From 73f372e55df923827a22b37fbeadd0b457f2e3fe Mon Sep 17 00:00:00 2001 From: Curt Coder Date: Sun, 5 May 2019 15:56:44 +0300 Subject: abc80: Added skeleton for Owoco Super Smartaid. [Curt Coder, Anders Sandahl] --- src/devices/bus/abcbus/abcbus.cpp | 18 ++-- src/devices/bus/abcbus/ssa.cpp | 189 ++++++++++++++++++++++++++++++++++++++ src/devices/bus/abcbus/ssa.h | 73 +++++++++++++++ 3 files changed, 272 insertions(+), 8 deletions(-) create mode 100644 src/devices/bus/abcbus/ssa.cpp create mode 100644 src/devices/bus/abcbus/ssa.h (limited to 'src/devices/bus/abcbus') diff --git a/src/devices/bus/abcbus/abcbus.cpp b/src/devices/bus/abcbus/abcbus.cpp index f1a06f343e1..e34f51ac729 100644 --- a/src/devices/bus/abcbus/abcbus.cpp +++ b/src/devices/bus/abcbus/abcbus.cpp @@ -27,8 +27,8 @@ DEFINE_DEVICE_TYPE(ABCBUS_SLOT, abcbus_slot_device, "abcbus_slot", "ABCBUS slot" // device_abcbus_card_interface - constructor //------------------------------------------------- -device_abcbus_card_interface::device_abcbus_card_interface(const machine_config &mconfig, device_t &device) - : device_slot_card_interface(mconfig, device) +device_abcbus_card_interface::device_abcbus_card_interface(const machine_config &mconfig, device_t &device) : + device_slot_card_interface(mconfig, device) { m_slot = dynamic_cast(device.owner()); } @@ -92,6 +92,7 @@ void abcbus_slot_device::device_start() #include "ram.h" #include "sio.h" #include "slutprov.h" +#include "ssa.h" #include "uni800.h" #include "unidisk.h" @@ -103,15 +104,16 @@ void abcbus_slot_device::device_start() void abc80_cards(device_slot_interface &device) { - device.option_add("fd2", ABC_FD2); - device.option_add("memcard", ABC_MEMORY_CARD); - device.option_add("abcexp", ABC_EXPANSION_UNIT); device.option_add("16k", ABC80_16KB_RAM_CARD); - device.option_add("slow", LUXOR_55_10828); device.option_add("abc830", ABC830); + device.option_add("abcexp", ABC_EXPANSION_UNIT); + device.option_add("cadabc", ABC_CADMOUSE); device.option_add("db411223", DATABOARD_4112_23); + device.option_add("fd2", ABC_FD2); + device.option_add("memcard", ABC_MEMORY_CARD); + device.option_add("slow", LUXOR_55_10828); + device.option_add("ssa", SUPER_SMARTAID); device.option_add("unidisk", UNIDISK); - device.option_add("cadabc", ABC_CADMOUSE); } @@ -135,9 +137,9 @@ void abcbus_cards(device_slot_interface &device) device.option_add("hdc", ABC_HDC); device.option_add("sio", ABC_SIO); device.option_add("slow", LUXOR_55_10828); + device.option_add("slutprov", ABC_SLUTPROV); device.option_add("uni800", ABC_UNI800); device.option_add("unidisk", UNIDISK); - device.option_add("slutprov", ABC_SLUTPROV); device.option_add("xebec", LUXOR_55_21056); } diff --git a/src/devices/bus/abcbus/ssa.cpp b/src/devices/bus/abcbus/ssa.cpp new file mode 100644 index 00000000000..be742828eeb --- /dev/null +++ b/src/devices/bus/abcbus/ssa.cpp @@ -0,0 +1,189 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Luxor ABC-80 Owoco Super Smartaid cartridge emulation + + New BASIC commands: + + AUTO, CHANGE, CLEAR, CONT, DEL, DIR, DISP, ED, EX, FIND, + FOR-NEXT, HELP, JOB, KEY, LIB, LIST, NEW, OLD, PEEK, PEW, POW, + REN, RESUME, SPOOL, STACK, START, SYS, TAB, TIME/NOTIME, TRACE, + VAR, Û (LIST) + + 0x4000-0x4fff = 4KB ROM bank + 0x5000-0x57ff = 2KB NVRAM + 0x7800-0x7bff = 1KB ROM bank + +*********************************************************************/ + +/* + + TODO: + + - banking + +*/ + +#include "emu.h" +#include "ssa.h" + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE(SUPER_SMARTAID, super_smartaid_t, "ssa", "Super Smartaid") + + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +void super_smartaid_t::device_add_mconfig(machine_config &config) +{ + ABCBUS_SLOT(config, ABCBUS_TAG, DERIVED_CLOCK(1, 1), abc80_cards, nullptr); +} + + +//------------------------------------------------- +// ROM( super_smartaid ) +//------------------------------------------------- + +ROM_START( super_smartaid ) + ROM_REGION( 0x800, "ssa1", 0 ) + ROM_LOAD( "ssa1.bin", 0x000, 0x800, CRC(4c015aba) SHA1(d83d50fb3da04d6cfed7a0ab595afbbef2812951) ) + + ROM_REGION( 0x2000, "ssa2", 0 ) + ROM_LOAD( "ssa2.bin", 0x0000, 0x2000, CRC(8e8bbd2a) SHA1(ff745e346ead247ebcc622bdd811e5f7de629639) ) + + ROM_REGION( 0x200, "ssa3", 0 ) + ROM_LOAD( "ssa3.bin", 0x000, 0x200, CRC(9671e00b) SHA1(9010cb3426bc61711ae940551b79b6ecba67defa) ) +ROM_END + + +//------------------------------------------------- +// rom_region - device-specific ROM region +//------------------------------------------------- + +const tiny_rom_entry *super_smartaid_t::device_rom_region() const +{ + return ROM_NAME( super_smartaid ); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// super_smartaid_t - constructor +//------------------------------------------------- + +super_smartaid_t::super_smartaid_t(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : + device_t(mconfig, SUPER_SMARTAID, tag, owner, clock), + device_abcbus_card_interface(mconfig, *this), + device_nvram_interface(mconfig, *this), + m_bus(*this, ABCBUS_TAG), + m_rom_1(*this, "ssa1"), + m_rom_2(*this, "ssa2"), + m_prom(*this, "ssa3"), + m_nvram(*this, "nvram"), + m_rom_bank(0), + m_prom_bank(0) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void super_smartaid_t::device_start() +{ + // descramble ROMs + for (offs_t i = 0; i < 0x800; i++) + { + m_rom_1->base()[i] = bitswap<8>(m_rom_1->base()[i], 7, 4, 3, 0, 5, 2, 1, 6); + } + for (offs_t i = 0; i < 0x2000; i++) + { + m_rom_2->base()[i] = bitswap<8>(m_rom_2->base()[i], 2, 6, 1, 4, 3, 5, 7, 0); + } + + // allocate memory + m_nvram.allocate(0x800); + + // state saving + save_item(NAME(m_rom_bank)); + save_item(NAME(m_prom_bank)); +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void super_smartaid_t::device_reset() +{ + m_rom_bank = 0; + m_prom_bank = 0; +} + + + +//************************************************************************** +// ABC BUS INTERFACE +//************************************************************************** + +//------------------------------------------------- +// abcbus_xmemfl - +//------------------------------------------------- + +uint8_t super_smartaid_t::abcbus_xmemfl(offs_t offset) +{ + uint8_t data = 0xff; + + switch (m_prom->base()[offset >> 10]) + { + case 0x08: case 0x0c: case 0x0f: + data = m_rom_2->base()[(m_rom_bank << 12) | (offset & 0xfff)]; + break; + case 0x0d: + data = m_rom_1->base()[(m_rom_bank << 10) | (offset & 0x3ff)]; + break; + case 0x0e: + data = m_nvram[offset & 0x7ff]; + break; + default: + data = m_bus->xmemfl_r(offset); + break; + } + + return data; +} + + +//------------------------------------------------- +// abcbus_xmemw - +//------------------------------------------------- + +void super_smartaid_t::abcbus_xmemw(offs_t offset, uint8_t data) +{ + if ((offset & 0x4041) == 0x4040) + { + m_rom_bank = BIT(offset, 0); + } + + switch (m_prom->base()[offset >> 10]) + { + case 0x0e: + m_nvram[offset & 0x7ff] = data; + break; + default: + m_bus->xmemw_w(offset, data); + break; + } +} diff --git a/src/devices/bus/abcbus/ssa.h b/src/devices/bus/abcbus/ssa.h new file mode 100644 index 00000000000..d87dea32018 --- /dev/null +++ b/src/devices/bus/abcbus/ssa.h @@ -0,0 +1,73 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Luxor ABC-80 Owoco Super Smartaid cartridge emulation + +*********************************************************************/ + +#ifndef MAME_BUS_ABCBUS_SSA_H +#define MAME_BUS_ABCBUS_SSA_H + +#pragma once + +#include "abcbus.h" +#include "machine/nvram.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> super_smartaid_t + +class super_smartaid_t : public device_t, + public device_abcbus_card_interface, + public device_nvram_interface +{ +public: + // construction/destruction + super_smartaid_t(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + +protected: + // device-level overrides + virtual void device_start() override; + virtual void device_reset() override; + + // device_nvram_interface overrides + virtual void nvram_default() override { } + virtual void nvram_read(emu_file &file) override { if (m_nvram != nullptr) { file.read(m_nvram, m_nvram.bytes()); } } + virtual void nvram_write(emu_file &file) override { if (m_nvram != nullptr) { file.write(m_nvram, m_nvram.bytes()); } } + + // device_abcbus_interface overrides + virtual void abcbus_cs(uint8_t data) override { m_bus->write_cs(data); } + virtual uint8_t abcbus_inp() override { return m_bus->read_inp(); } + virtual void abcbus_out(uint8_t data) override { m_bus->write_out(data); } + virtual uint8_t abcbus_stat() override { return m_bus->read_stat(); } + virtual void abcbus_c1(uint8_t data) override { m_bus->write_c1(data); } + virtual void abcbus_c2(uint8_t data) override { m_bus->write_c2(data); } + virtual void abcbus_c3(uint8_t data) override { m_bus->write_c3(data); } + virtual void abcbus_c4(uint8_t data) override { m_bus->write_c4(data); } + virtual uint8_t abcbus_xmemfl(offs_t offset) override; + virtual void abcbus_xmemw(offs_t offset, uint8_t data) override; + +private: + required_device m_bus; + required_memory_region m_rom_1; + required_memory_region m_rom_2; + required_memory_region m_prom; + optional_shared_ptr m_nvram; + uint8_t m_rom_bank; + uint8_t m_prom_bank; +}; + + +// device type definition +DECLARE_DEVICE_TYPE(SUPER_SMARTAID, super_smartaid_t) + +#endif // MAME_BUS_ABCBUS_SSA_H -- cgit v1.2.3-70-g09d2