summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/c64/fun_play.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/c64/fun_play.c')
-rw-r--r--src/devices/bus/c64/fun_play.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/devices/bus/c64/fun_play.c b/src/devices/bus/c64/fun_play.c
new file mode 100644
index 00000000000..69aa80288bc
--- /dev/null
+++ b/src/devices/bus/c64/fun_play.c
@@ -0,0 +1,98 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Fun Play / Power Play cartridge emulation
+
+**********************************************************************/
+
+#include "fun_play.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type C64_FUN_PLAY = &device_creator<c64_fun_play_cartridge_device>;
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// c64_fun_play_cartridge_device - constructor
+//-------------------------------------------------
+
+c64_fun_play_cartridge_device::c64_fun_play_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, C64_FUN_PLAY, "C64 Fun Play cartridge", tag, owner, clock, "c64_fun_play", __FILE__),
+ device_c64_expansion_card_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void c64_fun_play_cartridge_device::device_start()
+{
+ // state saving
+ save_item(NAME(m_bank));
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void c64_fun_play_cartridge_device::device_reset()
+{
+ m_bank = 0;
+}
+
+
+//-------------------------------------------------
+// c64_cd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 c64_fun_play_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ if (!roml)
+ {
+ offs_t addr = (m_bank << 13) | (offset & 0x1fff);
+ data = m_roml[addr];
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// c64_cd_w - cartridge data write
+//-------------------------------------------------
+
+void c64_fun_play_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ if (!io1)
+ {
+ /*
+
+ bit description
+
+ 0 A16
+ 1
+ 2
+ 3 A13
+ 4 A14
+ 5 A15
+ 6
+ 7
+
+ */
+
+ m_bank = ((data & 0x01) << 3) | ((data >> 3) & 0x07);
+ }
+}