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Rev | Author | Line No. | Line |
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7736 | dunkaist | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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9715 | Doczom | 3 | ;; Copyright (C) KolibriOS team 2020-2022. All rights reserved. ;; |
7736 | dunkaist | 4 | ;; Distributed under terms of the GNU General Public License. ;; |
5 | ;; Version 2, or (at your option) any later version. ;; |
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6 | ;; ;; |
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7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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8 | |||
9 | $Revision: 9715 $ |
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10 | |||
11 | unicode.utf8.decode: |
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12 | test ecx, ecx |
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13 | jz .error |
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14 | movzx eax, byte[esi] |
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15 | test al, al |
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16 | jns .read1 |
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17 | shl al, 2 |
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18 | jnc .error |
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19 | shl al, 1 |
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20 | jnc .read2 |
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21 | shl al, 1 |
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22 | jnc .read3 |
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23 | shl al, 1 |
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24 | jnc .read4 |
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25 | jmp .error |
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26 | .read1: |
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27 | sub ecx, 1 |
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28 | add esi, 1 |
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29 | jmp .done |
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30 | .read2: |
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31 | cmp ecx, 2 |
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32 | jb .error |
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33 | shl eax, 5 |
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34 | mov al, [esi+1] |
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35 | shl al, 1 |
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36 | jnc .error |
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37 | shl al, 1 |
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38 | jc .error |
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39 | shr eax, 2 |
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40 | sub ecx, 2 |
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41 | add esi, 2 |
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42 | jmp .done |
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43 | .read3: |
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44 | cmp ecx, 3 |
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45 | jb .error |
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46 | shl eax, 4 |
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47 | mov al, [esi+1] |
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48 | shl al, 1 |
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49 | jnc .error |
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50 | shl al, 1 |
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51 | jc .error |
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52 | shl eax, 6 |
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53 | mov al, [esi+2] |
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54 | shl al, 1 |
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55 | jnc .error |
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56 | shl al, 1 |
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57 | jc .error |
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58 | shr eax, 2 |
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59 | sub ecx, 3 |
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60 | add esi, 3 |
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61 | jmp .done |
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62 | .read4: |
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63 | cmp ecx, 4 |
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64 | jb .error |
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65 | shl eax, 3 |
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66 | mov al, [esi+1] |
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67 | shl al, 1 |
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68 | jnc .error |
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69 | shl al, 1 |
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70 | jc .error |
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71 | shl eax, 6 |
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72 | mov al, [esi+2] |
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73 | shl al, 1 |
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74 | jnc .error |
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75 | shl al, 1 |
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76 | jc .error |
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77 | shl eax, 6 |
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78 | mov al, [esi+3] |
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79 | shl al, 1 |
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80 | jnc .error |
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81 | shl al, 1 |
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82 | jc .error |
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83 | shr eax, 2 |
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84 | sub ecx, 4 |
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85 | add esi, 4 |
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86 | jmp .done |
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87 | .error: |
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88 | .done: |
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89 | ret |
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90 | |||
91 | |||
92 | unicode.cp866.encode: |
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93 | call uni2ansi_char |
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94 | ret |
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95 | |||
96 | |||
97 | unicode.utf16.encode: |
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98 | cmp eax, 0x110000 |
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99 | jae .error |
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100 | cmp eax, 0x10000 |
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101 | jae .write2 |
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102 | cmp eax, 0xe000 |
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103 | jae .write1 |
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104 | cmp eax, 0xd800 |
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105 | jb .write1 |
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106 | jmp .error |
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107 | .write1: |
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108 | jmp .done |
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109 | .write2: |
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110 | sub eax, 0x10000 |
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111 | shl eax, 6 |
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112 | shr ax, 6 |
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113 | or eax, 0xdc00d800 |
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114 | jmp .done |
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115 | .done: |
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116 | .error: |
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117 | ret |