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-rw-r--r--src/mame/nokia/mikromik.cpp379
1 files changed, 280 insertions, 99 deletions
diff --git a/src/mame/nokia/mikromik.cpp b/src/mame/nokia/mikromik.cpp
index 59146091532..3b278634ec3 100644
--- a/src/mame/nokia/mikromik.cpp
+++ b/src/mame/nokia/mikromik.cpp
@@ -37,24 +37,37 @@
RST6.5 8212 INT
RST7.5 DMA EOP
+ Models:
+
+ M1: 1x 160KB floppy
+ M2: 2x 160KB floppy
+ M3: 1x 320KB floppy (96 tpi, single sided)
+ M4: 2x 320KB floppy
+ M5: 1x 640KB floppy (96 tpi, double sided)
+ M6: 2x 640KB floppy
+ M7: 1x 640KB floppy + 5MB hard disk
+ M4G: 2x 320KB floppy + GDC
+ M6G: 2x 640KB floppy + GDC
+ M7G: 1x 640KB floppy + 5MB hard disk + GDC
+
+
+ ./chdman createhd -chs 306,2,32 -ss 256 -o st406.chd
+
*/
/*
TODO:
- - NEC uPD7220 GDC
+ - M7 boot floppy
- accurate video timing
- - floppy DRQ during RECALL = 0
- - PCB layout
+ - PCB layouts
- NEC uPD7201 MPSC
- - model M7 5MB hard disk
*/
#include "emu.h"
#include "mikromik.h"
-#include "machine/74259.h"
#include "softlist_dev.h"
//#define VERBOSE 1
@@ -136,17 +149,6 @@ void mm1_state::write(offs_t offset, uint8_t data)
//-------------------------------------------------
-// a8_w -
-//-------------------------------------------------
-
-void mm1_state::a8_w(int state)
-{
- LOG("IC24 A8 %u\n", state);
- m_a8 = state;
-}
-
-
-//-------------------------------------------------
// recall_w -
//-------------------------------------------------
@@ -155,81 +157,174 @@ void mm1_state::recall_w(int state)
LOG("RECALL %u\n", state);
m_recall = state;
m_fdc->reset_w(state);
+
+ if (m_recall)
+ {
+ m_dmac->dreq3_w(false);
+ }
}
//-------------------------------------------------
-// rx21_w -
+// motor_on_w -
//-------------------------------------------------
-void mm1_state::rx21_w(int state)
+void mm1_state::motor_on_w(int state)
{
- m_rx21 = state;
+ LOG("MOTOR %u\n", state);
+
+ m_floppy[0]->mon_w(!state);
+
+ if (m_floppy[1])
+ {
+ m_floppy[1]->mon_w(!state);
+ }
}
//-------------------------------------------------
-// tx21_w -
+// switch_w -
//-------------------------------------------------
-void mm1_state::tx21_w(int state)
+void mm1_state::switch_w(int state)
{
- m_tx21 = state;
-}
+ LOG("SWITCH %u\n", state);
+ m_switch = state;
-//-------------------------------------------------
-// rcl_w -
-//-------------------------------------------------
+ if (m_switch)
+ {
+ m_io->space().install_readwrite_handler(0x50, 0x50, read8sm_delegate(*this, FUNC(mm1_state::sasi_status_r)), write8sm_delegate(*this, FUNC(mm1_state::sasi_cmd_w)));
+ m_io->space().install_readwrite_handler(0x51, 0x51, emu::rw_delegate(*this, FUNC(mm1_state::sasi_data_r)), write8sm_delegate(*this, FUNC(mm1_state::sasi_data_w)));
+ }
+ else
+ {
+ m_io->space().install_device(0x50, 0x51, *m_fdc, &upd765a_device::map);
+ }
+
+ m_floppy[0]->mon_w(state);
+}
-void mm1_state::rcl_w(int state)
+uint8_t mm1_state::sasi_status_r(offs_t offset)
{
- m_rcl = state;
+ uint8_t data = 0;
+
+ data |= m_sasi->bsy_r();
+ data |= m_sasi->rst_r() << 1;
+ data |= m_sasi->msg_r() << 2;
+ data |= m_sasi->cd_r() << 3;
+ data |= m_sasi->req_r() << 4;
+ data |= m_sasi->io_r() << 5;
+ data |= m_sasi->ack_r() << 7;
+
+ //LOG("%s SASI STATUS %02x\n",machine().describe_context(),data);
+
+ return data;
}
+void mm1_state::sasi_cmd_w(offs_t offset, uint8_t data)
+{
+ LOG("%s SASI CMD %02x\n", machine().describe_context(), data);
-//-------------------------------------------------
-// intc_w -
-//-------------------------------------------------
+ m_sasi->sel_w(BIT(data, 0));
+ m_sasi->rst_w(BIT(data, 1));
+ m_sasi->atn_w(BIT(data, 2));
+}
-void mm1_state::intc_w(int state)
+uint8_t mm1_state::sasi_data_r(offs_t offset)
{
- m_intc = state;
+ uint8_t data = m_sasi->read();
+
+ LOG("%s SASI DATA R %02x\n", machine().describe_context(), data);
+
+ if (m_sasi->req_r())
+ {
+ m_sasi->ack_w(1);
+ }
+
+ return data;
}
+void mm1_state::sasi_data_w(offs_t offset, uint8_t data)
+{
+ m_sasi_data = data;
-//-------------------------------------------------
-// llen_w -
-//-------------------------------------------------
+ if (!m_sasi->io_r())
+ {
+ m_sasi->write(data);
+ }
+
+ LOG("%s SASI DATA W %02x\n", machine().describe_context(), data);
-void mm1_state::llen_w(int state)
+ if (m_sasi->req_r())
+ {
+ m_sasi->ack_w(1);
+ }
+}
+
+uint8_t mm1_state::sasi_ior3_r(offs_t offset)
{
- LOG("LLEN %u\n", state);
- m_llen = state;
+ uint8_t data = 0;
+
+ if (m_switch)
+ {
+ data = sasi_data_r(0);
+ }
+ else
+ {
+ data = m_fdc->dma_r();
+ }
+
+ return data;
}
+void mm1_state::sasi_iow3_w(offs_t offset, uint8_t data)
+{
+ if (m_switch)
+ {
+ sasi_data_w(0, data);
+ }
+ else
+ {
+ m_fdc->dma_w(data);
+ }
+}
-//-------------------------------------------------
-// motor_on_w -
-//-------------------------------------------------
+void mm1_state::sasi_bsy_w(int state)
+{
+ if (state)
+ {
+ m_sasi->sel_w(0);
+ }
+}
-void mm1_state::motor_on_w(int state)
+void mm1_state::sasi_req_w(int state)
{
- LOG("MOTOR %u\n", state);
- m_floppy[0]->mon_w(!state);
- m_floppy[1]->mon_w(!state);
+ if (!state)
+ {
+ m_sasi->ack_w(0);
+ }
+
+ m_dmac->dreq3_w(state);
}
+void mm1_state::sasi_io_w(int state)
+{
+ if (state)
+ {
+ m_sasi->write(0);
+ }
+ else
+ {
+ m_sasi->write(m_sasi_data);
+ }
+}
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
-//-------------------------------------------------
-// ADDRESS_MAP( mm1_map )
-//-------------------------------------------------
-
void mm1_state::mm1_map(address_map &map)
{
map(0x0000, 0xffff).rw(FUNC(mm1_state::read), FUNC(mm1_state::write));
@@ -243,7 +338,12 @@ void mm1_state::mmu_io_map(address_map &map)
map(0x30, 0x33).mirror(0x0c).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write));
map(0x40, 0x40).mirror(0x0f).rw(m_iop, FUNC(i8212_device::read), FUNC(i8212_device::write));
map(0x50, 0x51).mirror(0x0e).m(m_fdc, FUNC(upd765a_device::map));
- map(0x60, 0x67).mirror(0x08).w("outlatch", FUNC(ls259_device::write_d0));
+ map(0x60, 0x67).mirror(0x08).w(m_outlatch, FUNC(ls259_device::write_d0));
+}
+
+void mm1_state::mm1g_mmu_io_map(address_map &map)
+{
+ mmu_io_map(map);
map(0x70, 0x71).mirror(0x0e).rw(m_hgdc, FUNC(upd7220_device::read), FUNC(upd7220_device::write));
}
@@ -382,17 +482,14 @@ void mm1_state::floppy_formats(format_registration &fr)
fr.add_mfm_containers();
fr.add(FLOPPY_MM1_FORMAT);
}
-/*
-void mm2_state::floppy_formats(format_registration &fr)
- FLOPPY_MM2_FORMAT
-}
-*/
-static void mm1_floppies(device_slot_interface &device)
+
+static void mm1m4_floppies(device_slot_interface &device)
{
- device.option_add("525qd", FLOPPY_525_QD);
+ device.option_add("525", FLOPPY_525_QD);
}
+
//**************************************************************************
// MACHINE INITIALIZATION
//**************************************************************************
@@ -403,20 +500,19 @@ static void mm1_floppies(device_slot_interface &device)
void mm1_state::machine_start()
{
- // register for state saving
- save_item(NAME(m_llen));
+ // state saving
+ save_item(NAME(m_a8));
+ save_item(NAME(m_leen));
save_item(NAME(m_intc));
save_item(NAME(m_rx21));
save_item(NAME(m_tx21));
save_item(NAME(m_rcl));
save_item(NAME(m_recall));
-}
-
-
-void mm1_state::machine_reset()
-{
- // reset FDC
- m_fdc->reset();
+ save_item(NAME(m_dack3));
+ save_item(NAME(m_tc));
+ save_item(NAME(m_fdc_tc));
+ save_item(NAME(m_switch));
+ save_item(NAME(m_sasi_data));
}
@@ -425,11 +521,7 @@ void mm1_state::machine_reset()
// MACHINE DRIVERS
//**************************************************************************
-//-------------------------------------------------
-// machine_config( mm1 )
-//-------------------------------------------------
-
-void mm1_state::mm1(machine_config &config)
+void mm1_state::common(machine_config &config)
{
// basic system hardware
I8085A(config, m_maincpu, 6.144_MHz_XTAL);
@@ -449,15 +541,15 @@ void mm1_state::mm1(machine_config &config)
m_iop->int_wr_callback().set_inputline(m_maincpu, I8085_RST65_LINE);
m_iop->di_rd_callback().set(KB_TAG, FUNC(mm1_keyboard_device::read));
- ls259_device &outlatch(LS259(config, "outlatch"));
- outlatch.q_out_cb<0>().set(FUNC(mm1_state::a8_w)); // IC24 A8
- outlatch.q_out_cb<1>().set(FUNC(mm1_state::recall_w)); // RECALL
- outlatch.q_out_cb<2>().set(FUNC(mm1_state::rx21_w)); // _RV28/RX21
- outlatch.q_out_cb<3>().set(FUNC(mm1_state::tx21_w)); // _TX21
- outlatch.q_out_cb<4>().set(FUNC(mm1_state::rcl_w)); // _RCL
- outlatch.q_out_cb<5>().set(FUNC(mm1_state::intc_w)); // _INTC
- outlatch.q_out_cb<6>().set(FUNC(mm1_state::llen_w)); // LLEN
- outlatch.q_out_cb<7>().set(FUNC(mm1_state::motor_on_w)); // MOTOR ON
+ LS259(config, m_outlatch);
+ m_outlatch->q_out_cb<0>().set(FUNC(mm1_state::a8_w)); // IC24 A8
+ m_outlatch->q_out_cb<1>().set(FUNC(mm1_state::recall_w)); // RECALL
+ m_outlatch->q_out_cb<2>().set(FUNC(mm1_state::rx21_w)); // _RV28/RX21
+ m_outlatch->q_out_cb<3>().set(FUNC(mm1_state::tx21_w)); // _TX21
+ m_outlatch->q_out_cb<4>().set(FUNC(mm1_state::rcl_w)); // _RCL
+ m_outlatch->q_out_cb<5>().set(FUNC(mm1_state::intc_w)); // _INTC
+ m_outlatch->q_out_cb<6>().set(FUNC(mm1_state::leen_w)); // LEEN
+ m_outlatch->q_out_cb<7>().set(FUNC(mm1_state::motor_on_w)); // MOTOR ON
AM9517A(config, m_dmac, 6.144_MHz_XTAL/2);
m_dmac->out_hreq_callback().set(FUNC(mm1_state::dma_hrq_w));
@@ -482,8 +574,6 @@ void mm1_state::mm1(machine_config &config)
UPD765A(config, m_fdc, 16_MHz_XTAL/2, true, true);
m_fdc->intrq_wr_callback().set_inputline(m_maincpu, I8085_RST55_LINE);
m_fdc->drq_wr_callback().set(m_dmac, FUNC(am9517a_device::dreq3_w));
- FLOPPY_CONNECTOR(config, UPD765_TAG ":0", mm1_floppies, "525qd", mm1_state::floppy_formats).enable_sound(true);
- FLOPPY_CONNECTOR(config, UPD765_TAG ":1", mm1_floppies, "525qd", mm1_state::floppy_formats).enable_sound(true);
UPD7201(config, m_mpsc, 6.144_MHz_XTAL/2);
m_mpsc->out_txda_callback().set(m_rs232a, FUNC(rs232_port_device::write_txd));
@@ -508,30 +598,86 @@ void mm1_state::mm1(machine_config &config)
SOFTWARE_LIST(config, "flop_list").set_original("mm1_flop");
}
+void mm1_state::mm1(machine_config &config)
+{
+ common(config);
+ mm1_video(config);
+}
-//-------------------------------------------------
-// machine_config( mm1m6 )
-//-------------------------------------------------
+void mm1_state::mm1g(machine_config &config)
+{
+ common(config);
+ mm1g_video(config);
+
+ m_io->set_addrmap(0, &mm1_state::mm1g_mmu_io_map);
+}
+
+void mm1_state::mm1_320k_dual(machine_config &config)
+{
+ FLOPPY_CONNECTOR(config, UPD765_TAG ":0", mm1m4_floppies, "525", mm1_state::floppy_formats).enable_sound(true);
+ FLOPPY_CONNECTOR(config, UPD765_TAG ":1", mm1m4_floppies, "525", mm1_state::floppy_formats).enable_sound(true);
+}
+
+void mm1_state::mm1m4(machine_config &config)
+{
+ mm1(config);
+ mm1_320k_dual(config);
+}
+
+void mm1_state::mm1m4g(machine_config &config)
+{
+ mm1g(config);
+ mm1_320k_dual(config);
+}
+
+void mm1_state::mm1_640k_dual(machine_config &config)
+{
+ FLOPPY_CONNECTOR(config, UPD765_TAG ":0", mm1m4_floppies, "525", mm1_state::floppy_formats).enable_sound(true);
+ FLOPPY_CONNECTOR(config, UPD765_TAG ":1", mm1m4_floppies, "525", mm1_state::floppy_formats).enable_sound(true);
+}
void mm1_state::mm1m6(machine_config &config)
{
mm1(config);
- // video hardware
- mm1m6_video(config);
+ mm1_640k_dual(config);
}
+void mm1_state::mm1m6g(machine_config &config)
+{
+ mm1g(config);
+ mm1_640k_dual(config);
+}
-//-------------------------------------------------
-// machine_config( mm1m7 )
-//-------------------------------------------------
+void mm1_state::mm1_640k_winchester(machine_config &config)
+{
+ FLOPPY_CONNECTOR(config, UPD765_TAG ":0", mm1m4_floppies, "525", mm1_state::floppy_formats).enable_sound(true);
+
+ NSCSI_BUS(config, "sasi");
+ NSCSI_CONNECTOR(config, "sasi:0", default_scsi_devices, "s1410");
+ NSCSI_CONNECTOR(config, "sasi:7", default_scsi_devices, "scsicb", true)
+ .option_add_internal("scsicb", NSCSI_CB)
+ .machine_config([this](device_t* device) {
+ downcast<nscsi_callback_device&>(*device).bsy_callback().set(*this, FUNC(mm1_state::sasi_bsy_w));
+ downcast<nscsi_callback_device&>(*device).req_callback().set(*this, FUNC(mm1_state::sasi_req_w));
+ downcast<nscsi_callback_device&>(*device).io_callback().set(*this, FUNC(mm1_state::sasi_io_w));
+ });
+
+ m_outlatch->q_out_cb<7>().set(FUNC(mm1_state::switch_w));
+
+ m_dmac->in_ior_callback<3>().set(*this, FUNC(mm1_state::sasi_ior3_r));
+ m_dmac->out_iow_callback<3>().set(*this, FUNC(mm1_state::sasi_iow3_w));
+}
void mm1_state::mm1m7(machine_config &config)
{
mm1(config);
- // video hardware
- mm1m6_video(config);
+ mm1_640k_winchester(config);
+}
- // TODO hard disk
+void mm1_state::mm1m7g(machine_config &config)
+{
+ mm1g(config);
+ mm1_640k_winchester(config);
}
@@ -541,6 +687,24 @@ void mm1_state::mm1m7(machine_config &config)
//**************************************************************************
//-------------------------------------------------
+// ROM( mm1m4 )
+//-------------------------------------------------
+
+ROM_START( mm1m4 )
+ ROM_REGION( 0x4000, I8085A_TAG, 0 ) // BIOS
+ ROM_LOAD( "9081b.ic43", 0x0000, 0x2000, CRC(60841940) SHA1(d755e9be53f27f41d1e93b4c1793f9ea6a3e1229) )
+
+ ROM_REGION( 0x200, "address", 0 ) // address decoder
+ ROM_LOAD( "720793a.ic24", 0x000, 0x200, CRC(deea87a6) SHA1(8f19e43252c9a0b1befd02fc9d34fe1437477f3a) )
+
+ ROM_REGION( 0x1000, "chargen", 0 ) // character generator
+ ROM_LOAD( "6807b.ic61", 0x0000, 0x1000, CRC(32b36220) SHA1(8fe7a181badea3f7e656dfaea21ee9e4c9baf0f1) )
+ROM_END
+
+#define rom_mm1m4g rom_mm1m4
+
+
+//-------------------------------------------------
// ROM( mm1m6 )
//-------------------------------------------------
@@ -549,18 +713,31 @@ ROM_START( mm1m6 )
ROM_LOAD( "9081b.ic2", 0x0000, 0x2000, CRC(2955feb3) SHA1(946a6b0b8fb898be3f480c04da33d7aaa781152b) )
ROM_REGION( 0x200, "address", 0 ) // address decoder
- ROM_LOAD( "720793a.ic24", 0x0000, 0x0200, CRC(deea87a6) SHA1(8f19e43252c9a0b1befd02fc9d34fe1437477f3a) )
+ ROM_LOAD( "720793a.ic24", 0x000, 0x200, CRC(deea87a6) SHA1(8f19e43252c9a0b1befd02fc9d34fe1437477f3a) )
ROM_REGION( 0x1000, "chargen", 0 ) // character generator
ROM_LOAD( "6807b.ic61", 0x0000, 0x1000, CRC(32b36220) SHA1(8fe7a181badea3f7e656dfaea21ee9e4c9baf0f1) )
ROM_END
+#define rom_mm1m6g rom_mm1m6
+
//-------------------------------------------------
// ROM( mm1m7 )
//-------------------------------------------------
-#define rom_mm1m7 rom_mm1m6
+ROM_START( mm1m7 )
+ ROM_REGION( 0x4000, I8085A_TAG, 0 ) // BIOS
+ ROM_LOAD( "9057c.ic2", 0x0000, 0x2000, CRC(89bbc042) SHA1(7e8800c94934b81ce08b7af862e1159e0517684d) )
+
+ ROM_REGION( 0x200, "address", 0 ) // address decoder
+ ROM_LOAD( "726972b.ic24", 0x000, 0x200, CRC(2487d4ca) SHA1(e883a2e9540c31abba3d7f3bc23a48941f655ea0) )
+
+ ROM_REGION( 0x1000, "chargen", 0 ) // character generator
+ ROM_LOAD( "6807b.ic61", 0x0000, 0x1000, CRC(32b36220) SHA1(8fe7a181badea3f7e656dfaea21ee9e4c9baf0f1) )
+ROM_END
+
+#define rom_mm1m7g rom_mm1m7
@@ -568,6 +745,10 @@ ROM_END
// SYSTEM DRIVERS
//**************************************************************************
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1981, mm1m6, 0, 0, mm1m6, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M6", MACHINE_SUPPORTS_SAVE )
-COMP( 1981, mm1m7, mm1m6, 0, mm1m7, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M7", MACHINE_SUPPORTS_SAVE )
+// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
+COMP( 1981, mm1m4, 0, 0, mm1m4, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M4", MACHINE_SUPPORTS_SAVE )
+COMP( 1981, mm1m4g, mm1m4, 0, mm1m4g, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M4G", MACHINE_SUPPORTS_SAVE )
+COMP( 1981, mm1m6, 0, 0, mm1m6, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M6", MACHINE_SUPPORTS_SAVE )
+COMP( 1981, mm1m6g, mm1m6, 0, mm1m6g, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M6G", MACHINE_SUPPORTS_SAVE )
+COMP( 1981, mm1m7, 0, 0, mm1m7, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M7", MACHINE_SUPPORTS_SAVE )
+COMP( 1981, mm1m7g, mm1m7, 0, mm1m7g, mm1, mm1_state, empty_init, "Nokia Data", "MikroMikko 1 M7G", MACHINE_SUPPORTS_SAVE )