diff --git a/src/test/java/dk/camelot64/kickc/test/TestPrograms.java b/src/test/java/dk/camelot64/kickc/test/TestPrograms.java
index f27f8f086..f918d7d97 100644
--- a/src/test/java/dk/camelot64/kickc/test/TestPrograms.java
+++ b/src/test/java/dk/camelot64/kickc/test/TestPrograms.java
@@ -279,6 +279,20 @@ public class TestPrograms {
       compileAndCompare("declared-memory-var-0");
    }
 
+   /*
+   @Test
+   public void testProcedureCallingConventionStack8() throws IOException, URISyntaxException {
+      compileAndCompare("procedure-callingconvention-stack-8", log().verboseLiveRanges()); //, log().verboseCreateSsa().verboseParse().verboseStatementSequence());
+   }
+    */
+
+   /*
+   @Test
+   public void testProcedureCallingConventionStack7() throws IOException, URISyntaxException {
+      compileAndCompare("procedure-callingconvention-stack-7", log().verboseLiveRanges()); //, log().verboseCreateSsa().verboseParse().verboseStatementSequence());
+   }
+    */
+
    /*
    @Test
    public void testProcedureCallingConventionStack6() throws IOException, URISyntaxException {
diff --git a/src/test/kc/procedure-callingconvention-stack-7.kc b/src/test/kc/procedure-callingconvention-stack-7.kc
new file mode 100644
index 000000000..fa6972f4a
--- /dev/null
+++ b/src/test/kc/procedure-callingconvention-stack-7.kc
@@ -0,0 +1,21 @@
+// Test a procedure with calling convention stack
+// Illustrates live range problem with variables in different functions main::val and printline::i
+
+#pragma calling(__stackcall)
+#pragma var_model(ma_zp)
+
+const char* SCREEN = 0x0400;
+
+void main(void) {
+    char val = 0;
+    val = '-';
+    printline();
+    SCREEN[80] = val;
+}
+
+void printline() {
+    for(char i=0; i<40; i++) {
+        SCREEN[i] = '*';
+    }
+}
+
diff --git a/src/test/kc/procedure-callingconvention-stack-8.kc b/src/test/kc/procedure-callingconvention-stack-8.kc
new file mode 100644
index 000000000..e58b16489
--- /dev/null
+++ b/src/test/kc/procedure-callingconvention-stack-8.kc
@@ -0,0 +1,22 @@
+// Test a procedure with calling convention stack
+// Illustrates live range problem with variable function printline::i and global variable val
+
+#pragma calling(__stackcall)
+#pragma var_model(ma_zp)
+
+const char* SCREEN = 0x0400;
+
+char val = 0;
+
+void main(void) {
+    val = '-';
+    printline();
+    SCREEN[80] = val;
+}
+
+void printline() {
+    for(char i=0; i<40; i++) {
+        SCREEN[i] = '*';
+    }
+}
+