src/mess/drivers/unixpc.c
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| 14 | 14 | #include "emu.h" |
| 15 | 15 | #include "cpu/m68000/m68000.h" |
| 16 | 16 | #include "devices/messram.h" |
| 17 | #include "machine/wd17xx.h" |
| 18 | #include "devices/flopdrv.h" |
| 17 | 19 | #include "unixpc.lh" |
| 18 | 20 | |
| 19 | 21 | |
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| 27 | 29 | unixpc_state(running_machine &machine, const driver_device_config_base &config) |
| 28 | 30 | : driver_device(machine, config), |
| 29 | 31 | m_maincpu(*this, "maincpu"), |
| 30 | | m_ram(*this, "messram") |
| 32 | m_ram(*this, "messram"), |
| 33 | m_wd2797(*this, "wd2797"), |
| 34 | m_floppy(*this, FLOPPY_0) |
| 31 | 35 | { } |
| 32 | 36 | |
| 33 | 37 | required_device<cpu_device> m_maincpu; |
| 34 | 38 | required_device<running_device> m_ram; |
| 39 | required_device<running_device> m_wd2797; |
| 40 | required_device<running_device> m_floppy; |
| 35 | 41 | |
| 36 | 42 | virtual bool video_update(screen_device &screen, bitmap_t &bitmap, const rectangle &cliprect); |
| 37 | 43 | |
| 38 | 44 | virtual void machine_reset(); |
| 39 | 45 | |
| 46 | DECLARE_READ16_MEMBER( line_printer_r ); |
| 40 | 47 | DECLARE_WRITE16_MEMBER( misc_control_w ); |
| 48 | DECLARE_WRITE16_MEMBER( disk_control_w ); |
| 41 | 49 | DECLARE_WRITE16_MEMBER( romlmap_w ); |
| 42 | 50 | |
| 51 | DECLARE_WRITE_LINE_MEMBER( wd2797_intrq_w ); |
| 52 | DECLARE_WRITE_LINE_MEMBER( wd2797_drq_w ); |
| 53 | |
| 54 | UINT16 *m_mapram; |
| 43 | 55 | UINT16 *m_videoram; |
| 44 | 56 | }; |
| 45 | 57 | |
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| 72 | 84 | MISC |
| 73 | 85 | ***************************************************************************/ |
| 74 | 86 | |
| 87 | READ16_MEMBER( unixpc_state::line_printer_r ) |
| 88 | { |
| 89 | UINT16 data = 0; |
| 90 | |
| 91 | data |= 1; // no dial tone detected |
| 92 | data |= 1 << 1; // no parity error |
| 93 | data |= 0 << 2; // hdc intrq |
| 94 | data |= wd17xx_intrq_r(m_wd2797) << 3; |
| 95 | |
| 96 | logerror("line_printer_r: %04x\n", data); |
| 97 | |
| 98 | return data; |
| 99 | } |
| 100 | |
| 75 | 101 | WRITE16_MEMBER( unixpc_state::misc_control_w ) |
| 76 | 102 | { |
| 103 | logerror("misc_control_w: %04x\n", data); |
| 104 | |
| 77 | 105 | output_set_value("led_0", !BIT(data, 8)); |
| 78 | 106 | output_set_value("led_1", !BIT(data, 9)); |
| 79 | 107 | output_set_value("led_2", !BIT(data, 10)); |
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| 82 | 110 | |
| 83 | 111 | |
| 84 | 112 | /*************************************************************************** |
| 113 | FLOPPY |
| 114 | ***************************************************************************/ |
| 115 | |
| 116 | WRITE16_MEMBER( unixpc_state::disk_control_w ) |
| 117 | { |
| 118 | logerror("disk_control_w: %04x\n", data); |
| 119 | |
| 120 | floppy_mon_w(m_floppy, !BIT(data, 5)); |
| 121 | |
| 122 | // bit 6 = floppy selected / not selected |
| 123 | wd17xx_set_drive(m_wd2797, 0); |
| 124 | } |
| 125 | |
| 126 | WRITE_LINE_MEMBER( unixpc_state::wd2797_intrq_w ) |
| 127 | { |
| 128 | logerror("wd2797_intrq_w: %d\n", state); |
| 129 | } |
| 130 | |
| 131 | WRITE_LINE_MEMBER( unixpc_state::wd2797_drq_w ) |
| 132 | { |
| 133 | logerror("wd2797_drq_w: %d\n", state); |
| 134 | } |
| 135 | |
| 136 | |
| 137 | /*************************************************************************** |
| 85 | 138 | VIDEO |
| 86 | 139 | ***************************************************************************/ |
| 87 | 140 | |
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| 102 | 155 | |
| 103 | 156 | static ADDRESS_MAP_START( unixpc_mem, ADDRESS_SPACE_PROGRAM, 16, unixpc_state ) |
| 104 | 157 | AM_RANGE(0x000000, 0x3fffff) AM_RAMBANK("bank1") |
| 158 | AM_RANGE(0x400000, 0x4007ff) AM_RAM AM_BASE(m_mapram) |
| 105 | 159 | AM_RANGE(0x420000, 0x427fff) AM_RAM AM_BASE(m_videoram) |
| 160 | AM_RANGE(0x470000, 0x470001) AM_READ(line_printer_r) |
| 106 | 161 | AM_RANGE(0x4a0000, 0x4a0001) AM_WRITE(misc_control_w) |
| 162 | AM_RANGE(0x4e0000, 0x4e0001) AM_WRITE(disk_control_w) |
| 107 | 163 | AM_RANGE(0x800000, 0xbfffff) AM_MIRROR(0x7fc000) AM_ROM AM_REGION("bootrom", 0) |
| 164 | AM_RANGE(0xe10000, 0xe10007) AM_DEVREADWRITE8_LEGACY("wd2797", wd17xx_r, wd17xx_w, 0x00ff) |
| 108 | 165 | AM_RANGE(0xe43000, 0xe43001) AM_WRITE(romlmap_w) |
| 109 | 166 | ADDRESS_MAP_END |
| 110 | 167 | |
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| 121 | 178 | MACHINE DRIVERS |
| 122 | 179 | ***************************************************************************/ |
| 123 | 180 | |
| 181 | static const floppy_config unixpc_floppy_config = |
| 182 | { |
| 183 | DEVCB_NULL, |
| 184 | DEVCB_NULL, |
| 185 | DEVCB_NULL, |
| 186 | DEVCB_NULL, |
| 187 | DEVCB_NULL, |
| 188 | FLOPPY_STANDARD_5_25_DSDD, |
| 189 | FLOPPY_OPTIONS_NAME(default), |
| 190 | NULL |
| 191 | }; |
| 192 | |
| 193 | static const wd17xx_interface unixpc_wd17xx_intf = |
| 194 | { |
| 195 | DEVCB_NULL, |
| 196 | DEVCB_DRIVER_LINE_MEMBER(unixpc_state, wd2797_intrq_w), |
| 197 | DEVCB_DRIVER_LINE_MEMBER(unixpc_state, wd2797_drq_w), |
| 198 | { FLOPPY_0, NULL, NULL, NULL } |
| 199 | }; |
| 200 | |
| 124 | 201 | static MACHINE_CONFIG_START( unixpc, unixpc_state ) |
| 125 | 202 | // basic machine hardware |
| 126 | 203 | MDRV_CPU_ADD("maincpu", M68010, XTAL_10MHz) |
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| 141 | 218 | MDRV_RAM_ADD("messram") |
| 142 | 219 | MDRV_RAM_DEFAULT_SIZE("1M") |
| 143 | 220 | MDRV_RAM_EXTRA_OPTIONS("2M") |
| 221 | |
| 222 | // floppy |
| 223 | MDRV_WD2797_ADD("wd2797", unixpc_wd17xx_intf) |
| 224 | MDRV_FLOPPY_DRIVE_ADD(FLOPPY_0, unixpc_floppy_config) |
| 144 | 225 | MACHINE_CONFIG_END |
| 145 | 226 | |
| 146 | 227 | |