Merge pull request #424 from clbr/trampoline

Trampoline support

test/val/trampoline.c

@@ -0,0 +1,49 @@
+/*
+  !!DESCRIPTION!! wrapped-call pragma used for trampolines
+  !!ORIGIN!!      cc65 regression tests
+  !!LICENCE!!     Public Domain
+  !!AUTHOR!!      Lauri Kasanen
+*/
+
+static unsigned char flag;
+
+static void trampoline_set() {
+	asm("ldy tmp4");
+	asm("sty %v", flag);
+	asm("jsr callptr4");
+}
+
+void trampoline_inc() {
+	asm("inc %v", flag);
+	asm("jsr callptr4");
+}
+
+void func3() {
+
+}
+
+#pragma wrapped-call(push, trampoline_inc, 0)
+
+void func2() {
+	func3();
+}
+
+#pragma wrapped-call(push, trampoline_set, 4)
+
+void func1(void);
+
+#pragma wrapped-call(pop)
+#pragma wrapped-call(pop)
+
+void func1() {
+	func2();
+}
+
+int main(void)
+{
+	flag = 0;
+
+	func1();
+
+	return flag == 5 ? 0 : 1;
+}