annotate src/cs/drivers/drv_app/r2d/r2d_color_color_ia.s @ 166:7409b22cac61

fc-target.cfg config header renamed to more sensible fc-target.h
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 07 Apr 2019 00:56:07 +0000
parents b6a5e36de839
children
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3 .state32
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5 .sect ".r2dlcd"
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7 .if (R2D_ASM = 1)
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8
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9 .include "r2d_asm_configs.inc"
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10 .include "r2d_asm_utils.inc"
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11 .include "r2d_asm_patch_utils.inc"
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15
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Mychaela Falconia <falcon@freecalypso.org>
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16 .global _r2d_start_branch_inst
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Mychaela Falconia <falcon@freecalypso.org>
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17 .global _r2d_stop_branch_inst
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Mychaela Falconia <falcon@freecalypso.org>
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18 .global _r2d_load_foreground
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Mychaela Falconia <falcon@freecalypso.org>
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19 .global _r2d_load_background
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20
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Mychaela Falconia <falcon@freecalypso.org>
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21 .global _r2d_blit_foreground
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Mychaela Falconia <falcon@freecalypso.org>
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22 .global _r2d_blit_background
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Mychaela Falconia <falcon@freecalypso.org>
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23
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24 .global _r2d_always_write_down
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25 .global _r2d_always_write_up
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Mychaela Falconia <falcon@freecalypso.org>
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26 .global _r2d_always_read_down
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Mychaela Falconia <falcon@freecalypso.org>
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27 .global _r2d_always_read_up
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Mychaela Falconia <falcon@freecalypso.org>
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28
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29 .global _r2d_never_write
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Mychaela Falconia <falcon@freecalypso.org>
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30 .global _r2d_lcd_start_nothing
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31
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32 .global _r2d_start_get_color
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33
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34 .def _p_r2d_blit_foreground
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35 .def _p_r2d_blit_background
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37 .bss _r2d_blit_foreground,4,4,4
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38 .bss _r2d_blit_background,4,4,4
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39
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40
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Mychaela Falconia <falcon@freecalypso.org>
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41 .ref _r2d_color_alpha_operator
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Mychaela Falconia <falcon@freecalypso.org>
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42 .ref _r2d_color_framebuffer_foreground_pixel
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43
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44 .def _r2d_icolor_alpha_op
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45 .def _r2d_icolor_foreground_pixel_test
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46
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47
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48
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49 .global _r2d_color_start_copy
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50 .global _r2d_color_start_or
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51 .global _r2d_color_start_and
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52 .global _r2d_color_start_xor
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53 .global _r2d_color_start_notcopy
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54 .global _r2d_color_start_notor
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55 .global _r2d_color_start_notand
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56 .global _r2d_color_start_notxor
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57 .global _r2d_color_start_alpha
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Mychaela Falconia <falcon@freecalypso.org>
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58 .global _r2d_color_start_erase
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59 .global _r2d_color_start_foreground_pixel
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60
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61
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62 _r2d_color_start_copy:
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Mychaela Falconia <falcon@freecalypso.org>
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63 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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64 MOV calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
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65 MOV calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
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66 _r2d_color_end_copy
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Mychaela Falconia <falcon@freecalypso.org>
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67
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68 _r2d_color_start_or:
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Mychaela Falconia <falcon@freecalypso.org>
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69 MOVS calca,calca,LSL #8
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Mychaela Falconia <falcon@freecalypso.org>
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70 MOVNEQ calcb,calca,LSR #8
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Mychaela Falconia <falcon@freecalypso.org>
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71 NOP
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Mychaela Falconia <falcon@freecalypso.org>
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72 _r2d_color_end_or
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73
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Mychaela Falconia <falcon@freecalypso.org>
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74 _r2d_color_start_and:
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Mychaela Falconia <falcon@freecalypso.org>
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75 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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76 AND calcb,calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
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77 MOV calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
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78 _r2d_color_end_and
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Mychaela Falconia <falcon@freecalypso.org>
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79
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Mychaela Falconia <falcon@freecalypso.org>
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80 _r2d_color_start_xor:
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Mychaela Falconia <falcon@freecalypso.org>
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81 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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82 EOR calcb,calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
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83 MOV calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
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84 _r2d_color_end_xor
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Mychaela Falconia <falcon@freecalypso.org>
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85
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Mychaela Falconia <falcon@freecalypso.org>
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86 _r2d_color_start_notcopy:
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Mychaela Falconia <falcon@freecalypso.org>
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87 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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88 MVN calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
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89 MOV calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
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90 _r2d_color_end_notcopy
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Mychaela Falconia <falcon@freecalypso.org>
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91
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Mychaela Falconia <falcon@freecalypso.org>
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92 _r2d_color_start_notor:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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93 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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94 ORR calcb,calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
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95 MVN calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
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96 _r2d_color_end_notor
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Mychaela Falconia <falcon@freecalypso.org>
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97
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Mychaela Falconia <falcon@freecalypso.org>
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98 _r2d_color_start_notand:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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99 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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100 AND calcb,calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 MVN calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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102 _r2d_color_end_notand
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Mychaela Falconia <falcon@freecalypso.org>
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103
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Mychaela Falconia <falcon@freecalypso.org>
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104 _r2d_color_start_notxor:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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105 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 EOR calcb,calcb,calca
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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107 MVN calcb,calcb
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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108 _r2d_color_end_notxor
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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109
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Mychaela Falconia <falcon@freecalypso.org>
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110 _r2d_color_start_erase:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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111 MOVS calca,calca,LSL #8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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112 MOVNEQ calcb,calca,LSR #8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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113 NOP
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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114 _r2d_color_end_erase
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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115
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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116 _r2d_color_start_alpha
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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117 ; Identifying code telling the patcher that a special
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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118 ; construct required to branch to a C function is used
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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119 .long BRANCH_ID
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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120 ; The absolute address of the C function which is going to be
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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121 ; converted to a PC relative offset by the patcher
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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122 .long _r2d_icolor_alpha_op
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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123 _r2d_color_stop_alpha
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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124
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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125 _r2d_color_start_foreground_pixel
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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126 ; Identifying code telling the patcher that a special
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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127 ; construct required to branch to a C function is used
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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128 .long BRANCH_ID
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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129 ; The absolute address of the C function which is going to be
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 ; converted to a PC relative offset by the patcher
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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131 .long _r2d_icolor_foreground_pixel_test
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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132 _r2d_color_stop_foreground_pixel
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Mychaela Falconia <falcon@freecalypso.org>
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133
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Mychaela Falconia <falcon@freecalypso.org>
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134
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135
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Mychaela Falconia <falcon@freecalypso.org>
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136
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Mychaela Falconia <falcon@freecalypso.org>
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137
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138 ; Stub function allowing to branch to a C one whose interface
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139 ; is UINT32 r2d_lcd_some_operator(UINT32 old,UINT32 value)
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140 _r2d_icolor_alpha_op:
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Mychaela Falconia <falcon@freecalypso.org>
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141 R2D_OP_SAVE_CONTEXT
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Mychaela Falconia <falcon@freecalypso.org>
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142 BL _r2d_color_alpha_operator
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Mychaela Falconia <falcon@freecalypso.org>
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143 R2D_OP_RESTORE_CONTEXT
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144
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145 ; Check kind of pixel
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146 _r2d_icolor_foreground_pixel_test:
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147 R2D_COL_SAVE_CONTEXT
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148 BL _r2d_color_framebuffer_foreground_pixel
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149 R2D_COL_RESTORE_CONTEXT
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150
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Mychaela Falconia <falcon@freecalypso.org>
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151 ; First instruction replacing ".long BRANCH_ID" when code is patched
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Mychaela Falconia <falcon@freecalypso.org>
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152 _r2d_start_branch_inst
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Mychaela Falconia <falcon@freecalypso.org>
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153 STMFD SP!, {calca}
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Mychaela Falconia <falcon@freecalypso.org>
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154
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Mychaela Falconia <falcon@freecalypso.org>
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155 _r2d_stop_branch_inst
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Mychaela Falconia <falcon@freecalypso.org>
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156 LDMFD SP!, {calca}
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Mychaela Falconia <falcon@freecalypso.org>
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157
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158 ; Code reading the foreground and background colors
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159 ; from a const table
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Mychaela Falconia <falcon@freecalypso.org>
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160 _r2d_start_get_color
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Mychaela Falconia <falcon@freecalypso.org>
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161 LDRNE calca,_p_r2d_blit_foreground
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Mychaela Falconia <falcon@freecalypso.org>
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162 LDREQ calca,_p_r2d_blit_background
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163 LDR calca,[calca]
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Mychaela Falconia <falcon@freecalypso.org>
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164 _r2d_stop_get_color
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Mychaela Falconia <falcon@freecalypso.org>
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165
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166 ; Code doing nothing to removed patch
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167 _r2d_lcd_start_nothing
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Mychaela Falconia <falcon@freecalypso.org>
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168 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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169 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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170 MOV calca,calca
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Mychaela Falconia <falcon@freecalypso.org>
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171 _r2d_lcd_stop_nothing
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Mychaela Falconia <falcon@freecalypso.org>
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172
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173 ; Force writing of value when dst is R2D color framebuffer
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174 ; (down mode)
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175 _r2d_always_write_down
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Mychaela Falconia <falcon@freecalypso.org>
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176 STR dstvalue,[p_dst_current],#4
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Mychaela Falconia <falcon@freecalypso.org>
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177
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178 ; Force writing of value when dst is R2D color framebuffer
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179 ; (up mode)
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180 _r2d_always_write_up
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181 STR dstvalue,[p_dst_current],#-4
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182
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183 ; Force reading of src when src is R2D color framebuffer
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parents:
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184 _r2d_always_read_down:
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185 LDR src_current,[p_src_current,#4]!
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186
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parents:
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187 ; Force reading of src when src is R2D color framebuffer
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parents:
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188 _r2d_always_read_up:
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Mychaela Falconia <falcon@freecalypso.org>
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189 LDR src_current,[p_src_current,#-4]!
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parents:
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190
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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191
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parents:
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192 ; Remove force writing
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Mychaela Falconia <falcon@freecalypso.org>
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193 _r2d_never_write
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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194 MOV dstvalue,dstvalue
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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195
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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196
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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197
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198 ; Array containing current foreground and background colors
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Mychaela Falconia <falcon@freecalypso.org>
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199 .align 4
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200 _p_r2d_blit_foreground: .field _r2d_blit_foreground,32
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Mychaela Falconia <falcon@freecalypso.org>
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201
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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202 .align 4
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Mychaela Falconia <falcon@freecalypso.org>
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203 _p_r2d_blit_background: .field _r2d_blit_background,32
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204
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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205
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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206
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Mychaela Falconia <falcon@freecalypso.org>
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207 .endif
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208 .end