Lay down basic disassembler

src/backend/core/Disassembler.hpp

@@ -0,0 +1,47 @@
+#pragma once
+#include <capstone/capstone.h>
+#include <utils/log.hpp>
+#include <utils/MemoryHelpers.hpp>
+#include <portable_endian_bswap.h>
+#include <array>
+
+struct Disassembler {
+  struct DisassemblyResult {
+    bool success = false;
+    std::string full;
+    u64 address;
+    std::string mnemonic;
+    std::array<std::string, 3> ops{};
+  };
+
+  static Disassembler &instance(bool rsp = false) {
+    static Disassembler ret(rsp);
+    return ret;
+  }
+
+  DisassemblyResult Disassemble(u32 address, u32 instruction) {
+    return details ? DisassembleDetailed(address, instruction) : DisassembleSimple(address, instruction);
+  }
+
+  ~Disassembler() { cs_close(&handle); }
+
+private:
+  DisassemblyResult DisassembleDetailed(u32 address, u32 instruction);
+  DisassemblyResult DisassembleSimple(u32 address, u32 instruction);
+
+  Disassembler(bool rsp) : rsp(rsp) {
+    if (cs_open(CS_ARCH_MIPS, static_cast<cs_mode>((rsp ? CS_MODE_32 : CS_MODE_64) | CS_MODE_BIG_ENDIAN), &handle) !=
+        CS_ERR_OK) {
+      Util::panic("Could not initialize {} disassembler!", rsp ? "RSP" : "CPU");
+    }
+
+    if (cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON) != CS_ERR_OK) {
+      Util::warn("Could not enable disassembler's details!");
+      details = false;
+    }
+  }
+
+  bool rsp = false;
+  bool details = true;
+  csh handle;
+};