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-rw-r--r--src/mame/drivers/osbexec.cpp621
1 files changed, 0 insertions, 621 deletions
diff --git a/src/mame/drivers/osbexec.cpp b/src/mame/drivers/osbexec.cpp
deleted file mode 100644
index 7e35a8fd47f..00000000000
--- a/src/mame/drivers/osbexec.cpp
+++ /dev/null
@@ -1,621 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Wilbert Pol
-/***************************************************************************
-
- Osborne Executive driver file
-
-***************************************************************************/
-
-#include "emu.h"
-
-#include "bus/rs232/rs232.h"
-#include "cpu/z80/z80.h"
-#include "imagedev/floppy.h"
-#include "machine/z80daisy.h"
-#include "machine/6821pia.h"
-#include "machine/input_merger.h"
-#include "machine/pit8253.h"
-#include "machine/ram.h"
-#include "machine/ripple_counter.h"
-#include "machine/wd_fdc.h"
-#include "machine/z80sio.h"
-#include "sound/spkrdev.h"
-
-#include "emupal.h"
-#include "screen.h"
-#include "softlist.h"
-#include "speaker.h"
-
-
-#define MAIN_CLOCK XTAL(23'961'600)
-
-#define MODEM_PORT_TAG "modem"
-#define PRINTER_PORT_TAG "printer"
-
-
-class osbexec_state : public driver_device
-{
-public:
- osbexec_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_screen(*this, "screen")
- , m_mb8877(*this, "mb8877")
- , m_messram( *this, RAM_TAG)
- , m_pia(*this, "pia_%u", 0U)
- , m_rtc(*this, "rtc")
- , m_sio(*this, "sio")
- , m_speaker(*this, "speaker")
- , m_floppy(*this, "mb8877:%u:525ssdd", 0U)
- , m_kbd_row(*this, "ROW%u", 0U)
- { }
-
- void osbexec(machine_config &config);
-
- void init_osbexec();
-
-private:
- required_device<z80_device> m_maincpu;
- required_device<screen_device> m_screen;
- required_device<mb8877_device> m_mb8877;
- required_device<ram_device> m_messram;
- required_device_array<pia6821_device, 2> m_pia;
- required_device<ripple_counter_device> m_rtc;
- required_device<z80sio_device> m_sio;
- required_device<speaker_sound_device> m_speaker;
- required_device_array<floppy_image_device, 2> m_floppy;
- required_ioport_array<8> m_kbd_row;
-
- virtual void video_start() override;
-
- uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- bitmap_ind16 m_bitmap;
-
- std::unique_ptr<uint8_t[]> m_fontram;
- std::unique_ptr<uint8_t[]> m_vram;
- uint8_t *m_ram_0000;
- uint8_t *m_ram_c000;
- uint8_t m_temp_attr;
- emu_timer *m_video_timer;
-
- /* PIA 0 (UD12) */
- uint8_t m_pia0_porta;
- uint8_t m_pia0_portb;
- int m_pia0_cb2; /* 60/50 */
-
- /* PIA 1 (UD8) */
-
- void set_banks()
- {
- uint8_t *ram_ptr = m_messram->pointer();
-
- m_ram_0000 = ram_ptr;
-
- if ( m_pia0_porta & 0x01 )
- m_ram_0000 += 0x10000;
-
- membank( "0000" )->set_base( m_ram_0000 + 0x0000 );
- membank( "2000" )->set_base( m_ram_0000 + 0x2000 );
- membank( "4000" )->set_base( m_ram_0000 + 0x4000 );
- m_ram_c000 = m_ram_0000 + 0xc000;
- membank( "e000" )->set_base( m_ram_0000 + 0xe000 );
-
- if ( m_pia0_porta & 0x80 )
- {
- membank( "0000" )->set_base( memregion("maincpu")->base());
- /* When BIOS is enabled 2000-3FFF is set to the "ROM RAM" */
- membank( "2000" )->set_base( ram_ptr + 0x20000 );
- }
-
- if ( m_pia0_porta & 0x40 )
- m_ram_c000 = m_vram.get();
- }
-
- void osbexec_0000_w(offs_t offset, uint8_t data);
- uint8_t osbexec_c000_r(offs_t offset);
- void osbexec_c000_w(offs_t offset, uint8_t data);
- uint8_t osbexec_kbd_r(offs_t offset);
- uint8_t osbexec_rtc_r();
- virtual void machine_reset() override;
- TIMER_CALLBACK_MEMBER(osbexec_video_callback);
- uint8_t osbexec_pia0_a_r();
- void osbexec_pia0_a_w(uint8_t data);
- uint8_t osbexec_pia0_b_r();
- void osbexec_pia0_b_w(uint8_t data);
- DECLARE_WRITE_LINE_MEMBER(osbexec_pia0_ca2_w);
- DECLARE_WRITE_LINE_MEMBER(osbexec_pia0_cb2_w);
- DECLARE_WRITE_LINE_MEMBER(modem_txclk_w);
- DECLARE_WRITE_LINE_MEMBER(modem_rxclk_w);
- DECLARE_WRITE_LINE_MEMBER(modem_dsr_w);
- DECLARE_WRITE_LINE_MEMBER(modem_ri_w);
- DECLARE_WRITE_LINE_MEMBER(comm_clk_a_w);
- void osbexec_io(address_map &map);
- void osbexec_mem(address_map &map);
-};
-
-
-void osbexec_state::osbexec_0000_w(offs_t offset, uint8_t data)
-{
- /* Font RAM writing is enabled when ROM bank is enabled */
- if ( m_pia0_porta & 0x80 )
- {
- if ( offset < 0x1000 )
- m_fontram[ offset ] = data;
- }
- else
- {
- m_ram_0000[ offset ] = data;
- }
-}
-
-
-uint8_t osbexec_state::osbexec_c000_r(offs_t offset)
-{
- uint8_t data = m_ram_c000[offset];
-
- if ( ( m_pia0_porta & 0x40 ) && offset < 0x1000 )
- {
- m_temp_attr = m_ram_c000[ 0x1000 + offset ];
- }
-
- return data;
-}
-
-
-void osbexec_state::osbexec_c000_w(offs_t offset, uint8_t data)
-{
- m_ram_c000[offset] = data;
-
- if ( ( m_pia0_porta & 0x40 ) && offset < 0x1000 )
- {
- m_ram_c000[ 0x1000 + offset ] = m_temp_attr;
- }
-}
-
-
-uint8_t osbexec_state::osbexec_kbd_r(offs_t offset)
-{
- uint8_t data = 0xFF;
-
- for (int j = 0; j < 8; j++)
- if (BIT(offset, j + 8))
- data &= m_kbd_row[j]->read();
-
- return data;
-}
-
-
-uint8_t osbexec_state::osbexec_rtc_r()
-{
- // 74LS244 buffer @ UF13
- return m_rtc->count();
-}
-
-
-void osbexec_state::osbexec_mem(address_map &map)
-{
- map(0x0000, 0x1FFF).bankr("0000").w(FUNC(osbexec_state::osbexec_0000_w)); /* ROM and maybe also banked ram */
- map(0x2000, 0x3FFF).bankrw("2000"); /* Banked RAM */
- map(0x4000, 0xBFFF).bankrw("4000"); /* Banked RAM */
- map(0xC000, 0xDFFF).rw(FUNC(osbexec_state::osbexec_c000_r), FUNC(osbexec_state::osbexec_c000_w)); /* Video ram / Banked RAM */
- map(0xE000, 0xEFFF).bankrw("e000"); /* Banked RAM */
- map(0xF000, 0xFFFF).ram(); /* 4KB of non-banked RAM for system stack etc */
-}
-
-
-void osbexec_state::osbexec_io(address_map &map)
-{
- map.unmap_value_high();
- map(0x00, 0x03).mirror(0xff00).rw(m_pia[0], FUNC(pia6821_device::read), FUNC(pia6821_device::write)); /* 6821 PIA @ UD12 */
- map(0x04, 0x07).mirror(0xff00).rw("ctc", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); /* 8253 @UD1 */
- map(0x08, 0x0B).mirror(0xff00).rw(m_mb8877, FUNC(wd_fdc_device_base::read), FUNC(wd_fdc_device_base::write)); /* MB8877 @ UB17 input clock = 1MHz */
- map(0x0C, 0x0F).mirror(0xff00).rw(m_sio, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w)); /* SIO @ UD4 */
- map(0x10, 0x13).mirror(0xff00).rw(m_pia[1], FUNC(pia6821_device::read), FUNC(pia6821_device::write)); /* 6821 PIA @ UD8 */
- map(0x14, 0x17).select(0xff00).r(FUNC(osbexec_state::osbexec_kbd_r)); /* KBD */
- map(0x18, 0x1b).mirror(0xff00).r(FUNC(osbexec_state::osbexec_rtc_r)); /* "RTC" @ UE13/UF13 */
- /* ?? - vid ? */
-}
-
-
-static INPUT_PORTS_START( osbexec )
- PORT_START("ROW0")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('[') PORT_CHAR(']')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('\'') PORT_CHAR('"')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
-
- PORT_START("ROW1")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
-
- PORT_START("ROW2")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR(21)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_CHAR(25)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(20)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR(18)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(5)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR(23)
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR(17)
-
- PORT_START("ROW3")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_CHAR(11)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_CHAR(10)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_CHAR(8)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR(7)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR(6)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(4)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(19)
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR(1)
-
- PORT_START("ROW4")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_CHAR(14)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_CHAR(2)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR(22)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(3)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(24)
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(26)
-
- PORT_START("ROW5")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(15)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR(16)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
-
- PORT_START("ROW6")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(12)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('\\') PORT_CHAR('|')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
-
- PORT_START("ROW7")
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_DIPNAME( 0x08, 0, "Alpha Lock" ) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
- PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
-INPUT_PORTS_END
-
-
-void osbexec_state::video_start()
-{
- m_screen->register_screen_bitmap(m_bitmap);
-}
-
-uint32_t osbexec_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- copybitmap(bitmap, m_bitmap, 0, 0, 0, 0, cliprect);
- return 0;
-}
-
-/*
- UD12 - 6821 PIA
-
- Port A:
- PA7 - ROM BANK ENA
- PA6 - VRAM BANK ENA
- PA5 - BANK6ENA
- PA4 - BANK5ENA
- PA3 - BANK4ENA
- PA2 - BANK3ENA
- PA1 - BANK2ENA
- PA0 - BANK1ENA
- CA1 - DMA IRQ
- CA2 - KBD STB (i/o)
-
- Port B:
- PB7 - MODEM RI (input)
- PB6 - MODEM DSR (input)
- PB5 - TXC SEL
- PB4 - RXC SEL
- PB3 - speaker
- PB2 - DSEL2
- PB1 - DSEL1
- PB0 - DDEN
- CB1 - VBlank (input)
- CB2 - 60/50 (?)
-*/
-
-uint8_t osbexec_state::osbexec_pia0_a_r()
-{
- return m_pia0_porta;
-}
-
-
-void osbexec_state::osbexec_pia0_a_w(uint8_t data)
-{
- //logerror("osbexec_pia0_a_w: %02x\n", data );
-
- m_pia0_porta = data;
-
- set_banks();
-}
-
-
-uint8_t osbexec_state::osbexec_pia0_b_r()
-{
- return m_pia0_portb;
-}
-
-
-void osbexec_state::osbexec_pia0_b_w(uint8_t data)
-{
- m_pia0_portb = (m_pia0_portb & 0xc0) | (data & 0x3f);
-
- m_speaker->level_w(!BIT(data, 3));
-
- switch ( data & 0x06 )
- {
- case 0x02:
- m_mb8877->set_floppy(m_floppy[1].target());
- m_floppy[1]->mon_w(0);
- break;
- case 0x04:
- m_mb8877->set_floppy(m_floppy[0].target());
- m_floppy[0]->mon_w(0);
- break;
- default:
- m_mb8877->set_floppy(nullptr);
- break;
- }
-
- m_mb8877->dden_w(( data & 0x01 ) ? 1 : 0 );
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::osbexec_pia0_ca2_w)
-{
- logerror("osbexec_pia0_ca2_w: state = %d\n", state);
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::osbexec_pia0_cb2_w)
-{
- m_pia0_cb2 = state;
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::modem_txclk_w)
-{
- if (BIT(m_pia0_portb, 5))
- m_sio->txca_w(state);
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::modem_rxclk_w)
-{
- if (BIT(m_pia0_portb, 4))
- m_sio->rxca_w(state);
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::modem_dsr_w)
-{
- if (state)
- m_pia0_portb |= 0x40;
- else
- m_pia0_portb &= 0xbf;
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::modem_ri_w)
-{
- if (state)
- m_pia0_portb |= 0x80;
- else
- m_pia0_portb &= 0x7f;
-}
-
-
-WRITE_LINE_MEMBER(osbexec_state::comm_clk_a_w)
-{
- if (!BIT(m_pia0_portb, 5))
- m_sio->txca_w(state);
- if (!BIT(m_pia0_portb, 4))
- m_sio->rxca_w(state);
-}
-
-
-/*
- * The Osborne Executive supports the following disc formats: (TODO: Verify)
- * - Osborne single density: 40 tracks, 10 sectors per track, 256-byte sectors (100 KByte)
- * - Osborne double density: 40 tracks, 5 sectors per track, 1024-byte sectors (200 KByte)
- * - IBM Personal Computer: 40 tracks, 8 sectors per track, 512-byte sectors (160 KByte)
- * - Xerox 820 Computer: 40 tracks, 18 sectors per track, 128-byte sectors (90 KByte)
- * - DEC 1820 double density: 40 tracks, 9 sectors per track, 512-byte sectors (180 KByte)
- *
- */
-
-static void osborne2_floppies(device_slot_interface &device)
-{
- device.option_add("525ssdd", FLOPPY_525_SSDD);
-}
-
-
-TIMER_CALLBACK_MEMBER(osbexec_state::osbexec_video_callback)
-{
- int y = m_screen->vpos();
-
- if ( y < 240 )
- {
- uint16_t row_addr = ( y / 10 ) * 128;
- uint16_t *const p = &m_bitmap.pix(y);
- uint8_t char_line = y % 10;
-
- for ( int x = 0; x < 80; x++ )
- {
- uint8_t ch = m_vram[ row_addr + x ];
- uint8_t attr = m_vram[ 0x1000 + row_addr + x ];
- uint8_t fg_col = ( attr & 0x80 ) ? 2 : 1;
- uint8_t font_bits = m_fontram[ ( ( attr & 0x10 ) ? 0x800 : 0 ) + ( ch & 0x7f ) * 16 + char_line ];
-
- /* Check for underline */
- if (BIT(attr, 6) && char_line == 9)
- font_bits = 0xFF;
-
- /* Check for blink */
- if (BIT(attr, 5) && BIT(m_rtc->count(), 4))
- font_bits = 0;
-
- /* Check for inverse video */
- if (BIT(ch, 7) && !BIT(attr, 4))
- font_bits ^= 0xFF;
-
- for ( int b = 0; b < 8; b++ )
- {
- p[ x * 8 + b ] = ( font_bits & 0x80 ) ? fg_col : 0;
- font_bits <<= 1;
- }
- }
- }
-
- m_video_timer->adjust( m_screen->time_until_pos( y + 1, 0 ) );
-}
-
-
-void osbexec_state::init_osbexec()
-{
- m_vram = make_unique_clear<uint8_t[]>(0x2000);
- m_fontram = make_unique_clear<uint8_t[]>(0x1000);
-
- m_video_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(osbexec_state::osbexec_video_callback),this));
-}
-
-
-void osbexec_state::machine_reset()
-{
- m_pia0_porta = 0xC0; /* Enable ROM and VRAM on reset */
-
- set_banks();
-
- m_video_timer->adjust( m_screen->time_until_pos( 0, 0 ) );
-
- // D0 cleared on interrupt acknowledge cycle by TTL gates at UC21 and UA18
- m_maincpu->set_input_line_vector(0, 0xfe); // Z80
-}
-
-
-static const z80_daisy_config osbexec_daisy_config[] =
-{
- { "sio" },
- { nullptr }
-};
-
-
-void osbexec_state::osbexec(machine_config &config)
-{
- Z80(config, m_maincpu, MAIN_CLOCK/6);
- m_maincpu->set_addrmap(AS_PROGRAM, &osbexec_state::osbexec_mem);
- m_maincpu->set_addrmap(AS_IO, &osbexec_state::osbexec_io);
- m_maincpu->set_daisy_config(osbexec_daisy_config);
-
- SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
- m_screen->set_color(rgb_t::green());
- m_screen->set_screen_update(FUNC(osbexec_state::screen_update));
- m_screen->set_raw(MAIN_CLOCK/2, 768, 0, 640, 260, 0, 240); // May not be correct
- m_screen->set_palette("palette");
- m_screen->screen_vblank().set(m_pia[0], FUNC(pia6821_device::cb1_w));
- m_screen->screen_vblank().append(m_rtc, FUNC(ripple_counter_device::clock_w)).invert();
-
- PALETTE(config, "palette", palette_device::MONOCHROME_HIGHLIGHT);
-
- SPEAKER(config, "mono").front_center();
- SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 1.00);
-
- PIA6821(config, m_pia[0], 0);
- m_pia[0]->readpa_handler().set(FUNC(osbexec_state::osbexec_pia0_a_r));
- m_pia[0]->readpb_handler().set(FUNC(osbexec_state::osbexec_pia0_b_r));
- m_pia[0]->writepa_handler().set(FUNC(osbexec_state::osbexec_pia0_a_w));
- m_pia[0]->writepb_handler().set(FUNC(osbexec_state::osbexec_pia0_b_w));
- m_pia[0]->ca2_handler().set(FUNC(osbexec_state::osbexec_pia0_ca2_w));
- m_pia[0]->cb2_handler().set(FUNC(osbexec_state::osbexec_pia0_cb2_w));
- m_pia[0]->irqa_handler().set("mainirq", FUNC(input_merger_device::in_w<0>));
- m_pia[0]->irqb_handler().set("mainirq", FUNC(input_merger_device::in_w<1>));
-
- PIA6821(config, m_pia[1], 0);
- m_pia[1]->irqa_handler().set("mainirq", FUNC(input_merger_device::in_w<2>));
- m_pia[1]->irqb_handler().set("mainirq", FUNC(input_merger_device::in_w<3>));
-
- INPUT_MERGER_ANY_HIGH(config, "mainirq").output_handler().set_inputline(m_maincpu, 0);
-
- RIPPLE_COUNTER(config, m_rtc); // 74LS393 @ UE13
- m_rtc->set_stages(8); // two halves cascaded
-
- Z80SIO(config, m_sio, MAIN_CLOCK/6);
- m_sio->out_txda_callback().set(MODEM_PORT_TAG, FUNC(rs232_port_device::write_txd));
- m_sio->out_dtra_callback().set(MODEM_PORT_TAG, FUNC(rs232_port_device::write_dtr));
- m_sio->out_rtsa_callback().set(MODEM_PORT_TAG, FUNC(rs232_port_device::write_rts));
- m_sio->out_txdb_callback().set(PRINTER_PORT_TAG, FUNC(rs232_port_device::write_txd));
- m_sio->out_dtrb_callback().set(PRINTER_PORT_TAG, FUNC(rs232_port_device::write_dtr));
- m_sio->out_rtsb_callback().set(PRINTER_PORT_TAG, FUNC(rs232_port_device::write_rts));
- m_sio->out_int_callback().set("mainirq", FUNC(input_merger_device::in_w<4>));
-
- pit8253_device &ctc(PIT8253(config, "ctc", 0));
- ctc.set_clk<0>(MAIN_CLOCK / 13); // divided by 74S161 @ UC25
- ctc.set_clk<1>(MAIN_CLOCK / 13); // divided by 74S161 @ UC25
- ctc.set_clk<2>(MAIN_CLOCK / 12);
- ctc.out_handler<0>().set(FUNC(osbexec_state::comm_clk_a_w));
- ctc.out_handler<0>().append(MODEM_PORT_TAG, FUNC(rs232_port_device::write_etc));
- ctc.out_handler<1>().set(m_sio, FUNC(z80sio_device::rxtxcb_w));
- //ctc.out_handler<2>().set(FUNC(osbexec_state::spindle_clk_w));
-
- rs232_port_device &modem_port(RS232_PORT(config, MODEM_PORT_TAG, default_rs232_devices, nullptr));
- modem_port.rxd_handler().set(m_sio, FUNC(z80sio_device::rxa_w));
- modem_port.dcd_handler().set(m_sio, FUNC(z80sio_device::dcda_w));
- modem_port.dsr_handler().set(FUNC(osbexec_state::modem_dsr_w));
- modem_port.ri_handler().set(FUNC(osbexec_state::modem_ri_w));
- modem_port.cts_handler().set(m_sio, FUNC(z80sio_device::ctsa_w));
- modem_port.txc_handler().set(FUNC(osbexec_state::modem_txclk_w));
- modem_port.rxc_handler().set(FUNC(osbexec_state::modem_rxclk_w));
-
- rs232_port_device &printer_port(RS232_PORT(config, PRINTER_PORT_TAG, default_rs232_devices, nullptr));
- printer_port.rxd_handler().set(m_sio, FUNC(z80sio_device::rxb_w));
- printer_port.dcd_handler().set(m_sio, FUNC(z80sio_device::dcdb_w));
- printer_port.cts_handler().set(m_sio, FUNC(z80sio_device::ctsb_w));
-
- MB8877(config, m_mb8877, MAIN_CLOCK/24);
- m_mb8877->intrq_wr_callback().set(m_pia[1], FUNC(pia6821_device::cb1_w));
- FLOPPY_CONNECTOR(config, "mb8877:0", osborne2_floppies, "525ssdd", floppy_image_device::default_mfm_floppy_formats);
- FLOPPY_CONNECTOR(config, "mb8877:1", osborne2_floppies, "525ssdd", floppy_image_device::default_mfm_floppy_formats);
-
- /* internal ram */
- RAM(config, RAM_TAG).set_default_size("136K"); /* 128KB Main RAM + RAM in ROM bank (8) */
-
- /* software lists */
- SOFTWARE_LIST(config, "flop_list").set_original("osborne2");
-}
-
-
-ROM_START( osbexec )
- ROM_REGION(0x2000, "maincpu", 0)
- ROM_LOAD( "execv12.ud18", 0x0000, 0x2000, CRC(70798c2f) SHA1(2145a72da563bed1d6d455c77e48cc011a5f1153) ) /* Checksum C6B2 */
-ROM_END
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1982, osbexec, 0, 0, osbexec, osbexec, osbexec_state, init_osbexec, "Osborne", "Executive", MACHINE_NOT_WORKING )