diff options
Diffstat (limited to 'src/mame/drivers/macquadra700.cpp')
-rw-r--r-- | src/mame/drivers/macquadra700.cpp | 1045 |
1 files changed, 0 insertions, 1045 deletions
diff --git a/src/mame/drivers/macquadra700.cpp b/src/mame/drivers/macquadra700.cpp deleted file mode 100644 index 2c373fbbaf6..00000000000 --- a/src/mame/drivers/macquadra700.cpp +++ /dev/null @@ -1,1045 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:R. Belmont -/**************************************************************************** - - drivers/macquadra700.cpp - Mac Quadra 700 emulation. (900/950 are IOP-based and closer to the IIfx) - - By R. Belmont - -****************************************************************************/ - -#include "emu.h" - -#include "machine/macrtc.h" -#include "cpu/m68000/m68000.h" -#include "machine/6522via.h" -#include "machine/ram.h" -#include "machine/timer.h" -#include "machine/z80scc.h" -#include "machine/macadb.h" -#include "machine/applefdintf.h" -#include "machine/swim1.h" -#include "machine/dp83932c.h" -#include "machine/nscsi_bus.h" -#include "machine/ncr5390.h" -#include "sound/asc.h" -#include "formats/ap_dsk35.h" - -#include "bus/nscsi/cd.h" -#include "bus/nscsi/hd.h" - -#include "bus/nubus/nubus.h" -#include "bus/nubus/nubus_48gc.h" -#include "bus/nubus/nubus_cb264.h" -#include "bus/nubus/nubus_vikbw.h" -#include "bus/nubus/nubus_specpdq.h" -#include "bus/nubus/nubus_m2hires.h" -#include "bus/nubus/nubus_spec8.h" -#include "bus/nubus/nubus_radiustpd.h" -#include "bus/nubus/nubus_wsportrait.h" -#include "bus/nubus/nubus_asntmc3b.h" -#include "bus/nubus/nubus_image.h" -#include "bus/nubus/nubus_m2video.h" -#include "bus/nubus/bootbug.h" -#include "bus/nubus/quadralink.h" -#include "bus/nubus/laserview.h" - -#include "emupal.h" -#include "screen.h" -#include "softlist.h" -#include "speaker.h" - -#define C7M (7833600) -#define C15M (C7M*2) -#define C32M (C15M*2) - -class macquadra_state : public driver_device -{ -public: - macquadra_state(const machine_config &mconfig, device_type type, const char *tag) : - driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_via1(*this, "via1"), - m_via2(*this, "via2"), - m_macadb(*this, "macadb"), - m_ram(*this, RAM_TAG), - m_swim(*this, "fdc"), - m_floppy(*this, "fdc:%d", 0U), - m_rtc(*this,"rtc"), - m_scsibus1(*this, "scsi1"), - m_ncr1(*this, "scsi1:7:ncr5394"), - m_sonic(*this, "sonic"), - m_screen(*this, "screen"), - m_palette(*this, "palette"), - m_easc(*this, "easc"), - m_scc(*this, "scc"), - m_vram(*this, "vram"), - m_cur_floppy(nullptr), - m_hdsel(0) - { - } - - void macqd700(machine_config &config); - void quadra700_map(address_map &map); - - void init_macqd700(); - -private: - required_device<m68040_device> m_maincpu; - required_device<via6522_device> m_via1, m_via2; - optional_device<macadb_device> m_macadb; - required_device<ram_device> m_ram; - required_device<applefdintf_device> m_swim; - required_device_array<floppy_connector, 2> m_floppy; - required_device<rtc3430042_device> m_rtc; - required_device<nscsi_bus_device> m_scsibus1; - required_device<ncr53cf94_device> m_ncr1; - required_device<dp83932c_device> m_sonic; - required_device<screen_device> m_screen; - required_device<palette_device> m_palette; - required_device<asc_device> m_easc; - required_device<z80scc_device> m_scc; - required_shared_ptr<uint32_t> m_vram; - - virtual void machine_start() override; - virtual void machine_reset() override; - virtual void video_start() override; - virtual void video_reset() override; - - uint32_t screen_update_dafb(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - uint32_t dafb_r(offs_t offset, uint32_t mem_mask = ~0); - void dafb_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0); - uint32_t dafb_dac_r(offs_t offset, uint32_t mem_mask = ~0); - void dafb_dac_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0); - void dafb_recalc_ints(); - - TIMER_CALLBACK_MEMBER(dafb_vbl_tick); - TIMER_CALLBACK_MEMBER(dafb_cursor_tick); - - u32 *m_ram_ptr, *m_rom_ptr; - u32 m_ram_mask, m_ram_size, m_rom_size; - - emu_timer *m_vbl_timer, *m_cursor_timer, *m_6015_timer; - - uint16_t m_cursor_line; - uint16_t m_dafb_int_status; - int m_dafb_scsi1_drq, m_dafb_scsi2_drq; - uint8_t m_dafb_mode; - uint32_t m_dafb_base, m_dafb_stride; - uint32_t m_dafb_colors[3], m_dafb_count, m_dafb_clutoffs, m_dafb_montype, m_dafb_vbltime; - uint32_t m_dafb_palette[256]; - - DECLARE_WRITE_LINE_MEMBER(nubus_irq_9_w); - DECLARE_WRITE_LINE_MEMBER(nubus_irq_a_w); - DECLARE_WRITE_LINE_MEMBER(nubus_irq_b_w); - DECLARE_WRITE_LINE_MEMBER(nubus_irq_c_w); - DECLARE_WRITE_LINE_MEMBER(nubus_irq_d_w); - DECLARE_WRITE_LINE_MEMBER(nubus_irq_e_w); - void nubus_slot_interrupt(uint8_t slot, uint32_t state); - int m_via2_ca1_hack, m_nubus_irq_state; - - WRITE_LINE_MEMBER(adb_irq_w) { m_adb_irq_pending = state; } - int m_adb_irq_pending; - - DECLARE_WRITE_LINE_MEMBER(irq_539x_1_w); - DECLARE_WRITE_LINE_MEMBER(irq_539x_2_w); - DECLARE_WRITE_LINE_MEMBER(drq_539x_1_w); - DECLARE_WRITE_LINE_MEMBER(drq_539x_2_w); - - floppy_image_device *m_cur_floppy; - int m_hdsel; - - uint16_t mac_via_r(offs_t offset); - void mac_via_w(offs_t offset, uint16_t data, uint16_t mem_mask); - uint16_t mac_via2_r(offs_t offset); - void mac_via2_w(offs_t offset, uint16_t data, uint16_t mem_mask); - uint8_t mac_via_in_a(); - uint8_t mac_via_in_b(); - void mac_via_out_a(uint8_t data); - void mac_via_out_b(uint8_t data); - uint8_t mac_via2_in_a(); - uint8_t mac_via2_in_b(); - void mac_via2_out_a(uint8_t data); - void mac_via2_out_b(uint8_t data); - void mac_via_sync(); - void field_interrupts(); - DECLARE_WRITE_LINE_MEMBER(mac_via_irq); - DECLARE_WRITE_LINE_MEMBER(mac_via2_irq); - TIMER_CALLBACK_MEMBER(mac_6015_tick); - WRITE_LINE_MEMBER(via_cb2_w) { m_macadb->adb_data_w(state); } - int m_via_interrupt, m_via2_interrupt, m_scc_interrupt, m_last_taken_interrupt; - int m_irq_count, m_ca2_data; - - uint32_t rom_switch_r(offs_t offset); - bool m_overlay; - - uint16_t mac_scc_r(offs_t offset) - { - mac_via_sync(); - uint16_t result = m_scc->dc_ab_r(offset); - return (result << 8) | result; - } - void mac_scc_2_w(offs_t offset, uint16_t data) { mac_via_sync(); m_scc->dc_ab_w(offset, data >> 8); } - - void phases_w(uint8_t phases); - void devsel_w(uint8_t devsel); - - uint16_t swim_r(offs_t offset, u16 mem_mask) - { - if (!machine().side_effects_disabled()) - { - m_maincpu->adjust_icount(-5); - } - - u16 result = m_swim->read((offset >> 8) & 0xf); - return result << 8; - } - void swim_w(offs_t offset, u16 data, u16 mem_mask) - { - if (ACCESSING_BITS_0_7) - m_swim->write((offset >> 8) & 0xf, data & 0xff); - else - m_swim->write((offset >> 8) & 0xf, data>>8); - } - - uint8_t mac_5396_r(offs_t offset); - void mac_5396_w(offs_t offset, uint8_t data); -}; - -void macquadra_state::field_interrupts() -{ - int take_interrupt = -1; - - if (m_scc_interrupt) - { - take_interrupt = 4; - } - else if (m_via2_interrupt) - { - take_interrupt = 2; - } - else if (m_via_interrupt) - { - take_interrupt = 1; - } - - if (m_last_taken_interrupt > -1) - { - m_maincpu->set_input_line(m_last_taken_interrupt, CLEAR_LINE); - m_last_taken_interrupt = -1; - } - - if (take_interrupt > -1) - { - m_maincpu->set_input_line(take_interrupt, ASSERT_LINE); - m_last_taken_interrupt = take_interrupt; - } -} - -void macquadra_state::machine_start() -{ - m_ram_ptr = (u32*)m_ram->pointer(); - m_ram_size = m_ram->size()>>1; - m_ram_mask = m_ram_size - 1; - m_rom_ptr = (u32*)memregion("bootrom")->base(); - m_rom_size = memregion("bootrom")->bytes(); - m_via_interrupt = m_via2_interrupt = m_scc_interrupt = 0; - m_last_taken_interrupt = -1; - m_irq_count = m_ca2_data = 0; - - m_6015_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(macquadra_state::mac_6015_tick),this)); - m_6015_timer->adjust(attotime::never); -} - -void macquadra_state::machine_reset() -{ - m_nubus_irq_state = 0xff; - m_via2_ca1_hack = 1; - m_via2->write_ca1(1); - m_via2->write_cb1(1); - m_overlay = true; - m_via_interrupt = m_via2_interrupt = m_scc_interrupt = 0; - m_last_taken_interrupt = -1; - m_irq_count = m_ca2_data = 0; - - // put ROM mirror at 0 - address_space& space = m_maincpu->space(AS_PROGRAM); - const u32 memory_size = std::min((u32)0x3fffff, m_rom_size); - const u32 memory_end = memory_size - 1; - offs_t memory_mirror = memory_end & ~(memory_size - 1); - - space.unmap_write(0x00000000, memory_end); - space.install_rom(0x00000000, memory_end & ~memory_mirror, memory_mirror, m_rom_ptr); - - // start 60.15 Hz timer - m_6015_timer->adjust(attotime::from_hz(60.15), 0, attotime::from_hz(60.15)); -} - -void macquadra_state::init_macqd700() -{ -} - -void macquadra_state::nubus_slot_interrupt(uint8_t slot, uint32_t state) -{ - static const uint8_t masks[8] = { 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 }; - uint8_t mask = 0xff; - - slot -= 9; - - if (state) - { - m_nubus_irq_state &= ~masks[slot]; - } - else - { - m_nubus_irq_state |= masks[slot]; - } - - if ((m_nubus_irq_state & mask) != mask) - { - // HACK: sometimes we miss an ack (possible misbehavior in the VIA?) - if (m_via2_ca1_hack == 0) - { - m_via2->write_ca1(1); - } - m_via2_ca1_hack = 0; - m_via2->write_ca1(0); - } - else - { - m_via2_ca1_hack = 1; - m_via2->write_ca1(1); - } -} - -WRITE_LINE_MEMBER(macquadra_state::nubus_irq_9_w) { nubus_slot_interrupt(9, state); } -WRITE_LINE_MEMBER(macquadra_state::nubus_irq_a_w) { nubus_slot_interrupt(0xa, state); } -WRITE_LINE_MEMBER(macquadra_state::nubus_irq_b_w) { nubus_slot_interrupt(0xb, state); } -WRITE_LINE_MEMBER(macquadra_state::nubus_irq_c_w) { nubus_slot_interrupt(0xc, state); } -WRITE_LINE_MEMBER(macquadra_state::nubus_irq_d_w) { nubus_slot_interrupt(0xd, state); } -WRITE_LINE_MEMBER(macquadra_state::nubus_irq_e_w) { nubus_slot_interrupt(0xe, state); } - -// DAFB: video for Quadra 700/900 - -void macquadra_state::dafb_recalc_ints() -{ - if (m_dafb_int_status != 0) - { - nubus_slot_interrupt(0xf, ASSERT_LINE); - } - else - { - nubus_slot_interrupt(0xf, CLEAR_LINE); - } -} - -TIMER_CALLBACK_MEMBER(macquadra_state::dafb_vbl_tick) -{ - m_dafb_int_status |= 1; - dafb_recalc_ints(); - - m_vbl_timer->adjust(m_screen->time_until_pos(480, 0), 0); -} - -TIMER_CALLBACK_MEMBER(macquadra_state::dafb_cursor_tick) -{ - m_dafb_int_status |= 4; - dafb_recalc_ints(); - - m_cursor_timer->adjust(m_screen->time_until_pos(m_cursor_line, 0), 0); -} - -void macquadra_state::video_start() // DAFB -{ - m_vbl_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(macquadra_state::dafb_vbl_tick),this)); - m_cursor_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(macquadra_state::dafb_cursor_tick),this)); - - m_vbl_timer->adjust(attotime::never); - m_cursor_timer->adjust(attotime::never); -} - -void macquadra_state::video_reset() // DAFB -{ - m_dafb_count = 0; - m_dafb_clutoffs = 0; - m_dafb_montype = 6; - m_dafb_vbltime = 0; - m_dafb_int_status = 0; - m_dafb_mode = 0; - m_dafb_base = 0x1000; - m_dafb_stride = 256*4; - - memset(m_dafb_palette, 0, sizeof(m_dafb_palette)); -} - -uint32_t macquadra_state::dafb_r(offs_t offset, uint32_t mem_mask) -{ -// if (offset != 0x108/4) printf("DAFB: Read @ %x (mask %x PC=%x)\n", offset*4, mem_mask, m_maincpu->pc()); - - switch (offset<<2) - { - case 0x1c: // inverse of monitor sense - return 7; // 21" color 2-page - - case 0x24: // SCSI 539x #1 status - return m_dafb_scsi1_drq<<9; - - case 0x28: // SCSI 539x #2 status - return m_dafb_scsi2_drq<<9; - - case 0x108: // IRQ/VBL status - return m_dafb_int_status; - - case 0x10c: // clear cursor scanline int - m_dafb_int_status &= ~4; - dafb_recalc_ints(); - break; - - case 0x114: // clear VBL int - m_dafb_int_status &= ~1; - dafb_recalc_ints(); - break; - } - return 0; -} - -void macquadra_state::dafb_w(offs_t offset, uint32_t data, uint32_t mem_mask) -{ -// if (offset != 0x10c/4) printf("DAFB: Write %08x @ %x (mask %x PC=%x)\n", data, offset*4, mem_mask, m_maincpu->pc()); - - switch (offset<<2) - { - case 0: // bits 20-9 of base - m_dafb_base &= 0x1ff; - m_dafb_base |= (data & 0xffff) << 9; -// printf("DAFB baseH: %x\n", m_dafb_base); - break; - - case 4: // bits 8-5 of base - m_dafb_base &= ~0x1ff; - m_dafb_base |= (data & 0xf) << 5; -// printf("DAFB baseL: %x\n", m_dafb_base); - break; - - case 8: - m_dafb_stride = data<<2; // stride in DWORDs -// printf("DAFB stride: %x %x\n", m_dafb_stride, data); - break; - - case 0x104: - if (data & 1) // VBL enable - { - m_vbl_timer->adjust(m_screen->time_until_pos(480, 0), 0); - } - else - { - m_vbl_timer->adjust(attotime::never); - m_dafb_int_status &= ~1; - dafb_recalc_ints(); - } - - if (data & 2) // aux scanline interrupt enable - { - fatalerror("DAFB: Aux scanline interrupt enable not supported!\n"); - } - - if (data & 4) // cursor scanline interrupt enable - { - m_cursor_timer->adjust(m_screen->time_until_pos(m_cursor_line, 0), 0); - } - else - { - m_cursor_timer->adjust(attotime::never); - m_dafb_int_status &= ~4; - dafb_recalc_ints(); - } - break; - - case 0x10c: // clear cursor scanline int - m_dafb_int_status &= ~4; - dafb_recalc_ints(); - break; - - case 0x114: // clear VBL int - m_dafb_int_status &= ~1; - dafb_recalc_ints(); - break; - } -} - -uint32_t macquadra_state::dafb_dac_r(offs_t offset, uint32_t mem_mask) -{ -// printf("DAFB: Read DAC @ %x (mask %x PC=%x)\n", offset*4, mem_mask, m_maincpu->pc()); - return 0; -} - -void macquadra_state::dafb_dac_w(offs_t offset, uint32_t data, uint32_t mem_mask) -{ -// if ((offset > 0) && (offset != 0x10/4)) printf("DAFB: Write %08x to DAC @ %x (mask %x PC=%x)\n", data, offset*4, mem_mask, m_maincpu->pc()); - - switch (offset<<2) - { - case 0: - m_dafb_clutoffs = data & 0xff; - m_dafb_count = 0; - break; - - case 0x10: - m_dafb_colors[m_dafb_count++] = data&0xff; - - if (m_dafb_count == 3) - { - m_palette->set_pen_color(m_dafb_clutoffs, rgb_t(m_dafb_colors[0], m_dafb_colors[1], m_dafb_colors[2])); - m_dafb_palette[m_dafb_clutoffs] = rgb_t(m_dafb_colors[0], m_dafb_colors[1], m_dafb_colors[2]); - m_dafb_clutoffs++; - m_dafb_count = 0; - } - break; - - case 0x20: - switch (data & 0x9f) - { - case 0x80: - m_dafb_mode = 0; // 1bpp - break; - - case 0x88: - m_dafb_mode = 1; // 2bpp - break; - - case 0x90: - m_dafb_mode = 2; // 4bpp - break; - - case 0x98: - m_dafb_mode = 3; // 8bpp - break; - - case 0x9c: - m_dafb_mode = 4; // 24bpp - break; - } - break; - } -} - -uint32_t macquadra_state::screen_update_dafb(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - switch (m_dafb_mode) - { - case 0: // 1bpp - { - uint8_t const *vram8 = (uint8_t *)m_vram.target(); - vram8 += m_dafb_base; - - for (int y = 0; y < 870; y++) - { - uint32_t *scanline = &bitmap.pix(y); - for (int x = 0; x < 1152; x+=8) - { - uint8_t const pixels = vram8[(y * m_dafb_stride) + ((x/8)^3)]; - - *scanline++ = m_dafb_palette[(pixels>>7)&1]; - *scanline++ = m_dafb_palette[(pixels>>6)&1]; - *scanline++ = m_dafb_palette[(pixels>>5)&1]; - *scanline++ = m_dafb_palette[(pixels>>4)&1]; - *scanline++ = m_dafb_palette[(pixels>>3)&1]; - *scanline++ = m_dafb_palette[(pixels>>2)&1]; - *scanline++ = m_dafb_palette[(pixels>>1)&1]; - *scanline++ = m_dafb_palette[(pixels&1)]; - } - } - } - break; - - case 1: // 2bpp - { - uint8_t const *vram8 = (uint8_t *)m_vram.target(); - vram8 += m_dafb_base; - - for (int y = 0; y < 870; y++) - { - uint32_t *scanline = &bitmap.pix(y); - for (int x = 0; x < 1152/4; x++) - { - uint8_t const pixels = vram8[(y * m_dafb_stride) + (BYTE4_XOR_BE(x))]; - - *scanline++ = m_dafb_palette[((pixels>>6)&3)]; - *scanline++ = m_dafb_palette[((pixels>>4)&3)]; - *scanline++ = m_dafb_palette[((pixels>>2)&3)]; - *scanline++ = m_dafb_palette[(pixels&3)]; - } - } - } - break; - - case 2: // 4bpp - { - uint8_t const *vram8 = (uint8_t *)m_vram.target(); - vram8 += m_dafb_base; - - for (int y = 0; y < 870; y++) - { - uint32_t *scanline = &bitmap.pix(y); - for (int x = 0; x < 1152/2; x++) - { - uint8_t const pixels = vram8[(y * m_dafb_stride) + (BYTE4_XOR_BE(x))]; - - *scanline++ = m_dafb_palette[(pixels>>4)]; - *scanline++ = m_dafb_palette[(pixels&0xf)]; - } - } - } - break; - - case 3: // 8bpp - { - uint8_t const *vram8 = (uint8_t *)m_vram.target(); - vram8 += m_dafb_base; - - for (int y = 0; y < 870; y++) - { - uint32_t *scanline = &bitmap.pix(y); - for (int x = 0; x < 1152; x++) - { - uint8_t const pixels = vram8[(y * m_dafb_stride) + (BYTE4_XOR_BE(x))]; - *scanline++ = m_dafb_palette[pixels]; - } - } - } - break; - - case 4: // 24 bpp - for (int y = 0; y < 480; y++) - { - uint32_t *scanline = &bitmap.pix(y); - uint32_t const *base = (uint32_t *)&m_vram[(y * (m_dafb_stride/4)) + (m_dafb_base/4)]; - for (int x = 0; x < 640; x++) - { - *scanline++ = *base++; - } - } - break; - } - - return 0; -} - -WRITE_LINE_MEMBER(macquadra_state::drq_539x_1_w) -{ -} - -WRITE_LINE_MEMBER(macquadra_state::drq_539x_2_w) -{ -} - -WRITE_LINE_MEMBER(macquadra_state::irq_539x_1_w) -{ - if (state) // make sure a CB1 transition occurs - { - m_via2->write_cb2(0); - m_via2->write_cb2(1); - } -} - -WRITE_LINE_MEMBER(macquadra_state::irq_539x_2_w) -{ -} - -uint16_t macquadra_state::mac_via_r(offs_t offset) -{ - uint16_t data; - - offset >>= 8; - offset &= 0x0f; - - if (!machine().side_effects_disabled()) - mac_via_sync(); - - data = m_via1->read(offset); - - return (data & 0xff) | (data << 8); -} - -void macquadra_state::mac_via_w(offs_t offset, uint16_t data, uint16_t mem_mask) -{ - offset >>= 8; - offset &= 0x0f; - - mac_via_sync(); - - if (ACCESSING_BITS_0_7) - m_via1->write(offset, data & 0xff); - if (ACCESSING_BITS_8_15) - m_via1->write(offset, (data >> 8) & 0xff); -} - -WRITE_LINE_MEMBER(macquadra_state::mac_via_irq) -{ - m_via_interrupt = state; - field_interrupts(); -} - -WRITE_LINE_MEMBER(macquadra_state::mac_via2_irq) -{ - m_via2_interrupt = state; - field_interrupts(); -} - -uint16_t macquadra_state::mac_via2_r(offs_t offset) -{ - int data; - - offset >>= 8; - offset &= 0x0f; - - if (!machine().side_effects_disabled()) - mac_via_sync(); - - data = m_via2->read(offset); - return (data & 0xff) | (data << 8); -} - -void macquadra_state::mac_via2_w(offs_t offset, uint16_t data, uint16_t mem_mask) -{ - offset >>= 8; - offset &= 0x0f; - - mac_via_sync(); - - if (ACCESSING_BITS_0_7) - m_via2->write(offset, data & 0xff); - if (ACCESSING_BITS_8_15) - m_via2->write(offset, (data >> 8) & 0xff); -} - -void macquadra_state::mac_via_sync() -{ - // The via runs at 783.36KHz while the main cpu runs at 15MHz or - // more, so we need to sync the access with the via clock. Plus - // the whole access takes half a (via) cycle and ends when synced - // with the main cpu again. - - // Get the main cpu time - u64 cycle = m_maincpu->total_cycles(); - - // Get the number of the cycle the via is in at that time - u64 via_cycle = cycle * m_via1->clock() / m_maincpu->clock(); - - // The access is going to start at via_cycle+1 and end at - // via_cycle+1.5, compute what that means in maincpu cycles (the - // +1 rounds up, since the clocks are too different to ever be - // synced). - u64 main_cycle = (via_cycle * 2 + 3) * m_maincpu->clock() / (2 * m_via1->clock()) + 1; - - // Finally adjust the main cpu icount as needed. - m_maincpu->adjust_icount(-int(main_cycle - cycle)); -} - -uint32_t macquadra_state::rom_switch_r(offs_t offset) -{ - // disable the overlay - if (m_overlay) - { - address_space& space = m_maincpu->space(AS_PROGRAM); - const u32 memory_end = m_ram->size() - 1; - void *memory_data = m_ram->pointer(); - offs_t memory_mirror = memory_end & ~memory_end; - - space.install_ram(0x00000000, memory_end & ~memory_mirror, memory_mirror, memory_data); - m_overlay = false; - } - - //printf("rom_switch_r: offset %08x ROM_size -1 = %08x, masked = %08x\n", offset, m_rom_size-1, offset & ((m_rom_size - 1)>>2)); - - return m_rom_ptr[offset & ((m_rom_size - 1)>>2)]; -} - -TIMER_CALLBACK_MEMBER(macquadra_state::mac_6015_tick) -{ - /* handle ADB keyboard/mouse */ - m_macadb->adb_vblank(); - - if (++m_irq_count == 60) - { - m_irq_count = 0; - - m_ca2_data ^= 1; - /* signal 1 Hz irq on CA2 input on the VIA */ - m_via1->write_ca2(m_ca2_data); - } -} - -uint8_t macquadra_state::mac_5396_r(offs_t offset) -{ - if (offset < 0x100) - { - return m_ncr1->read(offset>>4); - } - else // pseudo-DMA: read from the FIFO - { -// return m_539x_1->read(2); - } - - // never executed - return 0; -} - -void macquadra_state::mac_5396_w(offs_t offset, uint8_t data) -{ - if (offset < 0x100) - { - m_ncr1->write(offset>>4, data); - } - else // pseudo-DMA: write to the FIFO - { -// m_539x_1->write(2, data); - } -} - -/*************************************************************************** - ADDRESS MAPS -***************************************************************************/ -void macquadra_state::quadra700_map(address_map &map) -{ - map(0x40000000, 0x400fffff).r(FUNC(macquadra_state::rom_switch_r)).mirror(0x0ff00000); - - map(0x50000000, 0x50001fff).rw(FUNC(macquadra_state::mac_via_r), FUNC(macquadra_state::mac_via_w)).mirror(0x00fc0000); - map(0x50002000, 0x50003fff).rw(FUNC(macquadra_state::mac_via2_r), FUNC(macquadra_state::mac_via2_w)).mirror(0x00fc0000); -// 50008000 = Ethernet MAC ID PROM -// 5000a000 = Sonic (DP83932) ethernet -// 5000f000 = SCSI cf96, 5000f402 = SCSI #2 cf96 - map(0x5000f000, 0x5000f3ff).rw(FUNC(macquadra_state::mac_5396_r), FUNC(macquadra_state::mac_5396_w)).mirror(0x00fc0000); - map(0x5000c000, 0x5000dfff).rw(FUNC(macquadra_state::mac_scc_r), FUNC(macquadra_state::mac_scc_2_w)).mirror(0x00fc0000); - map(0x50014000, 0x50015fff).rw(m_easc, FUNC(asc_device::read), FUNC(asc_device::write)).mirror(0x00fc0000); - map(0x5001e000, 0x5001ffff).rw(FUNC(macquadra_state::swim_r), FUNC(macquadra_state::swim_w)).mirror(0x00fc0000); - - // f9800000 = VDAC / DAFB - map(0xf9000000, 0xf91fffff).ram().share("vram"); - map(0xf9800000, 0xf98001ff).rw(FUNC(macquadra_state::dafb_r), FUNC(macquadra_state::dafb_w)); - map(0xf9800200, 0xf980023f).rw(FUNC(macquadra_state::dafb_dac_r), FUNC(macquadra_state::dafb_dac_w)); -} - -uint8_t macquadra_state::mac_via_in_a() -{ - return 0xc1; -} - -uint8_t macquadra_state::mac_via_in_b() -{ - int val = m_macadb->get_adb_state()<<4; - val |= m_rtc->data_r(); - - if (!m_adb_irq_pending) - { - val |= 0x08; - } - -// printf("%s VIA1 IN_B = %02x\n", machine().describe_context().c_str(), val); - - return val; -} - -void macquadra_state::mac_via_out_a(uint8_t data) -{ - int hdsel = BIT(data, 5); - if (hdsel != m_hdsel) - { - if (m_cur_floppy) - { - m_cur_floppy->ss_w(hdsel); - } - } - m_hdsel = hdsel; -} - -void macquadra_state::mac_via_out_b(uint8_t data) -{ -// printf("%s VIA1 OUT B: %02x\n", machine().describe_context().c_str(), data); - m_macadb->mac_adb_newaction((data & 0x30) >> 4); - - m_rtc->ce_w((data & 0x04)>>2); - m_rtc->data_w(data & 0x01); - m_rtc->clk_w((data >> 1) & 0x01); -} - -uint8_t macquadra_state::mac_via2_in_a() -{ - return 0x80 | m_nubus_irq_state; -} - -uint8_t macquadra_state::mac_via2_in_b() -{ - return 0xcf; // indicate no NuBus transaction error -} - -void macquadra_state::mac_via2_out_a(uint8_t data) -{ -} - -void macquadra_state::mac_via2_out_b(uint8_t data) -{ - // chain 60.15 Hz to VIA1 - m_via1->write_ca1(data>>7); -} - -void macquadra_state::phases_w(uint8_t phases) -{ - if (m_cur_floppy) - m_cur_floppy->seek_phase_w(phases); -} - -void macquadra_state::devsel_w(uint8_t devsel) -{ - if (devsel == 1) - m_cur_floppy = m_floppy[0]->get_device(); - else if (devsel == 2) - m_cur_floppy = m_floppy[1]->get_device(); - else - m_cur_floppy = nullptr; - - m_swim->set_floppy(m_cur_floppy); - if (m_cur_floppy) - m_cur_floppy->ss_w(m_hdsel); -} - -/*************************************************************************** - DEVICE CONFIG -***************************************************************************/ - -static INPUT_PORTS_START( macadb ) -INPUT_PORTS_END - -/*************************************************************************** - MACHINE DRIVERS -***************************************************************************/ - -static void mac_nubus_cards(device_slot_interface &device) -{ - device.option_add("m2video", NUBUS_M2VIDEO); /* Apple Macintosh II Video Card */ - device.option_add("48gc", NUBUS_48GC); /* Apple 4*8 Graphics Card */ - device.option_add("824gc", NUBUS_824GC); /* Apple 8*24 Graphics Card */ - device.option_add("cb264", NUBUS_CB264); /* RasterOps ColorBoard 264 */ - device.option_add("vikbw", NUBUS_VIKBW); /* Moniterm Viking board */ - device.option_add("image", NUBUS_IMAGE); /* Disk Image Pseudo-Card */ - device.option_add("specpdq", NUBUS_SPECPDQ); /* SuperMac Spectrum PDQ */ - device.option_add("m2hires", NUBUS_M2HIRES); /* Apple Macintosh II Hi-Resolution Card */ - device.option_add("spec8s3", NUBUS_SPEC8S3); /* SuperMac Spectrum/8 Series III */ -// device.option_add("thundergx", NUBUS_THUNDERGX); /* Radius Thunder GX (not yet) */ - device.option_add("radiustpd", NUBUS_RADIUSTPD); /* Radius Two Page Display */ - device.option_add("asmc3nb", NUBUS_ASNTMC3NB); /* Asante MC3NB Ethernet card */ - device.option_add("portrait", NUBUS_WSPORTRAIT); /* Apple Macintosh II Portrait video card */ - device.option_add("enetnb", NUBUS_APPLEENET); /* Apple NuBus Ethernet */ - device.option_add("bootbug", NUBUS_BOOTBUG); /* Brigent BootBug debugger card */ - device.option_add("quadralink", NUBUS_QUADRALINK); /* AE Quadralink serial card */ - device.option_add("laserview", NUBUS_LASERVIEW); /* Sigma Designs LaserView monochrome video card */ -} - -static void mac_scsi_devices(device_slot_interface &device) -{ - device.option_add("harddisk", NSCSI_HARDDISK); - device.option_add("cdrom", NSCSI_CDROM); -} - -void macquadra_state::macqd700(machine_config &config) -{ - /* basic machine hardware */ - M68040(config, m_maincpu, 25000000); - m_maincpu->set_addrmap(AS_PROGRAM, &macquadra_state::quadra700_map); - - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_refresh_hz(75.08); - m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(1260)); - m_screen->set_size(1152, 870); - m_screen->set_visarea(0, 1152-1, 0, 870-1); - m_screen->set_screen_update(FUNC(macquadra_state::screen_update_dafb)); - - PALETTE(config, m_palette).set_entries(256); - - RTC3430042(config, m_rtc, XTAL(32'768)); - - SWIM1(config, m_swim, C15M); - m_swim->phases_cb().set(FUNC(macquadra_state::phases_w)); - m_swim->devsel_cb().set(FUNC(macquadra_state::devsel_w)); - - applefdintf_device::add_35_hd(config, m_floppy[0]); - applefdintf_device::add_35_nc(config, m_floppy[1]); - - SCC85C30(config, m_scc, C7M); -// m_scc->intrq_callback().set(FUNC(macquadra_state::set_scc_interrupt)); - - // SCSI bus and devices - NSCSI_BUS(config, m_scsibus1); - NSCSI_CONNECTOR(config, "scsi1:0", mac_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi1:1", mac_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi1:2", mac_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi1:3", mac_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi1:4", mac_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi1:5", mac_scsi_devices, nullptr); - NSCSI_CONNECTOR(config, "scsi1:6", mac_scsi_devices, "harddisk"); - NSCSI_CONNECTOR(config, "scsi1:7").option_set("ncr5394", NCR53CF94).clock(24_MHz_XTAL).machine_config( - [this] (device_t *device) - { - ncr53cf94_device &adapter = downcast<ncr53cf94_device &>(*device); - - adapter.set_busmd(ncr53cf94_device::BUSMD_0); - adapter.irq_handler_cb().set(*this, FUNC(macquadra_state::irq_539x_1_w)); - adapter.drq_handler_cb().set(*this, FUNC(macquadra_state::drq_539x_1_w)); - }); - - DP83932C(config, m_sonic, 20_MHz_XTAL); - m_sonic->set_bus(m_maincpu, 0); - - nubus_device &nubus(NUBUS(config, "nubus", 0)); - nubus.set_space(m_maincpu, AS_PROGRAM); - nubus.out_irq9_callback().set(FUNC(macquadra_state::nubus_irq_9_w)); - nubus.out_irqa_callback().set(FUNC(macquadra_state::nubus_irq_a_w)); - nubus.out_irqb_callback().set(FUNC(macquadra_state::nubus_irq_b_w)); - nubus.out_irqc_callback().set(FUNC(macquadra_state::nubus_irq_c_w)); - nubus.out_irqd_callback().set(FUNC(macquadra_state::nubus_irq_d_w)); - nubus.out_irqe_callback().set(FUNC(macquadra_state::nubus_irq_e_w)); - NUBUS_SLOT(config, "nbd", "nubus", mac_nubus_cards, nullptr); - NUBUS_SLOT(config, "nbe", "nubus", mac_nubus_cards, nullptr); - - R65NC22(config, m_via1, C7M/10); - m_via1->readpa_handler().set(FUNC(macquadra_state::mac_via_in_a)); - m_via1->readpb_handler().set(FUNC(macquadra_state::mac_via_in_b)); - m_via1->writepa_handler().set(FUNC(macquadra_state::mac_via_out_a)); - m_via1->writepb_handler().set(FUNC(macquadra_state::mac_via_out_b)); - m_via1->irq_handler().set(FUNC(macquadra_state::mac_via_irq)); - m_via1->cb2_handler().set(FUNC(macquadra_state::via_cb2_w)); - - R65NC22(config, m_via2, C7M/10); - m_via2->readpa_handler().set(FUNC(macquadra_state::mac_via2_in_a)); - m_via2->readpb_handler().set(FUNC(macquadra_state::mac_via2_in_b)); - m_via2->writepa_handler().set(FUNC(macquadra_state::mac_via2_out_a)); - m_via2->writepb_handler().set(FUNC(macquadra_state::mac_via2_out_b)); - m_via2->irq_handler().set(FUNC(macquadra_state::mac_via2_irq)); - - MACADB(config, m_macadb, C15M); - m_macadb->via_clock_callback().set(m_via1, FUNC(via6522_device::write_cb1)); - m_macadb->via_data_callback().set(m_via1, FUNC(via6522_device::write_cb2)); - m_macadb->adb_irq_callback().set(FUNC(macquadra_state::adb_irq_w)); - - SPEAKER(config, "lspeaker").front_left(); - SPEAKER(config, "rspeaker").front_right(); - ASC(config, m_easc, C15M, asc_device::asc_type::EASC); -// m_easc->irqf_callback().set(FUNC(macquadra_state::mac_asc_irq)); - m_easc->add_route(0, "lspeaker", 1.0); - m_easc->add_route(1, "rspeaker", 1.0); - - /* internal ram */ - RAM(config, m_ram); - m_ram->set_default_size("4M"); - m_ram->set_extra_options("8M,16M,32M,64M,68M,72M,80M,96M,128M"); - - SOFTWARE_LIST(config, "flop35_list").set_original("mac_flop"); -} - -ROM_START( macqd700 ) - ROM_REGION32_BE(0x100000, "bootrom", 0) - ROM_LOAD( "420dbff3.rom", 0x000000, 0x100000, CRC(88ea2081) SHA1(7a8ee468d16e64f2ad10cb8d1a45e6f07cc9e212) ) -ROM_END - -COMP( 1991, macqd700, 0, 0, macqd700, macadb, macquadra_state, init_macqd700, "Apple Computer", "Macintosh Quadra 700", MACHINE_NOT_WORKING ) |