mirror of
https://github.com/holub/mame
synced 2025-06-07 21:33:45 +03:00
fmtowns: add support for IC Memory Card images. Limited to 16MB in size for now, until I can find software that supports more.
This commit is contained in:
mahlemiut
parent
cb23c81933
commit
0d13c7115e
@ -1894,6 +1894,8 @@ files {
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MAME_DIR .. "src/mame/video/fmtowns.cpp",
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MAME_DIR .. "src/mame/machine/fm_scsi.cpp",
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MAME_DIR .. "src/mame/machine/fm_scsi.h",
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MAME_DIR .. "src/mame/machine/fmt_icmem.cpp",
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MAME_DIR .. "src/mame/machine/fmt_icmem.h",
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MAME_DIR .. "src/mame/drivers/fm7.cpp",
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MAME_DIR .. "src/mame/includes/fm7.h",
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MAME_DIR .. "src/mame/video/fm7.cpp",
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@ -181,6 +181,7 @@ Notes:
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#include "bus/scsi/scsihd.h"
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#include "softlist.h"
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// CD controller IRQ types
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#define TOWNS_CD_IRQ_MPU 1
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#define TOWNS_CD_IRQ_DMA 2
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@ -2143,8 +2144,8 @@ static ADDRESS_MAP_START(towns_mem, AS_PROGRAM, 32, towns_state)
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// AM_RANGE(0x00100000, 0x005fffff) AM_RAM // some extra RAM
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AM_RANGE(0x80000000, 0x8007ffff) AM_READWRITE8(towns_gfx_high_r,towns_gfx_high_w,0xffffffff) AM_MIRROR(0x180000) // VRAM
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AM_RANGE(0x81000000, 0x8101ffff) AM_READWRITE8(towns_spriteram_r,towns_spriteram_w,0xffffffff) // Sprite RAM
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// 0xc0000000 - 0xc0ffffff // IC Memory Card (static, first 16MB only)
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// 0xc1000000 - 0xc1ffffff // IC Memory Card (banked, can show any of 4 banks), JEIDA v4 only (UX and later)
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AM_RANGE(0xc0000000, 0xc0ffffff) AM_DEVREADWRITE8("icmemcard", fmt_icmem_device, static_mem_read, static_mem_write, 0xffffffff)
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AM_RANGE(0xc1000000, 0xc1ffffff) AM_DEVREADWRITE8("icmemcard", fmt_icmem_device, mem_read, mem_write, 0xffffffff)
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AM_RANGE(0xc2000000, 0xc207ffff) AM_ROM AM_REGION("user",0x000000) // OS ROM
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AM_RANGE(0xc2080000, 0xc20fffff) AM_ROM AM_REGION("user",0x100000) // DIC ROM
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AM_RANGE(0xc2100000, 0xc213ffff) AM_ROM AM_REGION("user",0x180000) // FONT ROM
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@ -2172,7 +2173,7 @@ static ADDRESS_MAP_START(marty_mem, AS_PROGRAM, 16, towns_state)
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AM_RANGE(0x00a00000, 0x00a7ffff) AM_READWRITE8(towns_gfx_high_r,towns_gfx_high_w,0xffff) AM_MIRROR(0x180000) // VRAM
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AM_RANGE(0x00b00000, 0x00b7ffff) AM_ROM AM_REGION("user",0x180000) // FONT
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AM_RANGE(0x00c00000, 0x00c1ffff) AM_READWRITE8(towns_spriteram_r,towns_spriteram_w,0xffff) // Sprite RAM
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AM_RANGE(0x00d00000, 0x00dfffff) AM_RAM // IC Memory Card (is this usable on the Marty?)
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AM_RANGE(0x00d00000, 0x00dfffff) AM_DEVREADWRITE8("icmemcard", fmt_icmem_device, mem_read, mem_write, 0xffff)
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AM_RANGE(0x00e80000, 0x00efffff) AM_ROM AM_REGION("user",0x100000) // DIC ROM
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AM_RANGE(0x00f00000, 0x00f7ffff) AM_ROM AM_REGION("user",0x180000) // FONT
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AM_RANGE(0x00f80000, 0x00f8ffff) AM_DEVREADWRITE8("pcm", rf5c68_device, rf5c68_mem_r, rf5c68_mem_w, 0xffff) // WAVE RAM
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@ -2195,7 +2196,7 @@ static ADDRESS_MAP_START(ux_mem, AS_PROGRAM, 16, towns_state)
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AM_RANGE(0x00a00000, 0x00a7ffff) AM_READWRITE8(towns_gfx_high_r,towns_gfx_high_w,0xffff) AM_MIRROR(0x180000) // VRAM
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AM_RANGE(0x00b00000, 0x00b7ffff) AM_ROM AM_REGION("user",0x180000) // FONT
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AM_RANGE(0x00c00000, 0x00c1ffff) AM_READWRITE8(towns_spriteram_r,towns_spriteram_w,0xffff) // Sprite RAM
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AM_RANGE(0x00d00000, 0x00dfffff) AM_RAM // IC Memory Card
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AM_RANGE(0x00d00000, 0x00dfffff) AM_DEVREADWRITE8("icmemcard", fmt_icmem_device, mem_read, mem_write, 0xffff)
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AM_RANGE(0x00e00000, 0x00e7ffff) AM_ROM AM_REGION("user",0x000000) // OS
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AM_RANGE(0x00e80000, 0x00efffff) AM_ROM AM_REGION("user",0x100000) // DIC ROM
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AM_RANGE(0x00f00000, 0x00f7ffff) AM_ROM AM_REGION("user",0x180000) // FONT
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@ -2229,6 +2230,9 @@ static ADDRESS_MAP_START( towns_io , AS_IO, 32, towns_state)
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AM_RANGE(0x0440,0x045f) AM_READWRITE8(towns_video_440_r, towns_video_440_w, 0xffffffff)
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// System port
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AM_RANGE(0x0480,0x0483) AM_READWRITE8(towns_sys480_r,towns_sys480_w,0x000000ff) // R/W (0x480)
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// IC Memory Card
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AM_RANGE(0x0488,0x048b) AM_DEVREAD8("icmemcard",fmt_icmem_device,status_r,0x00ff0000)
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AM_RANGE(0x0490,0x0493) AM_DEVREADWRITE8("icmemcard",fmt_icmem_device,bank_r,bank_w,0x0000ffff)
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// CD-ROM
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AM_RANGE(0x04c0,0x04cf) AM_READWRITE8(towns_cdrom_r,towns_cdrom_w,0x00ff00ff)
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// Joystick / Mouse ports
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@ -2281,6 +2285,9 @@ static ADDRESS_MAP_START( towns16_io , AS_IO, 16, towns_state) // for the 386SX
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AM_RANGE(0x0440,0x045f) AM_READWRITE8(towns_video_440_r, towns_video_440_w, 0xffff)
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// System port
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AM_RANGE(0x0480,0x0481) AM_READWRITE8(towns_sys480_r,towns_sys480_w,0x00ff) // R/W (0x480)
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// IC Memory Card
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AM_RANGE(0x048a,0x048b) AM_DEVREAD8("icmemcard",fmt_icmem_device,status_r,0x00ff)
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AM_RANGE(0x0490,0x0491) AM_DEVREADWRITE8("icmemcard",fmt_icmem_device,bank_r,bank_w,0xffff)
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// CD-ROM
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AM_RANGE(0x04c0,0x04cf) AM_READWRITE8(towns_cdrom_r,towns_cdrom_w,0x00ff)
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// Joystick / Mouse ports
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@ -2322,7 +2329,7 @@ static INPUT_PORTS_START( towns )
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PORT_CONFSETTING(0x20, "Mouse")
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PORT_CONFSETTING(0x40, "6-button joystick")
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// Keyboard
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// Keyboard
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PORT_START( "key1" ) // scancodes 0x00-0x1f
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PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_UNUSED)
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PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(27)
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@ -2768,6 +2775,8 @@ static MACHINE_CONFIG_FRAGMENT( towns_base )
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//MCFG_VIDEO_START_OVERRIDE(towns_state,towns)
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MCFG_FMT_ICMEMCARD_ADD("icmemcard")
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/* internal ram */
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MCFG_RAM_ADD(RAM_TAG)
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MCFG_RAM_DEFAULT_SIZE("6M")
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@ -20,6 +20,9 @@
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#include "machine/ram.h"
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#include "machine/nvram.h"
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#include "machine/fm_scsi.h"
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#include "bus/generic/slot.h"
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#include "bus/generic/carts.h"
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#include "machine/fmt_icmem.h"
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#define IRQ_LOG 0 // set to 1 to log IRQ line activity
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@ -92,6 +95,7 @@ class towns_state : public driver_device
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m_fdc(*this, "fdc"),
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m_flop0(*this, "fdc:0"),
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m_flop1(*this, "fdc:1"),
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m_icmemcard(*this, "icmemcard"),
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m_nvram(*this, "nvram"),
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m_nvram16(*this, "nvram16"),
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m_ctrltype(*this, "ctrltype"),
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@ -124,6 +128,7 @@ class towns_state : public driver_device
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required_device<mb8877_t> m_fdc;
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required_device<floppy_connector> m_flop0;
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required_device<floppy_connector> m_flop1;
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required_device<fmt_icmem_device> m_icmemcard;
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ram_device* m_messram;
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cdrom_image_device* m_cdrom;
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cdda_device* m_cdda;
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184
src/mame/machine/fmt_icmem.cpp
Normal file
184
src/mame/machine/fmt_icmem.cpp
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@ -0,0 +1,184 @@
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// license:BSD-3-Clause
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// copyright-holders:Barry Rodewald
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/*********************************************************************
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fmt_icmem.cpp
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FM Towns IC Memory Card
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PCMCIA SRAM Memory Cards, up to 64MB supported
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*********************************************************************/
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#include "emu.h"
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#include "emuopts.h"
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#include "fmt_icmem.h"
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// device type definition
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const device_type FMT_ICMEM = &device_creator<fmt_icmem_device>;
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//-------------------------------------------------
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// fmt_icmem_device - constructor
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//-------------------------------------------------
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fmt_icmem_device::fmt_icmem_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, FMT_ICMEM, "FM Towns IC Memory Card", tag, owner, clock, "fmt_icmem", __FILE__),
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device_image_interface(mconfig, *this),
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m_writeprotect(*this,"icmem"),
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m_change(false),
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m_attr_select(false),
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m_detect(false),
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m_bank(0)
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{
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}
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static INPUT_PORTS_START( fmt_icmem )
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PORT_START("icmem")
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PORT_CONFNAME(0x01, 0x00, "IC Memory Card Write Protect")
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PORT_CONFSETTING(0x00, DEF_STR( Off ))
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PORT_CONFSETTING(0x01, DEF_STR( On ))
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INPUT_PORTS_END
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//-------------------------------------------------
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// device_config_complete - perform any
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// operations now that the configuration is
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// complete
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//-------------------------------------------------
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void fmt_icmem_device::device_config_complete()
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{
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// set brief and instance name
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update_names();
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void fmt_icmem_device::device_start()
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{
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m_memcard_ram = std::make_unique<uint8_t[]>(0x1000000);
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m_bank = 0;
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m_detect = false;
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m_change = false;
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save_item(NAME(m_change));
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save_item(NAME(m_detect));
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save_item(NAME(m_bank));
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}
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ioport_constructor fmt_icmem_device::device_input_ports() const
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{
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return INPUT_PORTS_NAME(fmt_icmem);
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}
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image_init_result fmt_icmem_device::call_load()
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{
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memset(m_memcard_ram.get(), 0xff, 0x1000000);
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fseek(0, SEEK_SET);
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size_t ret = fread(m_memcard_ram.get(), 0x1000000);
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if(ret != length())
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return image_init_result::FAIL;
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m_change = true;
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m_detect = true;
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return image_init_result::PASS;
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}
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void fmt_icmem_device::call_unload()
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{
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fseek(0, SEEK_SET);
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if(!m_writeprotect->read())
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fwrite(m_memcard_ram.get(), 0x1000000);
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m_change = true;
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m_detect = false;
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}
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image_init_result fmt_icmem_device::call_create(int format_type, util::option_resolution *format_options)
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{
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memset(m_memcard_ram.get(), 0xff, 0x1000000);
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size_t ret = fwrite(m_memcard_ram.get(), 0x1000000);
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if(ret != 0x1000000)
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return image_init_result::FAIL;
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m_change = true;
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m_detect = true;
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return image_init_result::PASS;
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}
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READ8_MEMBER(fmt_icmem_device::static_mem_read)
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{
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return m_memcard_ram[offset];
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}
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WRITE8_MEMBER(fmt_icmem_device::static_mem_write)
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{
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m_memcard_ram[offset] = data;
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}
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READ8_MEMBER(fmt_icmem_device::mem_read)
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{
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return m_memcard_ram[(m_bank*0x100000) + offset];
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}
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WRITE8_MEMBER(fmt_icmem_device::mem_write)
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{
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m_memcard_ram[(m_bank*0x100000) + offset] = data;
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}
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// Memory Card status:
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// bit 0 - 0 = Write Enable, 1 = Write Protect
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// bit 1,2 - Card Detect - 00 = Card Inserted, 11 = No card inserted, 10 or 01 = Card error?
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// bit 3,4,5 - not memory card related (EEPROM and backup battery level)
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// bit 6 - unknown
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// bit 7 - 1 = card changed, flips back to 0 when read
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READ8_MEMBER(fmt_icmem_device::status_r)
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{
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uint8_t ret = 0x00;
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ret |= (m_writeprotect->read() & 0x01);
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if(is_readonly()) // if image is read-only, then set write protect.
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ret |= 0x01;
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if(!m_detect)
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ret |= 0x06;
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if(m_change)
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ret |= 0x80;
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m_change = false;
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return ret;
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}
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// Memory Card bank select (0x490)
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// bit 0-5: bank select (bits 0-3 not used in non-386SX systems?)
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// Attribute/Common memory select (0x491)
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// bit 0: 0 = common memory, 1 = attribute memory (TODO)
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// bit 7: 0 indicates that card is JEIDA v4 compliant
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READ8_MEMBER(fmt_icmem_device::bank_r)
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{
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switch(offset)
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{
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case 0:
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return m_bank & 0x0f;
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case 1:
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return m_attr_select ? 1 : 0;
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}
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return 0xff;
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}
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WRITE8_MEMBER(fmt_icmem_device::bank_w)
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{
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switch(offset)
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{
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case 0:
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m_bank = data & 0x0f;
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break;
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case 1:
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m_attr_select = data & 0x01;
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break;
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}
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}
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77
src/mame/machine/fmt_icmem.h
Normal file
77
src/mame/machine/fmt_icmem.h
Normal file
@ -0,0 +1,77 @@
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// license:BSD-3-Clause
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// copyright-holders:Barry Rodewald
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/*********************************************************************
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fmt_icmem.h
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FM Towns IC Memory Card
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*********************************************************************/
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#pragma once
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#ifndef __FMT_ICMEM_H__
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#define __FMT_ICMEM_H__
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//**************************************************************************
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// INTERFACE CONFIGURATION MACROS
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//**************************************************************************
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#define MCFG_FMT_ICMEMCARD_ADD(_tag) \
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MCFG_DEVICE_ADD(_tag, FMT_ICMEM, 0)
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/***************************************************************************
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FUNCTION PROTOTYPES
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***************************************************************************/
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class fmt_icmem_device : public device_t,
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public device_image_interface
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{
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public:
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// construction/destruction
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fmt_icmem_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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virtual iodevice_t image_type() const override { return IO_MEMCARD; }
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virtual bool is_readable() const override { return true; }
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virtual bool is_writeable() const override { return true; }
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virtual bool is_creatable() const override { return true; }
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virtual bool must_be_loaded() const override { return false; }
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virtual bool is_reset_on_load() const override { return false; }
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virtual const char *file_extensions() const override { return "icm"; }
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virtual image_init_result call_load() override;
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virtual void call_unload() override;
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virtual image_init_result call_create(int format_type, util::option_resolution *format_options) override;
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// device-level overrides
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virtual void device_start() override;
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virtual void device_config_complete() override;
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DECLARE_READ8_MEMBER(static_mem_read);
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DECLARE_WRITE8_MEMBER(static_mem_write);
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DECLARE_READ8_MEMBER(mem_read);
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DECLARE_WRITE8_MEMBER(mem_write);
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DECLARE_READ8_MEMBER(status_r);
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DECLARE_READ8_MEMBER(bank_r);
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DECLARE_WRITE8_MEMBER(bank_w);
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protected:
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virtual ioport_constructor device_input_ports() const override;
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private:
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required_ioport m_writeprotect;
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std::unique_ptr<uint8_t[]> m_memcard_ram;
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bool m_change;
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bool m_attr_select;
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uint8_t m_detect;
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uint8_t m_bank;
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};
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// device type definition
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extern const device_type FMT_ICMEM;
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#endif /* __FMT_ICMEM_H__ */
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