summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/a2bus/a2estd80col.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/a2bus/a2estd80col.h')
-rw-r--r--src/devices/bus/a2bus/a2estd80col.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/a2estd80col.h b/src/devices/bus/a2bus/a2estd80col.h
new file mode 100644
index 00000000000..bcab4bab704
--- /dev/null
+++ b/src/devices/bus/a2bus/a2estd80col.h
@@ -0,0 +1,47 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ a2estd80col.c
+
+ Apple IIe Standard 80 Column Card
+
+*********************************************************************/
+
+#ifndef __A2EAUX_STD80COL__
+#define __A2EAUX_STD80COL__
+
+#include "emu.h"
+#include "a2eauxslot.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class a2eaux_std80col_device:
+ public device_t,
+ public device_a2eauxslot_card_interface
+{
+public:
+ // construction/destruction
+ a2eaux_std80col_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ a2eaux_std80col_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+protected:
+ virtual void device_start();
+ virtual void device_reset();
+
+ virtual UINT8 read_auxram(UINT16 offset);
+ virtual void write_auxram(UINT16 offset, UINT8 data);
+ virtual UINT8 *get_vram_ptr();
+ virtual UINT8 *get_auxbank_ptr();
+ virtual bool allow_dhr() { return false; } // we don't allow DHR
+
+private:
+ UINT8 m_ram[2*1024];
+};
+
+// device type definition
+extern const device_type A2EAUX_STD80COL;
+
+#endif /* __A2EAUX_STD80COL__ */