// license:BSD-3-Clause // copyright-holders:hap /****************************************************************************** Easi-Speech cartridge (R.Amy, 1987) It has a GI SP0256A-AL2 (no XTAL) The program adds a hook to 0xfd29, usage appears to be something like this: n%=(number 0-511):a=usr9(n%) or a=usr9(number) Or a custom string: a$="hello world":a$=usr9(a$) or a$=usr9("string") ******************************************************************************/ #include "emu.h" #include "easi_speech.h" #include "sound/sp0256.h" namespace { class msx_cart_easispeech_device : public device_t, public msx_cart_interface { public: msx_cart_easispeech_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : device_t(mconfig, MSX_CART_EASISPEECH, tag, owner, clock) , msx_cart_interface(mconfig, *this) , m_speech(*this, "speech") { } virtual std::error_condition initialize_cartridge(std::string &message) override; protected: // device_t implementation virtual void device_start() override { } virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD; private: u8 speech_r(); void speech_w(u8 data); required_device m_speech; }; ROM_START(msx_cart_easispeech) ROM_REGION(0x10000, "speech", 0) ROM_LOAD("sp0256a-al2", 0x1000, 0x0800, CRC(b504ac15) SHA1(e60fcb5fa16ff3f3b69d36c7a6e955744d3feafc) ) ROM_END const tiny_rom_entry *msx_cart_easispeech_device::device_rom_region() const { return ROM_NAME(msx_cart_easispeech); } void msx_cart_easispeech_device::device_add_mconfig(machine_config &config) { SP0256(config, m_speech, DERIVED_CLOCK(1, 1)); // appears to be connected to slot CLOCK pin if (parent_slot()) m_speech->add_route(ALL_OUTPUTS, soundin(), 1.0); } std::error_condition msx_cart_easispeech_device::initialize_cartridge(std::string &message) { if (!cart_rom_region()) { message = "msx_cart_easispeech_device: Required region 'rom' was not found."; return image_error::INTERNAL; } if (cart_rom_region()->bytes() != 0x2000) { message = "msx_cart_easispeech_device: Region 'rom' has unsupported size."; return image_error::INVALIDLENGTH; } page(1)->install_rom(0x4000, 0x5fff, 0x2000, cart_rom_region()->base()); page(2)->install_read_handler(0x8000, 0x8000, emu::rw_delegate(*this, FUNC(msx_cart_easispeech_device::speech_r))); page(2)->install_write_handler(0x8000, 0x8000, emu::rw_delegate(*this, FUNC(msx_cart_easispeech_device::speech_w))); return std::error_condition(); } u8 msx_cart_easispeech_device::speech_r() { return m_speech->lrq_r() << 7; } void msx_cart_easispeech_device::speech_w(u8 data) { m_speech->ald_w(bitswap<6>(data,3,5,7,6,4,2)); } } // anonymous namespace DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_EASISPEECH, msx_cart_interface, msx_cart_easispeech_device, "msx_cart_easispeech", "MSX Cartridge - Easi-Speech")