INSA/assembly_project
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Etape 3 #1

Merged
yoboujon merged 29 commits from etape_3 into main 2023-05-29 22:57:47 +02:00
Conversation 0 Commits 29 Files changed 78 +70 -46
3 changed files with 70 additions and 46 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files
Showing only changes of commit f42a0b0b7e - Show all commits

88
Etape_2.uvoptx
View file

@ -125,7 +125,7 @@
<SetRegEntry> <SetRegEntry>
<Number>0</Number> <Number>0</Number>
<Key>DLGDARM</Key> <Key>DLGDARM</Key>
<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> <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>
</SetRegEntry> </SetRegEntry>
<SetRegEntry> <SetRegEntry>
<Number>0</Number> <Number>0</Number>
@ -142,103 +142,103 @@
<Bp> <Bp>
<Number>0</Number> <Number>0</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>92</LineNumber> <LineNumber>89</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>134222334</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
<HtxType>0</HtxType> <HtxType>0</HtxType>
<ManyObjects>0</ManyObjects> <ManyObjects>0</ManyObjects>
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>1</BreakIfRCount>
<Filename>.\FonctionEtape.asm</Filename> <Filename>.\Principale.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression>\\Simu_Etape0\Principale.asm\89</Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>1</Number> <Number>1</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>91</LineNumber> <LineNumber>59</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>134222326</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
<HtxType>0</HtxType> <HtxType>0</HtxType>
<ManyObjects>0</ManyObjects> <ManyObjects>0</ManyObjects>
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>1</BreakIfRCount>
<Filename>.\FonctionEtape.asm</Filename> <Filename>.\Principale.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression>\\Simu_Etape0\Principale.asm\59</Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>2</Number> <Number>2</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>92</LineNumber> <LineNumber>56</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>134222316</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
<HtxType>0</HtxType> <HtxType>0</HtxType>
<ManyObjects>0</ManyObjects> <ManyObjects>0</ManyObjects>
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>1</BreakIfRCount>
<Filename>.\Principale.asm</Filename> <Filename>.\Principale.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression>\\Simu_Etape0\Principale.asm\56</Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>3</Number> <Number>3</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>91</LineNumber> <LineNumber>118</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>134222508</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
<HtxType>0</HtxType> <HtxType>0</HtxType>
<ManyObjects>0</ManyObjects> <ManyObjects>0</ManyObjects>
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>1</BreakIfRCount>
<Filename>.\Principale.asm</Filename> <Filename>.\FonctionEtape2.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression>\\Simu_Etape0\FonctionEtape2.asm\118</Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>4</Number> <Number>4</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>80</LineNumber> <LineNumber>80</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>134222362</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
<HtxType>0</HtxType> <HtxType>0</HtxType>
<ManyObjects>0</ManyObjects> <ManyObjects>0</ManyObjects>
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>1</BreakIfRCount>
<Filename>.\Principale.asm</Filename> <Filename>.\FonctionEtape.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression>\\Simu_Etape0\FonctionEtape.asm\80</Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>5</Number> <Number>5</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>57</LineNumber> <LineNumber>150</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>134222588</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
<HtxType>0</HtxType> <HtxType>0</HtxType>
<ManyObjects>0</ManyObjects> <ManyObjects>0</ManyObjects>
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>1</BreakIfRCount>
<Filename>.\Principale.asm</Filename> <Filename>.\FonctionEtape2.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression>\\Simu_Etape0\FonctionEtape2.asm\150</Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>6</Number> <Number>6</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>56</LineNumber> <LineNumber>91</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>0</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
@ -247,14 +247,14 @@
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>0</BreakIfRCount>
<Filename>.\Principale.asm</Filename> <Filename>.\FonctionEtape.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression></Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>7</Number> <Number>7</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>80</LineNumber> <LineNumber>92</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>0</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
@ -270,7 +270,7 @@
<Bp> <Bp>
<Number>8</Number> <Number>8</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>87</LineNumber> <LineNumber>82</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>0</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
@ -286,7 +286,7 @@
<Bp> <Bp>
<Number>9</Number> <Number>9</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>117</LineNumber> <LineNumber>93</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>0</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
@ -295,14 +295,14 @@
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>0</BreakIfRCount>
<Filename>.\FonctionEtape2.asm</Filename> <Filename>.\Principale.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression></Expression>
</Bp> </Bp>
<Bp> <Bp>
<Number>10</Number> <Number>10</Number>
<Type>0</Type> <Type>0</Type>
<LineNumber>118</LineNumber> <LineNumber>94</LineNumber>
<EnabledFlag>1</EnabledFlag> <EnabledFlag>1</EnabledFlag>
<Address>0</Address> <Address>0</Address>
<ByteObject>0</ByteObject> <ByteObject>0</ByteObject>
@ -311,7 +311,7 @@
<SizeOfObject>0</SizeOfObject> <SizeOfObject>0</SizeOfObject>
<BreakByAccess>0</BreakByAccess> <BreakByAccess>0</BreakByAccess>
<BreakIfRCount>0</BreakIfRCount> <BreakIfRCount>0</BreakIfRCount>
<Filename>.\FonctionEtape2.asm</Filename> <Filename>.\Principale.asm</Filename>
<ExecCommand></ExecCommand> <ExecCommand></ExecCommand>
<Expression></Expression> <Expression></Expression>
</Bp> </Bp>
@ -320,7 +320,7 @@
<Mm> <Mm>
<WinNumber>1</WinNumber> <WinNumber>1</WinNumber>
<SubType>0</SubType> <SubType>0</SubType>
<ItemText>0x20000000</ItemText> <ItemText>0x40021000</ItemText>
<AccSizeX>0</AccSizeX> <AccSizeX>0</AccSizeX>
</Mm> </Mm>
</MemoryWindow1> </MemoryWindow1>
@ -342,7 +342,7 @@
<DebugFlag> <DebugFlag>
<trace>0</trace> <trace>0</trace>
<periodic>1</periodic> <periodic>1</periodic>
<aLwin>0</aLwin> <aLwin>1</aLwin>
<aCover>0</aCover> <aCover>0</aCover>
<aSer1>0</aSer1> <aSer1>0</aSer1>
<aSer2>0</aSer2> <aSer2>0</aSer2>
@ -350,13 +350,13 @@
<viewmode>1</viewmode> <viewmode>1</viewmode>
<vrSel>0</vrSel> <vrSel>0</vrSel>
<aSym>0</aSym> <aSym>0</aSym>
<aTbox>0</aTbox> <aTbox>1</aTbox>
<AscS1>0</AscS1> <AscS1>0</AscS1>
<AscS2>0</AscS2> <AscS2>0</AscS2>
<AscS3>0</AscS3> <AscS3>0</AscS3>
<aSer3>0</aSer3> <aSer3>0</aSer3>
<eProf>0</eProf> <eProf>0</eProf>
<aLa>0</aLa> <aLa>1</aLa>
<aPa1>0</aPa1> <aPa1>0</aPa1>
<AscS4>0</AscS4> <AscS4>0</AscS4>
<aSer4>0</aSer4> <aSer4>0</aSer4>
@ -382,12 +382,12 @@
<Wi> <Wi>
<IntNumber>0</IntNumber> <IntNumber>0</IntNumber>
<FirstString>(portA &amp; 0x20 &amp; 0x20) &gt;&gt; 0</FirstString> <FirstString>(portA &amp; 0x20 &amp; 0x20) &gt;&gt; 0</FirstString>
<SecondString>FF000000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078323000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000E03F0800000000000000000000000000000000000000E4120008</SecondString> <SecondString>FF000000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078323000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000E03F0A00000000000000000000000000000000000000E4120008</SecondString>
</Wi> </Wi>
<Wi> <Wi>
<IntNumber>1</IntNumber> <IntNumber>1</IntNumber>
<FirstString>(portA &amp; 0x80 &amp; 0x80) &gt;&gt; 0</FirstString> <FirstString>(portA &amp; 0x80 &amp; 0x80) &gt;&gt; 0</FirstString>
<SecondString>00800000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078383000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000002000000000000000000E03F080000000000000000000000000000000000000062120008</SecondString> <SecondString>00800000000000000000000000000000E0FFEF4001000000000000000000000000000000706F7274412026203078383000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000002000000000000000000E03F0A0000000000000000000000000000000000000062120008</SecondString>
</Wi> </Wi>
</LogicAnalyzers> </LogicAnalyzers>
<DebugDescription> <DebugDescription>
@ -657,7 +657,7 @@
<Group> <Group>
<GroupName>::Device</GroupName> <GroupName>::Device</GroupName>
<tvExp>0</tvExp> <tvExp>1</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
<cbSel>0</cbSel> <cbSel>0</cbSel>
<RteFlg>1</RteFlg> <RteFlg>1</RteFlg>

4
Principale.asm
View file

@ -53,7 +53,9 @@
main PROC main PROC
;******************************************************************************* ;*******************************************************************************
LDR R4, [pc,#-2124] ;***********************************************
MOV R5, #1 ;RetroEngineering : 0x40021000 << 18 -> Argument ?
STR R5,[R4,#0x18] ;***********************************************
BL Init_Cible; BL Init_Cible;
;******************************************************************************* ;*******************************************************************************
; ETAPE 2 ; ETAPE 2

24
README.md
View file

@ -13,7 +13,29 @@ Chaque fonction prendra des arguments de R0 à R3 (avec R3 étant une référenc
## Main ## Main
Le main pour l'instant ne fait qu'appeler DriverGlobal. 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 :
```assembly
Init_Cible PROC
PUSH {R4-R6}
MOV R4,R0
LDR R0,[pc,#212] ; @0x080009A4
LDR R0,[R0,#0x18] ; On lit dans 0x40021000 la variable en 0x18
ORR R0,R0,#0x0C ; On force la valeur 0x0C dans R0
ENDP
```
Visiblement, d'après la librairie STM32 0x40021000 correspond au RCC, plus précisement au APB2ENR *(décalé de 24 octets.)* :
```c
RCC_TypeDef * rccPointer = RCC ; //0x40021000
volatile uint32_t * apb2enrValue = &(RCC->APB2ENR); //0x40021018
```
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.
(Par la suite le Timer2,3,4 sont allumés (APB1ENR |= 0x07))
On appelle ensuite le DriverGlobal
## Variables globales ## Variables globales