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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; VESA12.INC ;; |
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4 | ;; ;; |
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5 | ;; Vesa 1.2 functions for MenuetOS ;; |
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6 | ;; ;; |
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7 | ;; Copyright 2002 Ville Turjanmaa ;; |
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8 | ;; ;; |
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9 | ;; quickcode@mail.ru - bankswitch for S3 cards ;; |
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10 | ;; ;; |
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11 | ;; See file COPYING for details ;; |
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12 | ;; ;; |
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13 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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14 | |||
15 | |||
16 | ; A complete video driver should include the following types of function |
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17 | ; |
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18 | ; Putpixel |
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19 | ; Getpixel |
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20 | ; |
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21 | ; Drawimage |
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22 | ; Drawbar |
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23 | ; |
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24 | ; Drawbackground |
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25 | ; |
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26 | ; |
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27 | ; Modifying the set_bank -function is mostly enough |
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28 | ; for different Vesa 1.2 setups. |
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29 | |||
5 | halyavin | 30 | ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
31 | ; set_bank for Trident videocards, work on Trident 9440 |
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32 | ; modified by Mario79 |
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33 | ;set_bank: |
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34 | ;cli |
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35 | ;cmp al,[0xfff2] |
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36 | ;je retsb |
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37 | ;mov [0xfff2],al |
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38 | ;push dx |
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39 | ;mov dx,3D8h |
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40 | ;out dx,al |
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41 | ;pop dx |
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42 | ;retsb: |
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43 | ;sti |
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44 | ;ret |
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1 | ha | 45 | |
5 | halyavin | 46 | |
47 | ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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48 | ; set_bank for S3 videocards, work on S3 ViRGE PCI (325) |
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49 | ; modified by kmeaw |
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1 | ha | 50 | set_bank: |
102 | poddubny | 51 | pushfd |
1 | ha | 52 | cli |
53 | cmp al,[0xfff2] |
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54 | je retsb |
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55 | mov [0xfff2],al |
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56 | push ax |
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57 | push dx |
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58 | push cx |
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59 | mov cl, al |
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60 | mov dx, 0x3D4 |
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61 | mov al, 0x38 |
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62 | out dx, al ;CR38 Register Lock 1 ;Note: Traditionally 48h is used to |
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63 | ;unlock and 00h to lock |
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64 | inc dx |
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65 | mov al, 0x48 |
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66 | out dx, al ;3d5 -? |
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67 | dec dx |
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68 | mov al, 0x31 |
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69 | out dx, al ;CR31 Memory Configuration Register |
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70 | ;0 Enable Base Address Offset (CPUA BASE). Enables bank operation if set, ;disables if clear. |
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71 | ;4-5 Bit 16-17 of the Display Start Address. For the 801/5,928 see index 51h, |
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72 | ;for the 864/964 see index 69h. |
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73 | |||
74 | inc dx |
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75 | in al, dx |
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76 | dec dx |
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77 | mov ah, al |
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78 | mov al, 0x31 |
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79 | out dx, ax |
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80 | mov al, ah |
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81 | or al, 9 |
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82 | inc dx |
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83 | out dx, al |
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84 | dec dx |
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85 | mov al, 0x35 |
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86 | out dx, al ;CR35 CRT Register Lock |
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87 | inc dx |
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88 | in al, dx |
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89 | dec dx |
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90 | and al, 0xF0 |
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91 | mov ch, cl |
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92 | and ch, 0x0F |
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93 | or ch, al |
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94 | mov al, 0x35 |
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95 | out dx, al |
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96 | inc dx |
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97 | mov al, ch |
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98 | out dx, ax |
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99 | dec dx |
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100 | mov al, 0x51 ;Extended System Control 2 Register |
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101 | out dx, al |
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102 | inc dx |
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103 | in al, dx |
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104 | dec dx |
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105 | and al, 0xF3 |
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106 | shr cl, 2 |
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107 | and cl, 0x0C |
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108 | or cl, al |
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109 | mov al, 0x51 |
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110 | out dx, al |
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111 | inc dx |
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112 | mov al, cl |
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113 | out dx, al |
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114 | dec dx |
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115 | mov al, 0x38 |
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116 | out dx, al |
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117 | inc dx |
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118 | xor al, al |
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119 | out dx, al |
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120 | dec dx |
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121 | pop cx |
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122 | pop dx |
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123 | pop ax |
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124 | retsb: |
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102 | poddubny | 125 | popfd |
1 | ha | 126 | ret |
127 | |||
128 | ;Set bank function for Intel 810/815 chipsets |
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129 | ; *****Modified by Protopopius, Russia.***** |
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130 | ; ********* http://menuetos.hut.ru ************** |
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131 | ; ************************************************ |
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132 | ; |
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133 | ;set_bank: |
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134 | ;cli |
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135 | ;cmp al,[0xfff2] |
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136 | ;je retsb |
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137 | ;mov [0xfff2],al |
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138 | ;push ax |
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139 | ;push dx |
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140 | ;mov dx,3CEh |
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141 | ;mov ah,al ; Save value for later use |
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142 | ;mov al,10h ; Index GR10 (Address Mapping) |
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143 | ;out dx,al ; Select GR10 |
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144 | ;inc dl |
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145 | ;mov al,3 ; Set bits 0 and 1 (Enable linear page mapping) |
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146 | ;out dx,al ; Write value |
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147 | ;dec dl |
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148 | ;mov al,11h ; Index GR11 (Page Selector) |
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149 | ;out dx,al ; Select GR11 |
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150 | ;inc dl |
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151 | ;mov al,ah ; Write address |
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152 | ;out dx,al ; Write the value |
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153 | ;pop dx |
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154 | ;pop ax |
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155 | ;retsb: |
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156 | ;sti |
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157 | ;ret |
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158 | |||
159 | ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!} |
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160 | |||
161 | ;set_bank: |
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162 | ; cli |
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163 | ; cmp al,[0xfff2] |
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164 | ; je retsb |
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165 | ; mov [0xfff2],al |
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166 | ; push ax |
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167 | ; push dx |
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168 | ; mov ah,al |
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169 | ; mov dx,0x03D4 |
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170 | ; mov al,0x39 |
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171 | ; out dx,al |
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172 | ; inc dl |
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173 | ; mov al,0xA5 |
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174 | ; out dx,al |
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175 | ; dec dl |
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176 | ; mov al,6Ah |
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177 | ; out dx,al |
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178 | ; inc dl |
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179 | ; mov al,ah |
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180 | ; out dx,al |
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181 | ; dec dl |
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182 | ; mov al,0x39 |
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183 | ; out dx,al |
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184 | ; inc dl |
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185 | ; mov al,0x5A |
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186 | ; out dx,al |
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187 | ; dec dl |
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188 | ; pop dx |
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189 | ; pop ax |
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190 | ; |
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191 | ; retsb: |
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192 | ; ret |
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193 | |||
194 | |||
195 | vesa12_drawbackground: |
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196 | |||
197 | call [disable_mouse] |
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198 | |||
199 | push eax |
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200 | push ebx |
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201 | push ecx |
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202 | push edx |
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203 | |||
204 | xor edx,edx |
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205 | mov eax,dword[WinMapAddress-8] |
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206 | mov ebx,dword[WinMapAddress-4] |
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207 | mul ebx |
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208 | mov ebx,3 |
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209 | mul ebx |
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210 | mov [imax],eax |
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211 | mov eax,[draw_data+32+0] |
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212 | mov ebx,[draw_data+32+4] |
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213 | mov edi,0 ;no force |
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214 | |||
215 | v12dp3: |
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216 | |||
217 | push eax |
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218 | push ebx |
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219 | mov esi,0x300000 |
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220 | |||
221 | cmp [WinMapAddress-12],dword 1 ; tiled background |
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222 | jne no_vesa12_tiled_bgr |
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223 | |||
224 | push edx |
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225 | |||
226 | xor edx,edx |
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227 | mov ecx,[WinMapAddress-8] |
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228 | div ecx |
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229 | mov eax,edx |
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230 | |||
231 | push eax |
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232 | mov eax,ebx |
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233 | xor edx,edx |
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234 | mov ecx,[WinMapAddress-4] |
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235 | div ecx |
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236 | mov ebx,edx |
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237 | pop eax |
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238 | |||
239 | pop edx |
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240 | |||
241 | no_vesa12_tiled_bgr: |
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242 | |||
243 | cmp [WinMapAddress-12],dword 2 ; stretched background |
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244 | jne no_vesa12_stretched_bgr |
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245 | |||
246 | push edx |
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247 | |||
248 | imul eax,dword [WinMapAddress-8] |
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249 | xor edx,edx |
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250 | mov ecx,[0xfe00] |
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251 | inc ecx |
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252 | div ecx |
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253 | |||
254 | push eax |
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255 | mov eax,ebx |
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256 | imul eax,dword [WinMapAddress-4] |
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257 | xor edx,edx |
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258 | mov ecx,[0xfe04] |
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259 | inc ecx |
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260 | div ecx |
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261 | mov ebx,eax |
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262 | pop eax |
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263 | |||
264 | pop edx |
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265 | |||
266 | no_vesa12_stretched_bgr: |
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267 | |||
268 | |||
269 | push eax |
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270 | mov eax,ebx |
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271 | xor edx,edx |
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272 | mov ebx,[WinMapAddress-8] |
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273 | add ebx,[WinMapAddress-8] |
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274 | add ebx,[WinMapAddress-8] |
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275 | mul ebx |
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276 | mov esi,eax |
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277 | pop eax |
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278 | add esi,eax |
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279 | add esi,eax |
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280 | add esi,eax |
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281 | add esi,0x300000 |
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282 | pop ebx |
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283 | pop eax |
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284 | |||
285 | v12di4: |
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286 | |||
287 | mov ecx,[esi] |
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288 | pusha |
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289 | mov esi,eax |
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290 | mov edi,ebx |
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291 | mov eax,[0xfe00] |
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292 | add eax,1 |
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293 | mul ebx |
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294 | add eax,esi |
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295 | add eax,WinMapAddress |
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296 | cmp [eax],byte 1 |
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297 | jnz v12nbgp |
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298 | mov eax,[0xfe08] |
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299 | mov ebx,edi |
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300 | mul ebx |
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301 | add eax,esi |
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302 | add eax,esi |
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303 | add eax,esi |
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304 | cmp [0xFBF1],byte 24 |
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305 | jz v12bgl3 |
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306 | add eax,esi |
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307 | |||
308 | v12bgl3: |
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309 | |||
310 | push ebx |
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311 | push eax |
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312 | |||
313 | sub eax,[0xfe80] |
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314 | |||
315 | shr eax,16 |
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316 | call set_bank |
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317 | pop eax |
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318 | and eax,65535 |
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319 | add eax,0xa0000 |
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320 | pop ebx |
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321 | |||
322 | mov [eax],cx |
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323 | add eax,2 |
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324 | shr ecx,16 |
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325 | mov [eax],cl |
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326 | sti |
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327 | |||
328 | v12nbgp: |
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329 | |||
330 | popa |
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331 | add esi,3 |
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332 | inc eax |
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333 | cmp eax,[draw_data+32+8] |
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334 | jg v12nodp31 |
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335 | jmp v12dp3 |
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336 | |||
337 | v12nodp31: |
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338 | |||
339 | mov eax,[draw_data+32+0] |
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340 | inc ebx |
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341 | cmp ebx,[draw_data+32+12] |
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342 | jg v12dp4 |
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343 | jmp v12dp3 |
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344 | |||
345 | v12dp4: |
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346 | |||
347 | pop edx |
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348 | pop ecx |
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349 | pop ebx |
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350 | pop eax |
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351 | ret |
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352 | |||
353 | |||
354 | vesa12_drawbar: |
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355 | |||
356 | call [disable_mouse] |
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357 | |||
358 | ;; mov [novesachecksum],dword 0 |
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359 | sub edx,ebx |
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360 | sub ecx,eax |
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361 | push esi |
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362 | push edi |
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363 | push eax |
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364 | push ebx |
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365 | push ecx |
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366 | push edx |
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367 | mov ecx,[0x3010] |
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368 | add eax,[ecx-twdw] |
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369 | add ebx,[ecx-twdw+4] |
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370 | push eax |
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371 | mov eax,ebx ; y |
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372 | mov ebx,[0xfe08] |
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373 | mul ebx |
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374 | pop ecx |
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375 | add eax,ecx ; x |
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376 | add eax,ecx |
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377 | add eax,ecx |
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378 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? - x start |
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379 | jz dbpi2412 |
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380 | add eax,ecx |
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381 | |||
382 | dbpi2412: |
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383 | |||
384 | add eax,[0xfe80] |
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385 | mov edi,eax |
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386 | |||
387 | ; x size |
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388 | |||
389 | mov eax,[esp+4] ; [esp+6] |
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390 | mov ecx,eax |
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391 | add ecx,eax |
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392 | add ecx,eax |
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393 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? - x size |
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394 | jz dbpi24312 |
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395 | add ecx,eax |
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396 | |||
397 | dbpi24312: |
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398 | |||
399 | mov ebx,[esp+0] |
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400 | |||
401 | ; check limits ? |
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402 | |||
403 | push eax |
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404 | push ecx |
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405 | mov eax,[0x3010] |
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406 | mov ecx,[eax+draw_data-0x3000+0] |
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407 | cmp ecx,0 |
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408 | jnz dbcblimitlset12 |
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409 | mov ecx,[eax+draw_data-0x3000+4] |
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410 | cmp ecx,0 |
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411 | jnz dbcblimitlset12 |
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412 | mov ecx,[eax+draw_data-0x3000+8] |
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413 | cmp ecx,[0xfe00] |
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414 | jnz dbcblimitlset12 |
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415 | mov ecx,[eax+draw_data-0x3000+12] |
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416 | cmp ecx,[0xfe04] |
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417 | jnz dbcblimitlset12 |
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418 | pop ecx |
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419 | pop eax |
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420 | push dword 0 |
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421 | jmp dbcblimitlno12 |
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422 | |||
423 | dbcblimitlset12: |
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424 | |||
425 | pop ecx |
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426 | pop eax |
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427 | push dword 1 |
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428 | |||
429 | dbcblimitlno12: |
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430 | |||
431 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? |
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432 | jz dbpi24bit12 |
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433 | jmp dbpi32bit12 |
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434 | |||
435 | |||
436 | ; DRAWBAR 24 BBP |
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437 | |||
438 | |||
439 | dbpi24bit12: |
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440 | |||
441 | push eax |
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442 | push ebx |
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443 | push edx |
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444 | mov eax,ecx |
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445 | mov ebx,3 |
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446 | div ebx |
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447 | mov ecx,eax |
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448 | pop edx |
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449 | pop ebx |
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450 | pop eax |
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451 | cld |
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452 | |||
453 | dbnewpi12: |
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454 | |||
455 | push ebx |
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456 | push edi |
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457 | push ecx |
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458 | |||
459 | xor edx,edx |
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460 | mov eax,edi |
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461 | sub eax,[0xfe80] |
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462 | mov ebx,3 |
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463 | div ebx |
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464 | add eax,WinMapAddress |
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102 | poddubny | 465 | mov ebx,[0x3000] |
1 | ha | 466 | cld |
467 | |||
468 | dbnp2412: |
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469 | |||
470 | mov dl,[eax] |
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471 | push eax |
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472 | push ecx |
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473 | cmp dl,bl |
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474 | jnz dbimp24no12 |
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475 | cmp [esp+5*4],dword 0 |
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476 | jz dbimp24yes12 |
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477 | ; call dbcplimit |
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478 | ; jnz dbimp24no12 |
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479 | |||
480 | dbimp24yes12: |
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481 | |||
482 | push edi |
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483 | mov eax,edi |
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484 | sub eax,[0xfe80] |
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485 | shr eax,16 |
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486 | call set_bank |
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487 | and edi,0xffff |
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488 | add edi,0xa0000 |
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489 | mov eax,[esp+8+3*4+16+4+4] |
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490 | stosw |
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491 | shr eax,16 |
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492 | stosb |
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493 | sti |
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494 | pop edi |
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495 | add edi,3 |
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496 | pop ecx |
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497 | pop eax |
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498 | inc eax |
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499 | loop dbnp2412 |
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500 | jmp dbnp24d12 |
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501 | |||
502 | dbimp24no12: |
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503 | |||
504 | pop ecx |
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505 | pop eax |
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506 | cld |
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507 | add edi,3 |
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508 | inc eax |
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509 | loop dbnp2412 |
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510 | |||
511 | dbnp24d12: |
||
512 | |||
513 | mov eax,[esp+3*4+16+4] |
||
514 | test eax,0x80000000 |
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515 | jz nodbgl2412 |
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516 | cmp al,0 |
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517 | jz nodbgl2412 |
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518 | dec eax |
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519 | mov [esp+3*4+16+4],eax |
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520 | |||
521 | nodbgl2412: |
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522 | |||
523 | pop ecx |
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524 | pop edi |
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525 | pop ebx |
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526 | add edi,[0xfe08] |
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527 | dec ebx |
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528 | jz dbnonewpi12 |
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529 | jmp dbnewpi12 |
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530 | |||
531 | dbnonewpi12: |
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532 | |||
533 | add esp,7*4 |
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534 | |||
535 | ret |
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536 | |||
537 | |||
538 | ; DRAWBAR 32 BBP |
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539 | |||
540 | |||
541 | dbpi32bit12: |
||
542 | |||
543 | cld |
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544 | shr ecx,2 |
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545 | |||
546 | dbnewpi3212: |
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547 | |||
548 | push ebx |
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549 | push edi |
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550 | push ecx |
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551 | |||
552 | mov eax,edi |
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553 | sub eax,[0xfe80] |
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554 | shr eax,2 |
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555 | add eax,WinMapAddress |
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102 | poddubny | 556 | mov ebx,[0x3000] |
1 | ha | 557 | cld |
558 | |||
559 | dbnp3212: |
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560 | |||
561 | mov dl,[eax] |
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562 | push eax |
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563 | push ecx |
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564 | cmp dl,bl |
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565 | jnz dbimp32no12 |
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566 | cmp [esp+5*4],dword 0 |
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567 | jz dbimp32yes12 |
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568 | ; call dbcplimit |
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569 | ; jnz dbimp32no12 |
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570 | |||
571 | dbimp32yes12: |
||
572 | |||
573 | push edi |
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574 | mov eax,edi |
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575 | sub eax,[0xfe80] |
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576 | shr eax,16 |
||
577 | call set_bank |
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578 | and edi,0xffff |
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579 | add edi,0xa0000 |
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580 | mov eax,[esp+8+3*4+16+4+4] |
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581 | stosw |
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582 | shr eax,16 |
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583 | stosb |
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584 | sti |
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585 | pop edi |
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586 | add edi,4 |
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587 | inc ebp |
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588 | pop ecx |
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589 | pop eax |
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590 | inc eax |
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591 | loop dbnp3212 |
||
592 | jmp dbnp32d12 |
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593 | |||
594 | dbimp32no12: |
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595 | |||
596 | pop ecx |
||
597 | pop eax |
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598 | inc eax |
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599 | add edi,4 |
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600 | inc ebp |
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601 | loop dbnp3212 |
||
602 | |||
603 | dbnp32d12: |
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604 | |||
605 | mov eax,[esp+12+16+4] |
||
606 | test eax,0x80000000 |
||
607 | jz nodbgl3212 |
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608 | cmp al,0 |
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609 | jz nodbgl3212 |
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610 | dec eax |
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611 | mov [esp+12+16+4],eax |
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612 | |||
613 | nodbgl3212: |
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614 | |||
615 | pop ecx |
||
616 | pop edi |
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617 | pop ebx |
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618 | add edi,[0xfe08] |
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619 | dec ebx |
||
620 | jz nodbnewpi3212 |
||
621 | jmp dbnewpi3212 |
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622 | |||
623 | nodbnewpi3212: |
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624 | |||
625 | add esp,7*4 |
||
626 | ret |
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627 | |||
628 | |||
629 | Vesa12_putpixel24: |
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630 | |||
631 | mov edi,eax ; x |
||
632 | mov eax,ebx ; y |
||
633 | lea edi,[edi+edi*2] |
||
634 | mov ebx,[0xfe08] |
||
635 | mul ebx |
||
636 | add edi,eax |
||
637 | mov eax,edi |
||
638 | shr eax,16 |
||
639 | call set_bank |
||
640 | and edi,65535 |
||
641 | add edi,0xa0000 |
||
642 | mov eax,[esp+28] |
||
643 | stosw |
||
644 | shr eax,16 |
||
645 | mov [edi],al |
||
646 | sti |
||
647 | ret |
||
648 | |||
649 | |||
650 | |||
651 | Vesa12_putpixel32: |
||
652 | |||
653 | mov edi,eax ; x |
||
654 | mov eax,ebx ; y |
||
655 | shl edi,2 |
||
656 | mov ebx,[0xfe08] |
||
657 | mul ebx |
||
658 | add edi,eax |
||
659 | mov eax,edi |
||
660 | shr eax,16 |
||
661 | call set_bank |
||
662 | and edi,65535 |
||
663 | add edi,0xa0000 |
||
664 | mov ecx,[esp+28] |
||
665 | mov [edi],ecx |
||
666 | sti |
||
667 | ret |
||
668 | |||
669 | |||
670 | Vesa12_getpixel24: |
||
671 | |||
672 | mov edi,eax ; x |
||
673 | mov eax,ebx ; y |
||
674 | lea edi,[edi+edi*2] |
||
675 | mov ebx,[0xfe08] |
||
676 | mul ebx |
||
677 | add edi,eax |
||
678 | mov eax,edi |
||
679 | shr eax,16 |
||
680 | call set_bank |
||
681 | and edi,65535 |
||
682 | add edi,0xa0000 |
||
683 | mov ecx,[edi] |
||
684 | and ecx,255*256*256+255*256+255 |
||
685 | sti |
||
686 | ret |
||
687 | |||
688 | |||
689 | Vesa12_getpixel32: |
||
690 | |||
691 | mov edi,eax ; x |
||
692 | mov eax,ebx ; y |
||
693 | shl edi,2 |
||
694 | mov ebx,[0xfe08] |
||
695 | xor edx,edx |
||
696 | mul ebx |
||
697 | add edi,eax |
||
698 | mov eax,edi |
||
699 | shr eax,16 |
||
700 | call set_bank |
||
701 | and edi,65535 |
||
702 | add edi,0xa0000 |
||
703 | mov ecx,[edi] |
||
704 | and ecx,255*256*256+255*256+255 |
||
705 | sti |
||
706 | |||
707 | ret |
||
708 | |||
709 | |||
710 | |||
711 | vesa12_putimage: |
||
712 | |||
713 | ; mov ebx,image |
||
714 | ; mov ecx,320*65536+240 |
||
715 | ; mov edx,20*65536+20 |
||
716 | |||
717 | call [disable_mouse] |
||
718 | |||
719 | mov [novesachecksum],dword 0 |
||
720 | push esi |
||
721 | push edi |
||
722 | push eax |
||
723 | push ebx |
||
724 | push ecx |
||
725 | push edx |
||
726 | movzx eax,word [esp+2] |
||
727 | movzx ebx,word [esp+0] |
||
728 | mov ecx,[0x3010] |
||
729 | add eax,[ecx-twdw] |
||
730 | add ebx,[ecx-twdw+4] |
||
731 | push eax |
||
732 | mov eax,ebx ; y |
||
733 | mov ebx,[0xfe08] |
||
734 | mul ebx |
||
735 | pop ecx |
||
736 | add eax,ecx ; x |
||
737 | add eax,ecx |
||
738 | add eax,ecx |
||
739 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? - x start |
||
740 | jz pi2412 |
||
741 | add eax,ecx |
||
742 | |||
743 | pi2412: |
||
744 | |||
745 | add eax,[0xfe80] |
||
746 | mov edi,eax |
||
747 | |||
748 | ; x size |
||
749 | |||
750 | movzx eax,word [esp+6] |
||
751 | mov ecx,eax |
||
752 | add ecx,eax |
||
753 | add ecx,eax |
||
754 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? - x size |
||
755 | jz pi24312 |
||
756 | add ecx,eax |
||
757 | |||
758 | pi24312: |
||
759 | |||
760 | mov esi,[esp+8] |
||
761 | movzx ebx,word [esp+4] |
||
762 | |||
763 | ; check limits while draw ? |
||
764 | |||
765 | push eax |
||
766 | push ecx |
||
767 | mov eax,[0x3010] |
||
768 | mov ecx,[eax+draw_data-0x3000+0] |
||
769 | cmp ecx,0 |
||
770 | jnz dbcblimitlset212 |
||
771 | mov ecx,[eax+draw_data-0x3000+4] |
||
772 | cmp ecx,0 |
||
773 | jnz dbcblimitlset212 |
||
774 | mov ecx,[eax+draw_data-0x3000+8] |
||
775 | cmp ecx,[0xfe00] |
||
776 | jnz dbcblimitlset212 |
||
777 | mov ecx,[eax+draw_data-0x3000+12] |
||
778 | cmp ecx,[0xfe04] |
||
779 | jnz dbcblimitlset212 |
||
780 | pop ecx |
||
781 | pop eax |
||
782 | push dword 0 |
||
783 | jmp dbcblimitlno212 |
||
784 | |||
785 | dbcblimitlset212: |
||
786 | |||
787 | pop ecx |
||
788 | pop eax |
||
789 | push dword 1 |
||
790 | |||
791 | dbcblimitlno212: |
||
792 | |||
793 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? |
||
794 | jz pi24bit12 |
||
795 | jmp pi32bit12 |
||
796 | |||
797 | pi24bit12: |
||
798 | |||
799 | cld |
||
800 | push eax |
||
801 | push ebx |
||
802 | push edx |
||
803 | xor edx,edx |
||
804 | mov eax,ecx |
||
805 | mov ebx,3 |
||
806 | div ebx |
||
807 | mov ecx,eax |
||
808 | pop edx |
||
809 | pop ebx |
||
810 | pop eax |
||
811 | |||
812 | newpi12: |
||
813 | |||
814 | push edi |
||
815 | push esi |
||
816 | push ecx |
||
817 | push ebx |
||
818 | |||
819 | xor edx,edx |
||
820 | mov eax,edi |
||
821 | sub eax,[0xfe80] |
||
822 | mov ebx,3 |
||
823 | div ebx |
||
824 | add eax,WinMapAddress |
||
102 | poddubny | 825 | mov ebx,[0x3000] |
1 | ha | 826 | mov bh,[esp+4*4] |
827 | |||
828 | np2412: |
||
829 | |||
830 | cmp bl,[eax] |
||
831 | jnz imp24no12 |
||
832 | mov edx,[esi] |
||
833 | cmp bh,0 |
||
834 | jz imp24yes12 |
||
835 | ; call dbcplimit |
||
836 | ; jnz imp24no12 |
||
837 | |||
838 | imp24yes12: |
||
839 | |||
840 | push eax |
||
841 | push edi |
||
842 | mov eax,edi |
||
843 | sub eax,[0xfe80] |
||
844 | shr eax,16 |
||
845 | call set_bank |
||
846 | and edi,0xffff |
||
847 | add edi,0xa0000 |
||
848 | mov [edi],edx |
||
849 | shr edx,2 |
||
850 | mov [edi+2],dl |
||
851 | sti |
||
852 | pop edi |
||
853 | pop eax |
||
854 | |||
855 | imp24no12: |
||
856 | |||
857 | inc eax |
||
858 | add esi,3 |
||
859 | add edi,3 |
||
860 | dec ecx |
||
861 | jnz np2412 |
||
862 | |||
863 | np24d12: |
||
864 | |||
865 | pop ebx |
||
866 | pop ecx |
||
867 | pop esi |
||
868 | pop edi |
||
869 | |||
870 | add edi,[0xfe08] |
||
871 | xor eax,eax |
||
872 | mov ax,[esp+4+2+4] |
||
873 | lea eax,[eax+eax*2] |
||
874 | add esi,eax |
||
875 | dec ebx |
||
876 | jz nonewpi12 |
||
877 | jmp newpi12 |
||
878 | |||
879 | nonewpi12: |
||
880 | |||
881 | add esp,7*4 |
||
882 | mov eax,0 |
||
883 | ret |
||
884 | |||
885 | |||
886 | pi32bit12: |
||
887 | |||
888 | cld |
||
889 | shr ecx,2 |
||
890 | |||
891 | newpi3212: |
||
892 | |||
893 | push edi |
||
894 | push esi |
||
895 | push ecx |
||
896 | push ebx |
||
897 | |||
898 | mov eax,edi |
||
899 | sub eax,[0xfe80] |
||
900 | shr eax,2 |
||
901 | add eax,WinMapAddress |
||
102 | poddubny | 902 | mov ebx,[0x3000] |
1 | ha | 903 | mov bh,[esp+4*4] |
904 | |||
905 | np3212: |
||
906 | |||
907 | cmp bl,[eax] |
||
908 | jnz imp32no12 |
||
909 | mov edx,[esi] |
||
910 | cmp bh,0 |
||
911 | jz imp32yes12 |
||
912 | ; call dbcplimit |
||
913 | ; jnz imp32no12 |
||
914 | |||
915 | imp32yes12: |
||
916 | |||
917 | push eax |
||
918 | push edi |
||
919 | mov eax,edi |
||
920 | sub eax,[0xfe80] |
||
921 | shr eax,16 |
||
922 | call set_bank |
||
923 | and edi,0xffff |
||
924 | add edi,0xa0000 |
||
925 | mov [edi],edx |
||
926 | sti |
||
927 | pop edi |
||
928 | pop eax |
||
929 | |||
930 | imp32no12: |
||
931 | |||
932 | inc eax |
||
933 | add esi,3 |
||
934 | add edi,4 |
||
935 | dec ecx |
||
936 | jnz np3212 |
||
937 | |||
938 | np32d12: |
||
939 | |||
940 | pop ebx |
||
941 | pop ecx |
||
942 | pop esi |
||
943 | pop edi |
||
944 | |||
945 | add edi,[0xfe08] |
||
946 | movzx eax,word [esp+4+2+4] |
||
947 | lea eax,[eax+eax*2] |
||
948 | add esi,eax |
||
949 | dec ebx |
||
950 | jz nonewpi3212 |
||
951 | jmp newpi3212 |
||
952 | |||
953 | nonewpi3212: |
||
954 | |||
955 | add esp,7*4 |
||
956 | mov eax,0 |
||
957 | ret |
||
958 | |||
959 | |||
960 | vesa12_read_screen_pixel: |
||
961 | |||
962 | and eax,0x3FFFFF |
||
963 | cmp [0xfbf1],byte 24 ; 24 or 32 bpp ? |
||
964 | jz v12rsp24 |
||
965 | mov edi,eax |
||
966 | shl edi,2 |
||
967 | mov eax,edi |
||
968 | shr eax,16 |
||
969 | call set_bank |
||
970 | and edi,65535 |
||
971 | add edi,0xa0000 |
||
972 | mov eax,[edi] |
||
973 | and eax,0x00ffffff |
||
974 | ret |
||
975 | v12rsp24: |
||
976 | |||
977 | imul eax,3 |
||
978 | mov edi,eax |
||
979 | shr eax,16 |
||
980 | call set_bank |
||
981 | and edi,65535 |
||
982 | add edi,0xa0000 |
||
983 | mov eax,[edi] |
||
984 | and eax,0x00ffffff |
||
985 | ret |
||
986 |