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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 2288 $ |
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9 | |||
10 | struc VBE_VGAInfo { |
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11 | .VESASignature dd ? ; char |
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12 | .VESAVersion dw ? ; short |
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13 | .OemStringPtr dd ? ; char * |
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14 | .Capabilities dd ? ; ulong |
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15 | .VideoModePtr dd ? ; ulong |
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16 | .TotalMemory dw ? ; short |
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17 | ; VBE 2.0+ |
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18 | .OemSoftwareRev db ? ; short |
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19 | .OemVendorNamePtr dw ? ; char * |
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20 | .OemProductNamePtr dw ? ; char * |
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21 | .OemProductRevPtr dw ? ; char * |
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22 | .reserved rb 222 ; char |
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23 | .OemData rb 256 ; char |
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24 | } |
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25 | |||
26 | struc VBE_ModeInfo { |
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27 | .ModeAttributes dw ? ; short |
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28 | .WinAAttributes db ? ; char |
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29 | .WinBAttributes db ? ; char |
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30 | .WinGranularity dw ? ; short |
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31 | .WinSize dw ? ; short |
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32 | .WinASegment dw ? ; ushort |
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33 | .WinBSegment dw ? ; ushort |
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34 | .WinFuncPtr dd ? ; void * |
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35 | .BytesPerScanLine dw ? ; short |
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36 | .XRes dw ? ; short |
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37 | .YRes dw ? ; short |
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38 | .XCharSize db ? ; char |
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39 | .YCharSize db ? ; char |
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40 | .NumberOfPlanes db ? ; char |
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41 | .BitsPerPixel db ? ; char |
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42 | .NumberOfBanks db ? ; char |
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43 | .MemoryModel db ? ; char |
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44 | .BankSize db ? ; char |
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45 | .NumberOfImagePages db ? ; char |
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46 | .res1 db ? ; char |
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47 | .RedMaskSize db ? ; char |
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48 | .RedFieldPosition db ? ; char |
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49 | .GreenMaskSize db ? ; char |
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50 | .GreenFieldPosition db ? ; char |
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51 | .BlueMaskSize db ? ; char |
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52 | .BlueFieldPosition db ? ; char |
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53 | .RsvedMaskSize db ? ; char |
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54 | .RsvedFieldPosition db ? ; char |
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55 | .DirectColorModeInfo db ? ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE |
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56 | ; VBE 2.0+ |
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57 | .PhysBasePtr dd ? ; ulong |
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58 | .OffScreenMemOffset dd ? ; ulong |
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59 | .OffScreenMemSize dw ? ; short |
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60 | ; VBE 3.0+ |
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61 | .LinbytesPerScanLine dw ? ; short |
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62 | .BankNumberOfImagePages db ? ; char |
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63 | .LinNumberOfImagePages db ? ; char |
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64 | .LinRedMaskSize db ? ; char |
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65 | .LinRedFieldPosition db ? ; char |
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66 | .LingreenMaskSize db ? ; char |
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67 | .LinGreenFieldPosition db ? ; char |
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68 | .LinBlueMaskSize db ? ; char |
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69 | .LinBlueFieldPosition db ? ; char |
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70 | .LinRsvdMaskSize db ? ; char |
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71 | .LinRsvdFieldPosition db ? ; char |
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72 | .MaxPixelClock dd ? ; ulong |
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73 | .res2 rb 190 ; char |
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74 | } |
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75 | |||
76 | virtual at $A000 |
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77 | vi VBE_VGAInfo |
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78 | mi VBE_ModeInfo |
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79 | modes_table: |
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80 | end virtual |
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81 | cursor_pos dw 0 ;âðåìåííîå õðàíåíèå êóðñîðà. |
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82 | home_cursor dw 0 ;current shows rows a table |
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83 | end_cursor dw 0 ;end of position current shows rows a table |
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84 | scroll_start dw 0 ;start position of scroll bar |
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85 | scroll_end dw 0 ;end position of scroll bar |
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86 | long_v_table equ 9 ;long of visible video table |
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87 | size_of_step equ 10 |
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88 | scroll_area_size equ (long_v_table-2) |
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89 | int2str: |
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90 | dec bl |
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91 | jz @f |
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92 | xor edx, edx |
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93 | div ecx |
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94 | push edx |
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95 | call int2str |
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96 | pop eax |
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97 | @@: |
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98 | or al, 0x30 |
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99 | mov [ds:di], al |
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100 | inc di |
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101 | ret |
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102 | |||
103 | int2strnz: |
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104 | cmp eax, ecx |
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105 | jb @f |
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106 | xor edx, edx |
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107 | div ecx |
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108 | push edx |
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109 | call int2strnz |
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110 | pop eax |
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111 | @@: |
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112 | or al, 0x30 |
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113 | mov [es:di], al |
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114 | inc di |
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115 | ret |
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116 | |||
117 | ;------------------------------------------------------- |
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118 | ;Write message about incorrect v_mode and write message about jmp on swith v_mode |
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119 | v_mode_error: |
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120 | _setcursor 19,2 |
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121 | mov si, fatalsel |
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122 | call printplain |
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123 | _setcursor 20,2 |
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124 | mov si, pres_key |
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125 | call printplain |
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126 | xor eax, eax |
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127 | int 16h |
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128 | jmp cfgmanager.d |
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129 | ;------------------------------------------------------- |
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130 | ; |
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131 | |||
132 | |||
133 | |||
134 | ;------------------------------------------------------- |
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135 | print_vesa_info: |
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136 | _setcursor 5,2 |
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137 | |||
138 | mov [es:vi.VESASignature], 'VBE2' |
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139 | mov ax, 0x4F00 |
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140 | mov di, vi ;0xa000 |
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141 | int 0x10 |
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142 | or ah, ah |
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143 | jz @f |
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144 | mov [es:vi.VESASignature], 'VESA' |
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145 | mov ax, $4F00 |
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146 | mov di, vi |
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147 | int 0x10 |
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148 | or ah, ah |
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149 | jnz .exit |
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150 | @@: |
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151 | cmp [es:vi.VESASignature], 'VESA' |
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152 | jne .exit |
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153 | cmp [es:vi.VESAVersion], 0x0100 |
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154 | jb .exit |
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155 | jmp .vesaok2 |
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156 | |||
157 | .exit: |
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158 | mov si, novesa |
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159 | call printplain |
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160 | ret |
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161 | |||
162 | .vesaok2: |
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163 | mov ax, [es:vi.VESAVersion] |
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164 | add ax, '00' |
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165 | |||
166 | mov [s_vesa.ver], ah |
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167 | mov [s_vesa.ver+2], al |
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168 | mov si, s_vesa |
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169 | call printplain |
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170 | |||
171 | _setcursor 4,2 |
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172 | mov si, word[es:vi.OemStringPtr] |
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173 | mov di, si |
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174 | |||
175 | push ds |
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176 | mov ds, word[es:vi.OemStringPtr+2] |
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177 | call printplain |
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178 | pop ds |
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179 | |||
180 | ret |
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181 | ;----------------------------------------------------------------------------- |
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182 | |||
183 | calc_vmodes_table: |
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184 | pushad |
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185 | |||
186 | ; push 0 |
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187 | ; pop es |
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188 | |||
189 | lfs si, [es:vi.VideoModePtr] |
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190 | |||
191 | mov bx, modes_table |
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192 | ;save no vesa mode of work 320x200, EGA/CGA 256 梥⮢ and 640x480, VGA 16 梥⮢ |
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193 | mov word [es:bx], 640 |
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194 | mov word [es:bx+2], 480 |
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195 | mov word [es:bx+6], 0x13 |
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196 | |||
197 | mov word [es:bx+10], 640 |
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198 | mov word [es:bx+12], 480 |
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199 | mov word [es:bx+16], 0x12 |
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200 | add bx, 20 |
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201 | .next_mode: |
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202 | mov cx, word [fs:si]; mode number |
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203 | cmp cx, -1 |
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204 | je .modes_ok.2 |
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205 | |||
206 | mov ax, 0x4F01 |
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207 | mov di, mi |
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208 | int 0x10 |
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209 | |||
210 | or ah, ah |
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211 | jnz .modes_ok.2;vesa_info.exit |
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212 | |||
213 | test [es:mi.ModeAttributes], 00000001b ;videomode support ? |
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214 | jz @f |
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215 | test [es:mi.ModeAttributes], 00010000b ;picture ? |
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216 | jz @f |
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217 | test [es:mi.ModeAttributes], 10000000b ;LFB ? |
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218 | jz @f |
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219 | |||
220 | cmp [es:mi.BitsPerPixel], 24 ;It show only videomodes to have support 24 and 32 bpp |
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221 | jb @f |
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222 | |||
223 | ; cmp [es:mi.BitsPerPixel],16 |
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224 | ; jne .l0 |
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225 | ; cmp [es:mi.GreenMaskSize],5 |
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226 | ; jne .l0 |
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227 | ; mov [es:mi.BitsPerPixel],15 |
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228 | |||
229 | |||
230 | .l0: |
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231 | cmp [es:mi.XRes], 640 |
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232 | jb @f |
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233 | cmp [es:mi.YRes], 480 |
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234 | jb @f |
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235 | ; cmp [es:mi.BitsPerPixel],8 |
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236 | ; jb @f |
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237 | |||
238 | mov ax, [es:mi.XRes] |
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239 | mov [es:bx+0], ax ; +0[2] : resolution X |
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240 | mov ax, [es:mi.YRes] |
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241 | mov [es:bx+2], ax ; +2[2] : resolution Y |
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242 | mov ax, [es:mi.ModeAttributes] |
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243 | mov [es:bx+4], ax ; +4[2] : attributes |
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244 | |||
245 | cmp [s_vesa.ver], '2' |
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246 | jb .lp1 |
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247 | |||
248 | or cx, 0x4000 ; use LFB |
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249 | .lp1: |
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250 | mov [es:bx+6], cx ; +6 : mode number |
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251 | movzx ax, byte [es:mi.BitsPerPixel] |
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252 | mov word [es:bx+8], ax ; +8 : bits per pixel |
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253 | add bx, size_of_step ; size of record |
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254 | |||
255 | @@: |
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256 | add si, 2 |
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257 | jmp .next_mode |
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258 | |||
259 | .modes_ok.2: |
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260 | |||
261 | mov word[es:bx], -1 ;end video table |
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262 | mov word[end_cursor], bx ;save end cursor position |
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263 | ;;;;;;;;;;;;;;;;;; |
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264 | ;Sort array |
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265 | ; mov si,modes_table |
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266 | ;.new_mode: |
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267 | ; mov ax,word [es:si] |
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268 | ; cmp ax,-1 |
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269 | ; je .exxit |
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270 | ; add ax,word [es:si+2] |
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271 | ; add ax,word [es:si+8] |
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272 | ; mov bp,si |
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273 | ;.again: |
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274 | ; add bp,12 |
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275 | ; mov bx,word [es:bp] |
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276 | ; cmp bx,-1 |
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277 | ; je .exit |
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278 | ; add bx,word [es:bp+2] |
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279 | ; add bx,word [es:bp+8] |
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280 | ; |
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281 | ; cmp ax,bx |
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282 | ; ja .loops |
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283 | ; jmp .again |
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284 | ;.loops: |
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285 | ; push dword [es:si] |
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286 | ; push dword [es:si+4] |
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287 | ; push dword [es:si+8] |
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288 | ; push dword [es:bp] |
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289 | ; push dword [es:bp+4] |
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290 | ; push dword [es:bp+8] |
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291 | ; |
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292 | ; pop dword [es:si+8] |
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293 | ; pop dword [es:si+4] |
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294 | ; pop dword [es:si] |
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295 | ; pop dword [es:bp+8] |
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296 | ; pop dword [es:bp+4] |
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297 | ; pop dword [es:bp] |
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298 | ; jmp .new_mode |
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299 | ; |
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300 | ;.exit: add si,12 |
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301 | ; jmp .new_mode |
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302 | ;.exxit: |
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303 | popad |
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304 | ret |
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305 | |||
306 | ;----------------------------------------------------------------------------- |
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307 | |||
308 | draw_current_vmode: |
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309 | push 0 |
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310 | pop es |
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311 | |||
312 | mov si, word [cursor_pos] |
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313 | |||
314 | cmp word [es:si+6], 0x12 |
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315 | je .no_vesa_0x12 |
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316 | |||
317 | cmp word [es:si+6], 0x13 |
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318 | je .no_vesa_0x13 |
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319 | |||
320 | if defined extended_primary_loader |
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321 | mov di, config_file_variables |
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322 | else |
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323 | mov di, loader_block_error |
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324 | end if |
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325 | movzx eax, word[es:si+0] |
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326 | mov ecx, 10 |
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327 | call int2strnz |
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328 | mov byte[es:di], 'x' |
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329 | inc di |
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330 | movzx eax, word[es:si+2] |
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331 | call int2strnz |
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332 | mov byte[es:di], 'x' |
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333 | inc di |
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334 | movzx eax, word[es:si+8] |
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335 | call int2strnz |
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336 | mov dword[es:di], 0x00000d0a |
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337 | if defined extended_primary_loader |
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338 | mov si, config_file_variables |
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339 | else |
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340 | mov si, loader_block_error |
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341 | end if |
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342 | push ds |
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343 | push es |
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344 | pop ds |
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345 | call printplain |
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346 | pop ds |
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347 | ret |
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348 | .no_vesa_0x13: |
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349 | mov si, mode0 |
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350 | jmp .print |
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351 | .no_vesa_0x12: |
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352 | mov si, mode9 |
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353 | .print: |
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354 | call printplain |
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355 | ret |
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356 | ;----------------------------------------------------------------------------- |
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357 | check_first_parm: |
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358 | if defined extended_primary_loader |
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359 | mov cx, [number_vm] |
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360 | jcxz .novbemode |
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361 | mov si, modes_table |
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362 | .findvbemode: |
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363 | cmp [es:si+6], cx |
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364 | jnz @f |
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365 | cmp word [es:si+8], 32 |
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366 | je .ok_found_mode |
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367 | cmp word [es:si+8], 24 |
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368 | je .ok_found_mode |
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369 | @@: |
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370 | add si, size_of_step |
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371 | cmp word [es:si], -1 |
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372 | jnz .findvbemode |
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373 | .novbemode: |
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374 | mov ax, [x_save] |
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375 | test ax, ax |
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376 | jz .zerro |
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377 | mov bx, [y_save] |
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378 | mov si, modes_table |
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379 | call .loops |
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380 | test ax, ax |
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381 | jz .ok_found_mode |
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382 | else |
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383 | mov si, word [preboot_graph] |
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384 | test si, si |
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385 | jnz .no_zero ;if no zero |
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386 | end if |
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387 | .zerro: |
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388 | ; mov ax,modes_table |
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389 | ; mov word [cursor_pos],ax |
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390 | ; mov word [home_cursor],ax |
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391 | ; mov word [preboot_graph],ax |
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392 | ;SET default video of mode first probe will fined a move of work 1024x768@32 |
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393 | |||
394 | mov ax, 1024 |
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395 | mov bx, 768 |
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396 | mov si, modes_table |
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397 | call .loops |
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398 | test ax, ax |
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399 | jz .ok_found_mode |
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400 | mov ax, 800 |
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401 | mov bx, 600 |
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402 | mov si, modes_table |
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403 | call .loops |
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404 | test ax, ax |
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405 | jz .ok_found_mode |
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406 | mov ax, 640 |
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407 | mov bx, 480 |
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408 | mov si, modes_table |
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409 | call .loops |
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410 | test ax, ax |
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411 | jz .ok_found_mode |
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412 | |||
413 | mov si, modes_table |
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414 | if ~ defined extended_primary_loader |
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415 | jmp .ok_found_mode |
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416 | |||
417 | |||
418 | |||
419 | .no_zero: |
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420 | mov bp, word [number_vm] |
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421 | cmp bp, word [es:si+6] |
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422 | jz .ok_found_mode |
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423 | mov ax, word [x_save] |
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424 | mov bx, word [y_save] |
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425 | mov si, modes_table |
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426 | call .loops |
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427 | test ax, ax |
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428 | jz .ok_found_mode |
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429 | |||
430 | mov si, modes_table |
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431 | ; cmp ax,modes_table |
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432 | ; jb .zerro ;check on correct if bellow |
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433 | ; cmp ax,word [end_cursor] |
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434 | ; ja .zerro ;check on correct if anymore |
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435 | end if |
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436 | |||
437 | .ok_found_mode: |
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438 | mov word [home_cursor], si |
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439 | ; mov word [cursor_pos],si |
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440 | mov word [preboot_graph], si |
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441 | mov ax, si |
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442 | |||
443 | mov ecx, long_v_table |
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444 | |||
445 | .loop: |
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446 | add ax, size_of_step |
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447 | cmp ax, word [end_cursor] |
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448 | jae .next_step |
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449 | loop .loop |
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450 | .next_step: |
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451 | sub ax, size_of_step*long_v_table |
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452 | cmp ax, modes_table |
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453 | jae @f |
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454 | mov ax, modes_table |
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455 | @@: |
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456 | |||
457 | mov word [home_cursor], ax |
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458 | mov si, [preboot_graph] |
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459 | mov word [cursor_pos], si |
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460 | |||
461 | push word [es:si] |
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462 | pop word [x_save] |
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463 | push word [es:si+2] |
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464 | pop word [y_save] |
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465 | push word [es:si+6] |
||
466 | pop word [number_vm] |
||
467 | |||
468 | ret |
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469 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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470 | .loops: |
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471 | cmp ax, word [es:si] |
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472 | jne .next |
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473 | cmp bx, word [es:si+2] |
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474 | jne .next |
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475 | cmp word [es:si+8], 32 |
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476 | je .ok |
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477 | cmp word [es:si+8], 24 |
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478 | je .ok |
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479 | .next: |
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480 | add si, size_of_step |
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481 | cmp word [es:si], -1 |
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482 | je .exit |
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483 | jmp .loops |
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484 | .ok: |
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485 | xor ax, ax |
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486 | ret |
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487 | .exit: |
||
488 | or ax, -1 |
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489 | ret |
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490 | |||
491 | |||
492 | ;----------------------------------------------------------------------------- |
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493 | |||
494 | ;default_vmode: |
||
495 | |||
496 | ;----------------------------------------------------------------------------- |
||
497 | draw_vmodes_table: |
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498 | _setcursor 9, 2 |
||
499 | mov si, gr_mode |
||
500 | call printplain |
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501 | |||
502 | mov si, _st |
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503 | call printplain |
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504 | |||
505 | push word [cursor_pos] |
||
506 | pop ax |
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507 | push word [home_cursor] |
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508 | pop si |
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509 | mov cx, si |
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510 | |||
511 | cmp ax, si |
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512 | je .ok |
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513 | jb .low |
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514 | |||
515 | |||
516 | add cx, size_of_step*long_v_table |
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517 | |||
518 | cmp ax, cx |
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519 | jb .ok |
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520 | |||
521 | sub cx, size_of_step*long_v_table |
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522 | add cx, size_of_step |
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523 | cmp cx, word[end_cursor] |
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524 | jae .ok |
||
525 | add si, size_of_step |
||
526 | push si |
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527 | pop word [home_cursor] |
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528 | jmp .ok |
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529 | |||
530 | |||
531 | .low: |
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532 | sub cx, size_of_step |
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533 | cmp cx, modes_table |
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534 | jb .ok |
||
535 | push cx |
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536 | push cx |
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537 | pop word [home_cursor] |
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538 | pop si |
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539 | |||
540 | |||
541 | .ok: |
||
542 | ; calculate scroll position |
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543 | push si |
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544 | mov ax, [end_cursor] |
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545 | sub ax, modes_table |
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546 | mov bx, size_of_step |
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547 | cwd |
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548 | div bx |
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549 | mov si, ax ; si = size of list |
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550 | mov ax, [home_cursor] |
||
551 | sub ax, modes_table |
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552 | cwd |
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553 | div bx |
||
554 | mov di, ax |
||
555 | mov ax, scroll_area_size*long_v_table |
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556 | cwd |
||
557 | div si |
||
558 | test ax, ax |
||
559 | jnz @f |
||
560 | inc ax |
||
561 | @@: |
||
562 | cmp al, scroll_area_size |
||
563 | jb @f |
||
564 | mov al, scroll_area_size |
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565 | @@: |
||
566 | mov cx, ax |
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567 | ; cx = scroll height |
||
568 | ; calculate scroll pos |
||
569 | xor bx, bx ; initialize scroll pos |
||
570 | sub al, scroll_area_size+1 |
||
571 | neg al |
||
572 | sub si, long_v_table-1 |
||
573 | jbe @f |
||
574 | mul di |
||
575 | div si |
||
576 | mov bx, ax |
||
577 | @@: |
||
578 | inc bx |
||
579 | imul ax, bx, size_of_step |
||
580 | add ax, [home_cursor] |
||
581 | mov [scroll_start], ax |
||
582 | imul cx, size_of_step |
||
583 | add ax, cx |
||
584 | mov [scroll_end], ax |
||
585 | pop si |
||
586 | mov bp, long_v_table ;show rows |
||
587 | .@@_next_bit: |
||
588 | ;clear cursor |
||
589 | mov ax, ' ' |
||
590 | mov word[ds:_r1+21], ax |
||
591 | mov word[ds:_r1+50], ax |
||
592 | |||
593 | mov word[ds:_r2+21], ax |
||
594 | mov word[ds:_r2+45], ax |
||
595 | |||
596 | mov word[ds:_rs+21], ax |
||
597 | mov word[ds:_rs+46], ax |
||
598 | ; draw string |
||
599 | cmp word [es:si+6], 0x12 |
||
600 | je .show_0x12 |
||
601 | cmp word [es:si+6], 0x13 |
||
602 | je .show_0x13 |
||
603 | |||
604 | movzx eax, word[es:si] |
||
605 | cmp ax, -1 |
||
606 | je .@@_end |
||
607 | mov di, _rs+23 |
||
608 | mov ecx, 10 |
||
609 | mov bl, 4 |
||
610 | call int2str |
||
611 | movzx eax, word[es:si+2] |
||
612 | inc di |
||
613 | mov bl, 4 |
||
614 | call int2str |
||
615 | |||
616 | movzx eax, word[es:si+8] |
||
617 | inc di |
||
618 | mov bl, 2 |
||
619 | call int2str |
||
620 | |||
621 | cmp si, word [cursor_pos] |
||
622 | jne .next |
||
623 | ;draw cursor |
||
624 | mov word[ds:_rs+21], '>>' |
||
625 | mov word[ds:_rs+46], '<<' |
||
626 | |||
627 | |||
628 | |||
629 | .next: |
||
630 | push si |
||
631 | mov si, _rs |
||
632 | .@@_sh: |
||
633 | ; add to the string pseudographics for scrollbar |
||
634 | pop bx |
||
635 | push bx |
||
636 | mov byte [si+53], ' ' |
||
637 | cmp bx, [scroll_start] |
||
638 | jb @f |
||
639 | cmp bx, [scroll_end] |
||
640 | jae @f |
||
641 | mov byte [si+53], 0xDB ; filled bar |
||
642 | @@: |
||
643 | push bx |
||
644 | add bx, size_of_step |
||
645 | cmp bx, [end_cursor] |
||
646 | jnz @f |
||
647 | mov byte [si+53], 31 ; 'down arrow' symbol |
||
648 | @@: |
||
649 | sub bx, [home_cursor] |
||
650 | cmp bx, size_of_step*long_v_table |
||
651 | jnz @f |
||
652 | mov byte [si+53], 31 ; 'down arrow' symbol |
||
653 | @@: |
||
654 | pop bx |
||
655 | cmp bx, [home_cursor] |
||
656 | jnz @f |
||
657 | mov byte [si+53], 30 ; 'up arrow' symbol |
||
658 | @@: |
||
659 | call printplain |
||
660 | pop si |
||
661 | add si, size_of_step |
||
662 | |||
663 | dec bp |
||
664 | jnz .@@_next_bit |
||
665 | |||
666 | .@@_end: |
||
667 | mov si, _bt |
||
668 | call printplain |
||
669 | ret |
||
670 | .show_0x13: |
||
671 | push si |
||
672 | |||
673 | cmp si, word [cursor_pos] |
||
674 | jne @f |
||
675 | mov word[ds:_r1+21], '>>' |
||
676 | mov word[ds:_r1+50], '<<' |
||
677 | @@: |
||
678 | mov si, _r1 |
||
679 | jmp .@@_sh |
||
680 | .show_0x12: |
||
681 | push si |
||
682 | cmp si, word [cursor_pos] |
||
683 | jne @f |
||
684 | |||
685 | mov word[ds:_r2+21], '>>' |
||
686 | mov word[ds:_r2+45], '<<' |
||
687 | @@: |
||
688 | mov si, _r2 |
||
689 | jmp .@@_sh |
||
690 | |||
691 | ;----------------------------------------------------------------------------- |
||
692 | ;Clear arrea of current video page (0xb800) |
||
693 | clear_vmodes_table: |
||
694 | pusha |
||
695 | ; draw frames |
||
696 | push es |
||
697 | push 0xb800 |
||
698 | pop es |
||
699 | mov di, 1444 |
||
700 | xor ax, ax |
||
701 | mov ah, 1*16+15 |
||
702 | mov cx, 70 |
||
703 | mov bp, 12 |
||
704 | .loop_start: |
||
705 | rep stosw |
||
706 | mov cx, 70 |
||
707 | add di, 20 |
||
708 | dec bp |
||
709 | jns .loop_start |
||
710 | pop es |
||
711 | popa |
||
712 | ret |
||
713 | |||
714 | ;----------------------------------------------------------------------------- |
||
715 | |||
716 | set_vmode: |
||
717 | push 0 ;0;x1000 |
||
718 | pop es |
||
719 | |||
720 | mov si, word [preboot_graph] ;[preboot_graph] |
||
721 | mov cx, word [es:si+6] ; number of mode |
||
722 | |||
723 | |||
724 | mov ax, word [es:si+0] ; resolution X |
||
725 | mov bx, word [es:si+2] ; resolution Y |
||
726 | |||
727 | |||
728 | mov word [es:0x900A], ax ; resolution X |
||
729 | mov word [es:0x900C], bx ; resolution Y |
||
730 | mov word [es:0x9008], cx ; number of mode |
||
731 | |||
732 | cmp cx, 0x12 |
||
733 | je .mode0x12_0x13 |
||
734 | cmp cx, 0x13 |
||
735 | je .mode0x12_0x13 |
||
736 | |||
737 | |||
738 | cmp byte [s_vesa.ver], '2' |
||
739 | jb .vesa12 |
||
740 | |||
741 | ; VESA 2 and Vesa 3 |
||
742 | |||
743 | mov ax, 0x4f01 |
||
744 | and cx, 0xfff |
||
745 | mov di, mi;0xa000 |
||
746 | int 0x10 |
||
747 | ; LFB |
||
748 | mov eax, [es:mi.PhysBasePtr];di+0x28] |
||
749 | mov [es:0x9018], eax |
||
750 | ; ---- vbe voodoo |
||
751 | BytesPerLine equ 0x10 |
||
752 | mov ax, [es:di+BytesPerLine] |
||
753 | mov [es:0x9001], ax |
||
754 | ; BPP |
||
755 | cmp [es:mi.BitsPerPixel], 16 |
||
756 | jne .l0 |
||
757 | cmp [es:mi.GreenMaskSize], 5 |
||
758 | jne .l0 |
||
759 | mov [es:mi.BitsPerPixel], 15 |
||
760 | .l0: |
||
761 | mov al, byte [es:di+0x19] |
||
762 | mov [es:0x9000], al |
||
763 | jmp .exit |
||
764 | |||
765 | .mode0x12_0x13: |
||
766 | mov byte [es:0x9000], 32 |
||
767 | or dword [es:0x9018], 0xFFFFFFFF; 0x800000 |
||
768 | |||
769 | |||
770 | ; VESA 1.2 PM BANK SWITCH ADDRESS |
||
771 | |||
772 | .vesa12: |
||
773 | |||
774 | |||
775 | mov ax, 0x4f0A |
||
776 | xor bx, bx |
||
777 | int 0x10 |
||
778 | xor eax, eax |
||
779 | xor ebx, ebx |
||
780 | mov ax, es |
||
781 | shl eax, 4 |
||
782 | mov bx, di |
||
783 | add eax, ebx |
||
784 | movzx ebx, word[es:di] |
||
785 | add eax, ebx |
||
786 | push 0x0000 |
||
787 | pop es |
||
788 | mov [es:0x9014], eax |
||
789 | .exit: |
||
790 | ret |
||
791 | |||
792 | |||
793 | ; mov dword[es:0x9018],0x000A0000 |
||
794 | ; ret |
||
795 | |||
796 | ;============================================================================= |
||
797 | ;============================================================================= |
||
798 | ;=============================================================================' |
||
799 |