mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 03:57:43 +00:00
UserspaceEmulator: Add an initial stack and implement PUSH/POP reg32
Programs now start out with a 64 KB stack at 0x10000000. :^)
This commit is contained in:
parent
d5c46cf528
commit
d10765bec3
3 changed files with 99 additions and 5 deletions
|
@ -51,6 +51,34 @@ void SoftCPU::dump() const
|
|||
printf("o=%u s=%u z=%u a=%u p=%u c=%u\n", m_of, m_sf, m_zf, m_af, m_pf, m_cf);
|
||||
}
|
||||
|
||||
u32 SoftCPU::read_memory32(X86::LogicalAddress address)
|
||||
{
|
||||
ASSERT(address.selector() == 0x20);
|
||||
auto value = m_emulator.mmu().read32(address.offset());
|
||||
printf("\033[36;1mread_memory32: @%08x -> %08x\033[0m\n", address.offset(), value);
|
||||
return value;
|
||||
}
|
||||
|
||||
void SoftCPU::write_memory32(X86::LogicalAddress address, u32 value)
|
||||
{
|
||||
ASSERT(address.selector() == 0x20);
|
||||
printf("\033[35;1mwrite_memory32: @%08x <- %08x\033[0m\n", address.offset(), value);
|
||||
m_emulator.mmu().write32(address.offset(), value);
|
||||
}
|
||||
|
||||
void SoftCPU::push32(u32 value)
|
||||
{
|
||||
m_esp -= sizeof(value);
|
||||
write_memory32({ get_ss(), get_esp() }, value);
|
||||
}
|
||||
|
||||
u32 SoftCPU::pop32()
|
||||
{
|
||||
auto value = read_memory32({ get_ss(), get_esp() });
|
||||
m_esp += sizeof(value);
|
||||
return value;
|
||||
}
|
||||
|
||||
void SoftCPU::AAA(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::AAD(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::AAM(const X86::Instruction&) { TODO(); }
|
||||
|
@ -346,7 +374,12 @@ void SoftCPU::POP_RM16(const X86::Instruction&) { TODO(); }
|
|||
void SoftCPU::POP_RM32(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::POP_SS(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::POP_reg16(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::POP_reg32(const X86::Instruction&) { TODO(); }
|
||||
|
||||
void SoftCPU::POP_reg32(const X86::Instruction& insn)
|
||||
{
|
||||
*m_reg32_table[insn.register_index()] = pop32();
|
||||
}
|
||||
|
||||
void SoftCPU::PUSHA(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::PUSHAD(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::PUSHF(const X86::Instruction&) { TODO(); }
|
||||
|
@ -364,7 +397,12 @@ void SoftCPU::PUSH_imm16(const X86::Instruction&) { TODO(); }
|
|||
void SoftCPU::PUSH_imm32(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::PUSH_imm8(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::PUSH_reg16(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::PUSH_reg32(const X86::Instruction&) { TODO(); }
|
||||
|
||||
void SoftCPU::PUSH_reg32(const X86::Instruction& insn)
|
||||
{
|
||||
push32(*m_reg32_table[insn.register_index()]);
|
||||
}
|
||||
|
||||
void SoftCPU::RCL_RM16_1(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::RCL_RM16_CL(const X86::Instruction&) { TODO(); }
|
||||
void SoftCPU::RCL_RM16_imm8(const X86::Instruction&) { TODO(); }
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue