Working on structs

src/main/fragment/_deref_pbuc1=vssz1_mbr_0.asm

@@ -1,2 +0,0 @@
-lda {z1}+0
-sta {c1}

src/main/fragment/_deref_pbuc1=vssz1_mbr_1.asm

@@ -1,2 +0,0 @@
-lda {z1}+1
-sta {c1}

src/main/fragment/vssz1=vssz2.asm

@@ -0,0 +1,4 @@
+lda {z2}
+sta {z1}
+lda {z2}+1
+sta {z1}+1

src/main/fragment/vssz1_mbr_0=vbuc1.asm

@@ -1,2 +0,0 @@
-lda #{c1}
-sta {z1}+0

src/main/fragment/vssz1_mbr_1=vbuc1.asm

@@ -1,2 +0,0 @@
-lda #{c1}
-sta {z1}+1

src/main/java/dk/camelot64/kickc/passes/Pass0GenerateStatementSequence.java

@@ -497,6 +497,9 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
          // Add comments to constant
          lValue.setComments(ensureUnusedComments(comments));
       }
+      if(type instanceof SymbolTypeStruct) {
+         lValue.setDeclaredVolatile(true);
+      }
       KickCParser.ExprContext initializer = ctx.expr();
       if(declVarStructMember) {
          if(initializer != null) {

src/test/java/dk/camelot64/kickc/test/TestPrograms.java

@@ -32,6 +32,11 @@ public class TestPrograms {
    public TestPrograms() {
    }
 
+   @Test
+   public void testStruct2() throws IOException, URISyntaxException {
+      compileAndCompare("struct-2");
+   }
+
    @Test
    public void testStruct1() throws IOException, URISyntaxException {
       compileAndCompare("struct-1");

src/test/kc/struct-2.kc

@@ -0,0 +1,20 @@
+// Minimal struct - different instances and copying
+
+struct Point {
+    byte x;
+    byte y;
+};
+
+struct Point point1, point2;
+
+void main() {
+    point1.x = 2;
+    point1.y = 3;
+    point2 = point1;
+    point2.x = 4;
+    const byte* SCREEN = 0x0400;
+    SCREEN[0] = point1.x;
+    SCREEN[1] = point1.y;
+    SCREEN[2] = point2.x;
+    SCREEN[3] = point2.y;
+}

src/test/ref/struct-2.asm

@@ -0,0 +1,36 @@
+// Minimal struct - different instances and copying
+.pc = $801 "Basic"
+:BasicUpstart(bbegin)
+.pc = $80d "Program"
+  .label point1 = 2
+  .label point2 = 4
+bbegin:
+  lda #0
+  sta point1
+  sta point1+1
+  sta point2
+  sta point2+1
+  jsr main
+  rts
+main: {
+    .label SCREEN = $400
+    lda #2
+    sta point1+0
+    lda #3
+    sta point1+1
+    lda point1
+    sta point2
+    lda point1+1
+    sta point2+1
+    lda #4
+    sta point2+0
+    lda point1+0
+    sta SCREEN
+    lda point1+1
+    sta SCREEN+1
+    lda point2+0
+    sta SCREEN+2
+    lda point2+1
+    sta SCREEN+3
+    rts
+}