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1 ;=============================================================================
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2 ;
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3 ; File tft.inc
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4 ;
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5 ; Declaring interfaces to the TFT screen and its Oxxx controler
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6 ;
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7 ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved.
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8 ;=============================================================================
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9 ; HISTORY
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10 ; 2011-05-24 : [jDG] Cleanups from initial Matthias code.
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11
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12 ;=============================================================================
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13 ; TFT public subroutines
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14 ;=============================================================================
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15
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16 ; Writes two half-pixels at position (win_top,win_leftx2)
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17 ; Inputs: win_leftx2, win_top, win_color:2
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18 ; Trashed: WREG, PROD
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19 extern pixel_write
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20
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21 ;-----------------------------------------------------------------------------
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22 ; Writes one half-pixel at position (win_top,win_leftx2).
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23 ; Inputs: win_leftx2, win_top, win_color:2
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24 ; Trashed: WREG, PROD
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25 extern half_pixel_write
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26
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27 ;-----------------------------------------------------------------------------
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28 ; TFT_frame : draw a frame around current box with current color.
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29 ; Inputs: win_top, win_leftx2, win_height, win_width, win_color1, win_color2
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30 ; Outputs: (none)
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31 ; Trashed: WREG, PROD, aa_start:2, aa_end:2, win_leftx2, win_width:1
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32 extern TFT_frame
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33
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34 ;-----------------------------------------------------------------------------
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35 extern TFT_DisplayOff ; Power-off everything (need a boot next)
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36 extern TFT_boot ; Initialize screen hardware
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37 extern TFT_Display_FadeIn ; Smooth lighting
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38 extern TFT_Display_FadeOut ; Smooth darkening
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39 extern TFT_ClearScreen
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40 extern TFT_box_write
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41 extern TFT_box
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42 extern TFT_DataWrite_PROD
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43 extern TFT_set_color
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44 extern init_pixel_write
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45 extern pixel_write
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46 extern pixel_write_col320
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47 extern half_vertical_line
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48 extern half_horizontal_line
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49 extern TFT_dump_screen
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50
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51 ;=============================================================================
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52 ; Low level macros (for aa_wordprocessor and color_processor).
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53 ;
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54 extern TFT_CmdWrite
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55 Index_out macro low_b
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56 movlw low_b
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57 call TFT_CmdWrite
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58 endm
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59
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60 ;=============================================================================
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61 ; A shortcut for TFT_box and TFT_frame call sequences.
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62 ;
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63 extern box_frame_std, box_frame_common, box_frame_color, box_frame_color16
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64 extern box_std_block, box_black_block, box_color_block
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65
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66 ; Erase a given screen area.
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67 WIN_BOX_BLACK macro top, bottom, left, right
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68 call box_black_block
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69 db top, (bottom)-(top)+1, left, (right)-(left)+1
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70 endm
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71
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72 ; Fill a given screen area with standard color (White).
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73 WIN_BOX_STD macro top, bottom, left, right
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74 call box_std_block
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75 db top, (bottom)-(top)+1, left, (right)-(left)+1
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76 endm
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77
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78 ; Fill a given screen area with color from WREG (8bits rrrgggbb)
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79 WIN_BOX_COLOR macro top, bottom, left, right
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80 call box_color_block
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81 db top, (bottom)-(top)+1, left, (right)-(left)+1
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82 endm
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83
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84 ; Draw a frame in standard color (White).
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85 WIN_FRAME_STD macro top, bottom, left, right
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86 call box_frame_std
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87 db top, (bottom)-(top)+1, left, (right)-(left)+1
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88 endm
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89
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90 ; Draw a frame with color from WREG (8bits rrrgggbb)
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91 WIN_FRAME_COLOR macro top, bottom, left, right
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92 call box_frame_color
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93 db top, (bottom)-(top)+1, left, (right)-(left)+1
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94 endm
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95
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96 ; Draw a frame with color from win_color (16bits in TFT format)
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97 WIN_FRAME_COLOR16 macro top, bottom, left, right
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98 call box_frame_color16
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99 db top, (bottom)-(top)+1, left, (right)-(left)+1
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100 endm
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101
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102 WIN_FONT macro win_font_input
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103 movlw win_font_input
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104 movff WREG,win_font
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105 endm
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106
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107 WIN_TOP macro win_top_input
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108 movlw win_top_input
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109 movff WREG,win_top
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110 endm
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111
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112 WIN_HEIGHT macro h
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113 movlw h
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114 movff WREG,win_height
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115 endm
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116
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117 WIN_LEFT macro win_left_input
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118 movlw win_left_input
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119 movff WREG,win_leftx2
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120 endm
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121
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122 WIN_WIDTH macro w
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123 movlw w
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124 movff WREG,win_width
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125 endm
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126
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127 WIN_INVERT macro win_invert_input
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128 movlw win_invert_input
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129 movff WREG,win_invert
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130 endm
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131
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132 WIN_COLOR macro win_color_input
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133 movlw win_color_input
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134 call TFT_set_color
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135 endm
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136
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137 ;=============================================================================
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138 ; TFT_write_flash_image
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139 ;
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140 ; Inputs: cx, cy : Image center (in 0..160 x 0..240 range)
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141 ; image : flash image header's address
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142 ; Outputs: win_top, win_left, win_height, win_width
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143 ; image copyed on screen.
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144 ; Trashed: PROD, hi, lo
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145 ;
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146 extern TFT_write_flash_image
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147 extern TFT_write_flash_image_addr
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148 TFT_WRITE_FLASH_IMAGE macro cx, cy, image
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149 If LOW(image) != 0
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150 Error "Image "image" mis-aligned"
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151 Endif
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152 If (UPPER(image) & 0xF0) != 0x30
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153 Error "Image "image" not in image flash memory"
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154 Endif
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155 If (cx < 0) || (cx > 160)
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156 Error "Image center's X "cx" not in 0..160 range".
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157 Endif
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158 If (cy < 0) || (cy > 240)
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159 Error "Image center's Y "cy" not in 0..240 range".
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160 Endif
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161 ; Once we know image is aligned, we can use the compact (4bytes)
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162 ; 12bit registers to pass the address:
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163 lfsr FSR2, ((image)>>8) & 0xFFF
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164 WIN_LEFT cx
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165 WIN_TOP cy
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166 call TFT_write_flash_image
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167 endm
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168
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169 ;=============================================================================
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170 ; TFT_write_prom_image
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171 ;
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172 TFT_WRITE_PROM_IMAGE macro icon
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173 extern icon, color_image
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174 movlw LOW(icon)
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175 movwf TBLPTRL
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176 movlw HIGH(icon)
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177 movwf TBLPTRH
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178 movlw UPPER(icon)
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179 movwf TBLPTRU
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180 call color_image
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181 endm
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182
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183 ;=============================================================================
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184 ; Macro to provides our own interface code.
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185 ;
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186 PIXEL_WRITE macro colRegister, rowRegister
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187 movff colRegister,win_leftx2
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188 movff rowRegister,win_top
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189 call pixel_write
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190 endm
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191
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192 INIT_PIXEL_WROTE macro colRegister
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193 movff colRegister,win_leftx2
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194 call init_pixel_write
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195 endm
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196
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197 HALF_PIXEL_WRITE macro rowRegister
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198 movff rowRegister,win_top
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199 call half_pixel_write
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200 endm
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201
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