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UE+LibX86: Support bigger reads and writes

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This commit is contained in:
Hendiadyoin1 2021-04-10 23:29:32 +02:00 • committed by Andreas Kling
parent a99812633b
commit f1957bb86b
11 changed files with 316 additions and 4 deletions
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37
Userland/DevTools/UserspaceEmulator/SoftCPU.cpp
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@ -133,6 +133,25 @@ ValueWithShadow<u64> SoftCPU::read_memory64(X86::LogicalAddress address)
return value;
}
ValueWithShadow<u128> SoftCPU::read_memory128(X86::LogicalAddress address)
{
VERIFY(address.selector() == 0x1b || address.selector() == 0x23 || address.selector() == 0x2b);
auto value = m_emulator.mmu().read128(address);
#if MEMORY_DEBUG
outln("\033[36;1mread_memory128: @{:04x}:{:08x} -> {:032x} ({:032x})\033[0m", address.selector(), address.offset(), value, value.shadow());
#endif
return value;
}
ValueWithShadow<u256> SoftCPU::read_memory256(X86::LogicalAddress address)
{
VERIFY(address.selector() == 0x1b || address.selector() == 0x23 || address.selector() == 0x2b);
auto value = m_emulator.mmu().read256(address);
#if MEMORY_DEBUG
outln("\033[36;1mread_memory256: @{:04x}:{:08x} -> {:064x} ({:064x})\033[0m", address.selector(), address.offset(), value, value.shadow());
#endif
return value;
}
void SoftCPU::write_memory8(X86::LogicalAddress address, ValueWithShadow<u8> value)
{
VERIFY(address.selector() == 0x23 || address.selector() == 0x2b);
@ -161,6 +180,24 @@ void SoftCPU::write_memory64(X86::LogicalAddress address, ValueWithShadow<u64> v
m_emulator.mmu().write64(address, value);
}
void SoftCPU::write_memory128(X86::LogicalAddress address, ValueWithShadow<u128> value)
{
VERIFY(address.selector() == 0x23 || address.selector() == 0x2b);
#if MEMORY_DEBUG
outln("\033[36;1mwrite_memory128: @{:04x}:{:08x} <- {:032x} ({:032x})\033[0m", address.selector(), address.offset(), value, value.shadow());
#endif
m_emulator.mmu().write128(address, value);
}
void SoftCPU::write_memory256(X86::LogicalAddress address, ValueWithShadow<u256> value)
{
VERIFY(address.selector() == 0x23 || address.selector() == 0x2b);
#if MEMORY_DEBUG
outln("\033[36;1mwrite_memory256: @{:04x}:{:08x} <- {:064x} ({:064x})\033[0m", address.selector(), address.offset(), value, value.shadow());
#endif
m_emulator.mmu().write256(address, value);
}
void SoftCPU::push_string(const StringView& string)
{
size_t space_to_allocate = round_up_to_power_of_two(string.length() + 1, 16);