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Initialisation des registres de la VM

This commit is contained in:
Horde Nicolas 2021-07-04 12:35:46 +02:00
parent 734b7df66b
commit 0f81376eec
1 changed files with 94 additions and 24 deletions
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116
test.cpp
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@ -2,6 +2,7 @@
#include <iostream> #include <iostream>
#include <string> #include <string>
#include <sstream> #include <sstream>
#include <iomanip>
#include <keystone/keystone.h> #include <keystone/keystone.h>
#include <unicorn/unicorn.h> #include <unicorn/unicorn.h>
#include <capstone/capstone.h> #include <capstone/capstone.h>
@ -130,6 +131,7 @@ class Goal {
std::string title; std::string title;
std::string description; std::string description;
std::string help; std::string help;
std::string code;
State init; State init;
State goal; State goal;
}; };
@ -250,6 +252,7 @@ void TextWindow::adjustSize()
scrolltext.setGeometry (FPoint{1, 2}, FSize(getWidth(), getHeight() - 1)); scrolltext.setGeometry (FPoint{1, 2}, FSize(getWidth(), getHeight() - 1));
} }
//---------------------------------------------------------------------- //----------------------------------------------------------------------
// class VMEngine // class VMEngine
//---------------------------------------------------------------------- //----------------------------------------------------------------------
@ -264,7 +267,7 @@ class VMEngine
uc_engine *uc; uc_engine *uc;
uc_err err; uc_err err;
TextWindow *log; TextWindow *log;
std::ostringstream out; std::stringstream out;
}; };
VMEngine::VMEngine(TextWindow *log) : log(log) VMEngine::VMEngine(TextWindow *log) : log(log)
@ -278,9 +281,93 @@ VMEngine::VMEngine(TextWindow *log) : log(log)
log->append("Initialisation de l'ordinateur IA86"); log->append("Initialisation de l'ordinateur IA86");
} }
//IP DI SI BP SP BX DX CX AX
void VMEngine::Configure(State *init) void VMEngine::Configure(State *init)
{ {
log->append("Configuration initiale de l'ordinateur IA86"); out << "Configuration initiale de l'ordinateur IA86:\n ";
err = uc_reg_write(uc, UC_X86_REG_EIP, &init->dump.regs.eip);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: EIP");
else
if (init->dump.regs.eip != 0x00000000)
if ((init->dump.regs.eip & 0xFFFF0000) == 0x00000000)
out << " IP=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.ip << " ";
else
out << "EIP=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.eip << " ";
err = uc_reg_write(uc, UC_X86_REG_EDI, &init->dump.regs.edi);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: EDI");
else
if (init->dump.regs.edi != 0x00000000)
if ((init->dump.regs.edi & 0xFFFF0000) == 0x00000000)
out << " DI=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.di << " ";
else
out << "EDI=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.edi << " ";
err = uc_reg_write(uc, UC_X86_REG_ESI, &init->dump.regs.esi);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: ESE");
else
if (init->dump.regs.esi != 0x00000000)
if ((init->dump.regs.esi & 0xFFFF0000) == 0x00000000)
out << " SI=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.si << " ";
else
out << "ESI=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.esi << " ";
err = uc_reg_write(uc, UC_X86_REG_EBP, &init->dump.regs.ebp);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: EBP");
else
if (init->dump.regs.ebp != 0x00000000)
if ((init->dump.regs.ebp & 0xFFFF0000) == 0x00000000)
out << " BP=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.bp << " ";
else
out << "EBP=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.ebp << " ";
err = uc_reg_write(uc, UC_X86_REG_ESP, &init->dump.regs.esp);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: ESP");
else
if (init->dump.regs.esp != 0x00000000)
if ((init->dump.regs.esp & 0xFFFF0000) == 0x00000000)
out << " SP=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.sp << " ";
else
out << "ESP=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.esp << " ";
err = uc_reg_write(uc, UC_X86_REG_EBX, &init->dump.regs.ebx);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: EBX");
else
if (init->dump.regs.ebx != 0x00000000)
if ((init->dump.regs.ebx & 0xFFFF0000) == 0x00000000)
out << " BX=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.bx << " ";
else
out << "EBX=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.ebx << " ";
err = uc_reg_write(uc, UC_X86_REG_EDX, &init->dump.regs.edx);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: EDX");
else
if (init->dump.regs.edx != 0x00000000)
if ((init->dump.regs.edx & 0xFFFF0000) == 0x00000000)
out << " DX=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.dx << " ";
else
out << "EDX=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.edx << " ";
err = uc_reg_write(uc, UC_X86_REG_ECX, &init->dump.regs.ecx);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: ECX");
else
if (init->dump.regs.ecx != 0x00000000)
if ((init->dump.regs.ecx & 0xFFFF0000) == 0x00000000)
out << " CX=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.cx << " ";
else
out << "ECX=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.ecx << " ";
err = uc_reg_write(uc, UC_X86_REG_EAX, &init->dump.regs.eax);
if (err != UC_ERR_OK)
log->append("Impossible d'initialiser le registre: EAX");
else
if (init->dump.regs.eax != 0x00000000)
if ((init->dump.regs.eax & 0xFFFF0000) == 0x00000000)
out << " AX=" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << init->dump.regs.ax << " ";
else
out << "EAX=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.eax << " ";
log->append(out.str());
} }
void VMEngine::Run() void VMEngine::Run()
@ -290,24 +377,7 @@ void VMEngine::Run()
/*uc_mem_map(uc, ADDRESS, 1 * 1024 * 1024, UC_PROT_ALL); /*uc_mem_map(uc, ADDRESS, 1 * 1024 * 1024, UC_PROT_ALL);
if (uc_mem_write(uc, ADDRESS, encode, sizecode)) { if (uc_mem_write(uc, ADDRESS, encode, sizecode)) {
printf("Failed to write emulation code to memory, quit!\n"); error=uc_emu_start(uc, ADDRESS, ADDRESS + sizecode, 0, 0);*/
return -1;
}
uc_reg_write(uc, UC_X86_REG_CX, &r_cx);
uc_reg_write(uc, UC_X86_REG_DX, &r_dx);
uc_reg_read(uc, UC_X86_REG_IP, &r_ip);
error=uc_emu_start(uc, ADDRESS, ADDRESS + sizecode, 0, 0);
if (error) {
printf("Failed on uc_emu_start() with error returned %u: %s\n",
err, uc_strerror(error));
}
printf("Emulation done. Below is the CPU context\n");
uc_reg_read(uc, UC_X86_REG_CX, &r_cx);
uc_reg_read(uc, UC_X86_REG_DX, &r_dx);
uc_reg_read(uc, UC_X86_REG_IP, &r_ip);
printf(">>> CX = 0x%x\n", r_cx);
printf(">>> DX = 0x%x\n", r_dx);
printf(">>> IP = 0x%x\n", r_ip);*/
//---------------------------------------------------------------------- //----------------------------------------------------------------------
// class Menu // class Menu
@ -465,11 +535,11 @@ void Menu::loadGoal(Goal *g, VMEngine *vm)
Goal goals[]={ Goal goals[]={
{ {
"L'instruction MOV et les registres","Le but est de bouger du registre AX au registre BX, l' ensemble des données", "Aide....", "L'instruction MOV et les registres","Le but est de bouger du registre AX au registre BX, l' ensemble des données", "Aide....", "mov ax,immédiat",
{ {
{ {
{}, {},
{}, {.bx=0x0002,.ax=0x1920},
0x00000000 0x00000000
}, },
{} {}
@ -503,7 +573,7 @@ int main (int argc, char* argv[])
log.setText ("Journaux"); log.setText ("Journaux");
log.setGeometry ( FPoint { 30, 10 }, FSize{60, 12} ); log.setGeometry ( FPoint { 30, 10 }, FSize{60, 12} );
log.setResizeable(); log.setResizeable();
log.append("lancement des journaux"); log.append("Lancement des journaux");
log.show(); log.show();
finalcut::FWidget::setMainWidget (&main_dlg); finalcut::FWidget::setMainWidget (&main_dlg);
main_dlg.show(); main_dlg.show();