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-rw-r--r--src/mess/machine/vb_std.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/src/mess/machine/vb_std.c b/src/mess/machine/vb_std.c
new file mode 100644
index 00000000000..029085271eb
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+++ b/src/mess/machine/vb_std.c
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+/**********************************************************************
+
+ VideoBrain Standard 2K/4K cartridge emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "vb_std.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type VB_STD = &device_creator<videobrain_standard_cartridge_device>;
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// videobrain_standard_cartridge_device - constructor
+//-------------------------------------------------
+
+videobrain_standard_cartridge_device::videobrain_standard_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, VB_STD, "VideoBrain standard cartridge", tag, owner, clock),
+ device_videobrain_expansion_card_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void videobrain_standard_cartridge_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// videobrain_bo_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 videobrain_standard_cartridge_device::videobrain_bo_r(address_space &space, offs_t offset, int cs1, int cs2)
+{
+ UINT8 data = 0;
+
+ if (!cs1)
+ {
+ data = m_rom[offset & m_rom_mask];
+ }
+ else if (!cs2)
+ {
+ data = m_rom[offset & m_rom_mask];
+ }
+ return data;
+}