diff --git a/src/interpreter.c b/src/interpreter.c
index 09a16cf..3222ee8 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -1451,6 +1451,29 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
             }
             break;
         }
+        case OR: {
+            if (in->args.length < 2) {
+                runtimeError(TOO_FEW_ARGS, "Expecting at least 2 args", in, currentInstruction);
+            }
+            for (size_t i = 0; i < in->args.length - 1; i++) {
+                if (in->args.args[i].type != VALUE) {
+                    runtimeError(ARG_TYPE_MISMATCH, "Expecting a value for all args except last", in, currentInstruction);
+                }
+                if (in->args.args[i].value.value.type != INT) {
+                    runtimeError(ARG_TYPE_MISMATCH, "Expecting an int for all args except last", in, currentInstruction);
+                }
+            }
+            if (in->args.args[in->args.length-1].type != DIRREF) {
+                runtimeError(ARG_TYPE_MISMATCH, "Expecting a direct reference for last argument", in, currentInstruction);
+            }
+            
+            int64_t result = 0;
+            for (size_t i = 0; i < in->args.length - 1; i++) {
+                result |= in->args.args[i].value.value.data.intVal;
+            }
+            addVariable(scope->variables, in->args.args[in->args.length-1].value.refName, createIntGroundValue(result));
+            break;
+        }
         
         /*
          * STRING OPERATIONS 
diff --git a/src/parser.c b/src/parser.c
index 9447e8a..84d84e7 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -176,6 +176,11 @@ static GroundInstType getInstructionType(const char* inst) {
     if (strcmp(inst, "not") == 0) return NOT;
     if (strcmp(inst, "greater") == 0) return GREATER;
     if (strcmp(inst, "lesser") == 0) return LESSER;
+    if (strcmp(inst, "and") == 0) return AND;
+    if (strcmp(inst, "or") == 0) return OR;
+    if (strcmp(inst, "xor") == 0) return XOR;
+    if (strcmp(inst, "neg") == 0) return NEG;
+    if (strcmp(inst, "shift") == 0) return SHIFT;
     if (strcmp(inst, "stoi") == 0) return STOI;
     if (strcmp(inst, "stod") == 0) return STOD;
     if (strcmp(inst, "ctoi") == 0) return CTOI;
diff --git a/src/types.c b/src/types.c
index 4eb15c2..20ee2e7 100644
--- a/src/types.c
+++ b/src/types.c
@@ -486,6 +486,21 @@ void printGroundInstruction(GroundInstruction* gi) {
         case LESSER:
             printf("lesser");
             break;
+        case AND:
+            printf("and");
+            break;
+        case OR:
+            printf("or");
+            break;
+        case XOR:
+            printf("xor");
+            break;
+        case NEG:
+            printf("neg");
+            break;
+        case SHIFT:
+            printf("shift");
+            break;
         case STOI:
             printf("stoi");
             break;
diff --git a/src/types.h b/src/types.h
index 6530f9e..2774b45 100644
--- a/src/types.h
+++ b/src/types.h
@@ -29,7 +29,7 @@ void wasm_print(const char* str);
 #endif
 
 typedef enum GroundInstType {
-    IF, JUMP, END, INPUT, PRINT, PRINTLN, SET, GETTYPE, EXISTS, SETLIST, SETLISTAT, GETLISTAT, GETLISTSIZE, LISTAPPEND, GETSTRSIZE, GETSTRCHARAT, ADD, SUBTRACT, MULTIPLY, DIVIDE, EQUAL, INEQUAL, NOT, GREATER, LESSER, STOI, STOD, ITOC, CTOI, TOSTRING, FUN, RETURN, ENDFUN, PUSHARG, CALL, STRUCT, ENDSTRUCT, INIT, GETFIELD, SETFIELD, USE, EXTERN, CREATELABEL, PAUSE, DROP, LICENSE, ERRORCMD
+    IF, JUMP, END, INPUT, PRINT, PRINTLN, SET, GETTYPE, EXISTS, SETLIST, SETLISTAT, GETLISTAT, GETLISTSIZE, LISTAPPEND, GETSTRSIZE, GETSTRCHARAT, ADD, SUBTRACT, MULTIPLY, DIVIDE, EQUAL, INEQUAL, NOT, GREATER, LESSER, AND, OR, XOR, NEG, SHIFT, STOI, STOD, ITOC, CTOI, TOSTRING, FUN, RETURN, ENDFUN, PUSHARG, CALL, STRUCT, ENDSTRUCT, INIT, GETFIELD, SETFIELD, USE, EXTERN, CREATELABEL, PAUSE, DROP, LICENSE, ERRORCMD
 } GroundInstType;
 
 typedef enum GroundValueType {
diff --git a/tests/end.grnd b/tests/end.grnd
new file mode 100644
index 0000000..b144a17
--- /dev/null
+++ b/tests/end.grnd
@@ -0,0 +1,2 @@
+set &x 10
+end $x
\ No newline at end of file
diff --git a/tests/unit.sh b/tests/unit.sh
index 42d0c0a..512ae83 100755
--- a/tests/unit.sh
+++ b/tests/unit.sh
@@ -8,7 +8,8 @@ for f in *.grnd; do
     [[ "$f" == "string.grnd" ]] ||
     [[ "$f" == "test.grnd" ]] ||
     [[ "$f" == "to1000.grnd" ]] ||
-    [[ "$f" == "uhoh.grnd" ]];
+    [[ "$f" == "uhoh.grnd" ]] ||
+    [[ "$f" == "pause.grnd" ]];
         then continue
     fi
     echo "Running $f"