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-rw-r--r--src/devices/bus/c64/supercpu.c306
1 files changed, 306 insertions, 0 deletions
diff --git a/src/devices/bus/c64/supercpu.c b/src/devices/bus/c64/supercpu.c
new file mode 100644
index 00000000000..cb8a28e2198
--- /dev/null
+++ b/src/devices/bus/c64/supercpu.c
@@ -0,0 +1,306 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ CMD SuperCPU v2 + SuperRAM emulation
+
+**********************************************************************/
+
+#include "supercpu.h"
+
+
+
+//**************************************************************************
+// MACROS/CONSTANTS
+//**************************************************************************
+
+#define G65816_TAG "g65816"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type C64_SUPERCPU = &device_creator<c64_supercpu_device>;
+
+
+//-------------------------------------------------
+// ROM( c64_supercpu )
+//-------------------------------------------------
+
+ROM_START( c64_supercpu )
+ ROM_REGION( 0x20000, G65816_TAG, 0 )
+ ROM_LOAD( "supercpu_dos_204.bin", 0x00000, 0x20000, CRC(f4151454) SHA1(6aa529a7b1b6de53e8979e407a77b4d5657727f5) )
+ROM_END
+
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const rom_entry *c64_supercpu_device::device_rom_region() const
+{
+ return ROM_NAME( c64_supercpu );
+}
+
+
+//-------------------------------------------------
+// ADDRESS_MAP( c64_supercpu_map )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START( c64_supercpu_map, AS_PROGRAM, 8, c64_supercpu_device )
+ AM_RANGE(0x000000, 0x01ffff) AM_RAM AM_SHARE("sram")
+ AM_RANGE(0x020000, 0xf7ffff) AM_RAM AM_SHARE("dimm")
+ AM_RANGE(0xf80000, 0xf9ffff) AM_MIRROR(0x60000) AM_ROM AM_REGION(G65816_TAG, 0)
+ADDRESS_MAP_END
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_FRAGMENT( c64_supercpu )
+//-------------------------------------------------
+
+static MACHINE_CONFIG_FRAGMENT( c64_supercpu )
+ MCFG_CPU_ADD(G65816_TAG, G65816, 1000000)
+ MCFG_CPU_PROGRAM_MAP(c64_supercpu_map)
+
+ MCFG_C64_PASSTHRU_EXPANSION_SLOT_ADD()
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor c64_supercpu_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( c64_supercpu );
+}
+
+
+//-------------------------------------------------
+// INPUT_PORTS( c64_supercpu )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( c64_supercpu )
+ PORT_START("FRONT")
+ PORT_DIPNAME( 0x01, 0x01, "Unit" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, "JiffyDOS" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x00, "Speed" )
+ PORT_DIPSETTING( 0x04, "Normal" )
+ PORT_DIPSETTING( 0x00, "Turbo" )
+
+ PORT_START("RESET")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Reset") PORT_CODE(KEYCODE_F11) PORT_WRITE_LINE_DEVICE_MEMBER(DEVICE_SELF_OWNER, c64_expansion_slot_device, reset_w)
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor c64_supercpu_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( c64_supercpu );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// c64_supercpu_device - constructor
+//-------------------------------------------------
+
+c64_supercpu_device::c64_supercpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, C64_SUPERCPU, "SuperCPU", tag, owner, clock, "c64_supercpu", __FILE__),
+ device_c64_expansion_card_interface(mconfig, *this),
+ m_maincpu(*this, G65816_TAG),
+ m_exp(*this, C64_EXPANSION_SLOT_TAG),
+ m_sram(*this, "sram"),
+ m_dimm(*this, "dimm")
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void c64_supercpu_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void c64_supercpu_device::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// c64_cd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 c64_supercpu_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ data = m_exp->cd_r(space, offset, data, sphi2, ba, roml, romh, io1, io2);
+
+ switch (offset)
+ {
+ case 0xd0b0:
+ data = 0x40;
+ break;
+
+ case 0xd0b1:
+ break;
+
+ case 0xd0b2:
+ break;
+
+ case 0xd0b3:
+ case 0xd0b4:
+ break;
+
+ case 0xd0b5:
+ break;
+
+ case 0xd0b6:
+ break;
+
+ case 0xd0b7:
+ break;
+
+ case 0xd0b8:
+ case 0xd0b9:
+ break;
+
+ case 0xd0ba:
+ break;
+
+ case 0xd0bb:
+ break;
+
+ case 0xd0bc:
+ case 0xd0bd:
+ case 0xd0be:
+ case 0xd0bf:
+ break;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// c64_cd_w - cartridge data write
+//-------------------------------------------------
+
+void c64_supercpu_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ switch (offset)
+ {
+ case 0xd071:
+ break;
+
+ case 0xd072:
+ break;
+
+ case 0xd073:
+ break;
+
+ case 0xd074:
+ case 0xd075:
+ case 0xd076:
+ case 0xd077:
+ break;
+
+ case 0xd078:
+ break;
+
+ case 0xd07a:
+ break;
+
+ case 0xd079:
+ case 0xd07b:
+ break;
+
+ case 0xd07c:
+ break;
+
+ case 0xd07d:
+ case 0xd07f:
+ break;
+
+ case 0xd0b0:
+ case 0xd0b1:
+ break;
+
+ case 0xd0b2:
+ break;
+
+ case 0xd0b3:
+ break;
+
+ case 0xd0b4:
+ break;
+
+ case 0xd0b5:
+ break;
+
+ case 0xd0b6:
+ break;
+
+ case 0xd0b7:
+ break;
+
+ case 0xd0b8:
+ break;
+
+ case 0xd0b9:
+ case 0xd0ba:
+ case 0xd0bb:
+ break;
+
+ case 0xd0bc:
+ break;
+
+ case 0xd0be:
+ break;
+
+ case 0xd0bd:
+ case 0xd0bf:
+ break;
+ }
+
+ m_exp->cd_w(space, offset, data, sphi2, ba, roml, romh, io1, io2);
+}
+
+
+//-------------------------------------------------
+// c64_game_r - GAME read
+//-------------------------------------------------
+
+int c64_supercpu_device::c64_game_r(offs_t offset, int sphi2, int ba, int rw)
+{
+ return m_exp->game_r(offset, sphi2, ba, rw, m_slot->hiram());
+}
+
+
+//-------------------------------------------------
+// c64_exrom_r - EXROM read
+//-------------------------------------------------
+
+int c64_supercpu_device::c64_exrom_r(offs_t offset, int sphi2, int ba, int rw)
+{
+ return m_exp->exrom_r(offset, sphi2, ba, rw, m_slot->hiram());
+}