// license:BSD-3-Clause // copyright-holders:R. Belmont /********************************************************************* a2sam.c Implementation of the S.A.M. "Software Automated Mouth" card *********************************************************************/ #include "emu.h" #include "a2sam.h" #include "sound/dac.h" #include "speaker.h" namespace { //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class a2bus_sam_device: public device_t, public device_a2bus_card_interface { public: // construction/destruction a2bus_sam_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, A2BUS_SAM, tag, owner, clock), device_a2bus_card_interface(mconfig, *this), m_dac(*this, "dac") { } protected: 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 void write_c0nx(uint8_t offset, uint8_t data) override { m_dac->write(data); } virtual bool take_c800() override { return false; } required_device m_dac; }; //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void a2bus_sam_device::device_add_mconfig(machine_config &config) { SPEAKER(config, "speaker").front_center(); DAC_8BIT_R2R(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.5); // unknown DAC } } // anonymous namespace //************************************************************************** // GLOBAL VARIABLES //************************************************************************** DEFINE_DEVICE_TYPE_PRIVATE(A2BUS_SAM, device_a2bus_card_interface, a2bus_sam_device, "a2sam", "Don't Ask Software S.A.M.")