %ifdef MODULE_BOOT_MENU
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217 |
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218 | mov si, ATTRIBUTE_CHARS.cHurryTimeout ; Selected hotkey
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219 | je SHORT GetDescriptionAttributeToDX ; From compare with bScancode above
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220 |
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221 | GetNonSelectedHotkeyDescriptionAttributeToDX:
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222 | mov si, ATTRIBUTE_CHARS.cHighlightedItem ; Unselected hotkey
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223 |
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224 | ; Display Library should not be called like this
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225 | GetDescriptionAttributeToDX:
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226 | xchg dx, ax
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227 | call MenuAttribute_GetToAXfromTypeInSI
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228 | xchg dx, ax ; DX = Description attribute
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229 | ;; fall through to PushHotkeyParamsAndFormat
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230 |
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231 |
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232 | %else ; if no MODULE_BOOT_MENU - No boot menu so use simpler attributes
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233 |
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234 | mov dx, (COLOR_ATTRIBUTE(COLOR_YELLOW, COLOR_CYAN) << 8) | MONO_REVERSE_BLINK
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235 | je SHORT SelectAttributeFromDHorDLbasedOnVideoMode ; From compare with bScancode above
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236 |
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237 | GetNonSelectedHotkeyDescriptionAttributeToDX:
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238 | mov dx, (COLOR_ATTRIBUTE(COLOR_BLACK, COLOR_CYAN) << 8) | MONO_REVERSE
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239 |
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240 | SelectAttributeFromDHorDLbasedOnVideoMode:
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241 | mov ch, [es:BDA.bVidMode] ; We only need to preserve CL
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242 | shr ch, 1
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243 | jnc SHORT .AttributeLoadedToDL ; Black & White modes
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244 | shr ch, 1
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245 | jnz SHORT .AttributeLoadedToDL ; MDA
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246 | mov dl, dh
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247 | .AttributeLoadedToDL:
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248 | ;; fall through to PushHotkeyParamsAndFormat
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249 |
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250 | %endif ; MODULE_BOOT_MENU
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251 |
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252 |
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253 | ;--------------------------------------------------------------------
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254 | ; PushHotkeyParamsAndFormat
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255 | ; Parameters:
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256 | ; AL: First character
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257 | ; AH: Second character
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258 | ; DX: Description Attribute
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259 | ; CX: Description string parameter
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260 | ; CS:DI: Description string
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261 | ; Returns:
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262 | ; Nothing
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263 | ; Corrupts registers:
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264 | ; AX, SI, DI
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265 | ;--------------------------------------------------------------------
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266 | PushHotkeyParamsAndFormat:
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267 | push bp
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268 | mov bp, sp
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269 |
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270 | mov si, MONO_BRIGHT
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271 |
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272 | push si ; Key attribute
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273 | push ax ; First Character
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274 | mov al, ah
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275 | push ax ; Second Character
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276 |
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277 | push dx ; Description attribute
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278 | push di ; Description string
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279 | push cx ; Description string parameter
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280 |
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281 | push si ; Key attribute for last space
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282 |
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283 | mov si, g_szHotkey
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284 | jmp DetectPrint_FormatCSSIfromParamsInSSBP
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285 |
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286 |
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287 | ;--------------------------------------------------------------------
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288 | ; MoveCursorToScreenTopLeftCorner
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289 | ; Parameters:
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290 | ; Nothing
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291 | ; Returns:
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292 | ; Nothing
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293 | ; Corrupts registers:
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294 | ; AX, DI
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295 | ;--------------------------------------------------------------------
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296 | MoveCursorToScreenTopLeftCorner:
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297 | xor ax, ax ; Top left corner (0, 0)
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298 | ; Fall to HotkeyBar_RestoreCursorCoordinatesFromAX
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299 |
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300 |
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301 | ;--------------------------------------------------------------------
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302 | ; HotkeyBar_RestoreCursorCoordinatesFromAX
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303 | ; Parameters:
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304 | ; Nothing
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305 | ; Returns:
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306 | ; Nothing
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307 | ; Corrupts registers:
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308 | ; AX, DI
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309 | ;--------------------------------------------------------------------
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310 | HotkeyBar_RestoreCursorCoordinatesFromAX:
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311 | JMP_DISPLAY_LIBRARY SetCursorCoordinatesFromAX
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312 |
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313 |
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314 | ;--------------------------------------------------------------------
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315 | ; HotkeyBar_StoreHotkeyToBootvarsForDriveNumberInDL
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316 | ; Parameters:
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317 | ; DS: RAMVARS segment
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318 | ; ES: BDA segment (zero)
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319 | ; DL: Drive Number
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320 | ; Returns:
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321 | ; Nothing
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322 | ; Corrupts registers:
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323 | ; AX, CX, DL, DI
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324 | ;--------------------------------------------------------------------
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325 | HotkeyBar_StoreHotkeyToBootvarsForDriveNumberInDL:
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326 | call DriveXlate_ConvertDriveNumberFromDLtoDriveLetter
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327 | ; Fall to StoreHotkeyToBootvarsForDriveLetterInDL
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328 |
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329 |
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330 | ;--------------------------------------------------------------------
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331 | ; StoreHotkeyToBootvarsForDriveLetterInDL
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332 | ; Parameters:
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333 | ; DS: RAMVARS segment
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334 | ; ES: BDA segment (zero)
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335 | ; DL: Drive Letter ('A'...)
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336 | ; Returns:
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337 | ; Nothing
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338 | ; Corrupts registers:
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339 | ; AX, CX, DI
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340 | ;--------------------------------------------------------------------
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341 | StoreHotkeyToBootvarsForDriveLetterInDL:
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342 | eMOVZX ax, dl
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343 | or al, 32 ; Upper case drive letter to lower case keystroke
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344 | jmp SHORT HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX
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345 |
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346 |
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347 | ;--------------------------------------------------------------------
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348 | ; ScanHotkeysFromKeyBufferAndStoreToBootvars
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349 | ; Parameters:
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350 | ; DS: RAMVARS segment
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351 | ; ES: BDA segment (zero)
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352 | ; Returns:
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353 | ; AL: Last scancode value
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354 | ; Corrupts registers:
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355 | ; AH, CX
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356 | ;--------------------------------------------------------------------
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357 | ScanHotkeysFromKeyBufferAndStoreToBootvars:
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358 | call Keyboard_GetKeystrokeToAX
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359 | jz SHORT NoHotkeyToProcess
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360 |
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361 | ; Prepare to read another key from buffer
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362 | ePUSH_T cx, ScanHotkeysFromKeyBufferAndStoreToBootvars
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363 | ; Fall to HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX
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364 |
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365 |
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366 | ;--------------------------------------------------------------------
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367 | ; HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX
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368 | ; Parameters:
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369 | ; AL: Hotkey ASCII code
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370 | ; AH: Hotkey Scancode
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371 | ; DS: RAMVARS segment
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372 | ; ES: BDA segment (zero)
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373 | ; Returns:
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374 | ; AL: Last scancode seen
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375 | ; CF: Set if valid hotkey in AL
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376 | ; Clear if scancode in AL is not for any hotkey
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377 | ; Corrupts registers:
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378 | ; AH, CX, DI
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379 | ;--------------------------------------------------------------------
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380 | HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX:
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381 | mov di, BOOTVARS.hotkeyVars+HOTKEYVARS.bScancode
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382 |
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383 | ; All scancodes are saved, even if it wasn't a drive letter,
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384 | ; which also covers our function key case. Invalid function keys
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385 | ; will not do anything (won't be printed, won't be accepted as input)
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386 | mov [es:di], ah
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387 |
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388 | ; Drive letter hotkeys remaining, allow 'a' to 'z'
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389 | call Char_IsLowerCaseLetterInAL
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390 | jnc SHORT .KeystrokeIsNotValidDriveLetter
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391 | and al, ~32 ; We want to print upper case letters
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392 |
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393 | ; Clear HD First flag to assume Floppy Drive hotkey
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394 | dec di
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395 | and BYTE [es:di], ~FLG_HOTKEY_HD_FIRST
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396 |
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397 | ; Determine if Floppy or Hard Drive hotkey
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398 | xchg cx, ax
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399 | call BootVars_GetLetterForFirstHardDriveToAX
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400 | cmp cl, al
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401 | jb SHORT .StoreDriveLetter ; Store Floppy Drive letter
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402 |
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403 | ; Store Hard Drive letter
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404 | or BYTE [es:di], FLG_HOTKEY_HD_FIRST
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405 |
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406 | .StoreDriveLetter:
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407 | sbb di, BYTE 1 ; Sub CF if Floppy Drive
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408 | xchg ax, cx
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409 | mov [es:di], al
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410 | stc ; Valid hotkey scancode returned in AL
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411 |
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412 | .KeystrokeIsNotValidDriveLetter:
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413 | NoHotkeyToProcess:
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414 | mov al, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bScancode]
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415 | ret
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416 |
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417 |
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418 | ;--------------------------------------------------------------------
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419 | ; HotkeyBar_GetBootDriveNumbersToDX
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420 | ; Parameters:
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421 | ; DS: RAMVARS segment
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422 | ; ES: BDA segment (zero)
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423 | ; Returns:
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424 | ; DX: Drives selected as boot device, DL is primary
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425 | ; Corrupts registers:
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426 | ; AX
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427 | ;--------------------------------------------------------------------
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428 | HotkeyBar_GetBootDriveNumbersToDX:
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429 | mov dx, [es:BOOTVARS.hotkeyVars+HOTKEYVARS.wFddAndHddLetters]
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430 | test BYTE [es:BOOTVARS.hotkeyVars+HOTKEYVARS.bFlags], FLG_HOTKEY_HD_FIRST
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431 | jnz .noflip
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432 | xchg dl, dh
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433 | .noflip:
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434 | call DriveXlate_ConvertDriveLetterInDLtoDriveNumber
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435 | xchg dl, dh
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436 | ; Fall to HotkeyBar_FallThroughTo_DriveXlate_ConvertDriveLetterInDLtoDriveNumber
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437 |
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438 | HotkeyBar_FallThroughTo_DriveXlate_ConvertDriveLetterInDLtoDriveNumber:
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439 |
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