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, 2011-2012 by XTIDE Universal BIOS Team. |
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7 | ; |
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8 | ; This program is free software; you can redistribute it and/or modify |
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9 | ; it under the terms of the GNU General Public License as published by |
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10 | ; the Free Software Foundation; either version 2 of the License, or |
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11 | ; (at your option) any later version. |
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12 | ; |
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13 | ; This program is distributed in the hope that it will be useful, |
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14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | ; GNU General Public License for more details. |
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17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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18 | ; |
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19 | |
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20 | ; Section containing 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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211 | ; ES: BDA segment (zero) |
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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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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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239 | |
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240 | GetNonSelectedHotkeyDescriptionAttributeToDX: |
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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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250 | ret |
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251 | |
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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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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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329 | xor al, 32 ; Upper case drive letter to lower case keystroke |
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330 | jmp SHORT HotkeyBar_StoreHotkeyToBootvarsIfValidKeystrokeInAX |
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331 | |
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332 | |
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333 | ;-------------------------------------------------------------------- |
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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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378 | xor al, 32 ; We want to print upper case letters |
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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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394 | adc di, BYTE 1 ; Add CF if Floppy Drive |
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395 | xchg ax, cx |
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396 | mov [es:di], al ; AH = zero to clear function hotkey |
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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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428 | ; Fall to HotkeyBar_ConvertDriveLetterInDLtoDriveNumber |
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429 | |
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430 | |
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431 | ;-------------------------------------------------------------------- |
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432 | ; HotkeyBar_ConvertDriveLetterInDLtoDriveNumber |
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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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441 | HotkeyBar_ConvertDriveLetterInDLtoDriveNumber: |
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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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