// license:BSD-3-Clause // copyright-holders:AJR /*************************************************************************** Kawasaki Steel (Kawatetsu) KL5C80A12 CPU This is based on KC82, an MMU-enhanced version of KC80 (KL5C8400), Kawasaki's Z80-compatible core with an internal 16-bit architecture and significantly faster opcode timings, operating at up to 10 MHz (CLK = XIN/2). Important functional blocks: — MMU — USART (KP51) (unemulated) — 16-bit timer/counters (KP64, KP63) (KP64 unemulated) — 16-level interrupt controller (KP69) — Parallel ports (KP65, KP66) (unemulated) — 512-byte high-speed RAM — External bus interface unit (unemulated) ***************************************************************************/ #include "emu.h" #include "kl5c80a12.h" #include "kp63.h" // device type definition DEFINE_DEVICE_TYPE(KL5C80A12, kl5c80a12_device, "kl5c80a12", "Kawasaki Steel KL5C80A12") static const z80_daisy_config pseudo_daisy_config[] = { { "kp69" }, { nullptr } }; //------------------------------------------------- // kl5c80a12_device - constructor //------------------------------------------------- kl5c80a12_device::kl5c80a12_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : kc82_device(mconfig, KL5C80A12, tag, owner, clock, address_map_constructor(FUNC(kl5c80a12_device::internal_ram), this), address_map_constructor(FUNC(kl5c80a12_device::internal_io), this)) , m_kp69(*this, "kp69") { } //------------------------------------------------- // internal_ram - map for high-speed internal RAM //------------------------------------------------- void kl5c80a12_device::internal_ram(address_map &map) { map(0xffe00, 0xfffff).ram().share("ram"); } //------------------------------------------------- // internal_io - map for internal I/O registers //------------------------------------------------- void kl5c80a12_device::internal_io(address_map &map) { map(0x00, 0x07).mirror(0xff00).rw(FUNC(kl5c80a12_device::mmu_r), FUNC(kl5c80a12_device::mmu_w)); map(0x20, 0x25).mirror(0xff00).rw("timerb", FUNC(kp63_3channel_device::read), FUNC(kp63_3channel_device::write)); map(0x34, 0x34).mirror(0xff00).rw(m_kp69, FUNC(kp69_device::isrl_r), FUNC(kp69_device::lerl_pgrl_w)); map(0x35, 0x35).mirror(0xff00).rw(m_kp69, FUNC(kp69_device::isrh_r), FUNC(kp69_device::lerh_pgrh_w)); map(0x36, 0x36).mirror(0xff00).rw(m_kp69, FUNC(kp69_device::imrl_r), FUNC(kp69_device::imrl_w)); map(0x37, 0x37).mirror(0xff00).rw(m_kp69, FUNC(kp69_device::imrh_r), FUNC(kp69_device::ivr_imrh_w)); } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void kl5c80a12_device::device_start() { kc82_device::device_start(); m_kp69->add_to_state(*this, KP69_IRR); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void kl5c80a12_device::device_reset() { kc82_device::device_reset(); } //------------------------------------------------- // device_add_mconfig - add device-specific // machine configuration //------------------------------------------------- void kl5c80a12_device::device_add_mconfig(machine_config &config) { KP69(config, m_kp69); m_kp69->int_callback().set_inputline(*this, INPUT_LINE_IRQ0); kp63_3channel_device &timerb(KP63_3CHANNEL(config, "timerb", DERIVED_CLOCK(1, 2))); timerb.outs_callback<0>().set(m_kp69, FUNC(kp69_device::ir_w<13>)); timerb.outs_callback<1>().set(m_kp69, FUNC(kp69_device::ir_w<14>)); timerb.outs_callback<2>().set(m_kp69, FUNC(kp69_device::ir_w<15>)); } //------------------------------------------------- // device_config_complete - perform any // operations now that the configuration is // complete //------------------------------------------------- void kl5c80a12_device::device_config_complete() { set_daisy_config(pseudo_daisy_config); }