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Rev | Author | Line No. | Line |
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1 | ha | 1 | sys_cd_audio: |
2 | |||
3 | cmp word [cdbase],word 0 |
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4 | jnz @f |
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5 | mov eax,1 |
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6 | ret |
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7 | @@: |
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8 | |||
9 | ; eax=1 cdplay at ebx 0x00FFSSMM |
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10 | ; eax=2 get tracklist size of ecx to [ebx] |
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11 | ; eax=3 stop/pause playing |
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12 | |||
13 | cmp eax,1 |
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14 | jnz nocdp |
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15 | call sys_cdplay |
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16 | ret |
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17 | nocdp: |
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18 | |||
19 | cmp eax,2 |
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20 | jnz nocdtl |
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21 | mov edi,[0x3010] |
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115 | poddubny | 22 | add edi,TASKDATA.mem_start |
1 | ha | 23 | add ebx,[edi] |
24 | call sys_cdtracklist |
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25 | ret |
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26 | nocdtl: |
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27 | |||
28 | cmp eax,3 |
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29 | jnz nocdpause |
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30 | call sys_cdpause |
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31 | ret |
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32 | nocdpause: |
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33 | |||
34 | mov eax,0xffffff01 |
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35 | ret |
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36 | |||
37 | |||
38 | |||
39 | sys_cd_atapi_command: |
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40 | |||
41 | pushad |
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42 | |||
43 | mov dx,word [cdbase] |
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44 | add dx,6 |
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45 | mov ax,word [cdid] |
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46 | out dx,al |
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47 | mov esi,10 |
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48 | call delay_ms |
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49 | mov dx,word [cdbase] |
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50 | add dx,7 |
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51 | in al,dx |
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52 | and al,0x80 |
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53 | cmp al,0 |
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54 | jnz res |
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55 | jmp cdl6 |
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56 | res: |
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57 | mov dx,word [cdbase] |
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58 | add dx,7 |
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59 | mov al,0x8 |
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60 | out dx,al |
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61 | mov dx,word [cdbase] |
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62 | add dx,0x206 |
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63 | mov al,0xe |
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64 | out dx,al |
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65 | mov esi,1 |
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66 | call delay_ms |
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67 | mov dx,word [cdbase] |
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68 | add dx,0x206 |
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69 | mov al,0x8 |
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70 | out dx,al |
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71 | mov esi,30 |
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72 | call delay_ms |
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73 | xor cx,cx |
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74 | cdl5: |
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75 | inc cx |
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76 | cmp cx,10 |
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77 | jz cdl6 |
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78 | mov dx,word [cdbase] |
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79 | add dx,7 |
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80 | in al,dx |
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81 | and al,0x88 |
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82 | cmp al,0x00 |
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83 | jz cdl5 |
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84 | mov esi,100 |
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85 | call delay_ms |
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86 | jmp cdl5 |
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87 | cdl6: |
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88 | mov dx,word [cdbase] |
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89 | add dx,4 |
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90 | mov al,0 |
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91 | out dx,al |
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92 | mov dx,word [cdbase] |
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93 | add dx,5 |
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94 | mov al,0 |
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95 | out dx,al |
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96 | mov dx,word [cdbase] |
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97 | add dx,7 |
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98 | mov al,0xec |
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99 | out dx,al |
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100 | mov esi,5 |
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101 | call delay_ms |
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102 | mov dx,word [cdbase] |
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103 | add dx,1 |
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104 | mov al,0 |
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105 | out dx,al |
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106 | add dx,1 |
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107 | mov al,0 |
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108 | out dx,al |
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109 | add dx,1 |
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110 | mov al,0 |
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111 | out dx,al |
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112 | add dx,1 |
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113 | mov al,0 |
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114 | out dx,al |
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115 | add dx,1 |
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116 | mov al,128 |
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117 | out dx,al |
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118 | add dx,2 |
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119 | mov al,0xa0 |
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120 | out dx,al |
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121 | xor cx,cx |
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122 | mov dx,word [cdbase] |
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123 | add dx,7 |
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124 | cdl1: |
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125 | inc cx |
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126 | cmp cx,100 |
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127 | jz cdl2 |
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128 | in al,dx |
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129 | and ax,0x88 |
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130 | cmp al,0x8 |
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131 | jz cdl2 |
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132 | mov esi,2 |
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133 | call delay_ms |
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134 | jmp cdl1 |
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135 | cdl2: |
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136 | |||
137 | popad |
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138 | ret |
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139 | |||
140 | |||
141 | sys_cdplay: |
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142 | |||
143 | mov ax,5 |
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144 | push ax |
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145 | push ebx |
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146 | cdplay: |
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147 | call sys_cd_atapi_command |
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148 | cli |
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149 | mov dx,word [cdbase] |
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150 | mov ax,0x0047 |
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151 | out dx,ax |
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152 | mov al,1 |
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153 | mov ah,[esp+0] ; min xx |
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154 | out dx,ax |
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155 | mov ax,[esp+1] ; fr sec |
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156 | out dx,ax |
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157 | mov ax,256+99 |
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158 | out dx,ax |
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159 | mov ax,0x0001 |
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160 | out dx,ax |
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161 | mov ax,0x0000 |
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162 | out dx,ax |
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163 | mov esi,10 |
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164 | call delay_ms |
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165 | sti |
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166 | add dx,7 |
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167 | in al,dx |
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168 | test al,1 |
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169 | jz cdplayok |
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170 | mov ax,[esp+4] |
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171 | dec ax |
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172 | mov [esp+4],ax |
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173 | cmp ax,0 |
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174 | jz cdplayfail |
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175 | jmp cdplay |
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176 | cdplayfail: |
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177 | cdplayok: |
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178 | pop ebx |
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179 | pop ax |
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180 | xor eax, eax |
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181 | ret |
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182 | |||
183 | |||
184 | sys_cdtracklist: |
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185 | |||
186 | push ebx |
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187 | tcdplay: |
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188 | call sys_cd_atapi_command |
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189 | mov dx,word [cdbase] |
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190 | mov ax,0x43+2*256 |
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191 | out dx,ax |
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192 | mov ax,0x0 |
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193 | out dx,ax |
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194 | mov ax,0x0 |
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195 | out dx,ax |
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196 | mov ax,0x0 |
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197 | out dx,ax |
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198 | mov ax,200 |
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199 | out dx,ax |
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200 | mov ax,0x0 |
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201 | out dx,ax |
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202 | in al,dx |
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203 | mov cx,1000 |
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204 | mov dx,word [cdbase] |
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205 | add dx,7 |
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206 | cld |
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207 | cdtrnwewait: |
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208 | mov esi,10 |
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209 | call delay_ms |
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210 | in al,dx |
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211 | and al,128 |
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212 | cmp al,0 |
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213 | jz cdtrl1 |
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214 | loop cdtrnwewait |
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215 | cdtrl1: |
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216 | ; read the result |
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217 | mov ecx,[esp+0] |
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218 | mov dx,word [cdbase] |
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219 | cdtrread: |
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220 | add dx,7 |
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221 | in al,dx |
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222 | and al,8 |
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223 | cmp al,8 |
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224 | jnz cdtrdone |
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225 | sub dx,7 |
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226 | in ax,dx |
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227 | mov [ecx],ax |
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228 | add ecx,2 |
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229 | jmp cdtrread |
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230 | cdtrdone: |
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231 | pop ecx |
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232 | xor eax, eax |
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233 | ret |
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234 | |||
235 | |||
236 | sys_cdpause: |
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237 | |||
238 | call sys_cd_atapi_command |
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239 | |||
240 | mov dx,word [cdbase] |
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241 | mov ax,0x004B |
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242 | out dx,ax |
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243 | mov ax,0 |
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244 | out dx,ax |
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245 | mov ax,0 |
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246 | out dx,ax |
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247 | mov ax,0 |
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248 | out dx,ax |
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249 | mov ax,0 |
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250 | out dx,ax |
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251 | mov ax,0 |
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252 | out dx,ax |
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253 | |||
254 | mov esi,10 |
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255 | call delay_ms |
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256 | add dx,7 |
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257 | in al,dx |
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258 | |||
259 | xor eax, eax |
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260 | ret |
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261 |