// license:BSD-3-Clause // copyright-holders:R. Belmont, Golden Child /********************************************************************* ssprite.cpp Implementation of the Synetix SuperSprite *********************************************************************/ #include "emu.h" #include "ssprite.h" #include "sound/ay8910.h" #include "sound/tms5220.h" #include "video/tms9928a.h" #include "speaker.h" namespace { /*************************************************************************** PARAMETERS ***************************************************************************/ #define TMS_TAG "ssprite_tms" #define TMS5220_TAG "ssprite_tms5220" #define AY_TAG "ssprite_ay" #define SCREEN_TAG "screen" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class a2bus_ssprite_device: public device_t, public device_a2bus_card_interface { public: // construction/destruction a2bus_ssprite_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: a2bus_ssprite_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; // overrides of standard a2bus slot functions virtual uint8_t read_c0nx(uint8_t offset) override; virtual void write_c0nx(uint8_t offset, uint8_t data) override; private: DECLARE_WRITE_LINE_MEMBER( tms_irq_w ); required_device m_tms; required_device m_ay; required_device m_tms5220; }; //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void a2bus_ssprite_device::device_add_mconfig(machine_config &config) { TMS9918A(config, m_tms, XTAL(10'738'635)).set_screen(SCREEN_TAG); m_tms->set_vram_size(0x4000); // 16k of VRAM m_tms->int_callback().set(FUNC(a2bus_ssprite_device::tms_irq_w)); SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER); SPEAKER(config, "mono").front_center(); AY8912(config, m_ay, 1022727).add_route(ALL_OUTPUTS, "mono", 1.0); TMS5220(config, m_tms5220, 640000).add_route(ALL_OUTPUTS, "mono", 1.0); } //************************************************************************** // LIVE DEVICE //************************************************************************** a2bus_ssprite_device::a2bus_ssprite_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : a2bus_ssprite_device(mconfig, A2BUS_SSPRITE, tag, owner, clock) { } a2bus_ssprite_device::a2bus_ssprite_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, type, tag, owner, clock), device_a2bus_card_interface(mconfig, *this), m_tms(*this, TMS_TAG), m_ay(*this, AY_TAG), m_tms5220(*this, TMS5220_TAG) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void a2bus_ssprite_device::device_start() { } void a2bus_ssprite_device::device_reset() { } /* C0nx map: (info from Synetix SuperSprite Owners manual.pdf page 33 of 266) 0 - TMS9918 VDP vram read/write 1 - TMS9918 VDP register write 2 - TMS5220 Speech read/write 3 - Video Switch APPLE VIDEO IN OFF 4 - Video Switch APPLE VIDEO IN ON 5 - Video Switch APPLE ONLY OUT 6 - Video Switch MIX VDP/EXTERNAL VIDEO 7 - TMS 9918 WRITE ONLY/FRAME RESET C - AY Sound data write D - AY Sound data write E - AY Sound register write or data read F - AY Sound register write or data read */ uint8_t a2bus_ssprite_device::read_c0nx(uint8_t offset) { switch (offset) { case 0: return m_tms->vram_read(); case 1: return m_tms->register_read(); case 2: return 0x1f | m_tms5220->status_r(); case 14: case 15: return m_ay->data_r(); } return 0xff; } void a2bus_ssprite_device::write_c0nx(uint8_t offset, uint8_t data) { switch (offset) { case 0: m_tms->vram_write(data); break; case 1: m_tms->register_write(data); break; case 2: m_tms5220->data_w(data); break; case 12: case 13: m_ay->data_w(data); break; case 14: case 15: m_ay->address_w(data); break; } } WRITE_LINE_MEMBER( a2bus_ssprite_device::tms_irq_w ) { if (state) raise_slot_irq(); else lower_slot_irq(); } } // anonymous namespace //************************************************************************** // GLOBAL VARIABLES //************************************************************************** DEFINE_DEVICE_TYPE_PRIVATE(A2BUS_SSPRITE, device_a2bus_card_interface, a2bus_ssprite_device, "a2ssprite", "Synetix SuperSprite")