From 6c50043a4a36c16a30ae09381fed7d63e473786b Mon Sep 17 00:00:00 2001
From: Irmen de Jong <irmen@razorvine.net>
Date: Fri, 28 Jun 2019 02:57:13 +0200
Subject: [PATCH] swap isn't yet finished

---
 compiler/src/prog8/astvm/AstVm.kt | 13 ++++++++++---
 examples/test.p8                  | 23 +++++++++--------------
 2 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/compiler/src/prog8/astvm/AstVm.kt b/compiler/src/prog8/astvm/AstVm.kt
index c2088bb18..c00566087 100644
--- a/compiler/src/prog8/astvm/AstVm.kt
+++ b/compiler/src/prog8/astvm/AstVm.kt
@@ -272,9 +272,7 @@ class AstVm(val program: Program) {
                     is BuiltinFunctionStatementPlaceholder -> {
                         if(target.name=="swap") {
                             // swap cannot be implemented as a function, so inline it here
-                            val a1 = (stmt.arglist[0] as IdentifierReference).targetVarDecl(program.namespace)!!
-                            val a2 = (stmt.arglist[1] as IdentifierReference).targetVarDecl(program.namespace)!!
-                            runtimeVariables.swap(a1, a2)
+                            executeSwap(sub, stmt)
                         } else {
                             val args = evaluate(stmt.arglist)
                             functions.performBuiltinFunction(target.name, args, statusflags)
@@ -396,6 +394,15 @@ class AstVm(val program: Program) {
         }
     }
 
+    private fun executeSwap(sub: INameScope, swap: FunctionCallStatement) {
+        // TODO: can swap many different parameters.... in all combinations...
+        println("TODO SWAP ${swap.arglist}")
+//        val a1 = (swap.arglist[0] as IdentifierReference).targetVarDecl(program.namespace)!!
+//        val a2 = (swap.arglist[1] as IdentifierReference).targetVarDecl(program.namespace)!!
+//        runtimeVariables.swap(a1, a2)
+//        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+
     fun performAssignment(target: AssignTarget, value: RuntimeValue, contextStmt: IStatement, evalCtx: EvalContext) {
         when {
             target.identifier != null -> {
diff --git a/examples/test.p8 b/examples/test.p8
index d96456bbf..ec368763b 100644
--- a/examples/test.p8
+++ b/examples/test.p8
@@ -9,19 +9,14 @@
         ubyte[100] arr1
         ubyte[100] arr2
 
-    _lp:
-        memcopy(arr1, arr2, len(arr2))
-        c64scr.setcc(20,10,65,2)
-        goto x
-        c64scr.setcc(20,10,65,2)
+        word w1 = 1111
+        word w2 = 2222
+
+        swap(w1, w2)
+        swap(A, Y)
+        swap(arr1[10], arr2[20])
+        swap(arr1[10], Y)
+        swap(Y, arr2[10])
+        swap(@($d020), @($d021))
     }
-
-    sub x() {
-
-derp:
-        c64scr.print("ey\n")
-        goto derp
-
-    }
-
 }