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Diffstat (limited to 'src/mame/drivers/codata.cpp')
-rw-r--r--src/mame/drivers/codata.cpp68
1 files changed, 32 insertions, 36 deletions
diff --git a/src/mame/drivers/codata.cpp b/src/mame/drivers/codata.cpp
index 4285ed97df7..da13cfd1723 100644
--- a/src/mame/drivers/codata.cpp
+++ b/src/mame/drivers/codata.cpp
@@ -13,9 +13,9 @@
#include "emu.h"
#include "cpu/m68000/m68000.h"
-#include "machine/terminal.h"
-
-#define TERMINAL_TAG "terminal"
+#include "bus/rs232/rs232.h"
+#include "machine/am9513.h"
+#include "machine/z80sio.h"
class codata_state : public driver_device
{
@@ -23,32 +23,24 @@ public:
codata_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_p_base(*this, "rambase"),
- m_terminal(*this, TERMINAL_TAG),
m_maincpu(*this, "maincpu")
{
}
- DECLARE_READ16_MEMBER(keyin_r);
- DECLARE_READ16_MEMBER(status_r);
- void kbd_put(u8 data);
-
private:
- uint8_t m_term_data;
virtual void machine_reset() override;
required_shared_ptr<uint16_t> m_p_base;
- required_device<generic_terminal_device> m_terminal;
required_device<cpu_device> m_maincpu;
};
static ADDRESS_MAP_START(codata_mem, AS_PROGRAM, 16, codata_state)
ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x000000, 0x0fffff) AM_RAM AM_SHARE("rambase")
+ AM_RANGE(0x000000, 0x1fffff) AM_RAM AM_SHARE("rambase")
AM_RANGE(0x200000, 0x203fff) AM_ROM AM_REGION("user1", 0);
AM_RANGE(0x400000, 0x403fff) AM_ROM AM_REGION("user1", 0x4000);
- AM_RANGE(0x600000, 0x600001) AM_READ(keyin_r) AM_DEVWRITE8(TERMINAL_TAG, generic_terminal_device, write, 0xff00)
- AM_RANGE(0x600002, 0x600003) AM_READ(status_r)
- //AM_RANGE(0x600000, 0x600003) uPD7201 SIO
- //AM_RANGE(0x800000, 0x800003) AM9513 5 channel timer
+ AM_RANGE(0x600000, 0x600007) AM_MIRROR(0x1ffff8) AM_DEVREADWRITE8("uart", upd7201_new_device, ba_cd_r, ba_cd_w, 0xff00)
+ AM_RANGE(0x800000, 0x800003) AM_MIRROR(0x1ffffc) AM_DEVREADWRITE("timer", am9513_device, read16, write16)
+ AM_RANGE(0xe00000, 0xe00001) AM_MIRROR(0x1ffffe) AM_READ_PORT("INPUT")
//AM_RANGE(0xa00000, 0xbfffff) page map (rw)
//AM_RANGE(0xc00000, 0xdfffff) segment map (rw), context register (r)
//AM_RANGE(0xe00000, 0xffffff) context register (w), 16-bit parallel input port (r)
@@ -56,31 +48,15 @@ ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( codata )
+ PORT_START("INPUT")
+ PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END
-READ16_MEMBER( codata_state::keyin_r )
-{
- uint16_t ret = m_term_data;
- m_term_data = 0;
- return ret << 8;
-}
-
-READ16_MEMBER( codata_state::status_r )
-{
- return (m_term_data) ? 0x500 : 0x400;
-}
-
-void codata_state::kbd_put(u8 data)
-{
- m_term_data = data;
-}
-
void codata_state::machine_reset()
{
uint8_t* RAM = memregion("user1")->base();
memcpy(m_p_base, RAM, 16);
- m_term_data = 0;
m_maincpu->reset();
}
@@ -89,9 +65,29 @@ static MACHINE_CONFIG_START( codata )
MCFG_CPU_ADD("maincpu",M68000, XTAL_16MHz / 2)
MCFG_CPU_PROGRAM_MAP(codata_mem)
- /* video hardware */
- MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
- MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(codata_state, kbd_put))
+ MCFG_DEVICE_ADD("uart", UPD7201_NEW, XTAL_16MHz / 4)
+ MCFG_Z80SIO_OUT_TXDA_CB(DEVWRITELINE("rs423a", rs232_port_device, write_txd))
+ MCFG_Z80SIO_OUT_DTRA_CB(DEVWRITELINE("rs423a", rs232_port_device, write_dtr))
+ MCFG_Z80SIO_OUT_RTSA_CB(DEVWRITELINE("rs423a", rs232_port_device, write_rts))
+ MCFG_Z80SIO_OUT_TXDB_CB(DEVWRITELINE("rs423b", rs232_port_device, write_txd))
+ MCFG_Z80SIO_OUT_INT_CB(INPUTLINE("maincpu", M68K_IRQ_5))
+
+ MCFG_DEVICE_ADD("timer", AM9513A, 3993600) // actually XTAL_16MHz / 4, which produces 9615 baud when divided
+ MCFG_AM9513_OUT1_CALLBACK(NOOP) // Timer 1 = "Abort/Reset" (watchdog)
+ MCFG_AM9513_OUT2_CALLBACK(INPUTLINE("maincpu", M68K_IRQ_6)) // Timer 2
+ MCFG_AM9513_OUT3_CALLBACK(INPUTLINE("maincpu", M68K_IRQ_7)) // Refresh
+ MCFG_AM9513_OUT4_CALLBACK(DEVWRITELINE("uart", upd7201_new_device, rxca_w))
+ MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", upd7201_new_device, txca_w))
+ MCFG_AM9513_OUT5_CALLBACK(DEVWRITELINE("uart", upd7201_new_device, rxcb_w))
+ MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", upd7201_new_device, txcb_w))
+
+ MCFG_RS232_PORT_ADD("rs423a", default_rs232_devices, "terminal")
+ MCFG_RS232_RXD_HANDLER(DEVWRITELINE("uart", upd7201_new_device, rxa_w))
+ MCFG_RS232_DSR_HANDLER(DEVWRITELINE("uart", upd7201_new_device, dcda_w))
+ MCFG_RS232_CTS_HANDLER(DEVWRITELINE("uart", upd7201_new_device, ctsa_w))
+
+ MCFG_RS232_PORT_ADD("rs423b", default_rs232_devices, nullptr)
+ MCFG_RS232_RXD_HANDLER(DEVWRITELINE("uart", upd7201_new_device, rxb_w))
MACHINE_CONFIG_END
/* ROM definition */