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Diffstat (limited to 'src/devices/bus/apf/rom.c')
-rw-r--r--src/devices/bus/apf/rom.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/devices/bus/apf/rom.c b/src/devices/bus/apf/rom.c
new file mode 100644
index 00000000000..9eb83e4f12c
--- /dev/null
+++ b/src/devices/bus/apf/rom.c
@@ -0,0 +1,78 @@
+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+/***********************************************************************************************************
+
+
+ APF Imagination / M-1000 cart emulation
+
+
+ ***********************************************************************************************************/
+
+
+#include "emu.h"
+#include "rom.h"
+
+
+//-------------------------------------------------
+// apf_rom_device - constructor
+//-------------------------------------------------
+
+const device_type APF_ROM_STD = &device_creator<apf_rom_device>;
+const device_type APF_ROM_BASIC = &device_creator<apf_basic_device>;
+const device_type APF_ROM_SPACEDST = &device_creator<apf_spacedst_device>;
+
+
+apf_rom_device::apf_rom_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)
+ : device_t(mconfig, type, name, tag, owner, clock, shortname, source),
+ device_apf_cart_interface( mconfig, *this )
+{
+}
+
+apf_rom_device::apf_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, APF_ROM_STD, "APF Standard Carts", tag, owner, clock, "apf_rom", __FILE__),
+ device_apf_cart_interface( mconfig, *this )
+{
+}
+
+apf_basic_device::apf_basic_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : apf_rom_device(mconfig, APF_ROM_BASIC, "APF BASIC Carts", tag, owner, clock, "apf_basic", __FILE__)
+{
+}
+
+apf_spacedst_device::apf_spacedst_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : apf_rom_device(mconfig, APF_ROM_SPACEDST, "APF Space Destroyer Cart", tag, owner, clock, "apf_spacedst", __FILE__)
+{
+}
+
+
+/*-------------------------------------------------
+ mapper specific handlers
+ -------------------------------------------------*/
+
+READ8_MEMBER(apf_rom_device::read_rom)
+{
+ if (offset < m_rom_size)
+ return m_rom[offset];
+ else
+ return 0xff;
+}
+
+
+READ8_MEMBER(apf_basic_device::extra_rom)
+{
+ if (offset < (m_rom_size - 0x2000))
+ return m_rom[offset + 0x2000];
+ else
+ return 0xff;
+}
+
+
+READ8_MEMBER(apf_spacedst_device::read_ram)
+{
+ return m_ram[offset];
+}
+
+WRITE8_MEMBER(apf_spacedst_device::write_ram)
+{
+ m_ram[offset] = data;
+}