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(MESS) v6809 : added rtc

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This commit is contained in:
Robbbert 2013-12-15 06:49:43 +00:00
parent 098d8d7d18
commit 415e2cc8e9
1 changed files with 18 additions and 4 deletions
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22
src/mess/drivers/v6809.c
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@ -31,10 +31,9 @@ M modify memory (. to exit)
ToDo:
- Colours (a photo shows colours but the schematic doesn't
have any ram for colours).
- Colours (Looks like characters 0xc0-0xff produce coloured lores gfx).
- Connect the RTC.
- Connect the RTC interrupt pin (not supported currently)
- Find the missing character generator rom.
@ -55,6 +54,7 @@ ToDo:
#include "machine/6840ptm.h"
#include "video/mc6845.h"
#include "machine/6850acia.h"
#include "machine/mm58274c.h"
#include "machine/keyboard.h"
#include "sound/speaker.h"
#include "machine/wd_fdc.h"
@ -107,7 +107,7 @@ static ADDRESS_MAP_START(v6809_mem, AS_PROGRAM, 8, v6809_state)
AM_RANGE(0xf50c, 0xf50c) AM_MIRROR(0x36) AM_DEVREADWRITE("acia1", acia6850_device, status_read, control_write) // printer
AM_RANGE(0xf50d, 0xf50d) AM_MIRROR(0x36) AM_DEVREADWRITE("acia1", acia6850_device, data_read, data_write)
AM_RANGE(0xf600, 0xf603) AM_MIRROR(0x3c) AM_DEVREADWRITE("fdc", mb8876_t, read, write)
//AM_RANGE(0xf640, 0xf64f) AM_MIRROR(0x30) real time clock
AM_RANGE(0xf640, 0xf64f) AM_MIRROR(0x30) AM_DEVREADWRITE("rtc", mm58274c_device, read, write)
AM_RANGE(0xf680, 0xf683) AM_MIRROR(0x3c) AM_DEVREADWRITE("pia0", pia6821_device, read, write)
AM_RANGE(0xf6c8, 0xf6cf) AM_MIRROR(0x08) AM_DEVREADWRITE("ptm", ptm6840_device, read, write)
AM_RANGE(0xf6d0, 0xf6d3) AM_MIRROR(0x0c) AM_DEVREADWRITE("pia1", pia6821_device, read, write)
@ -272,6 +272,7 @@ WRITE8_MEMBER( v6809_state::pa_w )
}
// port A = drive select and 2 control lines ; port B = keyboard
// CB2 connects to the interrupt pin of the RTC (the rtc code doesn't support it)
static const pia6821_interface pia0_intf =
{
DEVCB_NULL, /* port A input */
@ -331,6 +332,18 @@ static SLOT_INTERFACE_START( v6809_floppies )
SLOT_INTERFACE( "525dd", FLOPPY_525_DD )
SLOT_INTERFACE_END
//-------------------------------------------------
// mm58274c_interface rtc_intf
//-------------------------------------------------
// this is all guess
static const mm58274c_interface rtc_intf =
{
0, /* mode 24*/
1 /* first day of week */
};
// *** Machine ****
static MACHINE_CONFIG_START( v6809, v6809_state )
@ -364,6 +377,7 @@ static MACHINE_CONFIG_START( v6809, v6809_state )
MCFG_PTM6840_ADD("ptm", mc6840_intf)
MCFG_ACIA6850_ADD("acia0", mc6850_intf)
MCFG_ACIA6850_ADD("acia1", mc6850_intf)
MCFG_MM58274C_ADD("rtc", rtc_intf)
MCFG_MB8876x_ADD("fdc", XTAL_16MHz / 16)
MCFG_FLOPPY_DRIVE_ADD("fdc:0", v6809_floppies, "525dd", floppy_image_device::default_floppy_formats)
MACHINE_CONFIG_END