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(MESS) victor9k: Floppy WIP. (nw)

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This commit is contained in:
Curt Coder 2014-11-02 13:06:25 +02:00
parent 487526c990
commit 9f107c0d7f
5 changed files with 165 additions and 32 deletions
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103
src/lib/formats/victor9k_dsk.c Normal file
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@ -0,0 +1,103 @@
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*********************************************************************
formats/victor9k_dsk.c
Victor 9000 sector disk image format
*********************************************************************/
/*
Sector format
-------------
Header sync
Sector header (header ID, track ID, sector ID, and checksum)
Gap 1
Data Sync
Data field (data sync, data ID, data bytes, and checksum)
Gap 2
Track format
------------
ZONE LOWER HEAD UPPER HEAD SECTORS ROTATIONAL
NUMBER TRACKS TRACKS PER TRACK PERIOD (MS)
0 0-3 unused 19 237.9
1 4-15 0-7 18 224.5
2 16-26 8-18 17 212.2
3 27-37 19-29 16 199.9
4 38-48 30-40 15 187.6
5 49-59 41-51 14 175.3
6 60-70 52-62 13 163.0
7 71-79 63-74 12 149.6
8 unused 75-79 11 144.0
*/
#include "emu.h"
#include "formats/victor9k_dsk.h"
victor9k_format::victor9k_format()
{
}
const char *victor9k_format::name() const
{
return "victor9k";
}
const char *victor9k_format::description() const
{
return "Victor 9000 disk image";
}
const char *victor9k_format::extensions() const
{
return "img";
}
int victor9k_format::identify(io_generic *io, UINT32 form_factor)
{
return 0;
}
bool victor9k_format::load(io_generic *io, UINT32 form_factor, floppy_image *image)
{
return false;
}
bool victor9k_format::supports_save() const
{
return false;
}
const victor9k_format::format victor9k_format::formats[] = {
{ //
floppy_image::FF_525, floppy_image::SSDD, 80, 1, 256
},
{ //
floppy_image::FF_525, floppy_image::DSDD, 80, 2, 256
},
{}
};
const UINT32 victor9k_format::cell_size[] =
{
0
};
const int victor9k_format::sectors_per_track[] =
{
0
};
const int victor9k_format::speed_zone[] =
{
0
};
const floppy_format_type FLOPPY_VICTOR_9000_FORMAT = &floppy_image_format_creator<victor9k_format>;

52
src/lib/formats/victor9k_dsk.h Normal file
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@ -0,0 +1,52 @@
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*********************************************************************
formats/victor9k_dsk.h
Victor 9000 sector disk image format
*********************************************************************/
#ifndef VICTOR9K_DSK_H_
#define VICTOR9K_DSK_H_
#include "flopimg.h"
class victor9k_format : public floppy_image_format_t {
public:
struct format {
UINT32 form_factor; // See floppy_image for possible values
UINT32 variant; // See floppy_image for possible values
UINT8 track_count;
UINT8 head_count;
UINT16 sector_base_size;
};
victor9k_format();
virtual const char *name() const;
virtual const char *description() const;
virtual const char *extensions() const;
virtual int identify(io_generic *io, UINT32 form_factor);
virtual bool load(io_generic *io, UINT32 form_factor, floppy_image *image);
virtual bool supports_save() const;
protected:
static const format formats[];
static const UINT32 cell_size[];
static const int sectors_per_track[];
static const int speed_zone[];
};
extern const floppy_format_type FLOPPY_VICTOR_9000_FORMAT;
FLOPPY_IDENTIFY( victor9k_dsk_identify );
FLOPPY_CONSTRUCT( victor9k_dsk_construct );
#endif

1
src/lib/lib.mak
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@ -215,6 +215,7 @@ FORMATSOBJS = \
$(LIBOBJ)/formats/tzx_cas.o \
$(LIBOBJ)/formats/uef_cas.o \
$(LIBOBJ)/formats/upd765_dsk.o \
$(LIBOBJ)/formats/victor9k_dsk.o\
$(LIBOBJ)/formats/vg5k_cas.o \
$(LIBOBJ)/formats/vt_cas.o \
$(LIBOBJ)/formats/vt_dsk.o \

38
src/mess/drivers/victor9k.c
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@ -9,36 +9,6 @@
**********************************************************************/
/*
Sector format
-------------
Header sync
Sector header (header ID, track ID, sector ID, and checksum)
Gap 1
Data Sync
Data field (data sync, data ID, data bytes, and checksum)
Gap 2
Track format
------------
ZONE LOWER HEAD UPPER HEAD SECTORS ROTATIONAL
NUMBER TRACKS TRACKS PER TRACK PERIOD (MS)
0 0-3 unused 19 237.9
1 4-15 0-7 18 224.5
2 16-26 8-18 17 212.2
3 27-37 19-29 16 199.9
4 38-48 30-40 15 187.6
5 49-59 41-51 14 175.3
6 60-70 52-62 13 163.0
7 71-79 63-74 12 149.6
8 unused 75-79 11 144.0
*/
/*
TODO:
@ -837,6 +807,10 @@ static SLOT_INTERFACE_START( victor9k_floppies )
SLOT_INTERFACE( "525qd", FLOPPY_525_QD )
SLOT_INTERFACE_END
FLOPPY_FORMATS_MEMBER( victor9k_state::floppy_formats )
FLOPPY_VICTOR_9000_FORMAT
FLOPPY_FORMATS_END
//**************************************************************************
// MACHINE INITIALIZATION
@ -972,8 +946,8 @@ static MACHINE_CONFIG_START( victor9k, victor9k_state )
MCFG_VIA6522_CB2_HANDLER(WRITELINE(victor9k_state, erase_w))
MCFG_VIA6522_IRQ_HANDLER(WRITELINE(victor9k_state, via6_irq_w))
MCFG_FLOPPY_DRIVE_ADD(I8048_TAG":0", victor9k_floppies, "525qd", floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(I8048_TAG":1", victor9k_floppies, "525qd", floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(I8048_TAG":0", victor9k_floppies, "525qd", victor9k_state::floppy_formats)
MCFG_FLOPPY_DRIVE_ADD(I8048_TAG":1", victor9k_floppies, "525qd", victor9k_state::floppy_formats)
MCFG_RS232_PORT_ADD(RS232_A_TAG, default_rs232_devices, NULL)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE(UPD7201_TAG, z80dart_device, rxa_w))

3
src/mess/includes/victor9k.h
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@ -17,6 +17,7 @@
#include "bus/rs232/rs232.h"
#include "cpu/i86/i86.h"
#include "cpu/mcs48/mcs48.h"
#include "formats/victor9k_dsk.h"
#include "imagedev/floppy.h"
#include "machine/ram.h"
#include "bus/centronics/ctronics.h"
@ -164,6 +165,8 @@ public:
DECLARE_WRITE_LINE_MEMBER( ssda_irq_w );
MC6845_UPDATE_ROW( crtc_update_row );
DECLARE_FLOPPY_FORMATS( floppy_formats );
void ready0_cb(floppy_image_device *, int device);
int load0_cb(floppy_image_device *device);
void unload0_cb(floppy_image_device *device);