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https://github.com/holub/mame
synced 2025-04-25 17:56:43 +03:00
Merge branch 'master' of https://github.com/mamedev/mame
This commit is contained in:
RobertoFresca
commit
6a2956c426
@ -4,7 +4,8 @@
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Camputers Lynx
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05/2009 Skeleton driver.
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2009-05 Skeleton driver.
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2015-10-23 Working
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The Lynx was an 8-bit British home computer that was first released
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in early 1983 as a 48 kB model.
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@ -62,7 +63,8 @@
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48k and 96k are basically the same machine. 128k is different.
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48k and 96k are basically the same machine. 128k is different. Most software for
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one won't work properly on the other, due to major hardware differences.
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This computer is weird, because it allows reads and writes from multiple banks
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at the same time. We can write to multiple banks, but we must limit ourselves
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@ -81,26 +83,36 @@
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- Cassette tapes made on 128k are a different speed to 48k tapes. To load a 128k
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tape on a 48k system, enter TAPE 3 before loading. (2,3,4,5 all seem to work).
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- When loading, there's no wildcard; you must specify the name.
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- INT should be activated by the MC6845 CURS pin (inverted), or by holding down
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the BREAK key. However, the rom leaves interrupts disabled, so none of this works.
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- The 128k has major hardware differences, which means that most programs written
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for the 48k/96k will not display anything useful. BASIC-based text programs are
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the most likely to work.
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- INT should be activated by the MC6845 CURS pin, but this doesn't happen. Using
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VSYNC instead. Required for CP/M to boot.
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- Info about disks:
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- You must firstly do XROM to initialise the DOS ROM.
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- Then do EXT DIR with a Lynx-formatted disk, or EXT BOOT with a CP/M disk.
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- Then, on a Lynx-formatted disk, do EXT LOAD "name" or EXT MLOAD "name".
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To Do:
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- Need disk-based software (only ones found are LDF format)
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- disk (coded but not working)
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- printer
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- joysticks
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- UART type COM8017
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Bugs:
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- YNXVADERS: Top row of invaders is missing and can't be killed, but they
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continue to fire at you. This makes the game unwinnable.
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- UART type COM8017 (48k,96k only) (not used by any programs)
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- There's a few games that are not perfectly perfect, but it runs at least
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as well as any other Lynx emulator.
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Game bugs (reproducible in Jynx):
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- 3D Monster Craze: When attacked, garbage on screen
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- 3D Monster Craze: When you find the key, the game freezes
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- LogiChess: unable to enter an acceptable move
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- Power Blaster: Bad Tape
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- Power Blaster: Common version is a Bad Tape
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- YNXVADERS: Colours of top 2 rows of invaders should be white and yellow
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but they show as magenta and red. After game ends, title screen has wrong
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colours.
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Game Hints:
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Most games have instructions or are quite obvious.
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- Power Blaster. Using debug.exe, change byte 1965 from FE to F2 to fix
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the loading. Then, arrows to turn, Shift to clean out a whole row of dots.
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You can then move into the vacated areas. Even though it says you have
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3 lives, you actually only have 1.
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- Backgammon. This is just the instructions. The game is missing.
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****************************************************************************/
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@ -130,12 +142,8 @@ public:
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, m_floppy1(*this, "fdc:1")
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{ }
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// 48k
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DECLARE_WRITE8_MEMBER(bank1_w);
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DECLARE_WRITE8_MEMBER(bank5_w);
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DECLARE_WRITE8_MEMBER(bank6_w);
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DECLARE_WRITE8_MEMBER(bank7_w);
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DECLARE_WRITE8_MEMBER(bank8_w);
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DECLARE_WRITE8_MEMBER(port58_w); // drive select etc
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DECLARE_WRITE8_MEMBER(port7f_w); // banking 48k
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DECLARE_READ8_MEMBER(port80_r); // cassin for 48k
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@ -143,6 +151,7 @@ public:
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DECLARE_READ8_MEMBER(port82_r); // cassin for 128k
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DECLARE_WRITE8_MEMBER(port82_w); // banking 128k
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DECLARE_WRITE8_MEMBER(port84_w); // dac port 48k
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DECLARE_INPUT_CHANGED_MEMBER(brk_key);
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DECLARE_MACHINE_RESET(lynx48k);
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DECLARE_MACHINE_RESET(lynx128k);
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DECLARE_DRIVER_INIT(lynx48k);
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@ -217,7 +226,7 @@ d7 = read from bank 4 */
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membank("bankr5")->set_entry(12);
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membank("bankr6")->set_entry(13);
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membank("bankr7")->set_entry(14);
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membank("bankr8")->set_entry(15);
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membank("bankr8")->set_entry(BIT(m_port58, 4) ? 15 : 7);
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break;
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case 0x30:
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case 0x34:
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@ -323,9 +332,7 @@ d0 = read from bank 4 */
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membank("bankr8")->set_entry(7);
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break;
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case 0x02:
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case 0x06:
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case 0x0a:
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case 0x0e:
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membank("bankr1")->set_entry(8);
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membank("bankr2")->set_entry(9);
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membank("bankr3")->set_entry(10);
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@ -349,7 +356,9 @@ d0 = read from bank 4 */
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membank("bankr8")->set_entry(BIT(m_port58, 4) ? 15 : 7);
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break;
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case 0x04:
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case 0x06:
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case 0x0c:
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case 0x0e:
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membank("bankr1")->set_entry(16);
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membank("bankr2")->set_entry(17);
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membank("bankr3")->set_entry(18);
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@ -405,8 +414,7 @@ static ADDRESS_MAP_START( lynx48k_mem, AS_PROGRAM, 8, camplynx_state )
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AM_RANGE(0xa000,0xbfff) AM_READ_BANK("bankr6")
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AM_RANGE(0xc000,0xdfff) AM_READ_BANK("bankr7")
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AM_RANGE(0xe000,0xffff) AM_READ_BANK("bankr8")
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AM_RANGE(0x0000,0x7fff) AM_WRITE(bank1_w)
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AM_RANGE(0x8000,0xffff) AM_WRITE(bank5_w)
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AM_RANGE(0x0000,0xffff) AM_WRITE(bank6_w)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( lynx128k_mem, AS_PROGRAM, 8, camplynx_state )
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@ -478,7 +486,7 @@ ADDRESS_MAP_END
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static INPUT_PORTS_START( lynx48k )
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PORT_START("LINE0")
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) PORT_CHANGED_MEMBER(DEVICE_SELF, camplynx_state, brk_key, 0)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
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PORT_BIT(0x0e, IP_ACTIVE_LOW, IPT_UNUSED)
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@ -554,6 +562,11 @@ static INPUT_PORTS_START( lynx48k )
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Delete") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
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INPUT_PORTS_END
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INPUT_CHANGED_MEMBER( camplynx_state::brk_key )
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{
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m_maincpu->set_input_line(0, newval ? CLEAR_LINE : ASSERT_LINE);
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}
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WRITE8_MEMBER( camplynx_state::bank1_w )
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{
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if BIT(m_wbyte, 0)
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@ -566,18 +579,26 @@ WRITE8_MEMBER( camplynx_state::bank1_w )
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m_p_ram[offset+0x40000] = data;
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}
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WRITE8_MEMBER( camplynx_state::bank5_w )
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WRITE8_MEMBER( camplynx_state::bank6_w )
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{
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if BIT(m_wbyte, 0)
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m_p_ram[offset+0x18000] = data;
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m_p_ram[offset+0x10000] = data;
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offset &= 0x5fff;
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if ((m_wbyte & 0x22) == 0x02)
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{
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m_p_ram[(offset & 0x5fff) | 0x28000] = data;
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m_p_ram[offset | 0x20000] = data;
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m_p_ram[offset | 0x22000] = data;
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m_p_ram[offset | 0x28000] = data;
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m_p_ram[offset | 0x2a000] = data;
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}
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if ((m_wbyte & 0x44) == 0x04)
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{
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m_p_ram[(offset & 0x5fff) | 0x38000] = data;
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m_p_ram[offset | 0x30000] = data;
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m_p_ram[offset | 0x32000] = data;
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m_p_ram[offset | 0x38000] = data;
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m_p_ram[offset | 0x3a000] = data;
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}
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}
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@ -738,7 +759,6 @@ d7 = 125ns or 250ns */
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else
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port7f_w(space, 0, m_bankdata);
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}
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m_fdc->dden_w(BIT(data, 7));
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floppy_image_device *floppy = NULL;
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if ((data & 3) == 0) floppy = m_floppy0->get_device();
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@ -811,7 +831,7 @@ static MACHINE_CONFIG_START( lynx48k, camplynx_state )
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MCFG_MC6845_SHOW_BORDER_AREA(false)
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MCFG_MC6845_CHAR_WIDTH(8)
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MCFG_MC6845_UPDATE_ROW_CB(camplynx_state, lynx48k_update_row)
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MCFG_MC6845_OUT_CUR_CB(DEVWRITELINE("maincpu", z80_device, irq_line))
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MCFG_MC6845_OUT_VSYNC_CB(DEVWRITELINE("maincpu", z80_device, irq_line))
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MACHINE_CONFIG_END
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static MACHINE_CONFIG_DERIVED( lynx96k, lynx48k )
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@ -851,7 +871,7 @@ static MACHINE_CONFIG_START( lynx128k, camplynx_state )
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MCFG_MC6845_SHOW_BORDER_AREA(false)
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MCFG_MC6845_CHAR_WIDTH(8)
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MCFG_MC6845_UPDATE_ROW_CB(camplynx_state, lynx128k_update_row)
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MCFG_MC6845_OUT_CUR_CB(DEVWRITELINE("maincpu", z80_device, irq_line))
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MCFG_MC6845_OUT_VSYNC_CB(DEVWRITELINE("maincpu", z80_device, irq_line))
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MCFG_FRAGMENT_ADD(lynx_disk)
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MACHINE_CONFIG_END
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@ -916,5 +936,5 @@ ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
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COMP( 1983, lynx48k, 0, 0, lynx48k, lynx48k, camplynx_state, lynx48k, "Camputers", "Lynx 48k", 0 )
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COMP( 1983, lynx96k, lynx48k, 0, lynx96k, lynx48k, camplynx_state, lynx48k, "Camputers", "Lynx 96k", MACHINE_NOT_WORKING)
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COMP( 1983, lynx128k, lynx48k, 0, lynx128k, lynx48k, camplynx_state, lynx128k, "Camputers", "Lynx 128k", MACHINE_NOT_WORKING)
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COMP( 1983, lynx96k, lynx48k, 0, lynx96k, lynx48k, camplynx_state, lynx48k, "Camputers", "Lynx 96k", 0 )
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COMP( 1983, lynx128k, lynx48k, 0, lynx128k, lynx48k, camplynx_state, lynx128k, "Camputers", "Lynx 128k", 0 )
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