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-rw-r--r--src/mess/machine/vic10std.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/src/mess/machine/vic10std.c b/src/mess/machine/vic10std.c
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+++ b/src/mess/machine/vic10std.c
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+/**********************************************************************
+
+ Commodore VIC-10 Standard 8K/16K ROM Cartridge emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "vic10std.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type VIC10_STD = &device_creator<vic10_standard_cartridge_device>;
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vic10_standard_cartridge_device - constructor
+//-------------------------------------------------
+
+vic10_standard_cartridge_device::vic10_standard_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, VIC10_STD, "VIC-10 Standard Cartridge", tag, owner, clock),
+ device_vic10_expansion_card_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vic10_standard_cartridge_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// vic10_cd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 vic10_standard_cartridge_device::vic10_cd_r(address_space &space, offs_t offset, int lorom, int uprom, int exram)
+{
+ UINT8 data = 0;
+
+ if (!lorom && (m_lorom != NULL))
+ {
+ data = m_lorom[offset & 0x1fff];
+ }
+ else if (!exram && (m_exram != NULL))
+ {
+ data = m_exram[offset & 0x7ff];
+ }
+ else if (!uprom && (m_uprom != NULL))
+ {
+ data = m_uprom[offset & 0x1fff];
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// vic10_cd_w - cartridge data write
+//-------------------------------------------------
+
+void vic10_standard_cartridge_device::vic10_cd_w(address_space &space, offs_t offset, UINT8 data, int lorom, int uprom, int exram)
+{
+ if (!exram && (m_exram != NULL))
+ {
+ m_exram[offset & 0x7ff] = data;
+ }
+}