Fix subtraction bug

include/groundvm.h

@@ -16,7 +16,7 @@
 
 
 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, 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 {

src/interpreter.c

@@ -1332,9 +1332,9 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
                     }
     
                     if (right->type == INT) {
-                        result += right->data.intVal;
+                        result -= right->data.intVal;
                     } else if (right->type == DOUBLE) {
-                        result += right->data.doubleVal;
+                        result -= right->data.doubleVal;
                     }
 
                     addVariable(scope->variables, in->args.args[2].value.refName, createDoubleGroundValue(result));
@@ -2106,7 +2106,7 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
                 runtimeError(TOO_MANY_ARGS, "Expecting 3 args", in, currentInstruction);
             }
             if (in->args.args[0].type != VALUE) {
-                runtimeError(ARG_TYPE_MISMATCH, "Expecting an Object for arg 1", in, currentInstruction);
+                runtimeError(ARG_TYPE_MISMATCH, "Expecting a Value for arg 1", in, currentInstruction);
             }
             if (in->args.args[0].value.value.type != CUSTOM) {
                 runtimeError(ARG_TYPE_MISMATCH, "Expecting an Object for arg 1", in, currentInstruction);

src/types.c

@@ -540,6 +540,12 @@ void printGroundInstruction(GroundInstruction* gi) {
         case INIT:
             printf("init");
             break;
+        case SETFIELD:
+            printf("setfield");
+            break;
+        case GETFIELD:
+            printf("getfield");
+            break;
         case USE:
             printf("use");
             break;

tests/log.txt

@@ -0,0 +1,6 @@
+Lists are deprecated, please migrate to using the "collections" library soon.
+Ground runtime error:
+  ErrorType: Hello
+  ErrorContext: [1, 2, 3, Hi!]
+  ErrorInstruction: error "Hello" [1, 2, 3, Hi!] 1
+  ErrorLine: 2