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Diffstat (limited to 'src/mame/drivers/miniframe.cpp')
-rw-r--r--src/mame/drivers/miniframe.cpp281
1 files changed, 0 insertions, 281 deletions
diff --git a/src/mame/drivers/miniframe.cpp b/src/mame/drivers/miniframe.cpp
deleted file mode 100644
index a3b4432dbee..00000000000
--- a/src/mame/drivers/miniframe.cpp
+++ /dev/null
@@ -1,281 +0,0 @@
-// license:GPL-2.0+
-// copyright-holders:Dirk Best, R. Belmont
-/***************************************************************************
-
- Convergent Miniframe
-
- Preliminary driver by R. Belmont based on unixpc.cpp by Dirk Best & R. Belmont
-
-***************************************************************************/
-
-
-#include "emu.h"
-#include "cpu/m68000/m68000.h"
-#include "imagedev/floppy.h"
-#include "machine/ram.h"
-#include "machine/wd_fdc.h"
-#include "machine/bankdev.h"
-#include "machine/pit8253.h"
-#include "machine/pic8259.h"
-#include "screen.h"
-
-/***************************************************************************
- DRIVER STATE
-***************************************************************************/
-
-class miniframe_state : public driver_device
-{
-public:
- miniframe_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_ram(*this, RAM_TAG)
- , m_wd2797(*this, "wd2797")
- , m_floppy(*this, "wd2797:0:525dd")
- , m_ramrombank(*this, "ramrombank")
- , m_mapram(*this, "mapram")
- { }
-
- void miniframe(machine_config &config);
-
-private:
- required_device<m68010_device> m_maincpu;
- required_device<ram_device> m_ram;
- required_device<wd2797_device> m_wd2797;
- required_device<floppy_image_device> m_floppy;
- required_device<address_map_bank_device> m_ramrombank;
-
- uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- virtual void machine_start() override;
- virtual void machine_reset() override;
-
- DECLARE_READ16_MEMBER(ram_mmu_r);
- DECLARE_WRITE16_MEMBER(ram_mmu_w);
-
- DECLARE_WRITE16_MEMBER(general_ctrl_w);
-
- DECLARE_WRITE_LINE_MEMBER( wd2797_intrq_w );
- DECLARE_WRITE_LINE_MEMBER( wd2797_drq_w );
-
- required_shared_ptr<uint16_t> m_mapram;
-
- void miniframe_mem(address_map &map);
- void ramrombank_map(address_map &map);
-
- uint16_t *m_ramptr;
- uint32_t m_ramsize;
- uint16_t m_diskdmasize;
- uint32_t m_diskdmaptr;
- bool m_fdc_intrq;
-};
-
-
-/***************************************************************************
- MEMORY
-***************************************************************************/
-
-static constexpr unsigned MMU_MAX_PAGES = 1024;
-static constexpr uint16_t MMU_WRITE_ENABLE = 0x8000;
-static constexpr uint16_t MMU_STATUS_MASK = 0x6000;
-static constexpr uint16_t MMU_STATUS_NOT_PRESENT = 0x0000;
-static constexpr uint16_t MMU_STATUS_PRESENT_NOT_ACCESSED = 0x2000;
-static constexpr uint16_t MMU_STATUS_ACCESSED_NOT_WRITTEN = 0x4000;
-static constexpr uint16_t MMU_STATUS_ACCESSED_WRITTEN = 0x6000;
-
-READ16_MEMBER( miniframe_state::ram_mmu_r )
-{
- uint8_t fc = m_maincpu->get_fc();
- uint16_t mapentry = m_mapram[(offset >> 11) & 0x7ff];
-
- if ((offset < ((512*1024)>>1)) && (fc != M68K_FC_SUPERVISOR_DATA) && (fc != M68K_FC_SUPERVISOR_PROGRAM))
- {
- fatalerror("mmu: user mode access to lower 512K, need to generate a fault\n");
- }
-
- if ((mapentry & MMU_STATUS_MASK) != MMU_STATUS_NOT_PRESENT)
- {
- uint32_t addr = (offset & 0x7ff) | ((mapentry & 0xfff) << 11);
- //printf("mmu_r: orig %x entry %04x xlate %x\n", offset, mapentry, addr);
-
- // indicate page has been read
- if ((mapentry & MMU_STATUS_MASK) == MMU_STATUS_PRESENT_NOT_ACCESSED)
- {
- m_mapram[(offset >> 11) & 0x7ff] &= ~MMU_STATUS_MASK;
- m_mapram[(offset >> 11) & 0x7ff] |= MMU_STATUS_ACCESSED_NOT_WRITTEN;
- }
-
- return m_ramptr[addr];
- }
- else
- {
- fatalerror("miniframe: invalid MMU page accessed, need to throw a fault\n");
- }
-}
-
-WRITE16_MEMBER( miniframe_state::ram_mmu_w )
-{
- uint8_t fc = m_maincpu->get_fc();
- uint16_t mapentry = m_mapram[(offset >> 11) & 0x7ff];
-
- if ((offset < ((512*1024)>>1)) && (fc != M68K_FC_SUPERVISOR_DATA) && (fc != M68K_FC_SUPERVISOR_PROGRAM))
- {
- fatalerror("mmu: user mode access to lower 512K, need to generate a fault\n");
- }
-
- if ((mapentry & MMU_STATUS_MASK) != MMU_STATUS_NOT_PRESENT)
- {
- uint32_t addr = (offset & 0x7ff) | ((mapentry & 0xfff) << 11);
- //printf("mmu_w: orig %x entry %04x xlate %x\n", offset, mapentry, addr);
-
- if (!(mapentry & MMU_WRITE_ENABLE) && (fc != M68K_FC_SUPERVISOR_PROGRAM) && (fc != M68K_FC_SUPERVISOR_DATA))
- {
- fatalerror("mmu: write protection violation, need to throw a fault\n");
- }
-
- // indicate page has been written
- // we know it's OK to just OR this
- m_mapram[(offset >> 11) & 0x7ff] |= MMU_STATUS_ACCESSED_WRITTEN;
-
- COMBINE_DATA(&m_ramptr[addr]);
- }
- else
- {
- fatalerror("miniframe: invalid MMU page accessed, need to throw a fault\n");
- }
-}
-
-WRITE16_MEMBER( miniframe_state::general_ctrl_w )
-{
- if (data & 0x1000) // ROM mirror at 0 if set
- {
- m_ramrombank->set_bank(1);
- }
- else
- {
- m_ramrombank->set_bank(0);
- }
-
- logerror("%x to general_ctrl_w\n", data);
-}
-
-void miniframe_state::machine_start()
-{
- m_ramptr = (uint16_t *)m_ram->pointer();
- m_ramsize = m_ram->size();
-}
-
-void miniframe_state::machine_reset()
-{
- // force ROM into lower mem on reset
- m_ramrombank->set_bank(0);
-
- // invalidate all pages by clearing all entries
- memset(m_mapram, 0, MMU_MAX_PAGES * sizeof(uint16_t));
-}
-
-/***************************************************************************
- VIDEO
-***************************************************************************/
-
-uint32_t miniframe_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- return 0;
-}
-
-
-/***************************************************************************
- ADDRESS MAPS
-***************************************************************************/
-
-void miniframe_state::miniframe_mem(address_map &map)
-{
- map(0x000000, 0x3fffff).m(m_ramrombank, FUNC(address_map_bank_device::amap16));
- map(0x400000, 0x4007ff).ram().share("mapram");
- map(0x450000, 0x450001).w(FUNC(miniframe_state::general_ctrl_w));
- map(0x800000, 0x81ffff).rom().region("bootrom", 0);
- map(0xc00000, 0xc00007).rw("pit8253", FUNC(pit8253_device::read), FUNC(pit8253_device::write)).umask16(0x00ff);
- map(0xc40000, 0xc40007).rw("baudgen", FUNC(pit8253_device::read), FUNC(pit8253_device::write)).umask16(0x00ff);
- map(0xc90000, 0xc90003).rw("pic8259", FUNC(pic8259_device::read), FUNC(pic8259_device::write)).umask16(0x00ff);
-}
-
-void miniframe_state::ramrombank_map(address_map &map)
-{
- map(0x000000, 0x3fffff).rom().region("bootrom", 0);
- map(0x400000, 0x7fffff).rw(FUNC(miniframe_state::ram_mmu_r), FUNC(miniframe_state::ram_mmu_w));
-}
-
-/***************************************************************************
- INPUT PORTS
-***************************************************************************/
-
-static INPUT_PORTS_START( miniframe )
-INPUT_PORTS_END
-
-
-/***************************************************************************
- MACHINE DRIVERS
-***************************************************************************/
-
-static void miniframe_floppies(device_slot_interface &device)
-{
- device.option_add("525dd", FLOPPY_525_DD);
-}
-
-void miniframe_state::miniframe(machine_config &config)
-{
- // basic machine hardware
- M68010(config, m_maincpu, XTAL(10'000'000));
- m_maincpu->set_addrmap(AS_PROGRAM, &miniframe_state::miniframe_mem);
-
- // internal ram
- RAM(config, RAM_TAG).set_default_size("1M").set_extra_options("2M");
-
- // RAM/ROM bank
- ADDRESS_MAP_BANK(config, "ramrombank").set_map(&miniframe_state::ramrombank_map).set_options(ENDIANNESS_BIG, 16, 32, 0x400000);
-
- // floppy
- WD2797(config, m_wd2797, 1000000);
-// m_wd2797->intrq_wr_callback().set(FUNC(miniframe_state::wd2797_intrq_w));
-// m_wd2797->drq_wr_callback().set(FUNC(miniframe_state::wd2797_drq_w));
- FLOPPY_CONNECTOR(config, "wd2797:0", miniframe_floppies, "525dd", floppy_image_device::default_floppy_formats);
-
- // 8263s
- pit8253_device &pit8253(PIT8253(config, "pit8253", 0));
- pit8253.set_clk<0>(76800);
- pit8253.set_clk<1>(76800);
- pit8253.out_handler<0>().set("pic8259", FUNC(pic8259_device::ir4_w)); // FIXME: fighting for IR4 - error, or needs input merger?
- // chain clock 1 output into clock 2
- pit8253.out_handler<1>().set("pit8253", FUNC(pit8253_device::write_clk2));
- // and ir4 on the PIC
- pit8253.out_handler<1>().append("pic8259", FUNC(pic8259_device::ir4_w));
-
- pit8253_device &baudgen(PIT8253(config, "baudgen", 0));
- baudgen.set_clk<0>(1228800);
- baudgen.set_clk<1>(1228800);
- baudgen.set_clk<2>(1228800);
-
- // PIC8259s
- pic8259_device &pic8259(PIC8259(config, "pic8259", 0));
- pic8259.out_int_callback().set_inputline(m_maincpu, M68K_IRQ_4);
- pic8259.in_sp_callback().set_constant(1);
-}
-
-
-/***************************************************************************
- ROM DEFINITIONS
-***************************************************************************/
-
-ROM_START( minifram )
- ROM_REGION16_BE(0x400000, "bootrom", 0)
- ROM_LOAD16_BYTE("72-00357.bin", 0x000001, 0x002000, CRC(17c2749c) SHA1(972b5300b4d6ec65536910eab2b8550b9df9bb4d))
- ROM_LOAD16_BYTE("72-00356.bin", 0x000000, 0x002000, CRC(28b6c23a) SHA1(479e739a8154b6754e2e9b1fcfeb99d6ceaf9dbe))
-ROM_END
-
-
-/***************************************************************************
- GAME DRIVERS
-***************************************************************************/
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1985, minifram, 0, 0, miniframe, miniframe, miniframe_state, empty_init, "Convergent", "Miniframe", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )