diff options
Diffstat (limited to 'src/mame/drivers/cdc721.cpp')
-rw-r--r-- | src/mame/drivers/cdc721.cpp | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/src/mame/drivers/cdc721.cpp b/src/mame/drivers/cdc721.cpp deleted file mode 100644 index c6825c48a8e..00000000000 --- a/src/mame/drivers/cdc721.cpp +++ /dev/null @@ -1,422 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert,AJR -/************************************************************************************************************ - -Control Data Corporation CDC 721 Terminal (Viking) - -2013-08-13 Skeleton - - -*************************************************************************************************************/ - -#include "emu.h" -#include "bus/rs232/rs232.h" -#include "cpu/z80/z80.h" -#include "machine/bankdev.h" -#include "machine/i8255.h" -#include "machine/input_merger.h" -#include "machine/ins8250.h" -#include "machine/nvram.h" -#include "machine/output_latch.h" -#include "machine/z80ctc.h" -#include "video/tms9927.h" -#include "emupal.h" -#include "screen.h" - - -class cdc721_state : public driver_device -{ -public: - cdc721_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_bank_16k(*this, {"block0", "block4", "block8", "blockc"}) - , m_crtc(*this, "crtc") - , m_rom_chargen(*this, "chargen") - , m_ram_chargen(*this, "chargen") - , m_videoram(*this, "videoram") - , m_nvram(*this, "nvram") - { } - - void cdc721(machine_config &config); - -protected: - virtual void machine_start() override; - virtual void machine_reset() override; - -private: - uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - void cdc721_palette(palette_device &palette) const; - DECLARE_WRITE8_MEMBER(interrupt_mask_w); - DECLARE_WRITE8_MEMBER(misc_w); - DECLARE_WRITE8_MEMBER(lights_w); - DECLARE_WRITE8_MEMBER(block_select_w); - DECLARE_WRITE8_MEMBER(nvram_w); - - template<int Line> DECLARE_WRITE_LINE_MEMBER(int_w); - TIMER_CALLBACK_MEMBER(update_interrupts); - IRQ_CALLBACK_MEMBER(restart_cb); - - template<int Bit> DECLARE_WRITE_LINE_MEMBER(foreign_char_bank_w); - - void io_map(address_map &map); - void mem_map(address_map &map); - void block0_map(address_map &map); - void block4_map(address_map &map); - void block8_map(address_map &map); - void blockc_map(address_map &map); - - u8 m_flashcnt; - u8 m_foreign_char_bank; - - u8 m_pending_interrupts; - u8 m_active_interrupts; - u8 m_interrupt_mask; - - required_device<cpu_device> m_maincpu; - required_device_array<address_map_bank_device, 4> m_bank_16k; - required_device<crt5037_device> m_crtc; - required_region_ptr<u8> m_rom_chargen; - required_shared_ptr<u8> m_ram_chargen; - required_shared_ptr<u8> m_videoram; - required_shared_ptr<u8> m_nvram; -}; - -WRITE8_MEMBER(cdc721_state::interrupt_mask_w) -{ - m_interrupt_mask = data ^ 0xff; - machine().scheduler().synchronize(timer_expired_delegate(FUNC(cdc721_state::update_interrupts), this)); -} - -template <int Line> -WRITE_LINE_MEMBER(cdc721_state::int_w) -{ - if (BIT(m_pending_interrupts, Line) == state) - return; - - if (state) - m_pending_interrupts |= 0x01 << Line; - else - m_pending_interrupts &= ~(0x01 << Line); - - machine().scheduler().synchronize(timer_expired_delegate(FUNC(cdc721_state::update_interrupts), this)); -} - -TIMER_CALLBACK_MEMBER(cdc721_state::update_interrupts) -{ - m_active_interrupts = m_pending_interrupts & m_interrupt_mask; - m_maincpu->set_input_line(INPUT_LINE_IRQ0, m_active_interrupts != 0 ? ASSERT_LINE : CLEAR_LINE); -} - -IRQ_CALLBACK_MEMBER(cdc721_state::restart_cb) -{ - // IM 2 vector is produced through a SN74LS148N priority encoder plus some buffers and a latch - // The CTC vector is not even fetched - u8 vector = 0x00; - u8 active = m_active_interrupts; - while (vector < 0x0e && !BIT(active, 0)) - { - active >>= 1; - vector += 0x02; - } - return vector; -} - -WRITE8_MEMBER(cdc721_state::misc_w) -{ - // 7: Stop Refresh Operation - // 6: Enable RAM Char Gen - // 5: Enable Block Cursor - // 4: Reverse Video - // 3: 132/80 - // 2: Enable Blink - // 1: Enable Blinking Cursor - // 0: Alarm - - logerror("%s: %d-column display selected\n", machine().describe_context(), BIT(data, 3) ? 132 : 80); -} - -WRITE8_MEMBER(cdc721_state::block_select_w) -{ - logerror("%s: Bank select = %02X\n", machine().describe_context(), data); - for (int b = 0; b < 4; b++) - { - m_bank_16k[b]->set_bank(data & 3); - data >>= 2; - } -} - -WRITE8_MEMBER(cdc721_state::nvram_w) -{ - m_nvram[offset] = data & 0x0f; -} - -template<int Bit> -WRITE_LINE_MEMBER(cdc721_state::foreign_char_bank_w) -{ - if (state) - m_foreign_char_bank |= 1 << Bit; - else - m_foreign_char_bank &= ~(1 << Bit); -} - -void cdc721_state::mem_map(address_map &map) -{ - map(0x0000, 0x3fff).rw("block0", FUNC(address_map_bank_device::read8), FUNC(address_map_bank_device::write8)); - map(0x4000, 0x7fff).rw("block4", FUNC(address_map_bank_device::read8), FUNC(address_map_bank_device::write8)); - map(0x8000, 0xbfff).rw("block8", FUNC(address_map_bank_device::read8), FUNC(address_map_bank_device::write8)); - map(0xc000, 0xffff).rw("blockc", FUNC(address_map_bank_device::read8), FUNC(address_map_bank_device::write8)); -} - -void cdc721_state::block0_map(address_map &map) -{ - map(0x0000, 0x3fff).rom().region("resident", 0); - map(0x8000, 0xbfff).ram(); -} - -void cdc721_state::block4_map(address_map &map) -{ - map(0x0000, 0x00ff).mirror(0x2700).ram().share("nvram").w(FUNC(cdc721_state::nvram_w)); - map(0x0800, 0x0bff).mirror(0x2400).ram().share("chargen"); // 2x P2114AL-2 - map(0x8000, 0xbfff).rom().region("16krom", 0); - map(0xc000, 0xffff).ram(); -} - -void cdc721_state::block8_map(address_map &map) -{ - map(0x0000, 0x3fff).rom().region("rompack", 0); - map(0x4000, 0x7fff).ram(); -} - -void cdc721_state::blockc_map(address_map &map) -{ - map(0x0000, 0x1fff).ram(); - map(0x2000, 0x3fff).ram().share("videoram"); - map(0x4000, 0x40ff).mirror(0x2700).ram().share("nvram").w(FUNC(cdc721_state::nvram_w)); - map(0x4800, 0x4bff).mirror(0x2400).ram().share("chargen"); -} - -void cdc721_state::io_map(address_map &map) -{ - map.global_mask(0xff); - map(0x00, 0x03).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); - map(0x10, 0x1f).rw("crtc", FUNC(crt5037_device::read), FUNC(crt5037_device::write)); - map(0x20, 0x27).rw("kbduart", FUNC(ins8250_device::ins8250_r), FUNC(ins8250_device::ins8250_w)); - map(0x30, 0x33).rw("ppi", FUNC(i8255_device::read), FUNC(i8255_device::write)); - map(0x40, 0x47).rw("comuart", FUNC(ins8250_device::ins8250_r), FUNC(ins8250_device::ins8250_w)); - map(0x50, 0x50).w("ledlatch", FUNC(output_latch_device::bus_w)); - map(0x70, 0x70).w(FUNC(cdc721_state::block_select_w)); - map(0x80, 0x87).rw("pauart", FUNC(ins8250_device::ins8250_r), FUNC(ins8250_device::ins8250_w)); - map(0x90, 0x97).rw("pbuart", FUNC(ins8250_device::ins8250_r), FUNC(ins8250_device::ins8250_w)); -} - -static INPUT_PORTS_START( cdc721 ) -INPUT_PORTS_END - -void cdc721_state::machine_reset() -{ - for (auto &bank : m_bank_16k) - bank->set_bank(0); -} - -void cdc721_state::machine_start() -{ - m_pending_interrupts = 0; - m_active_interrupts = 0; - m_interrupt_mask = 0; - m_foreign_char_bank = 0; - - save_item(NAME(m_pending_interrupts)); - save_item(NAME(m_active_interrupts)); - save_item(NAME(m_interrupt_mask)); - save_item(NAME(m_foreign_char_bank)); -} - -/* F4 Character Displayer */ -static const gfx_layout cdc721_charlayout = -{ - 8, 16, /* 8 x 16 characters */ - 256, /* 256 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 7, 6, 5, 4, 3, 2, 1, 0 }, - /* y offsets */ - { 0*8, 0x100*8, 0x200*8, 0x300*8, 0x400*8, 0x500*8, 0x600*8, 0x700*8, - 0x800*8, 0x900*8, 0xa00*8, 0xb00*8, 0xc00*8, 0xd00*8, 0xe00*8, 0xf00*8 }, - 8 /* every char takes 16 x 1 bytes */ -}; - -static GFXDECODE_START( gfx_cdc721 ) - GFXDECODE_ENTRY( "chargen", 0x0000, cdc721_charlayout, 0, 1 ) -GFXDECODE_END - -void cdc721_state::cdc721_palette(palette_device &palette) const -{ - palette.set_pen_color(0, 0, 0, 0 ); // Black - palette.set_pen_color(1, 0, 255, 0 ); // Full - palette.set_pen_color(2, 0, 128, 0 ); // Dimmed -} - -uint32_t cdc721_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - uint8_t y,ra,chr,gfx,attr,pen; - uint16_t sy=0,x; - m_flashcnt++; - - for (y = 0; y < 30; y++) - { - uint16_t ma = m_videoram[y * 2] | m_videoram[y * 2 + 1] << 8; - - for (ra = 0; ra < 15; ra++) - { - uint16_t *p = &bitmap.pix16(sy++); - - for (x = 0; x < 160; x+=2) - { - pen = 1; - chr = m_videoram[(x + ma) & 0x1fff]; - attr = m_videoram[(x + ma + 1) & 0x1fff]; - gfx = m_rom_chargen[chr | (ra << 8) ]; - if (BIT(attr, 0)) // blank - pen = 0; - if (BIT(attr, 1) && (ra == 14)) // underline - gfx = 0xff; - if (BIT(attr, 4)) // dim - pen = 2; - if (BIT(attr, 2)) // rv - gfx ^= 0xff; - if (BIT(attr, 3) && BIT(m_flashcnt, 6)) // blink - gfx = 0; - - /* Display a scanline of a character */ - *p++ = BIT(gfx, 0) ? pen : 0; - *p++ = BIT(gfx, 1) ? pen : 0; - *p++ = BIT(gfx, 2) ? pen : 0; - *p++ = BIT(gfx, 3) ? pen : 0; - *p++ = BIT(gfx, 4) ? pen : 0; - *p++ = BIT(gfx, 5) ? pen : 0; - *p++ = BIT(gfx, 6) ? pen : 0; - *p++ = BIT(gfx, 7) ? pen : 0; - } - } - } - return 0; -} - -void cdc721_state::cdc721(machine_config &config) -{ - // basic machine hardware - Z80(config, m_maincpu, 6_MHz_XTAL); // Zilog Z8400B (Z80B) - m_maincpu->set_addrmap(AS_PROGRAM, &cdc721_state::mem_map); - m_maincpu->set_addrmap(AS_IO, &cdc721_state::io_map); - m_maincpu->set_irq_acknowledge_callback(FUNC(cdc721_state::restart_cb)); - - ADDRESS_MAP_BANK(config, "block0").set_map(&cdc721_state::block0_map).set_options(ENDIANNESS_LITTLE, 8, 32, 0x4000); - ADDRESS_MAP_BANK(config, "block4").set_map(&cdc721_state::block4_map).set_options(ENDIANNESS_LITTLE, 8, 32, 0x4000); - ADDRESS_MAP_BANK(config, "block8").set_map(&cdc721_state::block8_map).set_options(ENDIANNESS_LITTLE, 8, 32, 0x4000); - ADDRESS_MAP_BANK(config, "blockc").set_map(&cdc721_state::blockc_map).set_options(ENDIANNESS_LITTLE, 8, 32, 0x4000); - - NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // MCM51L01C45 (256x4) + battery - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_raw(12.936_MHz_XTAL, 800, 0, 640, 539, 0, 450); - screen.set_screen_update(FUNC(cdc721_state::screen_update)); - screen.set_palette("palette"); - PALETTE(config, "palette", FUNC(cdc721_state::cdc721_palette), 3); - GFXDECODE(config, "gfxdecode", "palette", gfx_cdc721); - - CRT5037(config, m_crtc, 12.936_MHz_XTAL / 8).set_char_width(8); - m_crtc->set_screen("screen"); - - z80ctc_device& ctc(Z80CTC(config, "ctc", 6_MHz_XTAL)); // Zilog Z8430B (M1 pulled up) - ctc.intr_callback().set(FUNC(cdc721_state::int_w<6>)); - ctc.zc_callback<1>().set("ctc", FUNC(z80ctc_device::trg2)); - //ctc.zc_callback<2>().set("comuart", FUNC(ins8250_device::rclk_w)); - - i8255_device &ppi(I8255A(config, "ppi")); - ppi.out_pb_callback().set(FUNC(cdc721_state::interrupt_mask_w)); - ppi.out_pc_callback().set(FUNC(cdc721_state::misc_w)); - - output_latch_device &ledlatch(OUTPUT_LATCH(config, "ledlatch")); - ledlatch.bit_handler<0>().set_output("error").invert(); - ledlatch.bit_handler<1>().set_output("alert").invert(); - ledlatch.bit_handler<2>().set_output("lock").invert(); - ledlatch.bit_handler<3>().set_output("message").invert(); - ledlatch.bit_handler<4>().set_output("prog1").invert(); - ledlatch.bit_handler<5>().set_output("prog2").invert(); - ledlatch.bit_handler<6>().set_output("prog3").invert(); - ledlatch.bit_handler<7>().set_output("dsr").invert(); - - ins8250_device &comuart(INS8250(config, "comuart", 1.8432_MHz_XTAL)); - comuart.out_int_callback().set(FUNC(cdc721_state::int_w<0>)); - comuart.out_tx_callback().set("comm", FUNC(rs232_port_device::write_txd)); - comuart.out_dtr_callback().set("comm", FUNC(rs232_port_device::write_dtr)); - comuart.out_rts_callback().set("comm", FUNC(rs232_port_device::write_rts)); - - rs232_port_device &comm(RS232_PORT(config, "comm", default_rs232_devices, nullptr)); - comm.rxd_handler().set("comuart", FUNC(ins8250_device::rx_w)); - comm.dsr_handler().set("comuart", FUNC(ins8250_device::dsr_w)); - comm.dcd_handler().set("comuart", FUNC(ins8250_device::dcd_w)); - comm.cts_handler().set("comuart", FUNC(ins8250_device::cts_w)); - comm.ri_handler().set("comuart", FUNC(ins8250_device::ri_w)); - - ins8250_device &kbduart(INS8250(config, "kbduart", 1.8432_MHz_XTAL)); - kbduart.out_int_callback().set(FUNC(cdc721_state::int_w<5>)); - kbduart.out_dtr_callback().set(FUNC(cdc721_state::foreign_char_bank_w<2>)); - //kbduart.out_rts_callback().set(FUNC(cdc721_state::alarm_high_low_w)); - kbduart.out_out1_callback().set(FUNC(cdc721_state::foreign_char_bank_w<1>)); - kbduart.out_out2_callback().set(FUNC(cdc721_state::foreign_char_bank_w<0>)); - - ins8250_device &pauart(INS8250(config, "pauart", 1.8432_MHz_XTAL)); - pauart.out_int_callback().set("int2", FUNC(input_merger_device::in_w<1>)); - pauart.out_tx_callback().set("cha", FUNC(rs232_port_device::write_txd)); - pauart.out_dtr_callback().set("cha", FUNC(rs232_port_device::write_dtr)); - pauart.out_rts_callback().set("cha", FUNC(rs232_port_device::write_rts)); - - rs232_port_device &cha(RS232_PORT(config, "cha", default_rs232_devices, nullptr)); - cha.rxd_handler().set("pauart", FUNC(ins8250_device::rx_w)); - cha.dsr_handler().set("pauart", FUNC(ins8250_device::dsr_w)); - cha.dcd_handler().set("pauart", FUNC(ins8250_device::dcd_w)); - cha.cts_handler().set("pauart", FUNC(ins8250_device::cts_w)); - cha.ri_handler().set("pauart", FUNC(ins8250_device::ri_w)); - - ins8250_device &pbuart(INS8250(config, "pbuart", 1.8432_MHz_XTAL)); - pbuart.out_int_callback().set("int2", FUNC(input_merger_device::in_w<0>)); - pbuart.out_tx_callback().set("chb", FUNC(rs232_port_device::write_txd)); - pbuart.out_dtr_callback().set("chb", FUNC(rs232_port_device::write_dtr)); - pbuart.out_rts_callback().set("chb", FUNC(rs232_port_device::write_rts)); - - rs232_port_device &chb(RS232_PORT(config, "chb", default_rs232_devices, nullptr)); - chb.rxd_handler().set("pbuart", FUNC(ins8250_device::rx_w)); - chb.dsr_handler().set("pbuart", FUNC(ins8250_device::dsr_w)); - chb.dcd_handler().set("pbuart", FUNC(ins8250_device::dcd_w)); - chb.cts_handler().set("pbuart", FUNC(ins8250_device::cts_w)); - chb.ri_handler().set("pbuart", FUNC(ins8250_device::ri_w)); - - INPUT_MERGER_ANY_HIGH(config, "int2").output_handler().set(FUNC(cdc721_state::int_w<2>)); // 74S05 (open collector) -} - -ROM_START( cdc721 ) - ROM_REGION( 0x4000, "resident", 0 ) - ROM_LOAD( "66315359", 0x0000, 0x2000, CRC(20ff3eb4) SHA1(5f15cb14893d75a46dc66d3042356bb054d632c2) ) - ROM_LOAD( "66315361", 0x2000, 0x2000, CRC(21d59d09) SHA1(9c087537d68c600ddf1eb9b009cf458231c279f4) ) - - ROM_REGION( 0x4000, "16krom", 0 ) - ROM_LOAD( "66315360", 0x0000, 0x1000, CRC(feaa0fc5) SHA1(f06196553a1f10c07b2f7e495823daf7ea26edee) ) - //ROM_FILL(0x0157,1,0xe0) - - ROM_REGION( 0x4000, "rompack", ROMREGION_ERASE00 ) - - ROM_REGION( 0x2000, "chargen", 0 ) - ROM_LOAD( "66315039", 0x0000, 0x1000, CRC(5c9aa968) SHA1(3ec7c5f25562579e6ed3fda7562428ff5e6b9550) ) - ROM_LOAD( "66307828", 0x1000, 0x1000, CRC(ac97136f) SHA1(0d280e1aa4b9502bd390d260f83af19bf24905cd) ) // foreign character ROM - - // Graphics Firmware pack - ROM_REGION( 0x4000, "gfxfw", 0 ) // load at 0x8000 - ROM_LOAD( "66315369.bin", 0x0000, 0x2000, CRC(224d3368) SHA1(e335ef6cd56d77194235f5a2a7cf2af9ebf42342) ) - ROM_LOAD( "66315370.bin", 0x2000, 0x2000, CRC(2543bf32) SHA1(1ac73a0e475d9fd86fba054e1a7a443d5bad1987) ) -ROM_END - -COMP( 1981, cdc721, 0, 0, cdc721, cdc721, cdc721_state, empty_init, "Control Data Corporation", "721 Display Terminal", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) |