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author wilbertpol <wilbertpol@users.noreply.github.com>2023-02-14 18:23:22 +0000
committer GitHub <noreply@github.com>2023-02-15 05:23:22 +1100
commitd8f70e6446ddc528c1af060ddcc2c822e6dbcf09 (patch)
tree5d4f4169724eef54cf1baa5799810602f55ed282 /src
parent17d3ebd429919047fa3c7821e38b1617bb375805 (diff)
bus/msx/cart/ram.cpp: Added RAM expansion cartridges. (#10888)
Diffstat (limited to 'src')
-rw-r--r--src/devices/bus/msx/cart/cartridge.cpp2
-rw-r--r--src/devices/bus/msx/cart/ram.cpp353
-rw-r--r--src/devices/bus/msx/cart/ram.h10
-rw-r--r--src/devices/bus/msx/slot/cartridge.h1
4 files changed, 366 insertions, 0 deletions
diff --git a/src/devices/bus/msx/cart/cartridge.cpp b/src/devices/bus/msx/cart/cartridge.cpp
index 9715e54e3f2..089740e0a8d 100644
--- a/src/devices/bus/msx/cart/cartridge.cpp
+++ b/src/devices/bus/msx/cart/cartridge.cpp
@@ -25,6 +25,7 @@
#include "msx_audio.h"
#include "msxdos2.h"
#include "nomapper.h"
+#include "ram.h"
#include "rtype.h"
#include "softcard.h"
#include "superloderunner.h"
@@ -37,6 +38,7 @@
void msx_cart(device_slot_interface &device)
{
msx_cart_disk_register_options(device);
+ msx_cart_ram_register_options(device);
device.option_add_internal("arc", MSX_CART_ARC);
device.option_add_internal("ascii8", MSX_CART_ASCII8);
device.option_add_internal("ascii8_sram", MSX_CART_ASCII8_SRAM);
diff --git a/src/devices/bus/msx/cart/ram.cpp b/src/devices/bus/msx/cart/ram.cpp
new file mode 100644
index 00000000000..3608376e94c
--- /dev/null
+++ b/src/devices/bus/msx/cart/ram.cpp
@@ -0,0 +1,353 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+#include "emu.h"
+#include "ram.h"
+
+#include "bus/msx/slot/cartridge.h"
+
+#include "bus/generic/slot.h"
+
+
+/*
+Emulation of memory expansions for the MSX system.
+
+Standard 16K RAM expansions:
+- Addcom ADMSM 301
+- Casio OR-216
+- General RJ-102
+- Hitachi MP-RA01H
+- Mitsubishi ML-16RAM
+- National CF-2131
+- Philips VU 0031
+- Sanyo MRP-16
+- Sony HBM-16
+- Toshiba HX-M250
+
+Standard 32K RAM expansions:
+- Addcom ADMSM 302
+- Pioneer PX-RA32
+- Yamaha URM-01
+
+Standard 48K RAM expansions:
+- Addcom ADMSM 303
+- Neos RM-48
+
+Standard 64K RAM expansions:
+- Casio OR-264
+- Philips VU 0034
+- Sanyo Memoire Ram 64Ko
+- Sanyo MRP-64
+- Sharp-Epcom HB-4100
+- Sony HBM-64
+- Spectravideo SVI-747
+- Toshiba HX-M251
+- Walther Miller WM 0587
+
+Not supported:
+- Fujitsu MB22451 - Fujitsu FM-X only, adds 16K memory and a printer port
+- Yamaha SRE-01 - 60pin 32K memory expansion
+- Yamaha SRM-01 - 60pin 32K memory expansion and slot expander
+
+
+
+256KB Memmory Mapper expansions
+- R. & J.Jansen Memory Mapper 256
+
+512KB Memory Mapper expansions
+- Green MSX WBM512
+- Hardware Partners TM 512KB
+- HSH RE-512 MM
+- Padial LPE-512KBSRAM-V3
+- R. & J.Jansen Memory Mapper 512
+- Sony HBM-512
+
+768KB Memory Mapper expansions
+- ASCII MEM-768
+
+1MB Memory Mapper expansions
+- 8bits4ever MEGA-MAPPER 1024KB
+- Digital KC MSX Memory Mapper 1024KB
+- Hardware Partners TM 1M
+- MK MSX Memory Mapper 1024KB
+- MSX Club Gouda Memory Mapper 1MB
+- Popolon MSX Memory Mapper
+
+2MB Memory Mapper expansions
+- 8bits4ever MEGA-MAPPER 2048KB
+- Digital KC MSX Memory Mapper 2048KB
+- MFP Extended Memory-2048K
+- MK MSX Memory Mapper 2048KB
+- MSX Club Gouda Memory Mapper 2MB
+
+4MB Memory Mapper expansions
+- 8bits4ever MEGA-MAPPER 4096KB
+- Digital KC MSX Memory Mapper 4096KB
+- MK MSX Memory Mapper 4096KB
+- MSX Club Gouda Memory Mapper 4MB
+- Padial LPE-4MB-V42KP
+- T.N.S. Addram
+- Tecnobytes Double RAM (MegaRam not supported)
+
+Not supported memory mappers:
+- 8bits4ever SD-512
+- RBSC Carnivore2
+- Classic PC 16MB Expansion Memory - 4 x 4MB memory mapper
+- GR8NET
+- MSX Cartridge Shop MegaFlashROM SCC+ SD
+- Padial LPE-4FMB-V8SKP - 4MB memory mapper + MegaRam mode
+- Playsonic - 4MB memory mapper, up to 16MB through extra register
+- Popolon Musical Memory Mapper - 1MB memory mapper + SN76489AN
+- Stichting CODE MCR-025 - 256KB memory mapper + RAM Disk + Printer buffer
+- Stichting CODE MCR-051 - 512KB memory mapper + RAM Disk + Printer buffer
+- Stichting CODE MCR-076 - 768KB memory mapper + RAM Disk + Printer buffer
+- Stichting CODE MCR-102 - 1MB memory mapper + RAM Disk + Printer buffer
+- Stichting CODE MCR-204 - 2MB memory mapper + RAM Disk + Printer buffer
+*/
+
+DECLARE_DEVICE_TYPE(MSX_CART_16K_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_32K_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_48K_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_64K_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_256K_MM_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_512K_MM_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_768K_MM_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_1024K_MM_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_2048K_MM_RAM, msx_cart_interface)
+DECLARE_DEVICE_TYPE(MSX_CART_4096K_MM_RAM, msx_cart_interface)
+
+void msx_cart_ram_register_options(device_slot_interface &device)
+{
+ device.option_add("ram16k", MSX_CART_16K_RAM);
+ device.option_add("ram32k", MSX_CART_32K_RAM);
+ device.option_add("ram48k", MSX_CART_48K_RAM);
+ device.option_add("ram64k", MSX_CART_64K_RAM);
+ device.option_add("mm256k", MSX_CART_256K_MM_RAM);
+ device.option_add("mm512k", MSX_CART_512K_MM_RAM);
+ device.option_add("mm768k", MSX_CART_768K_MM_RAM);
+ device.option_add("mm1024k", MSX_CART_1024K_MM_RAM);
+ device.option_add("mm2048k", MSX_CART_2048K_MM_RAM);
+ device.option_add("mm4096k", MSX_CART_4096K_MM_RAM);
+}
+
+namespace {
+
+class msx_cart_base_ram_device : public device_t, public msx_cart_interface
+{
+protected:
+ msx_cart_base_ram_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u32 ram_size)
+ : device_t(mconfig, type, tag, owner, clock)
+ , msx_cart_interface(mconfig, *this)
+ , m_ram_size(ram_size)
+ { }
+
+ virtual void device_start() override
+ {
+ m_ram = std::make_unique<u8[]>(m_ram_size);
+ save_pointer(NAME(m_ram), m_ram_size);
+ }
+
+ u8 *ram_data()
+ {
+ return m_ram.get();
+ }
+
+ u32 get_ram_size() const
+ {
+ return m_ram_size;
+ }
+
+private:
+ std::unique_ptr<u8[]> m_ram;
+ const u32 m_ram_size;
+};
+
+
+class msx_cart_16k_ram_device : public msx_cart_base_ram_device
+{
+public:
+ msx_cart_16k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_ram_device(mconfig, MSX_CART_16K_RAM, tag, owner, clock, 16 * 1024)
+ { }
+
+protected:
+ virtual void device_start() override
+ {
+ msx_cart_base_ram_device::device_start();
+ page(2)->install_ram(0x8000, 0xbfff, ram_data());
+ }
+};
+
+class msx_cart_32k_ram_device : public msx_cart_base_ram_device
+{
+public:
+ msx_cart_32k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_ram_device(mconfig, MSX_CART_32K_RAM, tag, owner, clock, 32 * 1024)
+ { }
+
+protected:
+ virtual void device_start() override
+ {
+ msx_cart_base_ram_device::device_start();
+ page(0)->install_ram(0x0000, 0x3fff, ram_data());
+ page(1)->install_ram(0x4000, 0x7fff, ram_data() + 0x4000);
+ }
+};
+
+class msx_cart_48k_ram_device : public msx_cart_base_ram_device
+{
+public:
+ msx_cart_48k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_ram_device(mconfig, MSX_CART_48K_RAM, tag, owner, clock, 48 * 1024)
+ { }
+
+protected:
+ virtual void device_start() override
+ {
+ msx_cart_base_ram_device::device_start();
+ page(0)->install_ram(0x0000, 0x3fff, ram_data());
+ page(1)->install_ram(0x4000, 0x7fff, ram_data() + 0x4000);
+ page(2)->install_ram(0x8000, 0xbfff, ram_data() + 0x8000);
+ }
+};
+
+class msx_cart_64k_ram_device : public msx_cart_base_ram_device
+{
+public:
+ msx_cart_64k_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_ram_device(mconfig, MSX_CART_64K_RAM, tag, owner, clock, 64 * 1024)
+ { }
+
+protected:
+ virtual void device_start() override
+ {
+ msx_cart_base_ram_device::device_start();
+ page(0)->install_ram(0x0000, 0x3fff, ram_data());
+ page(1)->install_ram(0x4000, 0x7fff, ram_data() + 0x4000);
+ page(2)->install_ram(0x8000, 0xbfff, ram_data() + 0x8000);
+ page(3)->install_ram(0xc000, 0xffff, ram_data() + 0xc000);
+ }
+};
+
+
+class msx_cart_base_mm_ram_device : public msx_cart_base_ram_device
+{
+protected:
+ msx_cart_base_mm_ram_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u32 ram_size)
+ : msx_cart_base_ram_device(mconfig, type, tag, owner, clock, ram_size)
+ , m_rambank(*this, "rambank%u", 0U)
+ , m_bank_mask(0)
+ { }
+
+ virtual void device_start() override;
+
+ template <int Bank> void bank_w(u8 data);
+
+private:
+ memory_bank_array_creator<4> m_rambank;
+ u8 m_bank_mask;
+};
+
+void msx_cart_base_mm_ram_device::device_start()
+{
+ msx_cart_base_ram_device::device_start();
+
+ m_bank_mask = device_generic_cart_interface::map_non_power_of_two(
+ unsigned(get_ram_size() / 0x4000),
+ [this] (unsigned entry, unsigned page)
+ {
+ for (int i = 0; i < 4; i++)
+ m_rambank[i]->configure_entry(entry, ram_data() + 0x4000 * page);
+ }
+ );
+
+ // The MSX system allows multiple devices to react to I/O, so we use taps.
+ io_space().install_write_tap(0xfc, 0xfc, "bank0", [this] (offs_t, u8& data, u8){ this->bank_w<0>(data); });
+ io_space().install_write_tap(0xfd, 0xfd, "bank1", [this] (offs_t, u8& data, u8){ this->bank_w<1>(data); });
+ io_space().install_write_tap(0xfe, 0xfe, "bank2", [this] (offs_t, u8& data, u8){ this->bank_w<2>(data); });
+ io_space().install_write_tap(0xff, 0xff, "bank3", [this] (offs_t, u8& data, u8){ this->bank_w<3>(data); });
+
+ // Not all memory mapper expansions allow reading of mapper registers.
+ io_space().install_read_tap(0xfc, 0xfc, "bank0", [this] (offs_t, u8& data, u8){ if (!machine().side_effects_disabled()) data = ~m_bank_mask | m_rambank[0]->entry(); });
+ io_space().install_read_tap(0xfd, 0xfd, "bank1", [this] (offs_t, u8& data, u8){ if (!machine().side_effects_disabled()) data = ~m_bank_mask | m_rambank[1]->entry(); });
+ io_space().install_read_tap(0xfe, 0xfe, "bank2", [this] (offs_t, u8& data, u8){ if (!machine().side_effects_disabled()) data = ~m_bank_mask | m_rambank[2]->entry(); });
+ io_space().install_read_tap(0xff, 0xff, "bank3", [this] (offs_t, u8& data, u8){ if (!machine().side_effects_disabled()) data = ~m_bank_mask | m_rambank[3]->entry(); });
+
+ page(0)->install_readwrite_bank(0x0000, 0x3fff, m_rambank[0]);
+ page(1)->install_readwrite_bank(0x4000, 0x7fff, m_rambank[1]);
+ page(2)->install_readwrite_bank(0x8000, 0xbfff, m_rambank[2]);
+ page(3)->install_readwrite_bank(0xc000, 0xffff, m_rambank[3]);
+
+ m_rambank[0]->set_entry(3);
+ m_rambank[1]->set_entry(2);
+ m_rambank[2]->set_entry(1);
+ m_rambank[3]->set_entry(0);
+}
+
+template <int Bank>
+void msx_cart_base_mm_ram_device::bank_w(u8 data)
+{
+ m_rambank[Bank]->set_entry(data & m_bank_mask);
+}
+
+
+class msx_cart_256k_mm_ram_device : public msx_cart_base_mm_ram_device
+{
+public:
+ msx_cart_256k_mm_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_mm_ram_device(mconfig, MSX_CART_256K_MM_RAM, tag, owner, clock, 256 * 1024)
+ { }
+};
+
+class msx_cart_512k_mm_ram_device : public msx_cart_base_mm_ram_device
+{
+public:
+ msx_cart_512k_mm_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_mm_ram_device(mconfig, MSX_CART_512K_MM_RAM, tag, owner, clock, 512 * 1024)
+ { }
+};
+
+class msx_cart_768k_mm_ram_device : public msx_cart_base_mm_ram_device
+{
+public:
+ msx_cart_768k_mm_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_mm_ram_device(mconfig, MSX_CART_768K_MM_RAM, tag, owner, clock, 768 * 1024)
+ { }
+};
+
+class msx_cart_1024k_mm_ram_device : public msx_cart_base_mm_ram_device
+{
+public:
+ msx_cart_1024k_mm_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_mm_ram_device(mconfig, MSX_CART_1024K_MM_RAM, tag, owner, clock, 1024 * 1024)
+ { }
+};
+
+class msx_cart_2048k_mm_ram_device : public msx_cart_base_mm_ram_device
+{
+public:
+ msx_cart_2048k_mm_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_mm_ram_device(mconfig, MSX_CART_2048K_MM_RAM, tag, owner, clock, 2048 * 1024)
+ { }
+};
+
+class msx_cart_4096k_mm_ram_device : public msx_cart_base_mm_ram_device
+{
+public:
+ msx_cart_4096k_mm_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : msx_cart_base_mm_ram_device(mconfig, MSX_CART_4096K_MM_RAM, tag, owner, clock, 4096 * 1024)
+ { }
+};
+
+} // anonymous namespace
+
+
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_16K_RAM, msx_cart_interface, msx_cart_16k_ram_device, "msx_cart_16k_ram", "Generic MSX 16K RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_32K_RAM, msx_cart_interface, msx_cart_32k_ram_device, "msx_cart_32k_ram", "Generic MSX 32K RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_48K_RAM, msx_cart_interface, msx_cart_48k_ram_device, "msx_cart_48k_ram", "Generic MSX 48K RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_64K_RAM, msx_cart_interface, msx_cart_64k_ram_device, "msx_cart_64k_ram", "Generic MSX 64K RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_256K_MM_RAM, msx_cart_interface, msx_cart_256k_mm_ram_device, "msx_cart_256k_mm_ram", "Generic MSX 256K MM RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_512K_MM_RAM, msx_cart_interface, msx_cart_512k_mm_ram_device, "msx_cart_512k_mm_ram", "Generic MSX 512K MM RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_768K_MM_RAM, msx_cart_interface, msx_cart_768k_mm_ram_device, "msx_cart_768k_mm_ram", "Generic MSX 768K MM RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_1024K_MM_RAM, msx_cart_interface, msx_cart_1024k_mm_ram_device, "msx_cart_1024k_mm_ram", "Generic MSX 1024K MM RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_2048K_MM_RAM, msx_cart_interface, msx_cart_2048k_mm_ram_device, "msx_cart_2048k_mm_ram", "Generic MSX 2048K MM RAM Expansion")
+DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_4096K_MM_RAM, msx_cart_interface, msx_cart_4096k_mm_ram_device, "msx_cart_4096k_mm_ram", "Generic MSX 4096K MM RAM Expansion")
diff --git a/src/devices/bus/msx/cart/ram.h b/src/devices/bus/msx/cart/ram.h
new file mode 100644
index 00000000000..e23d950a720
--- /dev/null
+++ b/src/devices/bus/msx/cart/ram.h
@@ -0,0 +1,10 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+#ifndef MAME_BUS_MSX_CART_RAM_H
+#define MAME_BUS_MSX_CART_RAM_H
+
+#pragma once
+
+void msx_cart_ram_register_options(device_slot_interface &device);
+
+#endif // MAME_BUS_MSX_CART_RAM_H
diff --git a/src/devices/bus/msx/slot/cartridge.h b/src/devices/bus/msx/slot/cartridge.h
index aef5fbdfe1f..50c97aca3d2 100644
--- a/src/devices/bus/msx/slot/cartridge.h
+++ b/src/devices/bus/msx/slot/cartridge.h
@@ -6,6 +6,7 @@
#pragma once
#include "slot.h"
+#include "bus/generic/slot.h"
#include "bus/msx/cart/cartridge.h"
#include "imagedev/cartrom.h"