First stab at adding Mockingboard support.

[apple2] / src / mos6522via.cpp

diff --git a/src/mos6522via.cpp b/src/mos6522via.cpp
new file mode 100644 (file)
index 0000000..6632691
--- /dev/null
+++ b/src/mos6522via.cpp
@@ -0,0 +1,20 @@
+// Mockingboard support (6522 interface)
+//
+// by James Hammons
+// (C) 2018 Underground Software
+//
+
+#include "mos6522via.h"
+
+#include <string.h>                                                            // for memset()
+
+
+MOS6522VIA mbvia[4];
+
+
+void ResetMBVIAs(void)
+{
+       for(int i=0; i<4; i++)
+               memset(&mbvia[i], 0, sizeof(MOS6522VIA));
+}
+