// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** MOS Technology 6529 Single Port Interface Adapter emulation **********************************************************************/ #include "emu.h" #include "mos6529.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define LOG 0 //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** // device type definition const device_type MOS6529 = &device_creator; //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // mos6529_device - constructor //------------------------------------------------- mos6529_device::mos6529_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, MOS6529, "MOS6529", tag, owner, clock, "mos6529", __FILE__), m_input(0), m_p0_handler(*this), m_p1_handler(*this), m_p2_handler(*this), m_p3_handler(*this), m_p4_handler(*this), m_p5_handler(*this), m_p6_handler(*this), m_p7_handler(*this) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void mos6529_device::device_start() { // resolve callbacks m_p0_handler.resolve_safe(); m_p1_handler.resolve_safe(); m_p2_handler.resolve_safe(); m_p3_handler.resolve_safe(); m_p4_handler.resolve_safe(); m_p5_handler.resolve_safe(); m_p6_handler.resolve_safe(); m_p7_handler.resolve_safe(); } //------------------------------------------------- // read - //------------------------------------------------- READ8_MEMBER( mos6529_device::read ) { return m_input; } //------------------------------------------------- // write - //------------------------------------------------- WRITE8_MEMBER( mos6529_device::write ) { m_p0_handler((data>>0)&1); m_p1_handler((data>>1)&1); m_p2_handler((data>>2)&1); m_p3_handler((data>>3)&1); m_p4_handler((data>>4)&1); m_p5_handler((data>>5)&1); m_p6_handler((data>>6)&1); m_p7_handler((data>>7)&1); }