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NoteTaker: Attached FDC and floppy drive. [Lord Nightmare]

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Lord-Nightmare 2016-03-10 18:17:22 -05:00
parent 8c6c1a59e5
commit 27bf6e5e80
1 changed files with 23 additions and 4 deletions
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27
src/mame/drivers/notetaker.cpp
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@ -79,6 +79,7 @@ DONE:
#include "machine/ay31015.h"
#include "video/tms9927.h"
#include "sound/dac.h"
#include "machine/wd_fdc.h"
class notetaker_state : public driver_device
{
@ -95,7 +96,10 @@ public:
m_kbduart(*this, "kbduart"),
m_eiauart(*this, "eiauart"),
m_crtc(*this, "crt5027"),
m_dac(*this, "dac")
m_dac(*this, "dac"),
m_fdc(*this, "wd1791"),
m_floppy0(*this, "wd1791:0"),
m_floppy(NULL)
{
}
// devices
@ -105,6 +109,9 @@ public:
required_device<ay31015_device> m_eiauart;
required_device<crt5027_device> m_crtc;
required_device<dac_device> m_dac;
required_device<fd1791_t> m_fdc;
required_device<floppy_connector> m_floppy0;
floppy_image_device *m_floppy;
//declarations
// screen
@ -513,7 +520,7 @@ static ADDRESS_MAP_START(notetaker_iocpu_io, AS_IO, 16, notetaker_state)
//AM_RANGE(0xa0, 0xa1) AM_MIRROR(0x7E18) AM_DEVREADWRITE("debug8255", 8255_device, read, write) // debugger board 8255
AM_RANGE(0xc0, 0xc1) AM_MIRROR(0x7E1E) AM_WRITE(FIFOBus_w) // DAC data write to FIFO
//AM_RANGE(0x100, 0x101) AM_MIRROR(0x7E1E) AM_WRITE(DiskReg_w) I/O register (adc speed, crtc pixel clock enable, +5 and +12v relays for floppy, etc)
//AM_RANGE(0x120, 0x127) AM_MIRROR(0x7E18) AM_DEVREADWRITE("wd1791", fd1971_device) // floppy controller
AM_RANGE(0x120, 0x127) AM_MIRROR(0x7E18) AM_DEVREADWRITE8("wd1791", fd1791_t, read, write, 0x00FF) // floppy controller
AM_RANGE(0x140, 0x15f) AM_MIRROR(0x7E00) AM_DEVREADWRITE8("crt5027", crt5027_device, read, write, 0x00FF) // crt controller
AM_RANGE(0x160, 0x161) AM_MIRROR(0x7E1E) AM_WRITE(LoadDispAddr_w) // loads the start address for the display framebuffer
AM_RANGE(0x1a0, 0x1a1) AM_MIRROR(0x7E10) AM_READ(ReadEIAStatus_r) // read keyboard fifo state
@ -586,12 +593,21 @@ static ADDRESS_MAP_START(notetaker_emulatorcpu_io, AS_IO, 16, notetaker_state)
ADDRESS_MAP_END
*/
/* Input ports */
/* Floppy Image Interface */
static SLOT_INTERFACE_START( notetaker_floppies )
SLOT_INTERFACE( "525dd", FLOPPY_525_DD )
SLOT_INTERFACE_END
/* Machine Start; allocate timers and savestate stuff */
void notetaker_state::machine_start()
{
// allocate the DAC timer, and set it to fire NEVER. We'll set it up properly in IPReset.
m_FIFO_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(notetaker_state::timer_fifoclk),this));
m_FIFO_timer->adjust(attotime::never);
// floppy stuff
m_floppy = NULL;
// savestate stuff
// TODO: add me!
}
@ -649,7 +665,6 @@ void notetaker_state::ep_reset()
{
}
/* Input ports */
static INPUT_PORTS_START( notetakr )
INPUT_PORTS_END
@ -682,6 +697,7 @@ static MACHINE_CONFIG_START( notetakr, notetaker_state )
MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
/* Devices */
MCFG_DEVICE_ADD( "crt5027", CRT5027, (XTAL_36MHz/4)/8) // the clock for the crt5027 is configurable rate; 36MHz xtal divided by 1*, 2, 3, 4, 5, 6, 7, or 8 (* because this is a 74s163 this setting probably means divide by 1; documentation at http://bitsavers.trailing-edge.com/pdf/xerox/notetaker/memos/19790605_Definition_of_8086_Ports.pdf claims it is 1.5, which makes no sense) and secondarily divided by 8 (again by two to load the 16 bit output shifters after this)
// on reset, bitclk is 000 so divider is (36mhz/8)/8; during boot it is written with 101, changing the divider to (36mhz/4)/8
// TODO: for now, we just hack it to the latter setting from start; this should be handled correctly in ip_reset();
@ -697,7 +713,10 @@ static MACHINE_CONFIG_START( notetakr, notetaker_state )
MCFG_DEVICE_ADD( "eiauart", AY31015, 0 ) // HD6402, == AY-3-1015D
MCFG_AY31015_RX_CLOCK(((XTAL_960kHz/10)/4)/5) // hard-wired through an mc14568b divider set to divide by 4, the result set to divide by 5; this resulting 4800hz signal being 300 baud (16 clocks per baud)
MCFG_AY31015_TX_CLOCK(((XTAL_960kHz/10)/4)/5) // hard-wired through an mc14568b divider set to divide by 4, the result set to divide by 5; this resulting 4800hz signal being 300 baud (16 clocks per baud)
/* Devices */
/* Floppy */
MCFG_FD1791_ADD("wd1791", (((XTAL_24MHz/3)/2)/2)) // 2mhz, from 24mhz ip clock divided by 6 via 8284, an additional 2 by LS161 at #e1 on display/floppy board
MCFG_FLOPPY_DRIVE_ADD("wd1791:0", notetaker_floppies, "525dd", floppy_image_device::default_floppy_formats)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono") // TODO: should be stereo