Argument maybe found in Init_Config ? not sure. Init_Config(1) still.
This commit is contained in:
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3 changed files with 70 additions and 46 deletions
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@ -125,7 +125,7 @@
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<SetRegEntry>
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<Number>0</Number>
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<Key>DLGDARM</Key>
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<Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(100=15,39,661,712,0)(110=-1,-1,-1,-1,0)(111=-1,-1,-1,-1,0)(1011=-1,-1,-1,-1,0)(180=-1,-1,-1,-1,0)(120=1208,526,1629,953,1)(121=566,392,987,819,1)(122=-1,-1,-1,-1,0)(123=-1,-1,-1,-1,0)(140=-1,-1,-1,-1,0)(240=-1,-1,-1,-1,0)(190=-1,-1,-1,-1,0)(200=-1,-1,-1,-1,0)(170=-1,-1,-1,-1,0)(130=-1,-1,-1,-1,0)(131=-1,-1,-1,-1,0)(132=-1,-1,-1,-1,0)(133=-1,-1,-1,-1,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(210=-1,-1,-1,-1,0)(211=-1,-1,-1,-1,0)(220=-1,-1,-1,-1,0)(221=-1,-1,-1,-1,0)(230=-1,-1,-1,-1,0)(234=-1,-1,-1,-1,0)(231=-1,-1,-1,-1,0)(232=-1,-1,-1,-1,0)(233=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(151=-1,-1,-1,-1,0)</Name>
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<Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(100=15,39,661,712,0)(110=-1,-1,-1,-1,0)(111=-1,-1,-1,-1,0)(1011=-1,-1,-1,-1,0)(180=-1,-1,-1,-1,0)(120=463,144,884,571,1)(121=476,571,897,998,1)(122=-1,-1,-1,-1,0)(123=-1,-1,-1,-1,0)(140=-1,-1,-1,-1,0)(240=-1,-1,-1,-1,0)(190=-1,-1,-1,-1,0)(200=-1,-1,-1,-1,0)(170=-1,-1,-1,-1,0)(130=18,101,612,852,0)(131=255,99,849,850,0)(132=49,93,643,844,0)(133=-1105,32,-511,783,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(210=-1,-1,-1,-1,0)(211=-1,-1,-1,-1,0)(220=-1,-1,-1,-1,0)(221=-1,-1,-1,-1,0)(230=-1,-1,-1,-1,0)(234=-1,-1,-1,-1,0)(231=-1,-1,-1,-1,0)(232=-1,-1,-1,-1,0)(233=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(151=-1,-1,-1,-1,0)</Name>
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</SetRegEntry>
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<SetRegEntry>
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<Number>0</Number>
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@ -142,103 +142,103 @@
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<Filename>.\FonctionEtape.asm</Filename>
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<Filename>.\Principale.asm</Filename>
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<ExecCommand></ExecCommand>
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<Filename>.\FonctionEtape.asm</Filename>
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<Filename>.\Principale.asm</Filename>
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<BreakIfRCount>1</BreakIfRCount>
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<Filename>.\Principale.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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<Expression>\\Simu_Etape0\Principale.asm\56</Expression>
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</Bp>
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<Bp>
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<Type>0</Type>
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<LineNumber>91</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>134222508</Address>
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<Filename>.\Principale.asm</Filename>
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<BreakIfRCount>1</BreakIfRCount>
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<Filename>.\FonctionEtape2.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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<Expression>\\Simu_Etape0\FonctionEtape2.asm\118</Expression>
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<Bp>
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<LineNumber>80</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>134222362</Address>
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<ByteObject>0</ByteObject>
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<HtxType>0</HtxType>
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<ManyObjects>0</ManyObjects>
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<SizeOfObject>0</SizeOfObject>
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<BreakByAccess>0</BreakByAccess>
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<BreakIfRCount>0</BreakIfRCount>
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<Filename>.\Principale.asm</Filename>
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<BreakIfRCount>1</BreakIfRCount>
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<Filename>.\FonctionEtape.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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<Expression>\\Simu_Etape0\FonctionEtape.asm\80</Expression>
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</Bp>
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<Bp>
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<Number>5</Number>
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<Type>0</Type>
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<LineNumber>57</LineNumber>
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<LineNumber>150</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>0</Address>
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<Address>134222588</Address>
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<ByteObject>0</ByteObject>
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<HtxType>0</HtxType>
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<ManyObjects>0</ManyObjects>
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<BreakByAccess>0</BreakByAccess>
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<BreakIfRCount>0</BreakIfRCount>
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<Filename>.\Principale.asm</Filename>
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<BreakIfRCount>1</BreakIfRCount>
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<Filename>.\FonctionEtape2.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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<Expression>\\Simu_Etape0\FonctionEtape2.asm\150</Expression>
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</Bp>
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<Bp>
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<Number>6</Number>
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<Type>0</Type>
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<LineNumber>56</LineNumber>
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<LineNumber>91</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>0</Address>
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<ByteObject>0</ByteObject>
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@ -247,14 +247,14 @@
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<SizeOfObject>0</SizeOfObject>
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<BreakByAccess>0</BreakByAccess>
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<BreakIfRCount>0</BreakIfRCount>
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<Filename>.\Principale.asm</Filename>
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<Filename>.\FonctionEtape.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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</Bp>
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<Bp>
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<Number>7</Number>
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<Type>0</Type>
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<LineNumber>80</LineNumber>
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<LineNumber>92</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>0</Address>
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<ByteObject>0</ByteObject>
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@ -270,7 +270,7 @@
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<Bp>
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<Number>8</Number>
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<Type>0</Type>
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<LineNumber>87</LineNumber>
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<LineNumber>82</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>0</Address>
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<ByteObject>0</ByteObject>
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@ -286,7 +286,7 @@
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<Bp>
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<Number>9</Number>
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<Type>0</Type>
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<LineNumber>117</LineNumber>
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<LineNumber>93</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>0</Address>
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<ByteObject>0</ByteObject>
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@ -295,14 +295,14 @@
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<SizeOfObject>0</SizeOfObject>
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<BreakByAccess>0</BreakByAccess>
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<BreakIfRCount>0</BreakIfRCount>
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<Filename>.\FonctionEtape2.asm</Filename>
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<Filename>.\Principale.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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</Bp>
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<Bp>
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<Number>10</Number>
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<Type>0</Type>
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<LineNumber>118</LineNumber>
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<LineNumber>94</LineNumber>
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<EnabledFlag>1</EnabledFlag>
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<Address>0</Address>
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<ByteObject>0</ByteObject>
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@ -311,7 +311,7 @@
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<SizeOfObject>0</SizeOfObject>
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<BreakByAccess>0</BreakByAccess>
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<BreakIfRCount>0</BreakIfRCount>
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<Filename>.\FonctionEtape2.asm</Filename>
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<Filename>.\Principale.asm</Filename>
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<ExecCommand></ExecCommand>
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<Expression></Expression>
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</Bp>
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@ -320,7 +320,7 @@
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<Mm>
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<WinNumber>1</WinNumber>
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<SubType>0</SubType>
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<ItemText>0x20000000</ItemText>
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<ItemText>0x40021000</ItemText>
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<AccSizeX>0</AccSizeX>
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</Mm>
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</MemoryWindow1>
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@ -342,7 +342,7 @@
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<DebugFlag>
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<trace>0</trace>
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<periodic>1</periodic>
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<aLwin>0</aLwin>
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<aLwin>1</aLwin>
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<aCover>0</aCover>
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<aSer1>0</aSer1>
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<aSer2>0</aSer2>
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@ -350,13 +350,13 @@
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<viewmode>1</viewmode>
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<vrSel>0</vrSel>
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<aSym>0</aSym>
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<aTbox>0</aTbox>
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<aTbox>1</aTbox>
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<AscS1>0</AscS1>
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<AscS2>0</AscS2>
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<AscS3>0</AscS3>
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<aSer3>0</aSer3>
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<eProf>0</eProf>
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<aLa>0</aLa>
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<aLa>1</aLa>
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<aPa1>0</aPa1>
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<AscS4>0</AscS4>
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<aSer4>0</aSer4>
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@ -382,12 +382,12 @@
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<Wi>
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<IntNumber>0</IntNumber>
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<FirstString>(portA & 0x20 & 0x20) >> 0</FirstString>
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<SecondString>FF000000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078323000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000E03F0800000000000000000000000000000000000000E4120008</SecondString>
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<SecondString>FF000000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078323000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000E03F0A00000000000000000000000000000000000000E4120008</SecondString>
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</Wi>
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<Wi>
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<IntNumber>1</IntNumber>
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<FirstString>(portA & 0x80 & 0x80) >> 0</FirstString>
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<SecondString>00800000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078383000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000002000000000000000000E03F080000000000000000000000000000000000000062120008</SecondString>
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<SecondString>00800000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078383000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000002000000000000000000E03F0A0000000000000000000000000000000000000062120008</SecondString>
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</Wi>
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</LogicAnalyzers>
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<DebugDescription>
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@ -657,7 +657,7 @@
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<Group>
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<GroupName>::Device</GroupName>
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<tvExp>0</tvExp>
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<tvExp>1</tvExp>
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<tvExpOptDlg>0</tvExpOptDlg>
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<cbSel>0</cbSel>
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<RteFlg>1</RteFlg>
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@ -53,7 +53,9 @@
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main PROC
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;*******************************************************************************
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LDR R4, [pc,#-2124] ;***********************************************
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MOV R5, #1 ;RetroEngineering : 0x40021000 << 18 -> Argument ?
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STR R5,[R4,#0x18] ;***********************************************
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BL Init_Cible;
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;*******************************************************************************
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; ETAPE 2
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24
README.md
24
README.md
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@ -13,7 +13,29 @@ Chaque fonction prendra des arguments de R0 à R3 (avec R3 étant une référenc
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## Main
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Le main pour l'instant ne fait qu'appeler DriverGlobal.
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La première chose pour l'étape 2 est de mettre l'argument de Init_Cible à 1. Malheuresement cette partie étant précompilé, il n'est pas possible de modifier directement les variables qu'il lit dans la pile. En effet en lisant les premières lignes nous pouvons appercevoir quelques lectures de variables :
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```assembly
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Init_Cible PROC
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PUSH {R4-R6}
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MOV R4,R0
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LDR R0,[pc,#212] ; @0x080009A4
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LDR R0,[R0,#0x18] ; On lit dans 0x40021000 la variable en 0x18
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ORR R0,R0,#0x0C ; On force la valeur 0x0C dans R0
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ENDP
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```
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Visiblement, d'après la librairie STM32 0x40021000 correspond au RCC, plus précisement au APB2ENR *(décalé de 24 octets.)* :
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```c
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RCC_TypeDef * rccPointer = RCC ; //0x40021000
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volatile uint32_t * apb2enrValue = &(RCC->APB2ENR); //0x40021018
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```
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En réalité j'ai par la suite changé ce paramètre en 1. Avec la valeur forcée en 0x0C, cela va donner 0x0D soit 1101. D'après la datasheet cela devrait activer la clock sur le GPIOA et B. le 0x01 lui va activer le AFIO qui est étrange ? L'argument de la fonction ne serait donc pas cette variable, qui est juste globale. Mais je ne vois pas d'autre solution pour le moment.. En effet bien que R4 et R6 sont égaux à 0 dès le lancement de cette fonction, elles sont directement modifiée pour lire des variables stockées dans le tas.
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(Par la suite le Timer2,3,4 sont allumés (APB1ENR |= 0x07))
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On appelle ensuite le DriverGlobal
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## Variables globales
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