diff --git a/src/vm/interp/vm_tgc_c.cpp b/src/vm/interp/vm_tgc_c.cpp
index 09d1480..14ff892 100644
--- a/src/vm/interp/vm_tgc_c.cpp
+++ b/src/vm/interp/vm_tgc_c.cpp
@@ -2187,12 +2187,11 @@ typename vm_base<ARCH>::virt_addr_t vm_impl<ARCH>::execute_inst(finish_cond_e co
                 *NEXT_PC = *PC + 2;
                 // execute instruction
                 {
-                    uint32_t offs = *(X+2) + uimm;
-                    int32_t read_res = super::template read_mem<int32_t>(traits::MEM, offs);
-                    if(this->core.trap_state) goto TRAP_CLWSP;
-                    int32_t res = read_res;
                     if(rd % traits::RFS) {
-                        *(X+rd % traits::RFS) = res;
+                        int32_t read_res = super::template read_mem<int32_t>(traits::MEM, *(X+2) + uimm);
+                        if(this->core.trap_state) goto TRAP_CLWSP;
+                        int32_t res = read_res;
+                        *(X+rd % traits::RFS) = (int32_t)res;
                     }
                     else {
                         raise(0, 2);