mirror of
https://github.com/holub/mame
synced 2025-10-04 08:28:39 +03:00
(MESS) spc1000: converted the expansion bus EXT1 to be a
slot device, moved FDD expansion to be a slot card, added emulation of the VDP expansion as another slot card. This makes Gun Fright, TwinBee and Zanac playable if you launch them with "-ext1 vdp" option. If you want to emulate a SPC-1000 with floppy drive, you have to add "-ext1 fdd" instead. [Fabio Priuli] out of whatsnew: disk emulation still does not work (unless we use Meeso Kim's patched BIOS), but emulation is now closer to the real functionality and we needed the changes for the VDP unit emulation.
This commit is contained in:
etabeta78
parent
7e7b1dc0bb
commit
218ea90606
@ -506,6 +506,18 @@
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</part>
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</software>
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<software name="gunfrigh">
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<description>Gun Fright</description>
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<year>1986</year>
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<publisher>Sammi Computer</publisher>
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<info name="usage" value="Requires VDP unit in -ext1 expansion" />
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<part name="cass" interface="spc1000_cass">
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<dataarea name="cass" size="614352">
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<rom name="gunfright.tap" size="614352" crc="73cc58ef" sha1="ab09466a1cf2fc12faa2e18252e348b9cc56a7ff" offset="0" />
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</dataarea>
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</part>
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</software>
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<software name="headon">
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<description>Head-On</description>
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<year>198?</year>
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@ -1000,6 +1012,18 @@
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</part>
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</software>
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<software name="twinbee">
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<description>TwinBee</description>
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<year>1986</year>
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<publisher>Static Soft</publisher>
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<info name="usage" value="Requires VDP unit in -ext1 expansion" />
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<part name="cass" interface="spc1000_cass">
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<dataarea name="cass" size="55619">
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<rom name="vdp+twinbee.cas" size="55619" crc="b1882952" sha1="cee9e0e060ce3f17b0bcc1fa1ba5d86590cae4c3" offset="0" />
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</dataarea>
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</part>
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</software>
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<software name="vela">
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<description>Vela</description>
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<year>198?</year>
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@ -1070,35 +1094,11 @@
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</part>
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</software>
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<software name="zexas">
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<description>Zexas</description>
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<year>198?</year>
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<publisher>Aloe?</publisher>
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<part name="cass" interface="spc1000_cass">
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<dataarea name="cass" size="702072">
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<rom name="zexas-5461-mayhouse.tap" size="702072" crc="9367b51e" sha1="d6da8e4ae2275dbd3ba1b9c7137944f5674daf26" offset="0" />
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</dataarea>
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</part>
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</software>
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<!-- Requires VDP Unit emulation -->
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<software name="twinbee" supported="no">
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<description>TwinBee</description>
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<year>198?</year>
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<publisher><unknown></publisher>
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<part name="cass" interface="spc1000_cass">
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<dataarea name="cass" size="55619">
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<rom name="vdp+twinbee.cas" size="55619" crc="b1882952" sha1="cee9e0e060ce3f17b0bcc1fa1ba5d86590cae4c3" offset="0" />
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</dataarea>
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</part>
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</software>
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<!-- Requires VDP Unit emulation -->
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<software name="zanac" supported="no">
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<software name="zanac">
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<description>Zanac</description>
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<year>198?</year>
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<publisher><unknown></publisher>
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<publisher>A.I.</publisher>
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<info name="usage" value="Requires VDP unit in -ext1 expansion" />
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<part name="cass" interface="spc1000_cass">
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<dataarea name="cass" size="774330">
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<rom name="vdp-zanac-mayhouse.tap" size="774330" crc="c4b6ea48" sha1="c6d85f1e43285d42b00d47cf69d14629520595c7" offset="0" />
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@ -1106,14 +1106,13 @@
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</part>
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</software>
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<!-- Requires VDP Unit emulation -->
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<software name="gunfrigh" supported="no">
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<description>Gun Fright</description>
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<software name="zexas">
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<description>Zexas</description>
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<year>198?</year>
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<publisher><unknown></publisher>
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<publisher>Aloe?</publisher>
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<part name="cass" interface="spc1000_cass">
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<dataarea name="cass" size="614352">
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<rom name="gunfright.tap" size="614352" crc="73cc58ef" sha1="ab09466a1cf2fc12faa2e18252e348b9cc56a7ff" offset="0" />
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<dataarea name="cass" size="702072">
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<rom name="zexas-5461-mayhouse.tap" size="702072" crc="9367b51e" sha1="d6da8e4ae2275dbd3ba1b9c7137944f5674daf26" offset="0" />
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</dataarea>
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</part>
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</software>
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@ -682,6 +682,19 @@ BUSOBJS += $(BUSOBJ)/s100/wunderbus.o
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endif
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#-------------------------------------------------
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#
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#@src/emu/bus/spc1000/exp.h,BUSES += SPC1000
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#-------------------------------------------------
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ifneq ($(filter SPC1000,$(BUSES)),)
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OBJDIRS += $(BUSOBJ)/spc1000
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BUSOBJS += $(BUSOBJ)/spc1000/exp.o
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BUSOBJS += $(BUSOBJ)/spc1000/fdd.o
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BUSOBJS += $(BUSOBJ)/spc1000/vdp.o
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endif
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#-------------------------------------------------
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#
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#@src/emu/bus/tvc/tvc.h,BUSES += TVC
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80
src/emu/bus/spc1000/exp.c
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80
src/emu/bus/spc1000/exp.c
Normal file
@ -0,0 +1,80 @@
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/***********************************************************************************************************
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Samsung SPC-1000 Expansion port
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***********************************************************************************************************/
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#include "emu.h"
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#include "exp.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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const device_type SPC1000_EXP_SLOT = &device_creator<spc1000_exp_device>;
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device_spc1000_card_interface::device_spc1000_card_interface(const machine_config &mconfig, device_t &device)
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: device_slot_card_interface(mconfig, device)
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{
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}
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device_spc1000_card_interface::~device_spc1000_card_interface()
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{
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// spc1000_exp_device - constructor
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//-------------------------------------------------
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spc1000_exp_device::spc1000_exp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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device_t(mconfig, SPC1000_EXP_SLOT, "Samsung SPC-1000 expansion", tag, owner, clock, "spc1000_exp", __FILE__),
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device_slot_interface(mconfig, *this)
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{
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}
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//-------------------------------------------------
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// spc1000_exp_device - destructor
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//-------------------------------------------------
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spc1000_exp_device::~spc1000_exp_device()
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void spc1000_exp_device::device_start()
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{
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m_card = dynamic_cast<device_spc1000_card_interface *>(get_card_device());
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}
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/*-------------------------------------------------
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read
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-------------------------------------------------*/
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READ8_MEMBER(spc1000_exp_device::read)
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{
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if (m_card)
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return m_card->read(space, offset);
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else
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return 0xff;
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}
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/*-------------------------------------------------
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write
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-------------------------------------------------*/
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WRITE8_MEMBER(spc1000_exp_device::write)
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{
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if (m_card)
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m_card->write(space, offset, data);
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}
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48
src/emu/bus/spc1000/exp.h
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48
src/emu/bus/spc1000/exp.h
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@ -0,0 +1,48 @@
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#ifndef __SCP1000_SLOT_H
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#define __SCP1000_SLOT_H
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// ======================> device_spc1000_card_interface
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class device_spc1000_card_interface : public device_slot_card_interface
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{
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public:
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// construction/destruction
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device_spc1000_card_interface(const machine_config &mconfig, device_t &device);
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virtual ~device_spc1000_card_interface();
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// reading and writing
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virtual DECLARE_READ8_MEMBER(read) { return 0xff; }
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virtual DECLARE_WRITE8_MEMBER(write) {}
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protected:
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};
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// ======================> spc1000_exp_device
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class spc1000_exp_device : public device_t,
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public device_slot_interface
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{
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public:
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// construction/destruction
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spc1000_exp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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virtual ~spc1000_exp_device();
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// device-level overrides
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virtual void device_start();
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// reading and writing
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virtual DECLARE_READ8_MEMBER(read);
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virtual DECLARE_WRITE8_MEMBER(write);
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protected:
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device_spc1000_card_interface* m_card;
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};
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// device type definition
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extern const device_type SPC1000_EXP_SLOT;
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#endif
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224
src/emu/bus/spc1000/fdd.c
Normal file
224
src/emu/bus/spc1000/fdd.c
Normal file
@ -0,0 +1,224 @@
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/***************************************************************************
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SPC-1000 FDD unit
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***************************************************************************/
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#include "emu.h"
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#include "fdd.h"
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/***************************************************************************
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IMPLEMENTATION
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***************************************************************************/
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READ8_MEMBER(spc1000_fdd_exp_device::i8255_c_r)
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{
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return m_i8255_0_pc >> 4;
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}
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WRITE8_MEMBER(spc1000_fdd_exp_device::i8255_b_w)
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{
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m_i8255_portb = data;
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}
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WRITE8_MEMBER(spc1000_fdd_exp_device::i8255_c_w)
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{
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m_i8255_1_pc = data;
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}
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//-------------------------------------------------
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// fdc interrupt
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//-------------------------------------------------
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READ8_MEMBER( spc1000_fdd_exp_device::tc_r )
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{
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logerror("%s: tc_r\n", space.machine().describe_context());
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// toggle tc on read
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m_fdc->tc_w(true);
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m_timer_tc->adjust(attotime::zero);
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return 0xff;
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}
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WRITE8_MEMBER( spc1000_fdd_exp_device::control_w )
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{
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logerror("%s: control_w(%02x)\n", space.machine().describe_context(), data);
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// bit 0, motor on signal
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if (m_fd0)
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m_fd0->mon_w(!BIT(data, 0));
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if (m_fd1)
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m_fd1->mon_w(!BIT(data, 0));
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}
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static ADDRESS_MAP_START( sd725_mem, AS_PROGRAM, 8, spc1000_fdd_exp_device )
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0000, 0x1fff) AM_ROM
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AM_RANGE(0x2000, 0xffff) AM_RAM
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( sd725_io, AS_IO, 8, spc1000_fdd_exp_device )
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ADDRESS_MAP_UNMAP_HIGH
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0xf8, 0xf8) AM_READWRITE(tc_r, control_w) // (R) Terminal Count Port (W) Motor Control Port
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AM_RANGE(0xfa, 0xfb) AM_DEVICE("upd765", upd765a_device, map)
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AM_RANGE(0xfc, 0xff) AM_DEVREADWRITE("d8255_master", i8255_device, read, write)
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ADDRESS_MAP_END
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static SLOT_INTERFACE_START( sd725_floppies )
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SLOT_INTERFACE("sd320", EPSON_SD_320)
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SLOT_INTERFACE_END
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static MACHINE_CONFIG_FRAGMENT(spc1000_fdd)
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/* sub CPU(5 inch floppy drive) */
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MCFG_CPU_ADD("fdccpu", Z80, XTAL_4MHz) /* 4 MHz */
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MCFG_CPU_PROGRAM_MAP(sd725_mem)
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MCFG_CPU_IO_MAP(sd725_io)
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MCFG_DEVICE_ADD("d8255_master", I8255, 0)
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MCFG_I8255_IN_PORTA_CB(DEVREAD8("d8255_master", i8255_device, pb_r))
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MCFG_I8255_IN_PORTB_CB(DEVREAD8("d8255_master", i8255_device, pa_r))
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MCFG_I8255_OUT_PORTB_CB(WRITE8(spc1000_fdd_exp_device, i8255_b_w))
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MCFG_I8255_IN_PORTC_CB(READ8(spc1000_fdd_exp_device, i8255_c_r))
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MCFG_I8255_OUT_PORTC_CB(WRITE8(spc1000_fdd_exp_device, i8255_c_w))
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// floppy disk controller
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MCFG_UPD765A_ADD("upd765", true, true)
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MCFG_UPD765_INTRQ_CALLBACK(INPUTLINE("fdccpu", INPUT_LINE_IRQ0))
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// floppy drives
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MCFG_FLOPPY_DRIVE_ADD("upd765:0", sd725_floppies, "sd320", floppy_image_device::default_floppy_formats)
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MCFG_FLOPPY_DRIVE_ADD("upd765:1", sd725_floppies, "sd320", floppy_image_device::default_floppy_formats)
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MACHINE_CONFIG_END
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//-------------------------------------------------
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// device_mconfig_additions
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//-------------------------------------------------
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machine_config_constructor spc1000_fdd_exp_device::device_mconfig_additions() const
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{
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return MACHINE_CONFIG_NAME( spc1000_fdd );
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}
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ROM_START( spc1000_fdd )
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ROM_REGION(0x10000, "fdccpu", 0)
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ROM_LOAD("sd725a.bin", 0x0000, 0x1000, CRC(96ac2eb8) SHA1(8e9d8f63a7fb87af417e95603e71cf537a6e83f1))
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ROM_END
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//-------------------------------------------------
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// device_rom_region
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//-------------------------------------------------
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const rom_entry *spc1000_fdd_exp_device::device_rom_region() const
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{
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return ROM_NAME( spc1000_fdd );
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}
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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const device_type SPC1000_FDD_EXP = &device_creator<spc1000_fdd_exp_device>;
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// spc1000_fdd_exp_device - constructor
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//-------------------------------------------------
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spc1000_fdd_exp_device::spc1000_fdd_exp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: device_t(mconfig, SPC1000_FDD_EXP, "SPC1000 FDD expansion", tag, owner, clock, "spc1000_fdd_exp", __FILE__),
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device_spc1000_card_interface(mconfig, *this),
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m_cpu(*this, "fdccpu"),
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m_fdc(*this, "upd765"),
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m_pio(*this, "d8255_master")
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void spc1000_fdd_exp_device::device_start()
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{
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m_timer_tc = timer_alloc(TIMER_TC);
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m_timer_tc->adjust(attotime::never);
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m_fd0 = subdevice<floppy_connector>("upd765:0")->get_device();
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m_fd1 = subdevice<floppy_connector>("upd765:1")->get_device();
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void spc1000_fdd_exp_device::device_reset()
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{
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m_cpu->set_input_line_vector(0, 0);
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// enable rom (is this really needed? it does not seem necessary for FDD to work)
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m_cpu->space(AS_PROGRAM).install_rom(0x0000, 0x0fff, 0, 0x2000, device().machine().root_device().memregion("fdccpu")->base());
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}
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void spc1000_fdd_exp_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
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{
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switch (id)
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{
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case TIMER_TC:
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m_fdc->tc_w(false);
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break;
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}
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}
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/*-------------------------------------------------
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read
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-------------------------------------------------*/
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READ8_MEMBER(spc1000_fdd_exp_device::read)
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{
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// this should be m_pio->read on the whole 0x00-0x03 range?
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if (offset >= 3)
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return 0xff;
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else
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{
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UINT8 data = 0;
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switch (offset)
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{
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case 1:
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data = m_i8255_portb;
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break;
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case 2:
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data = m_i8255_1_pc >> 4;
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break;
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}
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return data;
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}
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}
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//-------------------------------------------------
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// write
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER(spc1000_fdd_exp_device::write)
|
||||
{
|
||||
// this should be m_pio->write on the whole 0x00-0x03 range?
|
||||
if (offset < 3)
|
||||
{
|
||||
switch (offset)
|
||||
{
|
||||
case 0:
|
||||
m_pio->write(space, 1, data);
|
||||
break;
|
||||
case 2:
|
||||
m_i8255_0_pc = data;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
63
src/emu/bus/spc1000/fdd.h
Normal file
63
src/emu/bus/spc1000/fdd.h
Normal file
@ -0,0 +1,63 @@
|
||||
#ifndef __SPC1000_FDD_H__
|
||||
#define __SPC1000_FDD_H__
|
||||
|
||||
#include "exp.h"
|
||||
#include "cpu/z80/z80.h"
|
||||
#include "machine/i8255.h"
|
||||
#include "machine/upd765.h"
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
// ======================> spc1000_fdd_exp_device
|
||||
|
||||
class spc1000_fdd_exp_device : public device_t,
|
||||
public device_spc1000_card_interface
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
spc1000_fdd_exp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
|
||||
|
||||
// optional information overrides
|
||||
virtual machine_config_constructor device_mconfig_additions() const;
|
||||
virtual const rom_entry *device_rom_region() const;
|
||||
|
||||
public:
|
||||
// device-level overrides
|
||||
virtual void device_start();
|
||||
virtual void device_reset();
|
||||
|
||||
virtual DECLARE_READ8_MEMBER(read);
|
||||
virtual DECLARE_WRITE8_MEMBER(write);
|
||||
|
||||
DECLARE_READ8_MEMBER(tc_r);
|
||||
DECLARE_WRITE8_MEMBER(control_w);
|
||||
DECLARE_WRITE8_MEMBER(i8255_b_w);
|
||||
DECLARE_READ8_MEMBER(i8255_c_r);
|
||||
DECLARE_WRITE8_MEMBER(i8255_c_w);
|
||||
|
||||
private:
|
||||
// internal state
|
||||
required_device<z80_device> m_cpu;
|
||||
required_device<upd765a_device> m_fdc;
|
||||
required_device<i8255_device> m_pio;
|
||||
|
||||
floppy_image_device *m_fd0;
|
||||
floppy_image_device *m_fd1;
|
||||
|
||||
emu_timer *m_timer_tc;
|
||||
|
||||
UINT8 m_i8255_0_pc;
|
||||
UINT8 m_i8255_1_pc;
|
||||
UINT8 m_i8255_portb;
|
||||
|
||||
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
|
||||
static const device_timer_id TIMER_TC = 0;
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
extern const device_type SPC1000_FDD_EXP;
|
||||
|
||||
#endif /* __SPC1000_FDD_H__ */
|
||||
104
src/emu/bus/spc1000/vdp.c
Normal file
104
src/emu/bus/spc1000/vdp.c
Normal file
@ -0,0 +1,104 @@
|
||||
/***************************************************************************
|
||||
|
||||
SPC-1000 VDP expansion unit
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include "emu.h"
|
||||
#include "vdp.h"
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
IMPLEMENTATION
|
||||
***************************************************************************/
|
||||
|
||||
WRITE_LINE_MEMBER(spc1000_vdp_exp_device::vdp_interrupt)
|
||||
{
|
||||
// nothing here?
|
||||
}
|
||||
|
||||
static MACHINE_CONFIG_FRAGMENT(scp1000_vdp)
|
||||
|
||||
MCFG_DEVICE_ADD("tms", TMS9928A, XTAL_10_738635MHz / 2) // TODO: which clock?
|
||||
MCFG_TMS9928A_VRAM_SIZE(0x4000)
|
||||
MCFG_TMS9928A_OUT_INT_LINE_CB(WRITELINE(spc1000_vdp_exp_device, vdp_interrupt))
|
||||
MCFG_TMS9928A_SCREEN_ADD_NTSC("tms_screen")
|
||||
MCFG_SCREEN_UPDATE_DEVICE("tms", tms9928a_device, screen_update)
|
||||
MACHINE_CONFIG_END
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_mconfig_additions
|
||||
//-------------------------------------------------
|
||||
|
||||
machine_config_constructor spc1000_vdp_exp_device::device_mconfig_additions() const
|
||||
{
|
||||
return MACHINE_CONFIG_NAME( scp1000_vdp );
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// GLOBAL VARIABLES
|
||||
//**************************************************************************
|
||||
|
||||
const device_type SPC1000_VDP_EXP = &device_creator<spc1000_vdp_exp_device>;
|
||||
|
||||
//**************************************************************************
|
||||
// LIVE DEVICE
|
||||
//**************************************************************************
|
||||
|
||||
//-------------------------------------------------
|
||||
// spc1000_vdp_exp_device - constructor
|
||||
//-------------------------------------------------
|
||||
|
||||
spc1000_vdp_exp_device::spc1000_vdp_exp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
|
||||
: device_t(mconfig, SPC1000_VDP_EXP, "SPC1000 VDP expansion", tag, owner, clock, "spc1000_vdp_exp", __FILE__),
|
||||
device_spc1000_card_interface(mconfig, *this),
|
||||
m_vdp(*this, "tms")
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_start - device-specific startup
|
||||
//-------------------------------------------------
|
||||
|
||||
void spc1000_vdp_exp_device::device_start()
|
||||
{
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_reset - device-specific reset
|
||||
//-------------------------------------------------
|
||||
|
||||
void spc1000_vdp_exp_device::device_reset()
|
||||
{
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
read
|
||||
-------------------------------------------------*/
|
||||
READ8_MEMBER(spc1000_vdp_exp_device::read)
|
||||
{
|
||||
if (!(offset & 0x800))
|
||||
return 0xff;
|
||||
|
||||
if (offset & 1)
|
||||
return m_vdp->register_read(space, offset);
|
||||
else
|
||||
return m_vdp->vram_read(space, offset);
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// write
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER(spc1000_vdp_exp_device::write)
|
||||
{
|
||||
if (offset & 0x800)
|
||||
{
|
||||
if (offset & 1)
|
||||
m_vdp->register_write(space, offset, data);
|
||||
else
|
||||
m_vdp->vram_write(space, offset, data);
|
||||
}
|
||||
}
|
||||
43
src/emu/bus/spc1000/vdp.h
Normal file
43
src/emu/bus/spc1000/vdp.h
Normal file
@ -0,0 +1,43 @@
|
||||
#ifndef __SPC1000_VDP_H__
|
||||
#define __SPC1000_VDP_H__
|
||||
|
||||
#include "exp.h"
|
||||
#include "video/tms9928a.h"
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
// ======================> spc1000_vdp_exp_device
|
||||
|
||||
class spc1000_vdp_exp_device : public device_t,
|
||||
public device_spc1000_card_interface
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
spc1000_vdp_exp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
|
||||
|
||||
// optional information overrides
|
||||
virtual machine_config_constructor device_mconfig_additions() const;
|
||||
|
||||
public:
|
||||
// device-level overrides
|
||||
virtual void device_start();
|
||||
virtual void device_reset();
|
||||
|
||||
virtual DECLARE_READ8_MEMBER(read);
|
||||
virtual DECLARE_WRITE8_MEMBER(write);
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER(vdp_interrupt);
|
||||
|
||||
private:
|
||||
// internal state
|
||||
required_device<tms9928a_device> m_vdp;
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
extern const device_type SPC1000_VDP_EXP;
|
||||
|
||||
#endif /* __SPC1000_VDP_H__ */
|
||||
@ -29,14 +29,16 @@ NOTE: 2014-09-13: added code from someone's modified MESS driver for floppy
|
||||
|
||||
#include "emu.h"
|
||||
#include "cpu/z80/z80.h"
|
||||
#include "video/mc6847.h"
|
||||
#include "machine/ram.h"
|
||||
#include "sound/ay8910.h"
|
||||
#include "sound/wave.h"
|
||||
#include "video/mc6847.h"
|
||||
#include "imagedev/cassette.h"
|
||||
#include "machine/ram.h"
|
||||
#include "formats/spc1000_cas.h"
|
||||
#include "machine/i8255.h"
|
||||
#include "machine/upd765.h"
|
||||
|
||||
#include "bus/spc1000/exp.h"
|
||||
#include "bus/spc1000/fdd.h"
|
||||
#include "bus/spc1000/vdp.h"
|
||||
|
||||
|
||||
class spc1000_state : public driver_device
|
||||
@ -44,14 +46,11 @@ class spc1000_state : public driver_device
|
||||
public:
|
||||
spc1000_state(const machine_config &mconfig, device_type type, const char *tag)
|
||||
: driver_device(mconfig, type, tag)
|
||||
, m_p_videoram(*this, "videoram")
|
||||
, m_vdg(*this, "mc6847")
|
||||
, m_maincpu(*this, "maincpu")
|
||||
, m_fdccpu(*this, "fdccpu")
|
||||
, m_fdc(*this, "upd765")
|
||||
, m_pio(*this, "d8255_master")
|
||||
, m_ram(*this, RAM_TAG)
|
||||
, m_vdg(*this, "mc6847")
|
||||
, m_cass(*this, "cassette")
|
||||
, m_ram(*this, RAM_TAG)
|
||||
, m_p_videoram(*this, "videoram")
|
||||
, m_io_kb(*this, "LINE")
|
||||
, m_io_joy(*this, "JOY")
|
||||
{}
|
||||
@ -64,20 +63,12 @@ public:
|
||||
DECLARE_READ8_MEMBER(porta_r);
|
||||
DECLARE_READ8_MEMBER(mc6847_videoram_r);
|
||||
DECLARE_WRITE8_MEMBER(cass_w);
|
||||
DECLARE_WRITE8_MEMBER(sd725_w);
|
||||
DECLARE_READ8_MEMBER(sd725_r);
|
||||
DECLARE_WRITE8_MEMBER(fdc_8255_b_w);
|
||||
DECLARE_READ8_MEMBER(fdc_8255_c_r);
|
||||
DECLARE_WRITE8_MEMBER(fdc_8255_c_w);
|
||||
DECLARE_READ8_MEMBER(upd765_tc_r);
|
||||
DECLARE_WRITE8_MEMBER(fdc_control_w);
|
||||
DECLARE_READ8_MEMBER(keyboard_r);
|
||||
MC6847_GET_CHARROM_MEMBER(get_char_rom)
|
||||
{
|
||||
return m_p_videoram[0x1000 + (ch & 0x7f) * 16 + line];
|
||||
}
|
||||
|
||||
required_shared_ptr<UINT8> m_p_videoram;
|
||||
private:
|
||||
UINT8 m_IPLK;
|
||||
UINT8 m_GMODE;
|
||||
@ -85,33 +76,15 @@ private:
|
||||
UINT8 *m_work_ram;
|
||||
virtual void machine_start();
|
||||
virtual void machine_reset();
|
||||
required_device<z80_device> m_maincpu;
|
||||
required_device<mc6847_base_device> m_vdg;
|
||||
required_device<cpu_device> m_maincpu;
|
||||
required_device<cpu_device> m_fdccpu;
|
||||
required_device<upd765a_device> m_fdc;
|
||||
required_device<i8255_device> m_pio;
|
||||
required_device<ram_device> m_ram;
|
||||
required_device<cassette_image_device> m_cass;
|
||||
required_device<ram_device> m_ram;
|
||||
required_shared_ptr<UINT8> m_p_videoram;
|
||||
required_ioport_array<10> m_io_kb;
|
||||
required_ioport m_io_joy;
|
||||
|
||||
floppy_image_device *m_fd0;
|
||||
floppy_image_device *m_fd1;
|
||||
|
||||
emu_timer *m_timer_tc;
|
||||
|
||||
UINT8 m_i8255_0_pc;
|
||||
UINT8 m_i8255_1_pc;
|
||||
UINT8 m_i8255_portb;
|
||||
|
||||
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
|
||||
};
|
||||
|
||||
void spc1000_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
|
||||
{
|
||||
m_fdc->tc_w(false);
|
||||
}
|
||||
|
||||
static ADDRESS_MAP_START(spc1000_mem, AS_PROGRAM, 8, spc1000_state )
|
||||
ADDRESS_MAP_UNMAP_HIGH
|
||||
AM_RANGE(0x0000, 0x7fff) AM_READ_BANK("bank1") AM_WRITE_BANK("bank2")
|
||||
@ -157,75 +130,6 @@ READ8_MEMBER(spc1000_state::gmode_r)
|
||||
return m_GMODE;
|
||||
}
|
||||
|
||||
READ8_MEMBER(spc1000_state::sd725_r)
|
||||
{
|
||||
UINT8 data = 0;
|
||||
switch (offset)
|
||||
{
|
||||
case 1:
|
||||
data = m_i8255_portb;
|
||||
break;
|
||||
case 2:
|
||||
data = m_i8255_1_pc >> 4;
|
||||
break;
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
WRITE8_MEMBER(spc1000_state::sd725_w)
|
||||
{
|
||||
switch (offset)
|
||||
{
|
||||
case 0:
|
||||
m_pio->write(space, offset+1, data);
|
||||
break;
|
||||
case 2:
|
||||
m_i8255_0_pc = data;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
READ8_MEMBER(spc1000_state::fdc_8255_c_r)
|
||||
{
|
||||
return m_i8255_0_pc >> 4;
|
||||
}
|
||||
|
||||
WRITE8_MEMBER(spc1000_state::fdc_8255_b_w)
|
||||
{
|
||||
m_i8255_portb = data;
|
||||
}
|
||||
|
||||
WRITE8_MEMBER(spc1000_state::fdc_8255_c_w)
|
||||
{
|
||||
m_i8255_1_pc = data;
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// fdc interrupt
|
||||
//-------------------------------------------------
|
||||
|
||||
READ8_MEMBER( spc1000_state::upd765_tc_r )
|
||||
{
|
||||
logerror("%s: upd765_tc_r\n", space.machine().describe_context());
|
||||
|
||||
// toggle tc on read
|
||||
m_fdc->tc_w(true);
|
||||
m_timer_tc->adjust(attotime::zero);
|
||||
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
WRITE8_MEMBER( spc1000_state::fdc_control_w )
|
||||
{
|
||||
logerror("%s: sd725_fdc_control_w(%02x)\n", space.machine().describe_context(), data);
|
||||
|
||||
// bit 0, motor on signal
|
||||
if (m_fd0)
|
||||
m_fd0->mon_w(!BIT(data, 0));
|
||||
if (m_fd1)
|
||||
m_fd1->mon_w(!BIT(data, 0));
|
||||
}
|
||||
|
||||
READ8_MEMBER( spc1000_state::keyboard_r )
|
||||
{
|
||||
// most games just read kb in $8000-$8009 but a few of them
|
||||
@ -248,8 +152,7 @@ static ADDRESS_MAP_START( spc1000_io , AS_IO, 8, spc1000_state )
|
||||
AM_RANGE(0x6000, 0x6000) AM_WRITE(cass_w)
|
||||
AM_RANGE(0x8000, 0x9fff) AM_READ(keyboard_r)
|
||||
AM_RANGE(0xa000, 0xa000) AM_READWRITE(iplk_r, iplk_w)
|
||||
AM_RANGE(0xc000, 0xc002) AM_READWRITE(sd725_r, sd725_w)
|
||||
// AM_RANGE(0xc000, 0xc003) AM_DEVREADWRITE("d8255_master", i8255_device, read, write)
|
||||
AM_RANGE(0xc000, 0xdfff) AM_DEVREADWRITE("ext1", spc1000_exp_device, read, write)
|
||||
ADDRESS_MAP_END
|
||||
|
||||
/* Input ports */
|
||||
@ -385,35 +288,24 @@ void spc1000_state::machine_start()
|
||||
|
||||
void spc1000_state::machine_reset()
|
||||
{
|
||||
|
||||
m_work_ram = auto_alloc_array_clear(machine(), UINT8, 0x10000);
|
||||
m_fdccpu->set_input_line_vector(0, 0);
|
||||
|
||||
m_fd0 = machine().device<floppy_connector>("upd765:0")->get_device();
|
||||
m_fd1 = machine().device<floppy_connector>("upd765:1")->get_device();
|
||||
|
||||
m_timer_tc = timer_alloc(1, NULL);
|
||||
m_timer_tc->adjust(attotime::never);
|
||||
|
||||
// enable rom
|
||||
m_fdccpu->space(AS_PROGRAM).install_rom(0x0000, 0xfff, 0, 0x2000, memregion("rom")->base());
|
||||
|
||||
m_IPLK = 1;
|
||||
}
|
||||
|
||||
READ8_MEMBER(spc1000_state::mc6847_videoram_r)
|
||||
{
|
||||
if (offset == ~0) return 0xff;
|
||||
if (offset == ~0)
|
||||
return 0xff;
|
||||
|
||||
// m_GMODE layout: CSS|NA|PS2|PS1|~A/G|GM0|GM1|NA
|
||||
if ( !BIT(m_GMODE, 3) )
|
||||
if (!BIT(m_GMODE, 3))
|
||||
{ // text mode (~A/G set to A)
|
||||
UINT8 data = m_p_videoram[offset+m_page+0x800];
|
||||
UINT8 data = m_p_videoram[offset + m_page + 0x800];
|
||||
m_vdg->inv_w(BIT(data, 0));
|
||||
m_vdg->css_w(BIT(data, 1));
|
||||
m_vdg->as_w (BIT(data, 2));
|
||||
m_vdg->intext_w(BIT(data, 3));
|
||||
return m_p_videoram[offset+m_page];
|
||||
return m_p_videoram[offset + m_page];
|
||||
}
|
||||
else
|
||||
{ // graphics mode: uses full 6KB of VRAM
|
||||
@ -437,27 +329,14 @@ WRITE_LINE_MEMBER( spc1000_state::irq_w )
|
||||
m_maincpu->set_input_line(0, state ? CLEAR_LINE : HOLD_LINE);
|
||||
}
|
||||
|
||||
static SLOT_INTERFACE_START( sd725_floppies )
|
||||
SLOT_INTERFACE( "sd320", EPSON_SD_320 )
|
||||
SLOT_INTERFACE_END
|
||||
|
||||
//-------------------------------------------------
|
||||
// address maps
|
||||
//-------------------------------------------------
|
||||
|
||||
static ADDRESS_MAP_START( sd725_mem, AS_PROGRAM, 8, spc1000_state )
|
||||
ADDRESS_MAP_UNMAP_HIGH
|
||||
AM_RANGE(0x0000, 0x1fff) AM_ROM
|
||||
AM_RANGE(0x2000, 0xffff) AM_RAM
|
||||
ADDRESS_MAP_END
|
||||
|
||||
static ADDRESS_MAP_START( sd725_io, AS_IO, 8, spc1000_state )
|
||||
ADDRESS_MAP_UNMAP_HIGH
|
||||
ADDRESS_MAP_GLOBAL_MASK(0xff)
|
||||
AM_RANGE(0xf8, 0xf8) AM_READWRITE(upd765_tc_r,fdc_control_w) // (R) Terminal Count Port (W) Motor Control Port
|
||||
AM_RANGE(0xfa, 0xfb) AM_DEVICE("upd765", upd765a_device, map )
|
||||
AM_RANGE(0xfc, 0xff) AM_DEVREADWRITE("d8255_master", i8255_device, read, write)
|
||||
ADDRESS_MAP_END
|
||||
extern SLOT_INTERFACE_START(spc1000_exp)
|
||||
SLOT_INTERFACE("fdd", SPC1000_FDD_EXP)
|
||||
SLOT_INTERFACE("vdp", SPC1000_VDP_EXP)
|
||||
SLOT_INTERFACE_END
|
||||
|
||||
static MACHINE_CONFIG_START( spc1000, spc1000_state )
|
||||
/* basic machine hardware */
|
||||
@ -465,27 +344,6 @@ static MACHINE_CONFIG_START( spc1000, spc1000_state )
|
||||
MCFG_CPU_PROGRAM_MAP(spc1000_mem)
|
||||
MCFG_CPU_IO_MAP(spc1000_io)
|
||||
|
||||
/* sub CPU(5 inch floppy drive) */
|
||||
MCFG_CPU_ADD("fdccpu", Z80, XTAL_4MHz) /* 4 MHz */
|
||||
MCFG_CPU_PROGRAM_MAP(sd725_mem)
|
||||
MCFG_CPU_IO_MAP(sd725_io)
|
||||
|
||||
MCFG_DEVICE_ADD("d8255_master", I8255, 0)
|
||||
MCFG_I8255_IN_PORTA_CB(DEVREAD8("d8255_master", i8255_device, pb_r))
|
||||
MCFG_I8255_IN_PORTB_CB(DEVREAD8("d8255_master", i8255_device, pa_r))
|
||||
MCFG_I8255_OUT_PORTB_CB(WRITE8(spc1000_state, fdc_8255_b_w))
|
||||
MCFG_I8255_IN_PORTC_CB(READ8(spc1000_state, fdc_8255_c_r))
|
||||
MCFG_I8255_OUT_PORTC_CB(WRITE8(spc1000_state, fdc_8255_c_w))
|
||||
|
||||
// floppy disk controller
|
||||
MCFG_UPD765A_ADD("upd765", true, true)
|
||||
MCFG_UPD765_INTRQ_CALLBACK(INPUTLINE("fdccpu", INPUT_LINE_IRQ0))
|
||||
|
||||
// floppy drives
|
||||
MCFG_FLOPPY_DRIVE_ADD("upd765:0", sd725_floppies, "sd320", floppy_image_device::default_floppy_formats)
|
||||
MCFG_FLOPPY_DRIVE_ADD("upd765:1", sd725_floppies, "sd320", floppy_image_device::default_floppy_formats)
|
||||
//CFG_SOFTWARE_LIST_ADD("disk_list","spc1000_flop")
|
||||
|
||||
/* video hardware */
|
||||
MCFG_SCREEN_MC6847_NTSC_ADD("screen", "mc6847")
|
||||
|
||||
@ -504,7 +362,10 @@ static MACHINE_CONFIG_START( spc1000, spc1000_state )
|
||||
MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
|
||||
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
|
||||
|
||||
MCFG_CASSETTE_ADD( "cassette" )
|
||||
MCFG_DEVICE_ADD("ext1", SPC1000_EXP_SLOT, 0)
|
||||
MCFG_DEVICE_SLOT_INTERFACE(spc1000_exp, NULL, false)
|
||||
|
||||
MCFG_CASSETTE_ADD("cassette")
|
||||
MCFG_CASSETTE_FORMATS(spc1000_cassette_formats)
|
||||
MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED)
|
||||
|
||||
@ -517,17 +378,14 @@ MACHINE_CONFIG_END
|
||||
|
||||
/* ROM definition */
|
||||
ROM_START( spc1000 )
|
||||
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
|
||||
ROM_LOAD( "spcall.rom", 0x0000, 0x8000, CRC(19638fc9) SHA1(489f1baa7aebf3c8c660325fb1fd790d84203284))
|
||||
|
||||
ROM_REGION( 0x10000, "fdccpu", 0)
|
||||
ROM_LOAD("sd725a.bin", 0x0000, 0x1000, CRC(96ac2eb8) SHA1(8e9d8f63a7fb87af417e95603e71cf537a6e83f1))
|
||||
ROM_REGION(0x10000, "maincpu", ROMREGION_ERASEFF)
|
||||
ROM_LOAD("spcall.rom", 0x0000, 0x8000, CRC(19638fc9) SHA1(489f1baa7aebf3c8c660325fb1fd790d84203284))
|
||||
ROM_END
|
||||
|
||||
#if 0
|
||||
ROM_START( spc1000 )
|
||||
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
|
||||
ROM_LOAD( "spcall.rom", 0x0000, 0x8000, CRC(2FBB6ECA) SHA1(cc9a076b0f00d54b2aec31f1f558b10f43ef61c8))
|
||||
ROM_REGION(0x10000, "maincpu", ROMREGION_ERASEFF)
|
||||
ROM_LOAD("spcall.rom", 0x0000, 0x8000, CRC(2FBB6ECA) SHA1(cc9a076b0f00d54b2aec31f1f558b10f43ef61c8))
|
||||
/// more roms to come...
|
||||
ROM_END
|
||||
#endif
|
||||
|
||||
@ -625,6 +625,7 @@ BUSES += SEGA8
|
||||
BUSES += SMS_CTRL
|
||||
BUSES += SMS_EXP
|
||||
BUSES += SNES
|
||||
BUSES += SPC1000
|
||||
BUSES += TI99PEB
|
||||
BUSES += TVC
|
||||
BUSES += VBOY
|
||||
|
||||
Loading…
Reference in New Issue
Block a user