1 | ; File name : Menupage.asm |
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2 | ; Project name : XTIDE Universal BIOS Configurator v2 |
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3 | ; Created date : 5.10.2010 |
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4 | ; Last update : 1.11.2010 |
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5 | ; Author : Tomi Tilli |
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6 | ; Description : Functions for accessing MENUPAGE structs. |
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7 | |
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8 | ; Section containing code |
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9 | SECTION .text |
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10 | |
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11 | ;-------------------------------------------------------------------- |
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12 | ; Menupage_ChangeToNewMenupageInDSSI |
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13 | ; Parameters: |
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14 | ; DS:SI: Ptr to new MENUPAGE |
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15 | ; SS:BP: Menu handle |
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16 | ; Returns: |
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17 | ; Nothing |
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18 | ; Corrupts registers: |
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19 | ; AX, DI |
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20 | ;-------------------------------------------------------------------- |
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21 | ALIGN JUMP_ALIGN |
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22 | Menupage_ChangeToNewMenupageInDSSI: |
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23 | mov di, si |
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24 | call Menupage_SetActiveMenupageFromDSDI |
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25 | call Menupage_GetVisibleMenuitemsToAXfromDSDI |
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26 | CALL_MENU_LIBRARY SetTotalItemsFromAX |
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27 | xor ax, ax |
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28 | CALL_MENU_LIBRARY HighlightItemFromAX |
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29 | CALL_MENU_LIBRARY RefreshWindow |
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30 | ret |
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31 | |
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32 | |
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33 | ;-------------------------------------------------------------------- |
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34 | ; Menupage_SetActiveMenupageFromDSDI |
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35 | ; Parameters: |
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36 | ; DS:DI: Ptr to MENUPAGE to set active |
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37 | ; SS:BP: Menu handle |
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38 | ; Returns: |
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39 | ; Nothing |
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40 | ; Corrupts registers: |
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41 | ; AX, DI |
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42 | ;-------------------------------------------------------------------- |
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43 | ALIGN JUMP_ALIGN |
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44 | Menupage_SetActiveMenupageFromDSDI: |
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45 | mov [g_cfgVars+CFGVARS.pMenupage], di |
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46 | ret |
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47 | |
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48 | |
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49 | ;-------------------------------------------------------------------- |
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50 | ; Menupage_GetActiveMenupageToDSDI: |
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51 | ; Parameters: |
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52 | ; SS:BP: Menu handle |
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53 | ; Returns: |
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54 | ; DS:DI: Ptr to MENUPAGE |
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55 | ; Corrupts registers: |
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56 | ; Nothing |
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57 | ;-------------------------------------------------------------------- |
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58 | ALIGN JUMP_ALIGN |
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59 | Menupage_GetActiveMenupageToDSDI: |
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60 | push cs |
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61 | pop ds |
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62 | mov di, [g_cfgVars+CFGVARS.pMenupage] |
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63 | ret |
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64 | |
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65 | |
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66 | ;-------------------------------------------------------------------- |
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67 | ; Menupage_GetVisibleMenuitemsToAXfromDSDI |
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68 | ; Parameters: |
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69 | ; DS:DI: Ptr to MENUPAGE |
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70 | ; Returns: |
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71 | ; AX: Number of visible MENUITEMs in MENUPAGE |
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72 | ; Corrupts registers: |
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73 | ; BX, CX |
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74 | ;-------------------------------------------------------------------- |
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75 | ALIGN JUMP_ALIGN |
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76 | Menupage_GetVisibleMenuitemsToAXfromDSDI: |
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77 | xor ax, ax |
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78 | mov cx, [di+MENUPAGE.wMenuitems] |
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79 | lea bx, [di+MENUPAGE.rgMenuitem] |
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80 | |
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81 | ALIGN JUMP_ALIGN |
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82 | .CheckVisibilityFromNextMenuitem: |
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83 | test BYTE [bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE |
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84 | jz SHORT .PrepareToLoop |
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85 | inc ax |
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86 | .PrepareToLoop: |
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87 | add bx, BYTE MENUITEM_size |
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88 | loop .CheckVisibilityFromNextMenuitem |
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89 | ret |
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90 | |
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91 | |
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92 | ;-------------------------------------------------------------------- |
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93 | ; Menupage_GetCXthVisibleMenuitemToDSSIfromDSDI |
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94 | ; Parameters: |
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95 | ; CX: nth visible MENUITEM to find |
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96 | ; DS:DI: Ptr to MENUPAGE |
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97 | ; Returns: |
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98 | ; DS:SI: Ptr to CXth visible MENUITEM |
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99 | ; CF: Set if MENUITEM found |
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100 | ; Cleared if MENUITEM not found |
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101 | ; Corrupts registers: |
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102 | ; AX, CX |
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103 | ;-------------------------------------------------------------------- |
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104 | ALIGN JUMP_ALIGN |
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105 | Menupage_GetCXthVisibleMenuitemToDSSIfromDSDI: |
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106 | mov ax, [di+MENUPAGE.wMenuitems] |
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107 | cmp cx, ax |
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108 | jae SHORT .MenuitemNotFound |
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109 | xchg ax, cx |
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110 | inc ax |
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111 | lea si, [di+MENUPAGE.rgMenuitem] |
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112 | ALIGN JUMP_ALIGN |
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113 | .CheckNextMenuitem: |
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114 | test BYTE [si+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE |
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115 | jz SHORT .PrepareToLoop |
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116 | dec ax |
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117 | jz SHORT .MenuitemFound |
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118 | .PrepareToLoop: |
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119 | add si, BYTE MENUITEM_size |
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120 | loop .CheckNextMenuitem |
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121 | .MenuitemNotFound: |
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122 | clc |
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123 | ret |
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124 | ALIGN JUMP_ALIGN |
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125 | .MenuitemFound: |
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126 | stc |
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127 | ret |
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