1 | ; Project name : XTIDE Universal BIOS Configurator v2 |
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2 | ; Description : Functions for accessing MENUPAGE structs. |
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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 | ; Menupage_ChangeToNewMenupageInDSSI |
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25 | ; Parameters: |
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26 | ; DS:SI: Ptr to new MENUPAGE |
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27 | ; SS:BP: Menu handle |
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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, DI |
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32 | ;-------------------------------------------------------------------- |
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33 | ALIGN JUMP_ALIGN |
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34 | Menupage_ChangeToNewMenupageInDSSI: |
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35 | mov di, si |
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36 | call Menupage_SetActiveMenupageFromDSDI |
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37 | call Menupage_GetVisibleMenuitemsToAXfromDSDI |
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38 | CALL_MENU_LIBRARY SetTotalItemsFromAX |
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39 | xor ax, ax |
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40 | CALL_MENU_LIBRARY HighlightItemFromAX |
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41 | CALL_MENU_LIBRARY RefreshWindow |
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42 | ret |
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43 | |
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44 | |
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45 | ;-------------------------------------------------------------------- |
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46 | ; SetActiveMenupageFromDSDI |
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47 | ; Parameters: |
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48 | ; DS:DI: Ptr to MENUPAGE to set active |
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49 | ; SS:BP: Menu handle |
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50 | ; Returns: |
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51 | ; Nothing |
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52 | ; Corrupts registers: |
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53 | ; Nothing |
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54 | ;-------------------------------------------------------------------- |
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55 | ALIGN JUMP_ALIGN |
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56 | Menupage_SetActiveMenupageFromDSDI: |
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57 | mov [g_cfgVars+CFGVARS.pMenupage], di |
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58 | ret |
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59 | |
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60 | |
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61 | ;-------------------------------------------------------------------- |
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62 | ; Menupage_GetActiveMenupageToDSDI: |
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63 | ; Parameters: |
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64 | ; SS:BP: Menu handle |
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65 | ; Returns: |
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66 | ; DS:DI: Ptr to MENUPAGE |
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67 | ; Corrupts registers: |
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68 | ; Nothing |
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69 | ;-------------------------------------------------------------------- |
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70 | ALIGN JUMP_ALIGN |
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71 | Menupage_GetActiveMenupageToDSDI: |
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72 | push cs |
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73 | pop ds |
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74 | mov di, [g_cfgVars+CFGVARS.pMenupage] |
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75 | ret |
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76 | |
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77 | |
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78 | ;-------------------------------------------------------------------- |
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79 | ; Menupage_GetVisibleMenuitemsToAXfromDSDI |
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80 | ; Parameters: |
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81 | ; DS:DI: Ptr to MENUPAGE |
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82 | ; Returns: |
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83 | ; AX: Number of visible MENUITEMs in MENUPAGE |
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84 | ; Corrupts registers: |
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85 | ; BX, CX |
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86 | ;-------------------------------------------------------------------- |
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87 | ALIGN JUMP_ALIGN |
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88 | Menupage_GetVisibleMenuitemsToAXfromDSDI: |
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89 | xor ax, ax |
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90 | mov cx, [di+MENUPAGE.wMenuitems] |
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91 | lea bx, [di+MENUPAGE.rgMenuitem] |
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92 | |
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93 | ALIGN JUMP_ALIGN |
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94 | .CheckVisibilityFromNextMenuitem: |
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95 | test BYTE [bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE |
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96 | jz SHORT .PrepareToLoop |
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97 | inc ax |
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98 | .PrepareToLoop: |
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99 | add bx, BYTE MENUITEM_size |
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100 | loop .CheckVisibilityFromNextMenuitem |
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101 | ret |
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102 | |
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103 | |
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104 | ;-------------------------------------------------------------------- |
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105 | ; Menupage_GetCXthVisibleMenuitemToDSSIfromDSDI |
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106 | ; Parameters: |
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107 | ; CX: nth visible MENUITEM to find |
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108 | ; DS:DI: Ptr to MENUPAGE |
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109 | ; Returns: |
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110 | ; DS:SI: Ptr to CXth visible MENUITEM |
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111 | ; CF: Set if MENUITEM found |
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112 | ; Cleared if MENUITEM not found |
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113 | ; Corrupts registers: |
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114 | ; AX, CX |
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115 | ;-------------------------------------------------------------------- |
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116 | ALIGN JUMP_ALIGN |
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117 | Menupage_GetCXthVisibleMenuitemToDSSIfromDSDI: |
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118 | mov ax, [di+MENUPAGE.wMenuitems] |
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119 | cmp cx, ax |
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120 | jae SHORT .MenuitemNotFound |
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121 | xchg ax, cx |
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122 | inc ax |
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123 | lea si, [di+MENUPAGE.rgMenuitem] |
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124 | ALIGN JUMP_ALIGN |
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125 | .CheckNextMenuitem: |
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126 | test BYTE [si+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE |
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127 | jz SHORT .PrepareToLoop |
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128 | dec ax |
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129 | jz SHORT .MenuitemFound |
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130 | .PrepareToLoop: |
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131 | add si, BYTE MENUITEM_size |
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132 | loop .CheckNextMenuitem |
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133 | .MenuitemNotFound: |
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134 | clc |
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135 | ret |
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136 | ALIGN JUMP_ALIGN |
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137 | .MenuitemFound: |
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138 | stc |
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139 | ret |
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