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(MESS) Applix: Added ram banking, fixed status signals.

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Now takes 60 seconds to boot up to the ramdisk.
This commit is contained in:
Robbbert 2013-05-23 00:03:03 +00:00
parent 049c0ef741
commit 0f8af7c68e
1 changed files with 22 additions and 10 deletions
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32
src/mess/drivers/applix.c
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@ -12,6 +12,9 @@
The main articles appeared in ETI February/March/April 1987, followed by
other articles in various issues after that.
Current Status:
After 60 seconds, boots to the ramdisk. No keyboard.
TODO: everything!
- Serial device Z8530 Z80SCC
- Keyboard is a standard pc keyboard
@ -87,6 +90,7 @@ public:
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
DECLARE_DRIVER_INIT(applix);
required_device<cpu_device> m_maincpu;
required_device<mc6845_device> m_crtc;
required_device<via6522_device> m_via;
@ -178,7 +182,7 @@ d3 = test switch
*/
READ8_MEMBER( applix_state::port00_r )
{
return m_data_or_cmd | (m_data << 1) | (m_buffer_empty << 2) | ioport("FDC")->read();
return (UINT8)m_data_or_cmd | ((UINT8)m_data << 1) | ((UINT8)m_buffer_empty << 2) | ioport("FDC")->read();
}
/*
@ -204,6 +208,7 @@ d2-7 same as for port08_r
WRITE8_MEMBER( applix_state::port08_w )
{
m_port08 = data;
membank("bank1")->set_entry(BIT(data, 6));
}
READ8_MEMBER( applix_state::port10_r )
@ -248,12 +253,14 @@ WRITE8_MEMBER( applix_state::port60_w )
READ16_MEMBER( applix_state::fdc_stat_r )
{
UINT8 data = 0;
switch (offset)
{
case 0: return m_buffer_empty;
case 1: return m_data;
default: return m_fdc_cmd; // case 2
case 0: data = (UINT8)m_buffer_empty^1; break;
case 1: data = (UINT8)m_data^1; break;
default: data = (UINT8)m_fdc_cmd; // case 2
}
return data << 7;
}
READ16_MEMBER( applix_state::fdc_data_r )
@ -304,7 +311,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( subcpu_mem, AS_PROGRAM, 8, applix_state )
AM_RANGE(0x0000, 0x5fff) AM_ROM
AM_RANGE(0x6000, 0x7fff) AM_RAM
// AM_RANGE(0x8000, 0xffff) AM_RAMBANK("bank1")
AM_RANGE(0x8000, 0xffff) AM_RAMBANK("bank1")
ADDRESS_MAP_END
static ADDRESS_MAP_START( subcpu_io, AS_IO, 8, applix_state )
@ -313,9 +320,9 @@ static ADDRESS_MAP_START( subcpu_io, AS_IO, 8, applix_state )
AM_RANGE(0x08, 0x0f) AM_READWRITE(port08_r,port08_w) //Disk select
AM_RANGE(0x10, 0x17) AM_READWRITE(port10_r,port10_w) //IRQ
AM_RANGE(0x18, 0x1f) AM_READWRITE(port18_r,port18_w) //data&command
AM_RANGE(0x20, 0x23) AM_MIRROR(0x1c) AM_READWRITE(port20_r,port20_w) //SCSI
AM_RANGE(0x20, 0x27) AM_MIRROR(0x18) AM_READWRITE(port20_r,port20_w) //SCSI 5380
AM_RANGE(0x40, 0x43) AM_MIRROR(0x1c) AM_DEVREADWRITE("wd1772", wd1772_t, read, write) //FDC
AM_RANGE(0x60, 0x63) AM_MIRROR(0x1c) AM_READWRITE(port60_r,port60_w) //Z80SCC
AM_RANGE(0x60, 0x63) AM_MIRROR(0x1c) AM_READWRITE(port60_r,port60_w) //anotherZ80SCC
ADDRESS_MAP_END
@ -353,6 +360,7 @@ void applix_state::machine_reset()
{
UINT8* ROM = memregion("maincpu")->base();
memcpy(m_expansion, ROM, 8);
membank("bank1")->set_entry(0);
m_maincpu->reset();
}
@ -516,9 +524,10 @@ ROM_START( applix )
ROM_LOAD( "1616osv.045", 0x00000, 0x20000, CRC(b9f75432) SHA1(278964e2a02b1fe26ff34f09dc040e03c1d81a6d) )
ROM_END
#if 0
DRIVER_INIT_MEMBER(applix_state, applix)
{
#if 0
floppy_connector *con = machine().device<floppy_connector>("wd1772:0");
floppy_image_device *floppy = con ? con->get_device() : 0;
if (floppy)
@ -529,10 +538,13 @@ DRIVER_INIT_MEMBER(applix_state, applix)
floppy->ss_w(0);
}
}
#endif
UINT8 *RAM = memregion("subcpu")->base();
membank("bank1")->configure_entries(0, 2, &RAM[0x8000], 0x8000);
}
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1986, applix, 0, 0, applix, applix, driver_device, 0, "Applix Pty Ltd", "Applix 1616", GAME_NOT_WORKING | GAME_NO_SOUND)
COMP( 1986, applix, 0, 0, applix, applix, applix_state, applix, "Applix Pty Ltd", "Applix 1616", GAME_NOT_WORKING | GAME_NO_SOUND)