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This commit is contained in:
Robbbert 2014-03-23 12:05:07 +00:00
parent 3d87782c0d
commit a063ecccd6
2 changed files with 27 additions and 13 deletions
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21
src/mess/drivers/amust.c
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@ -4,14 +4,23 @@
Amust Compak
A magazine called it the Amust Executive 816. Trying to confirm if in fact
it's the same computer.
2014-03-21 Skeleton driver. [Robbbert]
An unusual-looking CP/M computer.
There are no manuals or schematics known to exist.
The entire driver is guesswork.
A blurry photo of the board shows 2x 8251, 2x 8255, 8253, uPD765 and a 6845.
The board has LH0080 (Z80A), 2x 8251, 2x 8255, 8253, uPD765A and a HD46505SP-2.
The videoram is a 6116 RAM. There is a piezo beeper. There are 3 crystals,
but the writing is too blurred.
X1 = 4.9152 (serial chips?), X2 = 16 (CPU), X3 = 14.31818 MHz (Video?).
Floppy capacity: 790k
Their are numerous jumpers, all of which perform unknown functions.
The keyboard is a plug-in unit, same idea as Kaypro and Zorba. It has these
chips: INS8035N-6, F74145, 74LS373N, SN75451BP, 2716 rom with label KBD-3.
Crystal: 3.579545 MHz
The main rom is identical between the 2 halves, except that the initial
crtc parameters are slightly different. I've chosen to ignore the first
@ -26,6 +35,7 @@ B = Boot from floppy
ToDo:
- Everything
- Need software
- If booting straight to CP/M, the load message should be in the middle of the screen.
****************************************************************************/
@ -245,7 +255,7 @@ DRIVER_INIT_MEMBER( amust_state, amust )
static MACHINE_CONFIG_START( amust, amust_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_16MHz / 4) // guess clock
MCFG_CPU_ADD("maincpu",Z80, XTAL_16MHz / 4)
MCFG_CPU_PROGRAM_MAP(amust_mem)
MCFG_CPU_IO_MAP(amust_io)
MCFG_CPU_VBLANK_INT_DRIVER("screen", amust_state, irq_vs)
@ -262,7 +272,7 @@ static MACHINE_CONFIG_START( amust, amust_state )
MCFG_GFXDECODE_ADD("gfxdecode", "palette", amust)
/* Devices */
MCFG_MC6845_ADD("crtc", MC6845, "screen", XTAL_16MHz / 8, amust_crtc)
MCFG_MC6845_ADD("crtc", H46505, "screen", XTAL_14_31818MHz / 8, amust_crtc)
MCFG_ASCII_KEYBOARD_ADD("keybd", keyboard_intf)
MCFG_UPD765A_ADD("fdc", false, true)
MCFG_FLOPPY_DRIVE_ADD("fdc:0", amust_floppies, "525dd", floppy_image_device::default_floppy_formats)
@ -277,6 +287,9 @@ ROM_START( amust )
ROM_REGION( 0x800, "chargen", 0 )
ROM_LOAD( "cg4.rom", 0x000, 0x800, CRC(52e7b9d8) SHA1(cc6d457634eb688ccef471f72bddf0424e64b045) )
ROM_REGION( 0x800, "keyboard", 0 )
ROM_LOAD( "kbd_3.rom", 0x000, 0x800, NO_DUMP )
ROM_REGION( 0x800, "videoram", ROMREGION_ERASE00 )
ROM_END

19
src/mess/drivers/pencil2.c
View File

@ -64,6 +64,8 @@ but is banked out of view of a BASIC program.
KNOWN CARTS
SD-BASIC V1.0
SD-BASIC V2.0
Zaxxon
Smurf
ToDo:
@ -87,12 +89,11 @@ class pencil2_state : public driver_device
{
public:
pencil2_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_centronics(*this, "centronics"),
m_cass(*this, "cassette")
{
}
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_centronics(*this, "centronics")
, m_cass(*this, "cassette")
{}
DECLARE_WRITE8_MEMBER(port10_w);
DECLARE_WRITE8_MEMBER(port30_w);
@ -103,13 +104,13 @@ public:
DECLARE_WRITE_LINE_MEMBER(write_centronics_busy);
DECLARE_CUSTOM_INPUT_MEMBER(printer_ready_r);
DECLARE_CUSTOM_INPUT_MEMBER(printer_ack_r);
private:
virtual void machine_reset();
int m_centronics_busy;
int m_centronics_ack;
required_device<cpu_device> m_maincpu;
required_device<centronics_device> m_centronics;
required_device<cassette_image_device> m_cass;
int m_centronics_busy;
int m_centronics_ack;
};
static ADDRESS_MAP_START(pencil2_mem, AS_PROGRAM, 8, pencil2_state)