diff --git a/gen_input/templates/asmjit/CORENAME.cpp.gtl b/gen_input/templates/asmjit/CORENAME.cpp.gtl
index 3b5486f..e33b818 100644
--- a/gen_input/templates/asmjit/CORENAME.cpp.gtl
+++ b/gen_input/templates/asmjit/CORENAME.cpp.gtl
@@ -117,7 +117,36 @@ protected:
         return (from & mask) | ((from & sign_mask) ? ~mask : 0);
     }
 <%functions.each{ it.eachLine { %>
-    ${it}<%}%>
+    ${it}<%}
+}
+if(fcsr != null) {%>
+    x86_reg_t NaNBox16(jit_holder& jh , x86_reg_t NaNBox16_val){
+        x86::Compiler& cc = jh.cc;
+        if(static_cast<uint32_t>(traits::FLEN) == 16)
+            return gen_ext(cc, NaNBox16_val, traits::FLEN, false);
+        else {         
+            auto box = gen_operation(cc, bnot, (gen_ext(cc, 0, traits::FLEN, false)));
+            return gen_ext(cc, (gen_operation(jh.cc, bor, gen_ext(jh.cc, gen_operation(jh.cc, shl, box, 16), traits::FLEN, false), gen_ext(jh.cc, NaNBox16_val, traits::FLEN, false))), traits::FLEN, false);
+        } 
+    }
+    x86_reg_t NaNBox32(jit_holder& jh , x86_reg_t NaNBox32_val){
+        x86::Compiler& cc = jh.cc;
+        if(static_cast<uint32_t>(traits::FLEN) == 32)
+            return gen_ext(cc, NaNBox32_val, traits::FLEN, false);
+        else {         
+            auto box = gen_operation(cc, bnot, (gen_ext(cc, 0, /* we need to shift for 32 so need larger dt*/ 64, false)));
+            return gen_ext(cc, (gen_operation(jh.cc, bor, gen_ext(jh.cc, gen_operation(jh.cc, shl, box, 32), traits::FLEN, false), gen_ext(jh.cc, NaNBox32_val, traits::FLEN, false))), traits::FLEN, false);
+        } 
+    }
+    x86_reg_t NaNBox64(jit_holder& jh , x86_reg_t NaNBox64_val){
+        x86::Compiler& cc = jh.cc;
+        if(static_cast<uint32_t>(traits::FLEN) == 64)
+            return gen_ext(cc, NaNBox64_val, traits::FLEN, false);
+        else {         
+            auto box = gen_operation(cc, bnot, (gen_ext(cc, 0, /* we need to shift for 32 so need larger dt*/ 128, false)));
+            return gen_ext(cc, (gen_operation(jh.cc, bor, gen_ext(jh.cc, gen_operation(jh.cc, shl, box, 64), traits::FLEN, false), gen_ext(jh.cc, NaNBox64_val, traits::FLEN, false))), traits::FLEN, false);
+        } 
+    }
 <%}%>
 private:
     /****************************************************************************
@@ -226,8 +255,6 @@ continuation_e vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, jit_hold
     code_word_t instr = 0;
     phys_addr_t paddr(pc);
     auto *const data = (uint8_t *)&instr;
-    if(this->core.has_mmu())
-        paddr = this->core.virt2phys(pc);
     auto res = this->core.read(paddr, 4, data);
     if (res != iss::Ok)
         return ILLEGAL_FETCH;
diff --git a/gen_input/templates/llvm/CORENAME.cpp.gtl b/gen_input/templates/llvm/CORENAME.cpp.gtl
index c7f61dd..2a6b4e5 100644
--- a/gen_input/templates/llvm/CORENAME.cpp.gtl
+++ b/gen_input/templates/llvm/CORENAME.cpp.gtl
@@ -136,7 +136,28 @@ protected:
         return (from & mask) | ((from & sign_mask) ? ~mask : 0);
     }
 <%functions.each{ it.eachLine { %>
-    ${it}<%}%>
+    ${it}<%}
+}
+if(fcsr != null) {%>
+    Value* NaNBox16(BasicBlock* bb, Value* NaNBox16_val){
+        if(static_cast<uint32_t>(traits::FLEN) == 16)
+            return this->gen_ext(NaNBox16_val, traits::FLEN, false);
+        auto box = this->builder.CreateNot((this->gen_ext(0, 32, false)));
+        return this->gen_ext((this->builder.CreateOr(this->builder.CreateShl(this->gen_ext(box, traits::FLEN), 16), this->gen_ext(NaNBox16_val, traits::FLEN))), traits::FLEN, false);
+    }
+    Value* NaNBox32(BasicBlock* bb, Value* NaNBox32_val){
+        if(static_cast<uint32_t>(traits::FLEN) == 32)
+            return this->gen_ext(NaNBox32_val, traits::FLEN, false);
+        auto box = this->builder.CreateNot((this->gen_ext(0, 64, false)));
+        return this->gen_ext((this->builder.CreateOr(this->builder.CreateShl(this->gen_ext(box, traits::FLEN), 32), this->gen_ext(NaNBox32_val, traits::FLEN))), traits::FLEN, false);
+    }
+    Value* NaNBox64(BasicBlock* bb, Value* NaNBox64_val){
+        if(static_cast<uint32_t>(traits::FLEN) == 64)
+            return this->gen_ext(NaNBox64_val, traits::FLEN, false);
+        auto box = this->builder.CreateNot((this->gen_ext(0, 128, false)));
+        return this->gen_ext((this->builder.CreateOr(this->builder.CreateShl(this->gen_ext(box, traits::FLEN), 64), this->gen_ext(NaNBox64_val, traits::FLEN))), traits::FLEN, false);
+    }
+
 <%}%>
 private:
     /****************************************************************************
@@ -251,8 +272,6 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, BasicBlock *this_block)
     // const typename traits::addr_t upper_bits = ~traits::PGMASK;
     phys_addr_t paddr(pc);
     auto *const data = (uint8_t *)&instr;
-    if(this->core.has_mmu())
-        paddr = this->core.virt2phys(pc);
     auto res = this->core.read(paddr, 4, data);
     if (res != iss::Ok) 
         return std::make_tuple(ILLEGAL_FETCH, nullptr);
diff --git a/gen_input/templates/tcc/CORENAME.cpp.gtl b/gen_input/templates/tcc/CORENAME.cpp.gtl
index c4ff028..391cc50 100644
--- a/gen_input/templates/tcc/CORENAME.cpp.gtl
+++ b/gen_input/templates/tcc/CORENAME.cpp.gtl
@@ -139,7 +139,33 @@ if(fcsr != null) {%>
     }
 
 <%functions.each{ it.eachLine { %>
-    ${it}<%}%>
+    ${it}<%}
+}
+if(fcsr != null) {%>
+    value NaNBox16(tu_builder& tu, value NaNBox16_val){
+        if(static_cast<uint32_t>(traits::FLEN) == 16)
+            return tu.ext(NaNBox16_val, traits::FLEN, false);
+        else {         
+            auto box = tu.assignment(tu.logical_neg((tu.ext(0, 32, false))), traits::FLEN) ;
+            return tu.ext((tu.bitwise_or(tu.shl(box, 16), NaNBox16_val)), traits::FLEN, false);
+        } 
+    }
+    value NaNBox32(tu_builder& tu, value NaNBox32_val){
+        if(static_cast<uint32_t>(traits::FLEN) == 32)
+            return tu.ext(NaNBox32_val, traits::FLEN, false);
+        else {         
+            auto box = tu.assignment(tu.logical_neg((tu.ext(0, 64, false))), traits::FLEN) ;
+            return tu.ext((tu.bitwise_or(tu.shl(box, 32), NaNBox32_val)), traits::FLEN, false);
+        } 
+    }
+    value NaNBox64(tu_builder& tu, value NaNBox64_val){
+        if(static_cast<uint32_t>(traits::FLEN) == 32)
+            return tu.ext(NaNBox64_val, traits::FLEN, false);
+        else {         
+            auto box = tu.assignment(tu.logical_neg((tu.ext(0, 128, false))), traits::FLEN) ;
+            return tu.ext((tu.bitwise_or(tu.shl(box, 64), NaNBox64_val)), traits::FLEN, false);
+        } 
+    }
 <%}%>
 private:
     /****************************************************************************
@@ -181,6 +207,8 @@ private:
         this->gen_set_tval(tu, instr);
         <%instr.behavior.eachLine{%>${it}
         <%}%>
+        tu("(*icount)++;");
+        tu("(*instret)++;");
         tu.close_scope();
         vm_base<ARCH>::gen_sync(tu, POST_SYNC,${idx});
         gen_trap_check(tu);        
@@ -232,8 +260,6 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, tu_builder& tu) {
     enum {TRAP_ID=1<<16};
     code_word_t instr = 0;
     phys_addr_t paddr(pc);
-    if(this->core.has_mmu())
-        paddr = this->core.virt2phys(pc);
     auto res = this->core.read(paddr, 4, reinterpret_cast<uint8_t*>(&instr));
     if (res != iss::Ok)
         return ILLEGAL_FETCH;
@@ -278,34 +304,74 @@ template <typename ARCH> void vm_impl<ARCH>::add_prologue(tu_builder& tu){
     os << tu.add_reg_ptr("trap_state", arch::traits<ARCH>::TRAP_STATE, this->regs_base_ptr);
     os << tu.add_reg_ptr("pending_trap", arch::traits<ARCH>::PENDING_TRAP, this->regs_base_ptr);
     os << tu.add_reg_ptr("cycle", arch::traits<ARCH>::CYCLE, this->regs_base_ptr);
-<%if(fcsr != null) {%>
+<%if(fcsr != null) {
+    def flen = constants.find { it.name == 'FLEN' }?.value ?: 0
+    %>
     os << "uint32_t (*fget_flags)()=" << (uintptr_t)&fget_flags << ";\\n";
+
+    os << "uint16_t (*fadd_h)(uint16_t v1, uint16_t v2, uint8_t mode)=" << (uintptr_t)&fadd_h << ";\\n";
+    os << "uint16_t (*fsub_h)(uint16_t v1, uint16_t v2, uint8_t mode)=" << (uintptr_t)&fsub_h << ";\\n";
+    os << "uint16_t (*fmul_h)(uint16_t v1, uint16_t v2, uint8_t mode)=" << (uintptr_t)&fmul_h << ";\\n";
+    os << "uint16_t (*fdiv_h)(uint16_t v1, uint16_t v2, uint8_t mode)=" << (uintptr_t)&fdiv_h << ";\\n";
+    os << "uint16_t (*fsqrt_h)(uint16_t v1, uint8_t mode)=" << (uintptr_t)&fsqrt_h << ";\\n";
+    os << "uint16_t (*fcmp_h)(uint16_t v1, uint16_t v2, uint16_t op)=" << (uintptr_t)&fcmp_h << ";\\n";
+    os << "uint16_t (*fmadd_h)(uint16_t v1, uint16_t v2, uint16_t v3, uint16_t op, uint8_t mode)=" << (uintptr_t)&fmadd_h << ";\\n";
+    os << "uint16_t (*fsel_h)(uint16_t v1, uint16_t v2, uint16_t op)=" << (uintptr_t)&fsel_h << ";\\n";
+    os << "uint16_t (*fclass_h)(uint16_t v1)=" << (uintptr_t)&fclass_h << ";\\n";
+    os << "uint16_t (*unbox_h)(uint8_t FLEN, uint64_t v)=" << (uintptr_t)&unbox_h << ";\\n";
+
+    os << "uint32_t (*f16toi32)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f16toi32 << ";\\n";
+    os << "uint32_t (*f16toui32)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f16toui32 << ";\\n";
+    os << "uint16_t (*i32tof16)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&i32tof16 << ";\\n";
+    os << "uint16_t (*ui32tof16)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&ui32tof16 << ";\\n";
+    os << "uint64_t (*f16toi64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f16toi64 <<";\\n";
+    os << "uint64_t (*f16toui64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f16toui64 <<";\\n";
+    os << "uint16_t (*i64tof16)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&i64tof16 <<";\\n";
+    os << "uint16_t (*ui64tof16)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&ui64tof16 <<";\\n";
+
     os << "uint32_t (*fadd_s)(uint32_t v1, uint32_t v2, uint8_t mode)=" << (uintptr_t)&fadd_s << ";\\n";
     os << "uint32_t (*fsub_s)(uint32_t v1, uint32_t v2, uint8_t mode)=" << (uintptr_t)&fsub_s << ";\\n";
     os << "uint32_t (*fmul_s)(uint32_t v1, uint32_t v2, uint8_t mode)=" << (uintptr_t)&fmul_s << ";\\n";
     os << "uint32_t (*fdiv_s)(uint32_t v1, uint32_t v2, uint8_t mode)=" << (uintptr_t)&fdiv_s << ";\\n";
     os << "uint32_t (*fsqrt_s)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&fsqrt_s << ";\\n";
     os << "uint32_t (*fcmp_s)(uint32_t v1, uint32_t v2, uint32_t op)=" << (uintptr_t)&fcmp_s << ";\\n";
-    os << "uint32_t (*fcvt_s)(uint32_t v1, uint32_t op, uint8_t mode)=" << (uintptr_t)&fcvt_s << ";\\n";
     os << "uint32_t (*fmadd_s)(uint32_t v1, uint32_t v2, uint32_t v3, uint32_t op, uint8_t mode)=" << (uintptr_t)&fmadd_s << ";\\n";
     os << "uint32_t (*fsel_s)(uint32_t v1, uint32_t v2, uint32_t op)=" << (uintptr_t)&fsel_s << ";\\n";
     os << "uint32_t (*fclass_s)( uint32_t v1 )=" << (uintptr_t)&fclass_s << ";\\n";
-    os << "uint32_t (*fconv_d2f)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&fconv_d2f << ";\\n";
-    os << "uint64_t (*fconv_f2d)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&fconv_f2d << ";\\n";
+
+    os << "uint32_t (*f32toi32)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f32toi32 << ";\\n";
+    os << "uint32_t (*f32toui32)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f32toui32 << ";\\n";
+    os << "uint32_t (*i32tof32)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&i32tof32 << ";\\n";
+    os << "uint32_t (*ui32tof32)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&ui32tof32 << ";\\n";
+    os << "uint64_t (*f32toi64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f32toi64 <<";\\n";
+    os << "uint64_t (*f32toui64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f32toui64 <<";\\n";
+    os << "uint32_t (*i64tof32)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&i64tof32 <<";\\n";
+    os << "uint32_t (*ui64tof32)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&ui64tof32 <<";\\n";
+    <%if(flen > 32) {%>
+    os << "uint32_t (*unbox_s)(uint8_t FLEN, uint64_t v)=" << (uintptr_t)&unbox_s << ";\\n";
+
     os << "uint64_t (*fadd_d)(uint64_t v1, uint64_t v2, uint8_t mode)=" << (uintptr_t)&fadd_d << ";\\n";
     os << "uint64_t (*fsub_d)(uint64_t v1, uint64_t v2, uint8_t mode)=" << (uintptr_t)&fsub_d << ";\\n";
     os << "uint64_t (*fmul_d)(uint64_t v1, uint64_t v2, uint8_t mode)=" << (uintptr_t)&fmul_d << ";\\n";
     os << "uint64_t (*fdiv_d)(uint64_t v1, uint64_t v2, uint8_t mode)=" << (uintptr_t)&fdiv_d << ";\\n";
     os << "uint64_t (*fsqrt_d)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&fsqrt_d << ";\\n";
     os << "uint64_t (*fcmp_d)(uint64_t v1, uint64_t v2, uint32_t op)=" << (uintptr_t)&fcmp_d << ";\\n";
-    os << "uint64_t (*fcvt_d)(uint64_t v1, uint32_t op, uint8_t mode)=" << (uintptr_t)&fcvt_d << ";\\n";
     os << "uint64_t (*fmadd_d)(uint64_t v1, uint64_t v2, uint64_t v3, uint32_t op, uint8_t mode)=" << (uintptr_t)&fmadd_d << ";\\n";
     os << "uint64_t (*fsel_d)(uint64_t v1, uint64_t v2, uint32_t op)=" << (uintptr_t)&fsel_d << ";\\n";
     os << "uint64_t (*fclass_d)(uint64_t v1  )=" << (uintptr_t)&fclass_d << ";\\n";
-    os << "uint64_t (*fcvt_32_64)(uint32_t v1, uint32_t op, uint8_t mode)=" << (uintptr_t)&fcvt_32_64 << ";\\n";
-    os << "uint32_t (*fcvt_64_32)(uint64_t v1, uint32_t op, uint8_t mode)=" << (uintptr_t)&fcvt_64_32 << ";\\n";
-    os << "uint32_t (*unbox_s)(uint64_t v)=" << (uintptr_t)&unbox_s << ";\\n";
-    <%}%>
+
+    os << "uint32_t (*f64tof32)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&f64tof32 << ";\\n";
+    os << "uint64_t (*f32tof64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&f32tof64 << ";\\n";
+    os << "uint64_t (*f64toi64)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&f64toi64 <<";\\n";
+    os << "uint64_t (*f64toui64)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&f64toui64 <<";\\n";
+    os << "uint64_t (*i64tof64)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&i64tof64 <<";\\n";
+    os << "uint64_t (*ui64tof64)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&ui64tof64 <<";\\n";
+    os << "uint64_t (*i32tof64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&i32tof64 <<";\\n";
+    os << "uint64_t (*ui32tof64)(uint32_t v1, uint8_t mode)=" << (uintptr_t)&ui32tof64 <<";\\n";
+    os << "uint32_t (*f64toi32)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&f64toi32 <<";\\n";
+    os << "uint32_t (*f64toui32)(uint64_t v1, uint8_t mode)=" << (uintptr_t)&f64toui32 <<";\\n";
+    <%}
+    }%>
     tu.add_prologue(os.str());
 }
 
diff --git a/src/vm/asmjit/vm_tgc5c.cpp b/src/vm/asmjit/vm_tgc5c.cpp
index 5c1cb72..8f7bdcb 100644
--- a/src/vm/asmjit/vm_tgc5c.cpp
+++ b/src/vm/asmjit/vm_tgc5c.cpp
@@ -338,7 +338,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -385,7 +385,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -433,7 +433,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto new_pc = (uint32_t)(PC+(int32_t)sext<21>(imm));
@@ -492,7 +492,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto addr_mask = (uint32_t)- 2;
@@ -565,7 +565,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -629,7 +629,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -693,7 +693,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -759,7 +759,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -825,7 +825,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -889,7 +889,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -952,7 +952,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address = gen_ext(cc, 
@@ -1006,7 +1006,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address = gen_ext(cc, 
@@ -1060,7 +1060,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address = gen_ext(cc, 
@@ -1114,7 +1114,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address = gen_ext(cc, 
@@ -1167,7 +1167,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address = gen_ext(cc, 
@@ -1220,7 +1220,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto store_address = gen_ext(cc, 
@@ -1269,7 +1269,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto store_address = gen_ext(cc, 
@@ -1318,7 +1318,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto store_address = gen_ext(cc, 
@@ -1367,7 +1367,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1417,23 +1417,23 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
-                auto label_then11 = cc.newLabel();
-                auto label_merge11 = cc.newLabel();
-                auto tmp_reg11 = get_reg(cc, 8, false);
+                auto label_then1 = cc.newLabel();
+                auto label_merge1 = cc.newLabel();
+                auto tmp_reg1 = get_reg(cc, 8, false);
                 cmp(cc, gen_ext(cc, 
                     load_reg_from_mem(jh, traits::X0 + rs1), 32, true), (int16_t)sext<12>(imm));
-                cc.jl(label_then11);
-                mov(cc, tmp_reg11,0);
-                cc.jmp(label_merge11);
-                cc.bind(label_then11);
-                mov(cc, tmp_reg11, 1);
-                cc.bind(label_merge11);
+                cc.jl(label_then1);
+                mov(cc, tmp_reg1,0);
+                cc.jmp(label_merge1);
+                cc.bind(label_then1);
+                mov(cc, tmp_reg1, 1);
+                cc.bind(label_merge1);
                 mov(cc, get_ptr_for(jh, traits::X0+ rd),
-                      gen_ext(cc, tmp_reg11
+                      gen_ext(cc, tmp_reg1
                       , 32, false)
                 );
             }
@@ -1478,22 +1478,22 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
-                auto label_then12 = cc.newLabel();
-                auto label_merge12 = cc.newLabel();
-                auto tmp_reg12 = get_reg(cc, 8, false);
+                auto label_then2 = cc.newLabel();
+                auto label_merge2 = cc.newLabel();
+                auto tmp_reg2 = get_reg(cc, 8, false);
                 cmp(cc, load_reg_from_mem(jh, traits::X0 + rs1), (uint32_t)((int16_t)sext<12>(imm)));
-                cc.jb(label_then12);
-                mov(cc, tmp_reg12,0);
-                cc.jmp(label_merge12);
-                cc.bind(label_then12);
-                mov(cc, tmp_reg12, 1);
-                cc.bind(label_merge12);
+                cc.jb(label_then2);
+                mov(cc, tmp_reg2,0);
+                cc.jmp(label_merge2);
+                cc.bind(label_then2);
+                mov(cc, tmp_reg2, 1);
+                cc.bind(label_merge2);
                 mov(cc, get_ptr_for(jh, traits::X0+ rd),
-                      gen_ext(cc, tmp_reg12
+                      gen_ext(cc, tmp_reg2
                       , 32, false)
                 );
             }
@@ -1538,7 +1538,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1587,7 +1587,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1636,7 +1636,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1685,7 +1685,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1734,7 +1734,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1783,7 +1783,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1834,7 +1834,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1884,7 +1884,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1934,7 +1934,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -1984,24 +1984,24 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
-                auto label_then13 = cc.newLabel();
-                auto label_merge13 = cc.newLabel();
-                auto tmp_reg13 = get_reg(cc, 8, false);
+                auto label_then3 = cc.newLabel();
+                auto label_merge3 = cc.newLabel();
+                auto tmp_reg3 = get_reg(cc, 8, false);
                 cmp(cc, gen_ext(cc, 
                     load_reg_from_mem(jh, traits::X0 + rs1), 32, true), gen_ext(cc, 
                     load_reg_from_mem(jh, traits::X0 + rs2), 32, true));
-                cc.jl(label_then13);
-                mov(cc, tmp_reg13,0);
-                cc.jmp(label_merge13);
-                cc.bind(label_then13);
-                mov(cc, tmp_reg13, 1);
-                cc.bind(label_merge13);
+                cc.jl(label_then3);
+                mov(cc, tmp_reg3,0);
+                cc.jmp(label_merge3);
+                cc.bind(label_then3);
+                mov(cc, tmp_reg3, 1);
+                cc.bind(label_merge3);
                 mov(cc, get_ptr_for(jh, traits::X0+ rd),
-                      gen_ext(cc, tmp_reg13
+                      gen_ext(cc, tmp_reg3
                       , 32, false)
                 );
             }
@@ -2046,22 +2046,22 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
-                auto label_then14 = cc.newLabel();
-                auto label_merge14 = cc.newLabel();
-                auto tmp_reg14 = get_reg(cc, 8, false);
+                auto label_then4 = cc.newLabel();
+                auto label_merge4 = cc.newLabel();
+                auto tmp_reg4 = get_reg(cc, 8, false);
                 cmp(cc, load_reg_from_mem(jh, traits::X0 + rs1), load_reg_from_mem(jh, traits::X0 + rs2));
-                cc.jb(label_then14);
-                mov(cc, tmp_reg14,0);
-                cc.jmp(label_merge14);
-                cc.bind(label_then14);
-                mov(cc, tmp_reg14, 1);
-                cc.bind(label_merge14);
+                cc.jb(label_then4);
+                mov(cc, tmp_reg4,0);
+                cc.jmp(label_merge4);
+                cc.bind(label_then4);
+                mov(cc, tmp_reg4, 1);
+                cc.bind(label_merge4);
                 mov(cc, get_ptr_for(jh, traits::X0+ rd),
-                      gen_ext(cc, tmp_reg14
+                      gen_ext(cc, tmp_reg4
                       , 32, false)
                 );
             }
@@ -2106,7 +2106,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -2155,7 +2155,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -2205,7 +2205,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -2257,7 +2257,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -2306,7 +2306,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -2503,10 +2503,10 @@ private:
         gen_instr_prologue(jh);
         cc.comment("//behavior:");
         /*generate behavior*/
-        InvokeNode* call_wait_15;
+        InvokeNode* call_wait_5;
         jh.cc.comment("//call_wait");
-        jh.cc.invoke(&call_wait_15, &wait, FuncSignature::build<void, int32_t>());
-        setArg(call_wait_15, 0, 1);
+        jh.cc.invoke(&call_wait_5, &wait, FuncSignature::build<void, uint32_t>());
+        setArg(call_wait_5, 0, 1);
         auto returnValue = CONT;
         
         gen_sync(jh, POST_SYNC, 41);
@@ -2547,7 +2547,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrs1 = load_reg_from_mem(jh, traits::X0 + rs1);
@@ -2601,7 +2601,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd = gen_read_mem(jh, traits::CSR, csr, 4);
@@ -2655,7 +2655,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd = gen_read_mem(jh, traits::CSR, csr, 4);
@@ -2709,7 +2709,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd = gen_read_mem(jh, traits::CSR, csr, 4);
@@ -2759,7 +2759,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd = gen_read_mem(jh, traits::CSR, csr, 4);
@@ -2812,7 +2812,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd = gen_read_mem(jh, traits::CSR, csr, 4);
@@ -2905,7 +2905,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res = gen_operation(cc, smul, gen_ext(cc, 
@@ -2958,7 +2958,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res = gen_operation(cc, smul, gen_ext(cc, 
@@ -3012,7 +3012,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res = gen_operation(cc, sumul, gen_ext(cc, 
@@ -3065,7 +3065,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res = gen_operation(cc, umul, load_reg_from_mem(jh, traits::X0 + rs1), load_reg_from_mem(jh, traits::X0 + rs2))
@@ -3117,7 +3117,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto dividend = gen_ext(cc, 
@@ -3206,7 +3206,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -3273,7 +3273,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -3366,7 +3366,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -3438,7 +3438,7 @@ private:
                       ), 32, false));
         }
         else{
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         auto returnValue = CONT;
         
@@ -3569,7 +3569,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rs1!=0){
@@ -3697,7 +3697,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -3744,7 +3744,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(imm==0||rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         if(rd!=0){
             mov(cc, get_ptr_for(jh, traits::X0+ rd),
@@ -3794,7 +3794,7 @@ private:
                       ), 32, true));
         }
         else{
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         auto returnValue = CONT;
         
@@ -3832,7 +3832,7 @@ private:
         gen_instr_prologue(jh);
         cc.comment("//behavior:");
         /*generate behavior*/
-        gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+        gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         auto returnValue = CONT;
         
         gen_sync(jh, POST_SYNC, 66);
@@ -4317,7 +4317,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rs1!=0){
@@ -4365,7 +4365,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rd==0){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto offs = gen_ext(cc, 
@@ -4415,7 +4415,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -4546,7 +4546,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0){
@@ -4595,7 +4595,7 @@ private:
         /*generate behavior*/
         mov(jh.cc, get_ptr_for(jh, traits::LAST_BRANCH), static_cast<int>(NO_JUMP));
         if(rs1>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto addr_mask = (uint32_t)- 2;
@@ -4682,7 +4682,7 @@ private:
         cc.comment("//behavior:");
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)){
-            gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto offs = gen_ext(cc, 
@@ -4726,7 +4726,7 @@ private:
         gen_instr_prologue(jh);
         cc.comment("//behavior:");
         /*generate behavior*/
-        gen_raise(jh, 0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+        gen_raise(jh, 0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         auto returnValue = CONT;
         
         gen_sync(jh, POST_SYNC, 86);
@@ -4924,4 +4924,4 @@ volatile std::array<bool, 2> dummy = {
 };
 }
 }
-// clang-format on
+// clang-format on
\ No newline at end of file
diff --git a/src/vm/fp_functions.h b/src/vm/fp_functions.h
index 1cf749d..2148651 100644
--- a/src/vm/fp_functions.h
+++ b/src/vm/fp_functions.h
@@ -49,7 +49,6 @@ uint16_t fsqrt_h(uint16_t v1, uint8_t mode);
 uint16_t fcmp_h(uint16_t v1, uint16_t v2, uint16_t op);
 uint16_t fmadd_h(uint16_t v1, uint16_t v2, uint16_t v3, uint16_t op, uint8_t mode);
 uint16_t fsel_h(uint16_t v1, uint16_t v2, uint16_t op);
-uint16_t fsqrt_h(uint16_t v1, uint8_t mode);
 uint16_t fclass_h(uint16_t v1);
 uint16_t frsqrt7_h(uint16_t v);
 uint16_t frec7_h(uint16_t v, uint8_t mode);
diff --git a/src/vm/llvm/fp_impl.cpp b/src/vm/llvm/fp_impl.cpp
index ca7e331..ef0889f 100644
--- a/src/vm/llvm/fp_impl.cpp
+++ b/src/vm/llvm/fp_impl.cpp
@@ -72,32 +72,68 @@ using namespace ::llvm;
 void add_fp_functions_2_module(Module* mod, uint32_t flen, uint32_t xlen) {
     if(flen) {
         FDECL(fget_flags, INT_TYPE(32));
+
+        FDECL(fadd_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(8));
+        FDECL(fsub_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(8));
+        FDECL(fmul_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(8));
+        FDECL(fdiv_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(8));
+        FDECL(fsqrt_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(8));
+        FDECL(fcmp_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(16));
+        FDECL(fmadd_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(8));
+        FDECL(fsel_h, INT_TYPE(16), INT_TYPE(16), INT_TYPE(16), INT_TYPE(16));
+        FDECL(fclass_h, INT_TYPE(16), INT_TYPE(16));
+        FDECL(unbox_h, INT_TYPE(16), INT_TYPE(32), INT_TYPE(64)); // technically the first arg is only 8 bits
+
+        FDECL(f16toi32, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8))
+        FDECL(f16toui32, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8))
+        FDECL(i32tof16, INT_TYPE(16), INT_TYPE(32), INT_TYPE(8))
+        FDECL(ui32tof16, INT_TYPE(16), INT_TYPE(32), INT_TYPE(8))
+        FDECL(f16toi64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8))
+        FDECL(f16toui64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8))
+        FDECL(i64tof16, INT_TYPE(16), INT_TYPE(64), INT_TYPE(8))
+        FDECL(ui64tof16, INT_TYPE(16), INT_TYPE(64), INT_TYPE(8))
+
         FDECL(fadd_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fsub_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fmul_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fdiv_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fsqrt_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fcmp_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32));
-        FDECL(fcvt_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fmadd_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
         FDECL(fsel_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(32), INT_TYPE(32));
         FDECL(fclass_s, INT_TYPE(32), INT_TYPE(32));
-        FDECL(fcvt_32_64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
-        FDECL(fcvt_64_32, INT_TYPE(32), INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+
+        FDECL(f32toi32, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
+        FDECL(f32toui32, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
+        FDECL(i32tof32, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
+        FDECL(ui32tof32, INT_TYPE(32), INT_TYPE(32), INT_TYPE(8));
+        FDECL(f32toi64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+        FDECL(f32toui64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+        FDECL(i64tof32, INT_TYPE(32), INT_TYPE(64), INT_TYPE(8));
+        FDECL(ui64tof32, INT_TYPE(32), INT_TYPE(64), INT_TYPE(8));
         if(flen > 32) {
-            FDECL(fconv_d2f, INT_TYPE(32), INT_TYPE(64), INT_TYPE(8));
-            FDECL(fconv_f2d, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+            FDECL(unbox_s, INT_TYPE(32), INT_TYPE(32), INT_TYPE(64)); // technically the first arg is only 8 bits
+
             FDECL(fadd_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
             FDECL(fsub_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
             FDECL(fmul_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
             FDECL(fdiv_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
             FDECL(fsqrt_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
             FDECL(fcmp_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(32));
-            FDECL(fcvt_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
             FDECL(fmadd_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
             FDECL(fsel_d, INT_TYPE(64), INT_TYPE(64), INT_TYPE(64), INT_TYPE(32));
             FDECL(fclass_d, INT_TYPE(64), INT_TYPE(64));
-            FDECL(unbox_s, INT_TYPE(32), INT_TYPE(64));
+
+            FDECL(f64tof32, INT_TYPE(32), INT_TYPE(64), INT_TYPE(8));
+            FDECL(f32tof64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+            FDECL(f64toi64, INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
+            FDECL(f64toui64, INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
+            FDECL(i64tof64, INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
+            FDECL(ui64tof64, INT_TYPE(64), INT_TYPE(64), INT_TYPE(8));
+            FDECL(i32tof64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+            FDECL(ui32tof64, INT_TYPE(64), INT_TYPE(32), INT_TYPE(8));
+            FDECL(f64toi32, INT_TYPE(32), INT_TYPE(64), INT_TYPE(8));
+            FDECL(f64toui32, INT_TYPE(32), INT_TYPE(64), INT_TYPE(8));
         }
     }
 }
diff --git a/src/vm/llvm/vm_tgc5c.cpp b/src/vm/llvm/vm_tgc5c.cpp
index ef76949..3253990 100644
--- a/src/vm/llvm/vm_tgc5c.cpp
+++ b/src/vm/llvm/vm_tgc5c.cpp
@@ -353,7 +353,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -399,7 +399,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -446,7 +446,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto new_pc =(uint32_t)(PC+(int32_t)sext<21>(imm));
@@ -503,7 +503,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto addr_mask =(uint32_t)- 2;
@@ -584,7 +584,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -649,7 +649,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -714,7 +714,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -783,7 +783,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -852,7 +852,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -917,7 +917,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -981,7 +981,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address =this->gen_ext(
@@ -1039,7 +1039,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address =this->gen_ext(
@@ -1097,7 +1097,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address =this->gen_ext(
@@ -1155,7 +1155,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address =this->gen_ext(
@@ -1211,7 +1211,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto load_address =this->gen_ext(
@@ -1267,7 +1267,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto store_address =this->gen_ext(
@@ -1320,7 +1320,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto store_address =this->gen_ext(
@@ -1373,7 +1373,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto store_address =this->gen_ext(
@@ -1426,7 +1426,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1478,7 +1478,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1532,7 +1532,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1585,7 +1585,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1635,7 +1635,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1685,7 +1685,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1735,7 +1735,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1785,7 +1785,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1835,7 +1835,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1887,7 +1887,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1939,7 +1939,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -1991,7 +1991,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2044,7 +2044,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2099,7 +2099,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2152,7 +2152,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2202,7 +2202,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2255,7 +2255,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2311,7 +2311,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2361,7 +2361,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -2553,10 +2553,10 @@ private:
         
         this->gen_instr_prologue();
         /*generate behavior*/
-        std::vector<Value*> wait_231_args{
+        std::vector<Value*> wait_57_args{
             this->gen_ext(this->gen_const(8,1), 32)
         };
-        this->builder.CreateCall(this->mod->getFunction("wait"), wait_231_args);
+        this->builder.CreateCall(this->mod->getFunction("wait"), wait_57_args);
         bb = BasicBlock::Create(this->mod->getContext(), "entry", this->func, this->leave_blk);
         auto returnValue = std::make_tuple(CONT,bb);
         
@@ -2595,7 +2595,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrs1 =this->gen_reg_load(traits::X0+ rs1);
@@ -2651,7 +2651,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd =this->gen_read_mem(traits::CSR, csr, 4);
@@ -2708,7 +2708,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd =this->gen_read_mem(traits::CSR, csr, 4);
@@ -2765,7 +2765,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd =this->gen_read_mem(traits::CSR, csr, 4);
@@ -2816,7 +2816,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd =this->gen_read_mem(traits::CSR, csr, 4);
@@ -2872,7 +2872,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto xrd =this->gen_read_mem(traits::CSR, csr, 4);
@@ -2968,7 +2968,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res =this->builder.CreateMul(
@@ -3023,7 +3023,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res =this->builder.CreateMul(
@@ -3081,7 +3081,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res =this->builder.CreateMul(
@@ -3138,7 +3138,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto res =this->builder.CreateMul(
@@ -3194,7 +3194,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto dividend =this->gen_ext(
@@ -3298,7 +3298,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -3371,7 +3371,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -3479,7 +3479,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rs1>=static_cast<uint32_t>(traits::RFS)||rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             {
@@ -3561,7 +3561,7 @@ private:
             get_reg_ptr(rd+8 + traits::X0), false);
         }
         else{
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         bb = BasicBlock::Create(this->mod->getContext(), "entry", this->func, this->leave_blk);
         auto returnValue = std::make_tuple(CONT,bb);
@@ -3698,7 +3698,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rs1!=0) {
@@ -3825,7 +3825,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -3871,7 +3871,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(imm==0||rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         if(rd!=0) {
             this->builder.CreateStore(
@@ -3924,7 +3924,7 @@ private:
             get_reg_ptr(2 + traits::X0), false);
         }
         else{
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         bb = BasicBlock::Create(this->mod->getContext(), "entry", this->func, this->leave_blk);
         auto returnValue = std::make_tuple(CONT,bb);
@@ -3960,7 +3960,7 @@ private:
         
         this->gen_instr_prologue();
         /*generate behavior*/
-        this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+        this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         bb = BasicBlock::Create(this->mod->getContext(), "entry", this->func, this->leave_blk);
         auto returnValue = std::make_tuple(CONT,bb);
         
@@ -4459,7 +4459,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rs1!=0) {
@@ -4508,7 +4508,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)||rd==0) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto offs =this->gen_ext(
@@ -4562,7 +4562,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -4689,7 +4689,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rd>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             if(rd!=0) {
@@ -4740,7 +4740,7 @@ private:
         /*generate behavior*/
         this->builder.CreateStore(this->gen_const(32U, static_cast<int>(NO_JUMP)), get_reg_ptr(traits::LAST_BRANCH), false);
         if(rs1>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto addr_mask =(uint32_t)- 2;
@@ -4826,7 +4826,7 @@ private:
         this->gen_instr_prologue();
         /*generate behavior*/
         if(rs2>=static_cast<uint32_t>(traits::RFS)) {
-            this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
             auto offs =this->gen_ext(
@@ -4874,7 +4874,7 @@ private:
         
         this->gen_instr_prologue();
         /*generate behavior*/
-        this->gen_raise_trap(0, static_cast<int32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
+        this->gen_raise_trap(0, static_cast<uint32_t>(traits::RV_CAUSE_ILLEGAL_INSTRUCTION));
         bb = BasicBlock::Create(this->mod->getContext(), "entry", this->func, this->leave_blk);
         auto returnValue = std::make_tuple(CONT,bb);
         
diff --git a/src/vm/tcc/vm_tgc5c.cpp b/src/vm/tcc/vm_tgc5c.cpp
index 45669de..8846647 100644
--- a/src/vm/tcc/vm_tgc5c.cpp
+++ b/src/vm/tcc/vm_tgc5c.cpp
@@ -348,7 +348,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -384,7 +384,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -421,7 +421,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto new_pc = (uint32_t)(PC+(int32_t)sext<21>(imm));
@@ -468,7 +468,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto addr_mask = (uint32_t)- 2;
@@ -526,7 +526,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_EQ,
@@ -576,7 +576,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_NE,
@@ -626,7 +626,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_SLT,
@@ -676,7 +676,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_SGE,
@@ -726,7 +726,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_ULT,
@@ -776,7 +776,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_UGE,
@@ -825,7 +825,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto load_address = tu.assignment(tu.ext((tu.add(
@@ -866,7 +866,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto load_address = tu.assignment(tu.ext((tu.add(
@@ -907,7 +907,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto load_address = tu.assignment(tu.ext((tu.add(
@@ -948,7 +948,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto load_address = tu.assignment(tu.ext((tu.add(
@@ -989,7 +989,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto load_address = tu.assignment(tu.ext((tu.add(
@@ -1030,7 +1030,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto store_address = tu.assignment(tu.ext((tu.add(
@@ -1068,7 +1068,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto store_address = tu.assignment(tu.ext((tu.add(
@@ -1106,7 +1106,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rs2>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto store_address = tu.assignment(tu.ext((tu.add(
@@ -1144,7 +1144,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1183,7 +1183,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1222,7 +1222,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1261,7 +1261,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1300,7 +1300,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1339,7 +1339,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1378,7 +1378,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1417,7 +1417,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1456,7 +1456,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1495,7 +1495,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1534,7 +1534,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1573,7 +1573,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1614,7 +1614,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1653,7 +1653,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1692,7 +1692,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1731,7 +1731,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1772,7 +1772,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1813,7 +1813,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -1852,7 +1852,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -2030,7 +2030,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto xrs1 = tu.assignment(tu.load(rs1 + traits::X0, 0),32);
@@ -2072,7 +2072,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto xrd = tu.assignment(tu.read_mem(traits::CSR, csr, 32),32);
@@ -2116,7 +2116,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto xrd = tu.assignment(tu.read_mem(traits::CSR, csr, 32),32);
@@ -2160,7 +2160,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto xrd = tu.assignment(tu.read_mem(traits::CSR, csr, 32),32);
@@ -2199,7 +2199,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto xrd = tu.assignment(tu.read_mem(traits::CSR, csr, 32),32);
@@ -2242,7 +2242,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto xrd = tu.assignment(tu.read_mem(traits::CSR, csr, 32),32);
@@ -2315,7 +2315,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto res = tu.assignment(tu.mul(
@@ -2355,7 +2355,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto res = tu.assignment(tu.mul(
@@ -2397,7 +2397,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto res = tu.assignment(tu.mul(
@@ -2439,7 +2439,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto res = tu.assignment(tu.mul(
@@ -2481,7 +2481,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto dividend = tu.assignment(tu.ext(tu.load(rs1 + traits::X0, 0),32,true),32);
@@ -2546,7 +2546,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_NE,
@@ -2597,7 +2597,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_NE,
@@ -2665,7 +2665,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rs1>=static_cast<uint32_t>(traits:: RFS)||rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	tu.open_if(tu.icmp(ICmpInst::ICMP_NE,
@@ -2720,7 +2720,7 @@ private:
                tu.constant(imm,16))),32,false));
         }
         else{
-        	this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+        	this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         auto returnValue = CONT;
         
@@ -2817,7 +2817,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rs1!=0) {
@@ -2913,7 +2913,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -2949,7 +2949,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(imm==0||rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         if(rd!=0) {
             tu.store(rd + traits::X0, tu.constant((uint32_t)((int32_t)sext<18>(imm)),32));
@@ -2987,7 +2987,7 @@ private:
                tu.constant((int16_t)sext<10>(nzimm),16))),32,false));
         }
         else{
-        	this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+        	this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         auto returnValue = CONT;
         
@@ -3015,7 +3015,7 @@ private:
         tu("(*cycle)++;");
         tu.open_scope();
         this->gen_set_tval(tu, instr);
-        this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+        this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         auto returnValue = CONT;
         
         tu.close_scope();
@@ -3376,7 +3376,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rs1!=0) {
@@ -3414,7 +3414,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)||rd==0) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto offs = tu.assignment(tu.ext((tu.add(
@@ -3451,7 +3451,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -3551,7 +3551,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rd>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	if(rd!=0) {
@@ -3589,7 +3589,7 @@ private:
         this->gen_set_tval(tu, instr);
         tu.store(traits::LAST_BRANCH, tu.constant(static_cast<int>(NO_JUMP),32));
         if(rs1>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto addr_mask = (uint32_t)- 2;
@@ -3656,7 +3656,7 @@ private:
         tu.open_scope();
         this->gen_set_tval(tu, instr);
         if(rs2>=static_cast<uint32_t>(traits:: RFS)) {
-            this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+            this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         }
         else{
         	auto offs = tu.assignment(tu.ext((tu.add(
@@ -3689,7 +3689,7 @@ private:
         tu("(*cycle)++;");
         tu.open_scope();
         this->gen_set_tval(tu, instr);
-        this->gen_raise_trap(tu, 0, static_cast<int32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
+        this->gen_raise_trap(tu, 0, static_cast<uint32_t>(traits:: RV_CAUSE_ILLEGAL_INSTRUCTION));
         auto returnValue = CONT;
         
         tu.close_scope();
@@ -3831,4 +3831,4 @@ volatile std::array<bool, 2> dummy = {
 };
 }
 }
-// clang-format on
+// clang-format on
\ No newline at end of file