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1.6 KiB

#include <vminstrs.hpp>
//Loads CR0 onto the stack
namespace vm::instrs {
profiler_t lcr0 = {
"LCR0",
mnemonic_t::lcr0,
{
// MOV REG, CR0
[](const zydis_reg_t vip, const zydis_reg_t vsp,
const zydis_decoded_instr_t& instr) -> bool {
return instr.mnemonic == ZYDIS_MNEMONIC_MOV &&
instr.operands[0].type == ZYDIS_OPERAND_TYPE_REGISTER &&
instr.operands[1].type == ZYDIS_OPERAND_TYPE_REGISTER &&
instr.operands[1].reg.value == ZYDIS_REGISTER_CR0;
},
// SUB VSP, OFFSET
[](const zydis_reg_t vip, const zydis_reg_t vsp,
const zydis_decoded_instr_t& instr) -> bool {
return instr.mnemonic == ZYDIS_MNEMONIC_SUB &&
instr.operands[0].type == ZYDIS_OPERAND_TYPE_REGISTER &&
instr.operands[0].reg.value == vsp &&
instr.operands[1].type == ZYDIS_OPERAND_TYPE_IMMEDIATE;
},
// MOV [VSP], REG
[](const zydis_reg_t vip, const zydis_reg_t vsp,
const zydis_decoded_instr_t& instr) -> bool {
return instr.mnemonic == ZYDIS_MNEMONIC_MOV &&
instr.operands[0].type == ZYDIS_OPERAND_TYPE_MEMORY &&
instr.operands[0].mem.base == vsp &&
instr.operands[0].mem.index == ZYDIS_REGISTER_NONE &&
instr.operands[1].type == ZYDIS_OPERAND_TYPE_REGISTER &&
instr.operands[1].reg.value != vsp;
}
},
[](zydis_reg_t& vip, zydis_reg_t& vsp,
hndlr_trace_t& hndlr) -> std::optional<vinstr_t> {
vinstr_t res{mnemonic_t::lcr0};
res.imm.has_imm = false;
res.stack_size = 64;
return res;
}
};
}