more logic, runtime typechecking

1 files changed, 12 insertions, 0 deletions

diff --git a/vm.d b/vm.d
index ea6a1ae..2f6de06 100644
--- a/vm.d
+++ b/vm.d
@@ -351,6 +351,18 @@ class VM {
                     double anum = asNumber(a);
                     pushA(makeNumberValue(anum - bnum));
                     break;
+                case OpCode.OP_NOT:
+                    Value val = popA();
+                    bool bval = asBoolean(val);
+                    pushA(makeBooleanValue(!bval));
+                    break;
+                case OpCode.OP_GREATER:
+                    Value b = popA();
+                    Value a = popA();
+                    double bnum = asNumber(b);
+                    double anum = asNumber(a);
+                    pushA(makeBooleanValue(anum > bnum));
+                    break;
                 case OpCode.OP_LESS:
                     Value b = popA();
                     /*