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LibX86+UserspaceEmulator: Introduce AddressSize and OperandSize enums

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These replace the bools a32 and o32, which will make implementing
64-bit sizes possible. :^)
This commit is contained in:
Simon Wanner 2022-03-24 23:01:11 +01:00 • committed by Andreas Kling
parent 7cd43deb28
commit a7268c3c74
6 changed files with 276 additions and 152 deletions
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6
Userland/DevTools/UserspaceEmulator/Emulator.cpp
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@ -234,7 +234,7 @@ int Emulator::exec()
while (!m_shutdown) {
if (m_steps_til_pause) [[likely]] {
m_cpu->save_base_eip();
auto insn = X86::Instruction::from_stream(*m_cpu, true, true);
auto insn = X86::Instruction::from_stream(*m_cpu, X86::OperandSize::Size32, X86::AddressSize::Size32);
// Exec cycle
if constexpr (trace) {
outln("{:p} \033[33;1m{}\033[0m", m_cpu->base_eip(), insn.to_string(m_cpu->base_eip(), symbol_provider));
@ -301,7 +301,7 @@ void Emulator::handle_repl()
// FIXME: Function names (base, call, jump)
auto saved_eip = m_cpu->eip();
m_cpu->save_base_eip();
auto insn = X86::Instruction::from_stream(*m_cpu, true, true);
auto insn = X86::Instruction::from_stream(*m_cpu, X86::OperandSize::Size32, X86::AddressSize::Size32);
// FIXME: This does not respect inlining
// another way of getting the current function is at need
if (auto symbol = symbol_at(m_cpu->base_eip()); symbol.has_value()) {
@ -311,7 +311,7 @@ void Emulator::handle_repl()
outln("==> {}", create_instruction_line(m_cpu->base_eip(), insn));
for (int i = 0; i < 7; ++i) {
m_cpu->save_base_eip();
insn = X86::Instruction::from_stream(*m_cpu, true, true);
insn = X86::Instruction::from_stream(*m_cpu, X86::OperandSize::Size32, X86::AddressSize::Size32);
outln(" {}", create_instruction_line(m_cpu->base_eip(), insn));
}
// We don't want to increase EIP here, we just want the instructions