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431 | serge | 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 | ;; VGA.INC ;; |
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7 | ;; ;; |
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8 | ;; 640x480 mode 0x12 VGA functions for MenuetOS ;; |
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9 | ;; ;; |
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10 | ;; Paul Butcher, paul.butcher@asa.co.uk ;; |
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11 | ;; ;; |
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12 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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1 | ha | 13 | |
593 | mikedld | 14 | $Revision: 593 $ |
1 | ha | 15 | |
16 | |||
17 | paletteVGA: |
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18 | |||
19 | ;16 colour palette |
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20 | mov dx,0x3c8 |
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21 | mov al,0 |
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22 | out dx,al |
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23 | |||
24 | mov ecx,16 |
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25 | mov dx,0x3c9 |
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26 | xor eax,eax |
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27 | |||
28 | palvganew: |
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29 | |||
30 | mov al,0 |
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31 | test ah,4 |
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32 | jz palvgalbl1 |
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33 | add al,31 |
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34 | test ah,8 |
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35 | jz palvgalbl1 |
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36 | add al,32 |
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37 | palvgalbl1: |
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38 | out dx,al ; red 0,31 or 63 |
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39 | mov al,0 |
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40 | test ah,2 |
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41 | jz palvgalbl2 |
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42 | add al,31 |
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43 | test ah,8 |
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44 | jz palvgalbl2 |
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45 | add al,32 |
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46 | palvgalbl2: |
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47 | out dx,al ; blue 0,31 or 63 |
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48 | mov al,0 |
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49 | test ah,1 |
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50 | jz palvgalbl3 |
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51 | add al,31 |
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52 | test ah,8 |
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53 | jz palvgalbl3 |
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54 | add al,32 |
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55 | palvgalbl3: |
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56 | out dx,al ; green 0,31 or 63 |
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57 | add ah,1 |
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58 | loop palvganew |
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117 | mario79 | 59 | ; mov dx, 3ceh |
379 | serge | 60 | ; mov ax, 0005h |
61 | ; out dx, ax |
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1 | ha | 62 | ret |
63 | |||
117 | mario79 | 64 | palette320x200: |
1 | ha | 65 | |
117 | mario79 | 66 | mov edx,0x3c8 |
67 | xor eax, eax |
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68 | out dx,al |
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69 | mov ecx,256 |
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70 | mov edx,0x3c9 |
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71 | xor eax,eax |
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1 | ha | 72 | |
117 | mario79 | 73 | palnew: |
74 | mov al,0 |
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75 | test ah,64 |
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76 | jz pallbl1 |
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77 | add al,21 |
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78 | pallbl1: |
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79 | test ah,128 |
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80 | jz pallbl2 |
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81 | add al,42 |
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82 | pallbl2: |
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83 | out dx,al |
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84 | mov al,0 |
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85 | test ah,8 |
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86 | jz pallbl3 |
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87 | add al,8 |
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88 | pallbl3: |
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89 | test ah,16 |
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90 | jz pallbl4 |
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91 | add al,15 |
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92 | pallbl4: |
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93 | test ah,32 |
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94 | jz pallbl5 |
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95 | add al,40 |
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96 | pallbl5: |
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97 | out dx,al |
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98 | mov al,0 |
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99 | test ah,1 |
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100 | jz pallbl6 |
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101 | add al,8 |
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102 | pallbl6: |
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103 | test ah,2 |
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104 | jz pallbl7 |
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105 | add al,15 |
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106 | pallbl7: |
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107 | test ah,4 |
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108 | jz pallbl8 |
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109 | add al,40 |
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110 | pallbl8: |
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111 | out dx,al |
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112 | add ah,1 |
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113 | loop palnew |
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1 | ha | 114 | |
117 | mario79 | 115 | ret |
1 | ha | 116 | |
117 | mario79 | 117 | uglobal |
118 | novesachecksum dd 0x0 |
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119 | EGA_counter db 0 |
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120 | VGA_drawing_screen db 0 |
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379 | serge | 121 | VGA_8_pixels: |
117 | mario79 | 122 | rb 16 |
123 | temp: |
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124 | .cx dd 0 |
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125 | endg |
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1 | ha | 126 | |
117 | mario79 | 127 | checkVga_N13: |
1 | ha | 128 | |
381 | serge | 129 | cmp [SCR_MODE],dword 0x13 |
117 | mario79 | 130 | jne @f |
1 | ha | 131 | |
117 | mario79 | 132 | ; cnvl: |
133 | pushad |
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134 | cmp [EGA_counter],1 |
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135 | je novesal |
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381 | serge | 136 | mov ecx,[MOUSE_X] |
117 | mario79 | 137 | cmp ecx,[novesachecksum] |
138 | jne novesal |
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139 | popad |
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140 | @@: |
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141 | ret |
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1 | ha | 142 | |
117 | mario79 | 143 | novesal: |
144 | mov [novesachecksum],ecx |
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145 | mov ecx,0 |
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476 | serge | 146 | movzx eax,word [MOUSE_Y] |
117 | mario79 | 147 | cmp eax,100 |
148 | jge m13l3 |
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149 | mov eax,100 |
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150 | m13l3: |
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151 | cmp eax,480-100 |
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152 | jbe m13l4 |
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153 | mov eax,480-100 |
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154 | m13l4: |
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155 | sub eax,100 |
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156 | imul eax,640*4 |
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157 | add ecx,eax |
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381 | serge | 158 | movzx eax,word [MOUSE_X] |
117 | mario79 | 159 | cmp eax,160 |
160 | jge m13l1 |
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161 | mov eax,160 |
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162 | m13l1: |
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163 | cmp eax,640-160 |
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164 | jbe m13l2 |
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165 | mov eax,640-160 |
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166 | m13l2: |
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167 | sub eax,160 |
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168 | shl eax,2 |
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169 | add ecx,eax |
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381 | serge | 170 | mov esi,[LFBAddress] |
117 | mario79 | 171 | add esi,ecx |
381 | serge | 172 | mov edi,VGABasePtr |
117 | mario79 | 173 | mov edx,200 |
174 | mov ecx,320 |
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175 | cld |
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176 | m13pix: |
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177 | lodsd |
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178 | cmp eax,0 |
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119 | mario79 | 179 | je .save_pixel |
117 | mario79 | 180 | push eax |
181 | mov ebx,eax |
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182 | and eax,(128+64+32) ; blue |
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183 | shr eax,5 |
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184 | and ebx,(128+64+32)*256 ; green |
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185 | shr ebx,8+2 |
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186 | add eax,ebx |
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187 | pop ebx |
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188 | and ebx,(128+64)*256*256 ; red |
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189 | shr ebx,8+8 |
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190 | add eax,ebx |
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191 | .save_pixel: |
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192 | stosb |
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193 | loop m13pix |
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194 | mov ecx,320 |
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195 | add esi,4*(640-320) |
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196 | dec edx |
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197 | jnz m13pix |
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198 | mov [EGA_counter],0 |
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199 | popad |
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200 | ret |
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1 | ha | 201 | |
119 | mario79 | 202 | VGA_drawbackground: |
379 | serge | 203 | ; draw all |
381 | serge | 204 | cmp [SCR_MODE],dword 0x12 |
119 | mario79 | 205 | jne .end |
117 | mario79 | 206 | pushad |
381 | serge | 207 | mov esi,[LFBAddress] |
208 | mov edi,VGABasePtr |
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117 | mario79 | 209 | mov ebx,640/32 ; 640*480/(8*4) |
210 | mov edx,480 |
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211 | @@: |
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212 | push ebx edx esi edi |
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379 | serge | 213 | shl edx,9 |
117 | mario79 | 214 | lea edx,[edx+edx*4] |
215 | add esi,edx |
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216 | shr edx,5 |
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217 | add edi,edx |
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218 | call VGA_draw_long_line |
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219 | pop edi esi edx ebx |
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220 | dec edx |
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221 | jnz @r |
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222 | call VGA_draw_long_line_1 |
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223 | popad |
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119 | mario79 | 224 | .end: |
117 | mario79 | 225 | ret |
1 | ha | 226 | |
117 | mario79 | 227 | VGA_draw_long_line: |
228 | mov dx,3ceh |
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229 | mov ax,0ff08h |
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230 | cli |
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379 | serge | 231 | out dx, ax |
117 | mario79 | 232 | mov ax,0005h |
233 | out dx, ax |
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234 | m12pix: |
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235 | call VGA_draw_32_pixels |
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236 | dec ebx |
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237 | jnz m12pix |
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238 | mov dx,3c4h |
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239 | mov ax,0ff02h |
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240 | out dx,ax |
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241 | mov dx,3ceh |
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242 | mov ax,0205h |
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243 | out dx,ax |
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244 | mov dx,3ceh |
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245 | mov al,08h |
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246 | out dx,al |
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247 | sti |
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248 | ret |
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1 | ha | 249 | |
117 | mario79 | 250 | VGA_draw_32_pixels: |
251 | xor eax,eax |
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252 | mov ebp,VGA_8_pixels |
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253 | mov [ebp],eax |
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254 | mov [ebp+4],eax |
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255 | mov [ebp+8],eax |
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256 | mov [ebp+12],eax |
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257 | mov ch,4 |
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258 | .main_loop: |
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259 | mov cl,8 |
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260 | .convert_pixels_to_VGA: |
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261 | lodsd ; eax = 24bit colour |
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262 | cmp eax,0 |
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263 | je .end |
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264 | rol eax,8 |
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265 | mov al,ch |
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266 | ror eax,8 |
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267 | mov ch,1 |
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268 | dec cl |
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269 | shl ch,cl |
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270 | cmp al,85 |
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119 | mario79 | 271 | jbe .p13green |
117 | mario79 | 272 | or [ebp],ch |
273 | cmp al,170 |
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119 | mario79 | 274 | jbe .p13green |
117 | mario79 | 275 | or [ebp+12],ch |
276 | .p13green: |
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277 | cmp ah,85 |
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119 | mario79 | 278 | jbe .p13red |
117 | mario79 | 279 | or [ebp+4],ch |
280 | cmp ah,170 |
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119 | mario79 | 281 | jbe .p13red |
117 | mario79 | 282 | or [ebp+12],ch |
283 | .p13red: |
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284 | shr eax,8 |
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285 | cmp ah,85 |
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119 | mario79 | 286 | jbe .p13cont |
117 | mario79 | 287 | or [ebp+8],ch |
288 | cmp ah,170 |
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119 | mario79 | 289 | jbe .p13cont |
117 | mario79 | 290 | or [ebp+12],ch |
291 | .p13cont: |
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292 | ror eax,8 |
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293 | mov ch,ah |
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294 | inc cl |
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295 | .end: |
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296 | dec cl |
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297 | jnz .convert_pixels_to_VGA |
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298 | inc ebp |
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299 | dec ch |
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300 | jnz .main_loop |
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301 | push esi |
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302 | sub ebp,4 |
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303 | mov esi,ebp |
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304 | mov dx, 3c4h |
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305 | mov ah, 1h |
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306 | @@: |
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307 | mov al, 02h |
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308 | out dx,ax |
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309 | xchg ax,bp |
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310 | lodsd |
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311 | mov [edi],eax |
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312 | xchg ax,bp |
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313 | shl ah, 1 |
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314 | cmp ah, 10h |
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315 | jnz @r |
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316 | add edi,4 |
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317 | pop esi |
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318 | ret |
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1 | ha | 319 | |
320 | VGA_putpixel: |
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321 | ; eax = x |
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322 | ; ebx = y |
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117 | mario79 | 323 | mov ecx,eax |
324 | mov eax, [esp+32-8+4] ; color |
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379 | serge | 325 | shl ebx,9 |
117 | mario79 | 326 | lea ebx,[ebx+ebx*4] ; умножение на 5 |
327 | lea edx, [ebx+ecx*4] ; + x*BytesPerPixel (Vesa2.0 32) |
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328 | mov edi,edx |
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381 | serge | 329 | add edi, [LFBAddress] ; + LFB address |
117 | mario79 | 330 | mov [edi], eax ; write to LFB for Vesa2.0 |
331 | shr edx,5 ; change BytesPerPixel to 1/8 |
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332 | mov edi,edx |
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381 | serge | 333 | add edi, VGABasePtr ; address of pixel in VGA area |
117 | mario79 | 334 | and ecx,0x07 ; bit no. (modulo 8) |
335 | pushfd |
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336 | ; edi = address, eax = 24bit colour, ecx = bit no. (modulo 8) |
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337 | xor edx,edx |
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338 | cmp eax,0 |
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339 | je .p13cont |
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340 | cmp al,85 |
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119 | mario79 | 341 | jbe .p13green |
117 | mario79 | 342 | or dl,0x01 |
343 | cmp al,170 |
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119 | mario79 | 344 | jbe .p13green |
117 | mario79 | 345 | or dl,0x08 |
346 | .p13green: |
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347 | cmp ah,85 |
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119 | mario79 | 348 | jbe .p13red |
117 | mario79 | 349 | or dl,0x02 |
350 | cmp ah,170 |
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119 | mario79 | 351 | jbe .p13red |
117 | mario79 | 352 | or dl,0x08 |
379 | serge | 353 | .p13red: |
117 | mario79 | 354 | shr eax,8 |
355 | cmp ah,85 |
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119 | mario79 | 356 | jbe .p13cont |
117 | mario79 | 357 | or dl,0x04 |
358 | cmp ah,170 |
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119 | mario79 | 359 | jbe .p13cont |
117 | mario79 | 360 | or dl,0x08 |
361 | .p13cont: |
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362 | ror edx,8 |
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363 | inc cl |
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364 | xor eax,eax |
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365 | inc ah |
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366 | shr ax,cl |
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367 | mov dx,3cfh |
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368 | cli |
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369 | out dx,al |
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370 | mov al,[edi] ; dummy read |
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371 | rol edx,8 |
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372 | mov [edi],dl |
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373 | popfd |
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374 | ;.end: |
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375 | ret |
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379 | serge | 376 | |
117 | mario79 | 377 | VGA__putimage: |
378 | ; ecx = size [x|y] |
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379 | ; edx = coordinates [x|y] |
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381 | serge | 380 | cmp [SCR_MODE],dword 0x12 |
117 | mario79 | 381 | jne @f |
382 | pushad |
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383 | rol edx,16 |
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384 | movzx eax,dx |
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385 | rol edx,16 |
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386 | movzx ebx,dx |
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387 | movzx edx,cx |
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388 | rol ecx,16 |
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389 | movzx ecx,cx |
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390 | call VGA_draw_bar_1 |
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391 | popad |
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392 | @@: |
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393 | ret |
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1 | ha | 394 | |
117 | mario79 | 395 | VGA_draw_bar: |
396 | ; eax cx |
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397 | ; ebx cy |
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398 | ; ecx xe |
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399 | ; edx ye |
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381 | serge | 400 | cmp [SCR_MODE],dword 0x12 |
117 | mario79 | 401 | jne @f |
402 | pushad |
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403 | sub ecx,eax |
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404 | sub edx,ebx |
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405 | and eax,0xffff |
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406 | and ebx,0xffff |
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407 | and ecx,0xffff |
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408 | and edx,0xffff |
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409 | call VGA_draw_bar_1 |
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410 | popad |
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411 | @@: |
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412 | ret |
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1 | ha | 413 | |
117 | mario79 | 414 | VGA_draw_bar_1: |
415 | mov [temp.cx],eax |
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379 | serge | 416 | mov eax, [TASK_BASE] |
117 | mario79 | 417 | add ebx, [eax-twdw + 4] |
418 | mov eax, [eax-twdw + 0] |
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419 | add eax, [temp.cx] |
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420 | and eax,0xfff8 |
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379 | serge | 421 | shl ebx,9 |
117 | mario79 | 422 | lea ebx,[ebx+ebx*4] ; умножение на 5 |
423 | lea ebx, [ebx+eax*4] ; + x*BytesPerPixel (Vesa2.0 32) |
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424 | mov esi,ebx |
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381 | serge | 425 | add esi, [LFBAddress] ; + LFB address |
117 | mario79 | 426 | shr ebx,5 ; change BytesPerPixel to 1/8 |
427 | mov edi,ebx |
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381 | serge | 428 | add edi, VGABasePtr ; address of pixel in VGA area |
117 | mario79 | 429 | mov ebx,ecx |
430 | shr ebx,5 |
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431 | inc ebx |
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432 | .main_loop: |
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433 | call VGA_draw_long_line_1 |
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434 | dec edx |
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435 | jnz .main_loop |
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436 | call VGA_draw_long_line_1 |
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437 | ret |
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1 | ha | 438 | |
117 | mario79 | 439 | VGA_draw_long_line_1: |
440 | push ebx edx esi edi |
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379 | serge | 441 | shl edx,9 |
117 | mario79 | 442 | lea edx,[edx+edx*4] |
443 | add esi,edx |
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444 | shr edx,5 |
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445 | add edi,edx |
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446 | call VGA_draw_long_line |
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447 | pop edi esi edx ebx |
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448 | ret |
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1 | ha | 449 |