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-rw-r--r--src/mame/drivers/ccs300.c142
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diff --git a/src/mame/drivers/ccs300.c b/src/mame/drivers/ccs300.c
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+// license:BSD-3-Clause
+// copyright-holders:Robbbert
+/***************************************************************************
+
+ CCS Model 300
+
+ 2009-12-11 Skeleton driver.
+
+It requires a floppy disk to boot from.
+
+There's no info available on this system, however the bankswitching
+appears to be the same as their other systems.
+
+Early on, it does a read from port F2. If bit 3 is low, the system becomes
+a Model 400.
+
+Since IM2 is used, it is assumed there are Z80 peripherals on board.
+There's unknown usage of ports 11 thru 1B, 34, and F0 thru F2.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "machine/terminal.h"
+
+#define TERMINAL_TAG "terminal"
+
+class ccs300_state : public driver_device
+{
+public:
+ ccs300_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_terminal(*this, TERMINAL_TAG)
+ {
+ }
+
+ DECLARE_DRIVER_INIT(ccs300);
+ DECLARE_MACHINE_RESET(ccs300);
+ DECLARE_READ8_MEMBER(port10_r);
+ DECLARE_READ8_MEMBER(port11_r);
+ DECLARE_WRITE8_MEMBER(port10_w);
+ DECLARE_WRITE8_MEMBER(port40_w);
+ DECLARE_WRITE8_MEMBER(kbd_put);
+private:
+ UINT8 m_term_data;
+ required_device<cpu_device> m_maincpu;
+ required_device<generic_terminal_device> m_terminal;
+};
+
+static ADDRESS_MAP_START(ccs300_mem, AS_PROGRAM, 8, ccs300_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x07ff) AM_READ_BANK("bankr0") AM_WRITE_BANK("bankw0")
+ AM_RANGE(0x0800, 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( ccs300_io, AS_IO, 8, ccs300_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x10, 0x10) AM_READWRITE(port10_r,port10_w)
+ AM_RANGE(0x11, 0x11) AM_READ(port11_r)
+ AM_RANGE(0x40, 0x40) AM_WRITE(port40_w)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( ccs300 )
+INPUT_PORTS_END
+
+//*************************************
+//
+// Keyboard
+//
+//*************************************
+READ8_MEMBER( ccs300_state::port10_r )
+{
+ UINT8 ret = m_term_data;
+ m_term_data = 0;
+ return ret;
+}
+
+READ8_MEMBER( ccs300_state::port11_r )
+{
+ return (m_term_data) ? 5 : 4;
+}
+
+WRITE8_MEMBER( ccs300_state::port10_w )
+{
+ m_terminal->write(space, 0, data & 0x7f);
+}
+
+WRITE8_MEMBER( ccs300_state::kbd_put )
+{
+ m_term_data = data;
+}
+
+//*************************************
+//
+// Machine
+//
+//*************************************
+WRITE8_MEMBER( ccs300_state::port40_w )
+{
+ membank("bankr0")->set_entry( (data) ? 1 : 0);
+}
+
+MACHINE_RESET_MEMBER( ccs300_state, ccs300 )
+{
+ membank("bankr0")->set_entry(0); // point at rom
+ membank("bankw0")->set_entry(0); // always write to ram
+}
+
+DRIVER_INIT_MEMBER( ccs300_state, ccs300 )
+{
+ UINT8 *main = memregion("maincpu")->base();
+
+ membank("bankr0")->configure_entry(1, &main[0x0000]);
+ membank("bankr0")->configure_entry(0, &main[0x10000]);
+ membank("bankw0")->configure_entry(0, &main[0x0000]);
+}
+
+static MACHINE_CONFIG_START( ccs300, ccs300_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz)
+ MCFG_CPU_PROGRAM_MAP(ccs300_mem)
+ MCFG_CPU_IO_MAP(ccs300_io)
+ MCFG_MACHINE_RESET_OVERRIDE(ccs300_state, ccs300)
+
+ /* video hardware */
+ MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
+ MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(ccs300_state, kbd_put))
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( ccs300 )
+ ROM_REGION( 0x10800, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "ccs300.rom", 0x10000, 0x0800, CRC(6cf22e31) SHA1(9aa3327cd8c23d0eab82cb6519891aff13ebe1d0))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
+COMP( 19??, ccs300, ccs2810, 0, ccs300, ccs300, ccs300_state, ccs300, "California Computer Systems", "CCS Model 300", MACHINE_IS_SKELETON )