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-rw-r--r--src/mess/drivers/tandy2k.c908
1 files changed, 0 insertions, 908 deletions
diff --git a/src/mess/drivers/tandy2k.c b/src/mess/drivers/tandy2k.c
deleted file mode 100644
index dc3f8e64352..00000000000
--- a/src/mess/drivers/tandy2k.c
+++ /dev/null
@@ -1,908 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Curt Coder
-/***************************************************************************
-
- Tandy 2000
-
-****************************************************************************/
-
-/*
-
- TODO:
-
- - floppy
- - HDL is also connected to WP/TS input where TS is used to detect motor status
- - 3 second motor off delay timer
- - video (video RAM is at memory top - 0x1400, i.e. 0x1ec00)
- - keyboard ROM
- - hires graphics board
- - WD1010
- - hard disk
- - mouse
-
-*/
-
-#include "includes/tandy2k.h"
-#include "machine/pckeybrd.h"
-
-#define LOG 1
-
-// Read/Write Handlers
-
-void tandy2k_state::update_drq()
-{
- int drq0 = CLEAR_LINE;
- int drq1 = CLEAR_LINE;
-
- for (int i = 0; i < 4; i++)
- {
- if (BIT(m_dma_mux, 0 + i))
- {
- if (BIT(m_dma_mux, 4 + i))
- drq1 |= m_busdmarq[i];
- else
- drq0 |= m_busdmarq[i];
- }
- }
-
- m_maincpu->drq0_w(drq0);
- m_maincpu->drq1_w(drq1);
-}
-
-void tandy2k_state::dma_request(int line, int state)
-{
- m_busdmarq[line] = state;
-
- update_drq();
-}
-
-void tandy2k_state::speaker_update()
-{
- int level = !(m_spkrdata & m_outspkr);
-
- m_speaker->level_w(level);
-}
-
-READ8_MEMBER( tandy2k_state::char_ram_r )
-{
- return m_char_ram[offset];
-}
-
-WRITE8_MEMBER( tandy2k_state::char_ram_w )
-{
- m_char_ram[offset] = data;
-}
-
-READ8_MEMBER( tandy2k_state::videoram_r )
-{
- address_space &program = m_maincpu->space(AS_PROGRAM);
-
- offs_t addr = (m_vram_base << 15) | (offset << 1);
- UINT16 data = program.read_word(addr);
-
- // character
- m_drb0->write(space, 0, data & 0xff);
-
- // attributes
- m_drb1->write(space, 0, data >> 8);
-
- return data & 0xff;
-}
-
-READ8_MEMBER( tandy2k_state::enable_r )
-{
- /*
-
- bit signal description
-
- 0 RS-232 ring indicator
- 1 RS-232 carrier detect
- 2
- 3
- 4
- 5
- 6
- 7 _ACLOW
-
- */
-
- UINT8 data = 0x80;
-
- data |= m_rs232->ri_r();
- data |= m_rs232->dcd_r() << 1;
-
- return data;
-}
-
-WRITE8_MEMBER( tandy2k_state::enable_w )
-{
- /*
-
- bit signal description
-
- 0 KBEN keyboard enable
- 1 EXTCLK external baud rate clock
- 2 SPKRGATE enable periodic speaker output
- 3 SPKRDATA direct output to speaker
- 4 RFRQGATE enable refresh and baud rate clocks
- 5 FDCRESET* reset 8272
- 6 TMRIN0 enable 80186 timer 0
- 7 TMRIN1 enable 80186 timer 1
-
- */
-
- if (LOG) logerror("ENABLE %02x\n", data);
-
- // keyboard enable
- m_kb->power_w(BIT(data, 0));
- machine().device<pc_keyboard_device>("pc_keyboard")->enable(BIT(data, 0));
-
- // external baud rate clock
- m_extclk = BIT(data, 1);
-
- // speaker gate
- m_pit->write_gate0(BIT(data, 2));
-
- // speaker data
- m_spkrdata = BIT(data, 3);
- speaker_update();
-
- // refresh and baud rate clocks
- m_pit->write_gate1(BIT(data, 4));
- m_pit->write_gate2(BIT(data, 4));
-
- // FDC reset
- if (!BIT(data, 5))
- {
- m_fdc->soft_reset();
- }
-
- // timer 0 enable
- m_maincpu->tmrin0_w(BIT(data, 6));
-
- // timer 1 enable
- m_maincpu->tmrin1_w(BIT(data, 7));
-}
-
-WRITE8_MEMBER( tandy2k_state::dma_mux_w )
-{
- /*
-
- bit description
-
- 0 DMA channel 0 enable
- 1 DMA channel 1 enable
- 2 DMA channel 2 enable
- 3 DMA channel 3 enable
- 4 DMA channel 0 select
- 5 DMA channel 1 select
- 6 DMA channel 2 select
- 7 DMA channel 3 select
-
- */
-
- if (LOG) logerror("DMA MUX %02x\n", data);
-
- m_dma_mux = data;
-
- // check for DMA error
- int drq0 = 0;
- int drq1 = 0;
-
- for (int ch = 0; ch < 4; ch++)
- {
- if (BIT(data, ch)) { if (BIT(data, ch + 4)) drq1++; else drq0++; }
- }
-
- int dme = (drq0 > 2) || (drq1 > 2);
-
- m_pic1->ir6_w(dme);
-
- update_drq();
-}
-
-READ8_MEMBER( tandy2k_state::kbint_clr_r )
-{
- if (m_pb_sel == KBDINEN)
- {
- m_kb->busy_w(1);
- m_pic1->ir0_w(CLEAR_LINE);
-
- return machine().device<pc_keyboard_device>("pc_keyboard")->read(space, 0);
- }
-
- return 0xff;
-}
-
-READ16_MEMBER( tandy2k_state::vpac_r )
-{
- if (ACCESSING_BITS_0_7)
- {
- return m_vpac->read(space, offset);
- }
- else
- {
- return 0xff00;
- }
-}
-
-WRITE16_MEMBER( tandy2k_state::vpac_w )
-{
- if (ACCESSING_BITS_0_7)
- {
- m_vpac->write(space, offset, data & 0xff);
- }
- else
- {
- addr_ctrl_w(space, offset, data >> 8);
- }
-}
-
-READ8_MEMBER( tandy2k_state::fldtc_r )
-{
- if (LOG) logerror("FLDTC\n");
-
- fldtc_w(space, 0, 0);
-
- return 0;
-}
-
-WRITE8_MEMBER( tandy2k_state::fldtc_w )
-{
- m_fdc->tc_w(1);
- m_fdc->tc_w(false);
-}
-
-WRITE8_MEMBER( tandy2k_state::addr_ctrl_w )
-{
- /*
-
- bit signal description
-
- 8 A15 A15 of video access
- 9 A16 A16 of video access
- 10 A17 A17 of video access
- 11 A18 A18 of video access
- 12 A19 A19 of video access
- 13 CLKSP0 clock speed (0 = 22.4 MHz, 1 = 28 MHz)
- 14 CLKCNT dots/char (0 = 10 [800x400], 1 = 8 [640x400])
- 15 VIDOUTS selects the video source for display on monochrome monitor
-
- */
-
- if (LOG) logerror("Address Control %02x\n", data);
-
- // video access
- m_vram_base = data & 0x1f;
-
- // video clock speed
- int clkspd = BIT(data, 5);
- int clkcnt = BIT(data, 6);
-
- if (m_clkspd != clkspd || m_clkcnt != clkcnt)
- {
- float busdotclk = XTAL_16MHz*28 / (clkspd ? 16 : 20);
- float vidcclk = busdotclk / (clkcnt ? 8 : 10);
-
- m_vpac->set_character_width(clkcnt ? 8 : 10);
- m_vpac->set_unscaled_clock(vidcclk);
-
- m_vac->set_unscaled_clock(busdotclk);
-
- m_timer_vidldsh->adjust(attotime::from_hz(vidcclk), 0, attotime::from_hz(vidcclk));
-
- m_clkspd = clkspd;
- m_clkcnt = clkcnt;
- }
-
- // video source select
- m_vidouts = BIT(data, 7);
-}
-
-// Memory Maps
-
-static ADDRESS_MAP_START( tandy2k_mem, AS_PROGRAM, 16, tandy2k_state )
- ADDRESS_MAP_UNMAP_HIGH
-// AM_RANGE(0x00000, 0xdffff) AM_RAM
- AM_RANGE(0xe0000, 0xf7fff) AM_RAM AM_SHARE("hires_ram")
- AM_RANGE(0xf8000, 0xfbfff) AM_READWRITE8(char_ram_r, char_ram_w, 0x00ff)
- AM_RANGE(0xfc000, 0xfdfff) AM_MIRROR(0x2000) AM_ROM AM_REGION(I80186_TAG, 0)
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( tandy2k_io, AS_IO, 16, tandy2k_state )
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x00000, 0x00001) AM_MIRROR(0x8) AM_READWRITE8(enable_r, enable_w, 0x00ff)
- AM_RANGE(0x00002, 0x00003) AM_MIRROR(0x8) AM_WRITE8(dma_mux_w, 0x00ff)
- AM_RANGE(0x00004, 0x00005) AM_MIRROR(0x8) AM_READWRITE8(fldtc_r, fldtc_w, 0x00ff)
- AM_RANGE(0x00010, 0x00013) AM_MIRROR(0xc) AM_DEVREADWRITE8(I8251A_TAG, i8251_device, data_r, data_w, 0x00ff)
- AM_RANGE(0x00030, 0x00033) AM_MIRROR(0xc) AM_DEVICE8(I8272A_TAG, i8272a_device, map, 0x00ff)
- AM_RANGE(0x00040, 0x00047) AM_MIRROR(0x8) AM_DEVREADWRITE8(I8253_TAG, pit8253_device, read, write, 0x00ff)
- AM_RANGE(0x00052, 0x00053) AM_MIRROR(0x8) AM_READ8(kbint_clr_r, 0x00ff)
- AM_RANGE(0x00050, 0x00057) AM_MIRROR(0x8) AM_DEVREADWRITE8(I8255A_TAG, i8255_device, read, write, 0x00ff)
- AM_RANGE(0x00060, 0x00063) AM_MIRROR(0xc) AM_DEVREADWRITE8(I8259A_0_TAG, pic8259_device, read, write, 0x00ff)
- AM_RANGE(0x00070, 0x00073) AM_MIRROR(0xc) AM_DEVREADWRITE8(I8259A_1_TAG, pic8259_device, read, write, 0x00ff)
- AM_RANGE(0x00080, 0x00081) AM_MIRROR(0xe) AM_DEVREADWRITE8(I8272A_TAG, i8272a_device, mdma_r, mdma_w, 0x00ff)
-// AM_RANGE(0x00100, 0x0017f) AM_DEVREADWRITE8(CRT9007_TAG, crt9007_t, read, write, 0x00ff) AM_WRITE8(addr_ctrl_w, 0xff00)
- AM_RANGE(0x00100, 0x0017f) AM_READWRITE(vpac_r, vpac_w)
-// AM_RANGE(0x00180, 0x00180) AM_READ8(hires_status_r, 0x00ff)
-// AM_RANGE(0x00180, 0x001bf) AM_WRITE(hires_palette_w)
-// AM_RANGE(0x001a0, 0x001a0) AM_READ8(hires_plane_w, 0x00ff)
-// AM_RANGE(0x0ff00, 0x0ffff) AM_READWRITE(i186_internal_port_r, i186_internal_port_w)
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( tandy2k_hd_io, AS_IO, 16, tandy2k_state )
- AM_IMPORT_FROM(tandy2k_io)
-// AM_RANGE(0x000e0, 0x000ff) AM_WRITE8(hdc_dack_w, 0x00ff)
-// AM_RANGE(0x0026c, 0x0026d) AM_DEVREADWRITE8(WD1010_TAG, wd1010_device, hdc_reset_r, hdc_reset_w, 0x00ff)
-// AM_RANGE(0x0026e, 0x0027f) AM_DEVREADWRITE8(WD1010_TAG, wd1010_device, wd1010_r, wd1010_w, 0x00ff)
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( vpac_mem, AS_0, 8, tandy2k_state )
- AM_RANGE(0x0000, 0x3fff) AM_READ(videoram_r)
-ADDRESS_MAP_END
-
-// Input Ports
-
-static INPUT_PORTS_START( tandy2k )
- // defined in machine/tandy2kb.c
- PORT_INCLUDE(pc_keyboard)
-INPUT_PORTS_END
-
-// Video
-
-UINT32 tandy2k_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
-{
- const pen_t *pen = m_palette->pens();
- address_space &program = m_maincpu->space(AS_PROGRAM);
-
- for (int y = 0; y < 400; y++)
- {
- UINT8 cgra = y % 16;
-
- for (int sx = 0; sx < 80; sx++)
- {
- offs_t addr = m_ram->size() - 0x1400 + (((y / 16) * 80) + sx) * 2;
- UINT8 vidla = program.read_word(addr);
- UINT8 data = m_char_ram[(vidla << 4) | cgra];
-
- for (int x = 0; x < 8; x++)
- {
- int color = BIT(data, 7);
- bitmap.pix32(y, (sx * 8) + x) = pen[color];
- data <<= 1;
- }
- }
- }
-
- return 0;
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::vpac_vlt_w )
-{
- m_drb0->ren_w(state);
- m_drb0->clrcnt_w(state);
-
- m_drb1->ren_w(state);
- m_drb1->clrcnt_w(state);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::vpac_drb_w )
-{
- m_drb0->tog_w(state);
- m_drb1->tog_w(state);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::vpac_wben_w )
-{
- m_drb0->wen1_w(state);
- m_drb1->wen1_w(state);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::vpac_cblank_w )
-{
- m_cblank = state;
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::vpac_slg_w )
-{
- m_slg = state;
-
- m_vac->slg_w(state);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::vpac_sld_w )
-{
- m_sld = state;
-
- m_vac->sld_w(state);
-}
-
-WRITE8_MEMBER( tandy2k_state::vidla_w )
-{
- m_vidla = data;
-}
-
-WRITE8_MEMBER( tandy2k_state::drb_attr_w )
-{
- /*
-
- bit description
-
- 0 BLC -> DBLC (delayed 2 CCLKs)
- 1 BKC -> DBKC (delayed 2 CCLKs)
- 2 CHABL
- 3 MS0
- 4 MS1
- 5 BLINK
- 6 INT
- 7 REVID
-
- */
-
- m_blc = BIT(data, 0);
- m_bkc = BIT(data, 1);
- m_vac->chabl_w(BIT(data, 2));
- m_vac->ms0_w(BIT(data, 3));
- m_vac->ms1_w(BIT(data, 4));
- m_vac->blink_w(BIT(data, 5));
- m_vac->intin_w(BIT(data, 6));
- m_vac->revid_w(BIT(data, 7));
-}
-
-CRT9021_DRAW_CHARACTER_MEMBER( tandy2k_state::vac_draw_character )
-{
- const pen_t *pen = m_palette->pens();
-
- for (int i = 0; i < 8; i++)
- {
- int color = BIT(video, 7 - i);
-
- bitmap.pix32(y, x++) = pen[color];
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER( tandy2k_state::vidldsh_tick )
-{
- m_drb0->rclk_w(0);
- m_drb0->wclk_w(0);
- m_drb1->rclk_w(0);
- m_drb1->wclk_w(0);
- m_vac->ld_sh_w(0);
-
- // 1 busdotclk later
- m_vac->blc_w(BIT(m_dblc, 0));
- m_dblc >>= 1;
- m_dblc |= m_blc << 2;
-
- m_vac->bkc_w(BIT(m_dbkc, 0));
- m_dbkc >>= 1;
- m_dbkc |= m_bkc << 2;
-
- m_vac->retbl_w(BIT(m_dblank, 0));
- m_dblank >>= 1;
- m_dblank |= m_cblank << 2;
-
- if (!m_slg)
- {
- m_cgra >>= 1;
- m_cgra |= m_sld << 3;
- }
-
- UINT8 vidd = m_char_ram[(m_vidla << 4) | m_cgra];
- m_vac->write(vidd);
-
- m_drb0->rclk_w(1);
- m_drb0->wclk_w(1);
- m_drb1->rclk_w(1);
- m_drb1->wclk_w(1);
- m_vac->ld_sh_w(1);
-}
-
-// Intel 8251A Interface
-
-WRITE_LINE_MEMBER( tandy2k_state::rxrdy_w )
-{
- m_rxrdy = state;
- m_pic0->ir2_w(m_rxrdy || m_txrdy);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::txrdy_w )
-{
- m_txrdy = state;
- m_pic0->ir2_w(m_rxrdy || m_txrdy);
-}
-
-// Intel 8253 Interface
-
-WRITE_LINE_MEMBER( tandy2k_state::outspkr_w )
-{
- m_outspkr = state;
- speaker_update();
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::intbrclk_w )
-{
- if (!m_extclk)
- {
- m_uart->write_txc(state);
- m_uart->write_rxc(state);
- }
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::rfrqpulse_w )
-{
- // memory refresh counter up
-}
-
-// Intel 8255A Interface
-
-WRITE_LINE_MEMBER( tandy2k_state::write_centronics_ack )
-{
- m_centronics_ack = state;
- m_i8255a->pc6_w(state);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::write_centronics_busy )
-{
- m_centronics_busy = state;
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::write_centronics_perror )
-{
- m_centronics_perror = state;
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::write_centronics_select )
-{
- m_centronics_select = state;
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::write_centronics_fault )
-{
- m_centronics_fault = state;
-}
-
-READ8_MEMBER( tandy2k_state::ppi_pb_r )
-{
- /*
-
- bit signal description
-
- 0 LPRIN0 auxiliary input 0
- 1 LPRIN1 auxiliary input 1
- 2 LPRIN2 auxiliary input 2
- 3 _LPRACK acknowledge
- 4 _LPRFLT fault
- 5 _LPRSEL select
- 6 LPRPAEM paper empty
- 7 LPRBSY busy
-
- */
-
- UINT8 data = 0;
-
- switch (m_pb_sel)
- {
- case LPINEN:
- // printer acknowledge
- data |= m_centronics_ack << 3;
-
- // printer fault
- data |= m_centronics_fault << 4;
-
- // printer select
- data |= m_centronics_select << 5;
-
- // paper empty
- data |= m_centronics_perror << 6;
-
- // printer busy
- data |= m_centronics_busy << 7;
- break;
-
- case KBDINEN:
- // keyboard data
- data = m_kbdin;
- break;
-
- case PORTINEN:
- // PCB revision
- data = 0x03;
- break;
- }
-
- return data;
-}
-
-WRITE8_MEMBER( tandy2k_state::ppi_pc_w )
-{
- /*
-
- bit signal description
-
- 0 port A direction
- 1 port B input select bit 0
- 2 port B input select bit 1
- 3 LPRINT13 interrupt
- 4 STROBE IN
- 5 INBUFFULL
- 6 _LPRACK
- 7 _LPRDATSTB
-
- */
-
- // input select
- m_pb_sel = (data >> 1) & 0x03;
-
- // interrupt
- m_pic1->ir3_w(BIT(data, 3));
-
- // printer strobe
- m_centronics->write_strobe(BIT(data, 7));
-}
-
-
-// Intel 8259 Interfaces
-
-/*
-
- IR0 MEMINT00
- IR1 TMOINT01
- IR2 SERINT02
- IR3 BUSINT03
- IR4 FLDINT04
- IR5 BUSINT05
- IR6 HDCINT06
- IR7 BUSINT07
-
-*/
-
-/*
-
- IR0 KBDINT10
- IR1 VIDINT11
- IR2 RATINT12
- IR3 LPRINT13
- IR4 MCPINT14
- IR5 MEMINT15
- IR6 DMEINT16
- IR7 BUSINT17
-
-*/
-
-// Intel 8272 Interface
-
-WRITE_LINE_MEMBER( tandy2k_state::fdc_drq_w )
-{
- dma_request(0, state);
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::fdc_hdl_w )
-{
- m_floppy0->mon_w(!state);
- m_floppy1->mon_w(!state);
-}
-
-FLOPPY_FORMATS_MEMBER( tandy2k_state::floppy_formats )
- FLOPPY_TANDY_2000_FORMAT
-FLOPPY_FORMATS_END
-
-static SLOT_INTERFACE_START( tandy2k_floppies )
- SLOT_INTERFACE( "525qd", FLOPPY_525_QD )
-SLOT_INTERFACE_END
-
-// Keyboard
-
-WRITE_LINE_MEMBER( tandy2k_state::kbdclk_w )
-{
- if (!m_kbdclk && state)
- {
- m_kbdin >>= 1;
- m_kbdin |= m_kb->data_r() << 7;
- }
-
- m_kbdclk = state;
-}
-
-WRITE_LINE_MEMBER( tandy2k_state::kbddat_w )
-{
- if (!m_kbddat && state)
- {
- m_kb->busy_w(m_kbdclk);
- m_pic1->ir0_w(!m_kbdclk);
- }
-
- m_kbddat = state;
-}
-
-READ8_MEMBER( tandy2k_state::irq_callback )
-{
- return (offset ? m_pic1 : m_pic0)->acknowledge();
-}
-
-// Machine Initialization
-
-void tandy2k_state::machine_start()
-{
- address_space &program = m_maincpu->space(AS_PROGRAM);
- UINT8 *ram = m_ram->pointer();
- int ram_size = m_ram->size();
-
- program.install_ram(0x00000, ram_size - 1, ram);
-
- m_char_ram.allocate(0x1000);
-
- // register for state saving
- save_item(NAME(m_dma_mux));
- save_item(NAME(m_kbdclk));
- save_item(NAME(m_kbddat));
- save_item(NAME(m_kbdin));
- save_item(NAME(m_extclk));
- save_item(NAME(m_rxrdy));
- save_item(NAME(m_txrdy));
- save_item(NAME(m_pb_sel));
- save_item(NAME(m_vidouts));
- save_item(NAME(m_clkspd));
- save_item(NAME(m_clkcnt));
- save_item(NAME(m_outspkr));
- save_item(NAME(m_spkrdata));
-}
-
-void tandy2k_state::device_reset_after_children()
-{
- machine().device<pc_keyboard_device>("pc_keyboard")->enable(0);
-}
-
-// Machine Driver
-
-static MACHINE_CONFIG_START( tandy2k, tandy2k_state )
- // basic machine hardware
- MCFG_CPU_ADD(I80186_TAG, I80186, XTAL_16MHz)
- MCFG_CPU_PROGRAM_MAP(tandy2k_mem)
- MCFG_CPU_IO_MAP(tandy2k_io)
- MCFG_80186_IRQ_SLAVE_ACK(DEVREAD8(DEVICE_SELF, tandy2k_state, irq_callback))
-
- // video hardware
- MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
- MCFG_SCREEN_REFRESH_RATE(50)
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) // not accurate
- MCFG_SCREEN_SIZE(640, 400)
- MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 400-1)
- //MCFG_SCREEN_UPDATE_DEVICE(CRT9021B_TAG, crt9021_t, screen_update)
- MCFG_SCREEN_UPDATE_DRIVER(tandy2k_state, screen_update)
-
- MCFG_PALETTE_ADD_MONOCHROME_GREEN("palette")
-
- MCFG_DEVICE_ADD(CRT9007_TAG, CRT9007, XTAL_16MHz*28/20/8)
- MCFG_DEVICE_ADDRESS_MAP(AS_0, vpac_mem)
- MCFG_CRT9007_CHARACTER_WIDTH(8)
- MCFG_CRT9007_INT_CALLBACK(DEVWRITELINE(I8259A_1_TAG, pic8259_device, ir1_w))
- MCFG_CRT9007_VS_CALLBACK(DEVWRITELINE(CRT9021B_TAG, crt9021_t, vsync_w))
- MCFG_CRT9007_VLT_CALLBACK(WRITELINE(tandy2k_state, vpac_vlt_w))
- MCFG_CRT9007_CURS_CALLBACK(DEVWRITELINE(CRT9021B_TAG, crt9021_t, cursor_w))
- MCFG_CRT9007_DRB_CALLBACK(WRITELINE(tandy2k_state, vpac_drb_w))
- MCFG_CRT9007_WBEN_CALLBACK(WRITELINE(tandy2k_state, vpac_wben_w))
- MCFG_CRT9007_CBLANK_CALLBACK(WRITELINE(tandy2k_state, vpac_cblank_w))
- MCFG_CRT9007_SLG_CALLBACK(WRITELINE(tandy2k_state, vpac_slg_w))
- MCFG_CRT9007_SLD_CALLBACK(WRITELINE(tandy2k_state, vpac_sld_w))
- MCFG_VIDEO_SET_SCREEN(SCREEN_TAG)
-
- MCFG_DEVICE_ADD(CRT9212_0_TAG, CRT9212, 0)
- MCFG_CRT9212_WEN2_VCC()
- MCFG_CRT9212_DOUT_CALLBACK(WRITE8(tandy2k_state, vidla_w))
-
- MCFG_DEVICE_ADD(CRT9212_1_TAG, CRT9212, 0)
- MCFG_CRT9212_WEN2_VCC()
- MCFG_CRT9212_DOUT_CALLBACK(WRITE8(tandy2k_state, drb_attr_w))
-
- MCFG_DEVICE_ADD(CRT9021B_TAG, CRT9021, XTAL_16MHz*28/20)
- MCFG_VIDEO_SET_SCREEN(SCREEN_TAG)
-
- MCFG_TIMER_DRIVER_ADD("vidldsh", tandy2k_state, vidldsh_tick)
-
- // sound hardware
- MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
-
- // devices
- MCFG_DEVICE_ADD(I8255A_TAG, I8255A, 0)
- MCFG_I8255_OUT_PORTA_CB(DEVWRITE8("cent_data_out", output_latch_device, write))
- MCFG_I8255_IN_PORTB_CB(READ8(tandy2k_state, ppi_pb_r))
- MCFG_I8255_OUT_PORTC_CB(WRITE8(tandy2k_state, ppi_pc_w))
-
- MCFG_DEVICE_ADD(I8251A_TAG, I8251, 0)
- MCFG_I8251_TXD_HANDLER(DEVWRITELINE(RS232_TAG, rs232_port_device, write_txd))
- MCFG_I8251_DTR_HANDLER(DEVWRITELINE(RS232_TAG, rs232_port_device, write_dtr))
- MCFG_I8251_RTS_HANDLER(DEVWRITELINE(RS232_TAG, rs232_port_device, write_rts))
- MCFG_I8251_RXRDY_HANDLER(WRITELINE(tandy2k_state, rxrdy_w))
- MCFG_I8251_TXRDY_HANDLER(WRITELINE(tandy2k_state, txrdy_w))
-
- MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, NULL)
- MCFG_RS232_RXD_HANDLER(DEVWRITELINE(I8251A_TAG, i8251_device, write_rxd))
- MCFG_RS232_DSR_HANDLER(DEVWRITELINE(I8251A_TAG, i8251_device, write_dsr))
- // TODO pin 15 external transmit clock
- // TODO pin 17 external receiver clock
-
- MCFG_DEVICE_ADD(I8253_TAG, PIT8253, 0)
- MCFG_PIT8253_CLK0(XTAL_16MHz/16)
- MCFG_PIT8253_OUT0_HANDLER(WRITELINE(tandy2k_state, outspkr_w))
- MCFG_PIT8253_CLK1(XTAL_16MHz/8)
- MCFG_PIT8253_OUT1_HANDLER(WRITELINE(tandy2k_state, intbrclk_w))
- //MCFG_PIT8253_CLK2(XTAL_16MHz/8)
- //MCFG_PIT8253_OUT2_HANDLER(WRITELINE(tandy2k_state, rfrqpulse_w))
-
- MCFG_PIC8259_ADD(I8259A_0_TAG, DEVWRITELINE(I80186_TAG, i80186_cpu_device, int0_w), VCC, NULL)
-
- MCFG_PIC8259_ADD(I8259A_1_TAG, DEVWRITELINE(I80186_TAG, i80186_cpu_device, int1_w), VCC, NULL)
-
- MCFG_I8272A_ADD(I8272A_TAG, true)
- downcast<i8272a_device *>(device)->set_select_lines_connected(true);
- MCFG_UPD765_INTRQ_CALLBACK(DEVWRITELINE(I8259A_0_TAG, pic8259_device, ir4_w))
- MCFG_UPD765_DRQ_CALLBACK(WRITELINE(tandy2k_state, fdc_drq_w))
- MCFG_UPD765_HDL_CALLBACK(WRITELINE(tandy2k_state, fdc_hdl_w))
- MCFG_FLOPPY_DRIVE_ADD(I8272A_TAG ":0", tandy2k_floppies, "525qd", tandy2k_state::floppy_formats)
- MCFG_FLOPPY_DRIVE_ADD(I8272A_TAG ":1", tandy2k_floppies, "525qd", tandy2k_state::floppy_formats)
-
- MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_devices, "printer")
- MCFG_CENTRONICS_ACK_HANDLER(WRITELINE(tandy2k_state, write_centronics_ack))
- MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(tandy2k_state, write_centronics_busy))
- MCFG_CENTRONICS_PERROR_HANDLER(WRITELINE(tandy2k_state, write_centronics_perror))
- MCFG_CENTRONICS_SELECT_HANDLER(WRITELINE(tandy2k_state, write_centronics_select))
- MCFG_CENTRONICS_FAULT_HANDLER(WRITELINE(tandy2k_state, write_centronics_fault))
-
- MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", CENTRONICS_TAG)
-
- MCFG_DEVICE_ADD(TANDY2K_KEYBOARD_TAG, TANDY2K_KEYBOARD, 0)
- MCFG_TANDY2000_KEYBOARD_CLOCK_CALLBACK(WRITELINE(tandy2k_state, kbdclk_w))
- MCFG_TANDY2000_KEYBOARD_DATA_CALLBACK(WRITELINE(tandy2k_state, kbddat_w))
-
- // temporary until the tandy keyboard has a rom dump
- MCFG_PC_KEYB_ADD("pc_keyboard", DEVWRITELINE(I8259A_1_TAG, pic8259_device, ir0_w))
-
-
- // software lists
- MCFG_SOFTWARE_LIST_ADD("flop_list", "tandy2k")
-
- // internal ram
- MCFG_RAM_ADD(RAM_TAG)
- MCFG_RAM_DEFAULT_SIZE("128K")
- MCFG_RAM_EXTRA_OPTIONS("256K,384K,512K,640K,768K,896K")
-MACHINE_CONFIG_END
-
-static MACHINE_CONFIG_DERIVED( tandy2k_hd, tandy2k )
- // basic machine hardware
- MCFG_CPU_MODIFY(I80186_TAG)
- MCFG_CPU_IO_MAP(tandy2k_hd_io)
-
- // Tandon TM502 hard disk
- MCFG_HARDDISK_ADD("harddisk0")
- //MCFG_WD1010_ADD(WD1010_TAG, wd1010_intf)
- //MCFG_WD1100_11_ADD(WD1100_11_TAG, wd1100_11_intf)
-MACHINE_CONFIG_END
-
-// ROMs
-
-ROM_START( tandy2k )
- ROM_REGION( 0x2000, I80186_TAG, 0 )
- ROM_LOAD16_BYTE( "484a00.u48", 0x0000, 0x1000, CRC(a5ee3e90) SHA1(4b1f404a4337c67065dd272d62ff88dcdee5e34b) )
- ROM_LOAD16_BYTE( "474600.u47", 0x0001, 0x1000, CRC(345701c5) SHA1(a775cbfa110b7a88f32834aaa2a9b868cbeed25b) )
-
- ROM_REGION( 0x100, "plds", 0 )
- ROM_LOAD( "82s153.u62", 0x000, 0x100, NO_DUMP ) // interrupt/DMA
- ROM_LOAD( "82s153.u68", 0x000, 0x100, NO_DUMP ) // video
- ROM_LOAD( "82s153.u95", 0x000, 0x100, NO_DUMP ) // memory timing
- ROM_LOAD( "pal10l8.u82", 0x000, 0x100, NO_DUMP ) // video
- ROM_LOAD( "pal16l8a.u102", 0x000, 0x100, NO_DUMP ) // bus interface
- ROM_LOAD( "pal16l8a.u103", 0x000, 0x100, NO_DUMP ) // bus interface
- ROM_LOAD( "pal20l8.u103", 0x000, 0x100, NO_DUMP ) // bus interface, alternate
- ROM_LOAD( "pal16r6a.u16", 0x000, 0x100, NO_DUMP ) // HDC
-ROM_END
-
-#define rom_tandy2khd rom_tandy2k
-
-// System Drivers
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS
-COMP( 1983, tandy2k, 0, 0, tandy2k, tandy2k, driver_device, 0, "Tandy Radio Shack", "Tandy 2000", MACHINE_NOT_WORKING )
-COMP( 1983, tandy2khd, tandy2k, 0, tandy2k_hd, tandy2k, driver_device, 0, "Tandy Radio Shack", "Tandy 2000HD", MACHINE_NOT_WORKING )