Testing

njvm.c

@@ -140,7 +140,7 @@ void execute(struct program *program, struct sda *sda) {
                 currentFrame->bp = NULL;
                 break;
             case PUSHL:
-                if (debug == 1) printf("PUSHL %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                printf("PUSHL %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
                 currentFrame = stack.frames[stack.currentFrame];
                 currentFrame->bp = currentFrame->sp;
                 int x = SIGN_EXTEND(IMMEDIATE(instruction));

programs/prog7.asm

@@ -0,0 +1,28 @@
+//
+// prog02.asm -- call/ret with args, but without ret value
+//
+
+	asf	3
+	pushc	11
+	pushc	33
+	call	proc
+	drop	2
+	rsf
+	halt
+
+proc:
+	asf	2
+	pushl	4
+	wrint
+	pushc	'\n'
+	wrchr
+	pushc	22
+	wrint
+	pushc	'\n'
+	wrchr
+	pushl	3
+	wrint
+	pushc	'\n'
+	wrchr
+	rsf
+	ret