diff options
Diffstat (limited to 'src/mame/drivers/decstation.cpp')
-rw-r--r-- | src/mame/drivers/decstation.cpp | 186 |
1 files changed, 45 insertions, 141 deletions
diff --git a/src/mame/drivers/decstation.cpp b/src/mame/drivers/decstation.cpp index c75668f2e13..4d7d412e1a9 100644 --- a/src/mame/drivers/decstation.cpp +++ b/src/mame/drivers/decstation.cpp @@ -73,6 +73,7 @@ #include "bus/rs232/rs232.h" #include "screen.h" #include "video/bt459.h" +#include "video/decsfb.h" class decstation_state : public driver_device { @@ -82,6 +83,7 @@ public: m_maincpu(*this, "maincpu"), m_screen(*this, "screen"), m_scantimer(*this, "scantimer"), + m_sfb(*this, "sfb"), m_lk201(*this, "lk201"), m_ioga(*this, "ioga"), m_rtc(*this, "rtc"), @@ -103,6 +105,7 @@ public: protected: DECLARE_READ_LINE_MEMBER(brcond0_r) { return ASSERT_LINE; } DECLARE_WRITE_LINE_MEMBER(ioga_irq_w); + DECLARE_WRITE_LINE_MEMBER(dz_irq_w); DECLARE_READ32_MEMBER(cfb_r); DECLARE_WRITE32_MEMBER(cfb_w); @@ -130,9 +133,10 @@ private: uint32_t kn01_screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - required_device<mips1core_device_base> m_maincpu; + required_device<mips1_device_base> m_maincpu; required_device<screen_device> m_screen; optional_device<timer_device> m_scantimer; + optional_device<decsfb_device> m_sfb; optional_device<lk201_device> m_lk201; optional_device<dec_ioga_device> m_ioga; required_device<mc146818_device> m_rtc; @@ -148,9 +152,6 @@ private: void threemin_map(address_map &map); u8 *m_vrom_ptr; - u32 m_vram[0x200000/4]; - u32 m_sfb[0x80]; - int m_copy_src; u32 m_kn01_control, m_kn01_status; u32 m_palette[256], m_overlay[256]; @@ -190,69 +191,27 @@ uint32_t decstation_state::kn01_screen_update(screen_device &screen, bitmap_rgb3 uint32_t decstation_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { - m_bt459->screen_update(screen, bitmap, cliprect, (uint8_t *)&m_vram[0]); + m_bt459->screen_update(screen, bitmap, cliprect, (uint8_t *)m_sfb->get_vram()); return 0; } -/* - 0x100000 copy register 0 - 0x100004 copy register 1 - 0x100008 copy register 2 - 0x10000C copy register 3 - 0x100010 copy register 4 - 0x100014 copy register 5 - 0x100018 copy register 6 - 0x10001C copy register 7 - 0x100020 foreground register - 0x100024 background register - 0x100028 plane mask - 0x10002C pixel mask - 0x100030 cxt mode - 0x100034 boolean operation - 0x100038 pixel shift - 0x10003C line address - 0x100040 bresh 1 - 0x100044 bresh 2 - 0x100048 bresh 3 - 0x10004C bresh continue - 0x100050 deep register - 0x100054 start register - 0x100058 Clear Interrupt - 0x10005C reserved 2 - 0x100060 refresh count - 0x100064 video horiz - 0x100068 video vertical - 0x10006C refresh base - 0x100070 video valid - 0x100074 Interrupt Enable -*/ - -#define MODE_SIMPLE 0 -#define MODE_OPAQUESTIPPLE 1 -#define MODE_OPAQUELINE 2 -#define MODE_TRANSPARENTSTIPPLE 5 -#define MODE_TRANSPARENTLINE 6 -#define MODE_COPY 7 - READ32_MEMBER(decstation_state::cfb_r) { uint32_t addr = offset << 2; -// logerror("cfb_r: reading at %x\n", addr); + //logerror("cfb_r: reading at %x\n", addr); - if (addr < 0x800000) + if (addr < 0x80000) { return m_vrom_ptr[addr>>2] & 0xff; } if ((addr >= 0x100000) && (addr < 0x100200)) { - return m_sfb[offset-(0x100000/4)]; } if ((addr >= 0x200000) && (addr < 0x400000)) { - return m_vram[offset-(0x200000/4)]; } return 0xffffffff; @@ -264,13 +223,6 @@ WRITE32_MEMBER(decstation_state::cfb_w) if ((addr >= 0x100000) && (addr < 0x100200)) { - //printf("SFB: %08x (mask %08x) @ %x\n", data, mem_mask, offset<<2); - COMBINE_DATA(&m_sfb[offset-(0x100000/4)]); - - if ((addr == 0x100030) && (data = 7)) - { - m_copy_src = 1; - } return; } @@ -282,70 +234,6 @@ WRITE32_MEMBER(decstation_state::cfb_w) if ((addr >= 0x200000) && (addr < 0x400000)) { - //printf("FB: %08x (mask %08x) @ %x\n", data, mem_mask, offset<<2); - - switch (m_sfb[0x30/4]) - { - case MODE_SIMPLE: // simple - COMBINE_DATA(&m_vram[offset-(0x200000/4)]); - break; - - case MODE_TRANSPARENTSTIPPLE: - { - uint8_t *pVRAM = (uint8_t *)&m_vram[offset-(0x200000/4)]; - uint8_t fgs[4]; - - fgs[0] = m_sfb[0x20/4] >> 24; - fgs[1] = (m_sfb[0x20/4] >> 16) & 0xff; - fgs[2] = (m_sfb[0x20/4] >> 8) & 0xff; - fgs[3] = m_sfb[0x20/4] & 0xff; - for (int x = 0; x < 32; x++) - { - if (data & (1<<(31-x))) - { - pVRAM[x] = fgs[x & 3]; - } - } - } - break; - - case MODE_COPY: - { - uint8_t *pVRAM = (uint8_t *)&m_vram[offset-(0x200000/4)]; - uint8_t *pBuffer = (uint8_t *)&m_sfb[0]; // first 8 32-bit regs are the copy buffer - - if (m_copy_src) - { - m_copy_src = 0; - - for (int x = 0; x < 32; x++) - { - if (data & (1<<(31-x))) - { - pBuffer[x] = pVRAM[x]; - } - } - } - else - { - m_copy_src = 1; - - for (int x = 0; x < 32; x++) - { - if (data & (1<<(31-x))) - { - pVRAM[x] = pBuffer[x]; - } - } - } - } - break; - - default: - logerror("SFB: Unsupported VRAM write %08x (mask %08x) at %08x in mode %x\n", data, mem_mask, offset<<2, m_sfb[0x30/4]); - break; - } - return; } } @@ -551,18 +439,24 @@ WRITE_LINE_MEMBER(decstation_state::ioga_irq_w) m_maincpu->set_input_line(INPUT_LINE_IRQ3, state); } +WRITE_LINE_MEMBER(decstation_state::dz_irq_w) +{ + m_maincpu->set_input_line(INPUT_LINE_IRQ2, state); +} + void decstation_state::machine_start() { if (m_vrom) m_vrom_ptr = m_vrom->base(); - save_item(NAME(m_vram)); - save_item(NAME(m_sfb)); - save_item(NAME(m_copy_src)); } void decstation_state::machine_reset() { - m_copy_src = 1; + if (m_ioga) + { + m_ioga->set_dma_space(&m_maincpu->space(AS_PROGRAM)); + } + m_entry = 0; m_stage = 0; m_r = m_g = m_b = 0; @@ -612,8 +506,10 @@ void decstation_state::kn01_map(address_map &map) void decstation_state::threemin_map(address_map &map) { map(0x00000000, 0x07ffffff).ram(); // full 128 MB - map(0x10000000, 0x13ffffff).rw(FUNC(decstation_state::cfb_r), FUNC(decstation_state::cfb_w)); + map(0x10000000, 0x1007ffff).rw(FUNC(decstation_state::cfb_r), FUNC(decstation_state::cfb_w)); + map(0x10100000, 0x101001ff).rw(m_sfb, FUNC(decsfb_device::read), FUNC(decsfb_device::write)); map(0x101c0000, 0x101c000f).m("bt459", FUNC(bt459_device::map)).umask32(0x000000ff); + map(0x10200000, 0x103fffff).rw(m_sfb, FUNC(decsfb_device::vram_r), FUNC(decsfb_device::vram_w)); map(0x1c000000, 0x1c07ffff).m(m_ioga, FUNC(dec_ioga_device::map)); map(0x1c0c0000, 0x1c0c0007).rw(m_lance, FUNC(am79c90_device::regs_r), FUNC(am79c90_device::regs_w)).umask32(0x0000ffff); map(0x1c100000, 0x1c100003).rw(m_scc0, FUNC(z80scc_device::ca_r), FUNC(z80scc_device::ca_w)).umask32(0x0000ff00); @@ -647,10 +543,11 @@ static void dec_scsi_devices(device_slot_interface &device) device.option_add_internal("asc", NCR53C94); } -MACHINE_CONFIG_START(decstation_state::kn01) +void decstation_state::kn01(machine_config &config) +{ R2000(config, m_maincpu, 16.67_MHz_XTAL, 65536, 131072); m_maincpu->set_endianness(ENDIANNESS_LITTLE); - m_maincpu->set_fpurev(0x340); + m_maincpu->set_fpu(mips1_device_base::MIPS_R3010Av4); m_maincpu->in_brcond<0>().set(FUNC(decstation_state::brcond0_r)); m_maincpu->set_addrmap(AS_PROGRAM, &decstation_state::kn01_map); @@ -662,17 +559,20 @@ MACHINE_CONFIG_START(decstation_state::kn01) m_scantimer->configure_scanline(FUNC(decstation_state::scanline_timer), "screen", 0, 1); DC7085(config, m_dz, 0); + m_dz->int_cb().set(FUNC(decstation_state::dz_irq_w)); + m_dz->ch1_tx_cb().set("dc7085:ch1", FUNC(dc7085_channel::rx_w)); AM79C90(config, m_lance, XTAL(12'500'000)); MC146818(config, m_rtc, XTAL(32'768)); m_rtc->set_binary(true); -MACHINE_CONFIG_END +} -MACHINE_CONFIG_START(decstation_state::kn02ba) +void decstation_state::kn02ba(machine_config &config) +{ R3000A(config, m_maincpu, 33.333_MHz_XTAL, 65536, 131072); m_maincpu->set_endianness(ENDIANNESS_LITTLE); - m_maincpu->set_fpurev(0x340); // should be R3010A v4.0 + m_maincpu->set_fpu(mips1_device_base::MIPS_R3010Av4); m_maincpu->in_brcond<0>().set(FUNC(decstation_state::brcond0_r)); m_maincpu->set_addrmap(AS_PROGRAM, &decstation_state::threemin_map); @@ -680,10 +580,15 @@ MACHINE_CONFIG_START(decstation_state::kn02ba) m_screen->set_raw(130000000, 1704, 32, (1280+32), 1064, 3, (1024+3)); m_screen->set_screen_update(FUNC(decstation_state::screen_update)); + DECSFB(config, m_sfb, 25'000'000); // clock based on white paper which quotes "40ns" gate array cycle times +// m_sfb->int_cb().set(FUNC(dec_ioga_device::slot0_irq_w)); + BT459(config, m_bt459, 83'020'800); AM79C90(config, m_lance, XTAL(12'500'000)); m_lance->intr_out().set("ioga", FUNC(dec_ioga_device::lance_irq_w)); + m_lance->dma_in().set("ioga", FUNC(dec_ioga_device::lance_dma_r)); + m_lance->dma_out().set("ioga", FUNC(dec_ioga_device::lance_dma_w)); DECSTATION_IOGA(config, m_ioga, XTAL(12'500'000)); m_ioga->irq_out().set(FUNC(decstation_state::ioga_irq_w)); @@ -714,17 +619,16 @@ MACHINE_CONFIG_START(decstation_state::kn02ba) rs232b.dcd_handler().set(m_scc0, FUNC(z80scc_device::dcdb_w)); rs232b.cts_handler().set(m_scc0, FUNC(z80scc_device::ctsb_w)); - MCFG_NSCSI_BUS_ADD("scsibus") - MCFG_NSCSI_ADD("scsibus:0", dec_scsi_devices, "harddisk", false) - MCFG_NSCSI_ADD("scsibus:1", dec_scsi_devices, "cdrom", false) - MCFG_NSCSI_ADD("scsibus:2", dec_scsi_devices, nullptr, false) - MCFG_NSCSI_ADD("scsibus:3", dec_scsi_devices, nullptr, false) - MCFG_NSCSI_ADD("scsibus:4", dec_scsi_devices, nullptr, false) - MCFG_NSCSI_ADD("scsibus:5", dec_scsi_devices, nullptr, false) - MCFG_NSCSI_ADD("scsibus:6", dec_scsi_devices, nullptr, false) - MCFG_NSCSI_ADD("scsibus:7", dec_scsi_devices, "asc", true) - MCFG_SLOT_OPTION_MACHINE_CONFIG("asc", [this] (device_t *device) { ncr5394(device); }) -MACHINE_CONFIG_END + NSCSI_BUS(config, "scsibus"); + NSCSI_CONNECTOR(config, "scsibus:0", dec_scsi_devices, "harddisk"); + NSCSI_CONNECTOR(config, "scsibus:1", dec_scsi_devices, "cdrom"); + NSCSI_CONNECTOR(config, "scsibus:2", dec_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsibus:3", dec_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsibus:4", dec_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsibus:5", dec_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsibus:6", dec_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsibus:7", dec_scsi_devices, "asc", true).set_option_machine_config("asc", [this] (device_t *device) { ncr5394(device); }); +} static INPUT_PORTS_START( decstation ) PORT_START("UNUSED") // unused IN0 |