adds disass functionality

src/vm/asmjit/helper_func.h

@@ -1,4 +1,5 @@
-
+#include <asmjit/asmjit.h>
+#include <iss/asmjit/jit_helper.h>
 
 x86::Mem get_reg_ptr(jit_holder& jh, unsigned idx) {
 
@@ -74,6 +75,7 @@ inline void write_reg_to_mem(jit_holder& jh, x86::Gp reg, unsigned idx) {
 
 void gen_instr_prologue(jit_holder& jh, addr_t pc) {
     auto& cc = jh.cc;
+    cc.mov(jh.pc, pc);
 
     cc.comment("\n//(*icount)++;");
     cc.inc(get_reg_ptr(jh, traits::ICOUNT));
@@ -534,4 +536,4 @@ inline void gen_write_mem(jit_holder& jh, mem_type_e type, uint64_t addr, int64_
     auto addr_reg = jh.cc.newUInt64();
     jh.cc.mov(addr_reg, addr);
     gen_write_mem(jh, type, addr_reg, val_reg, length);
-}
+}