diff options
Diffstat (limited to 'src/devices/cpu/h8/h83217.cpp')
-rw-r--r-- | src/devices/cpu/h8/h83217.cpp | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/src/devices/cpu/h8/h83217.cpp b/src/devices/cpu/h8/h83217.cpp new file mode 100644 index 00000000000..30b5a9e4a20 --- /dev/null +++ b/src/devices/cpu/h8/h83217.cpp @@ -0,0 +1,282 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert, hap +/*************************************************************************** + + h83217.cpp + + H8/3217 family emulation + + TODO: + - H8/3212 and H8/3202 have less internal modules + - PWM timer module + - Host Interface module + - optional I2C bus module + - keyboard matrix interrupt + - TCONR @ 0xff9f (timer connection) + - SEDGR @ 0xffa8 (edge sense) + - WSCR @ 0xffc2 (waitstate control) + - finish STCR emulation + - finish SYSCR emulation + +***************************************************************************/ + +#include "emu.h" +#include "h83217.h" + +DEFINE_DEVICE_TYPE(H83217, h83217_device, "h83217", "Hitachi H8/3217") +DEFINE_DEVICE_TYPE(H83216, h83216_device, "h83216", "Hitachi H8/3216") +DEFINE_DEVICE_TYPE(H83214, h83214_device, "h83214", "Hitachi H8/3214") +DEFINE_DEVICE_TYPE(H83212, h83212_device, "h83212", "Hitachi H8/3212") +DEFINE_DEVICE_TYPE(H83202, h83202_device, "h83202", "Hitachi H8/3202") + + +h83217_device::h83217_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u32 rom_size, u32 ram_size) : + h8_device(mconfig, type, tag, owner, clock, address_map_constructor(FUNC(h83217_device::map), this)), + m_intc(*this, "intc"), + m_port(*this, "port%u", 1), + m_timer8(*this, "timer8_%u", 0), + m_timer16(*this, "timer16"), + m_timer16_0(*this, "timer16:0"), + m_watchdog(*this, "watchdog"), + m_ram_view(*this, "ram_view"), + m_rom_size(rom_size), + m_ram_size(ram_size), + m_md(3) +{ +} + +h83217_device::h83217_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : + h83217_device(mconfig, H83217, tag, owner, clock, 0xf000, 0x800) +{ +} + +h83216_device::h83216_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : + h83217_device(mconfig, H83216, tag, owner, clock, 0xc000, 0x800) +{ +} + +h83214_device::h83214_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : + h83217_device(mconfig, H83214, tag, owner, clock, 0x8000, 0x400) +{ +} + +h83212_device::h83212_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : + h83217_device(mconfig, H83212, tag, owner, clock, 0x4000, 0x200) +{ +} + +h83202_device::h83202_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : + h83217_device(mconfig, H83202, tag, owner, clock, 0x4000, 0x200) +{ +} + +void h83217_device::map(address_map &map) +{ + if(m_md >= 2) + map(0x0000, m_rom_size - 1).rom(); + + map(0xff80 - m_ram_size, 0xff7f).view(m_ram_view); + m_ram_view[0](0xff80 - m_ram_size, 0xff7f).ram().share(m_internal_ram); + + map(0xff90, 0xff90).rw(m_timer16_0, FUNC(h8325_timer16_channel_device::tcr_r), FUNC(h8325_timer16_channel_device::tcr_w)); + map(0xff91, 0xff91).rw(m_timer16_0, FUNC(h8325_timer16_channel_device::tsr_r), FUNC(h8325_timer16_channel_device::tsr_w)); + map(0xff92, 0xff93).rw(m_timer16_0, FUNC(h8325_timer16_channel_device::tcnt_r), FUNC(h8325_timer16_channel_device::tcnt_w)); + map(0xff94, 0xff95).rw(m_timer16_0, FUNC(h8325_timer16_channel_device::ocra_r), FUNC(h8325_timer16_channel_device::ocra_w)); + map(0xff96, 0xff97).rw(m_timer16_0, FUNC(h8325_timer16_channel_device::ocrb_r), FUNC(h8325_timer16_channel_device::ocrb_w)); + map(0xff98, 0xff99).r(m_timer16_0, FUNC(h8325_timer16_channel_device::icr_r)); + + map(0xff9a, 0xff9a).rw(m_timer8[2], FUNC(h8_timer8_channel_device::tcr_r), FUNC(h8_timer8_channel_device::tcr_w)); + map(0xff9b, 0xff9b).rw(m_timer8[2], FUNC(h8_timer8_channel_device::tcsr_r), FUNC(h8_timer8_channel_device::tcsr_w)); + map(0xff9c, 0xff9d).rw(m_timer8[2], FUNC(h8_timer8_channel_device::tcor_r), FUNC(h8_timer8_channel_device::tcor_w)); + map(0xff9e, 0xff9e).rw(m_timer8[2], FUNC(h8_timer8_channel_device::tcnt_r), FUNC(h8_timer8_channel_device::tcnt_w)); + map(0xff9f, 0xff9f).lw8(NAME([this](u8 data) { logerror("tconr = %02x\n", data); })); + + map(0xffaa, 0xffab).rw(m_watchdog, FUNC(h8_watchdog_device::wd_r), FUNC(h8_watchdog_device::wd_w)); + + map(0xffac, 0xffac).rw(m_port[0], FUNC(h8_port_device::pcr_r), FUNC(h8_port_device::pcr_w)); + map(0xffad, 0xffad).rw(m_port[1], FUNC(h8_port_device::pcr_r), FUNC(h8_port_device::pcr_w)); + map(0xffae, 0xffae).rw(m_port[2], FUNC(h8_port_device::pcr_r), FUNC(h8_port_device::pcr_w)); + map(0xffb0, 0xffb0).rw(m_port[0], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffb1, 0xffb1).rw(m_port[1], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffb2, 0xffb2).rw(m_port[0], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + map(0xffb3, 0xffb3).rw(m_port[1], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + map(0xffb4, 0xffb4).rw(m_port[2], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffb5, 0xffb5).rw(m_port[3], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffb6, 0xffb6).rw(m_port[2], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + map(0xffb7, 0xffb7).rw(m_port[3], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + map(0xffb8, 0xffb8).rw(m_port[4], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffb9, 0xffb9).rw(m_port[5], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffba, 0xffba).rw(m_port[4], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + map(0xffbb, 0xffbb).rw(m_port[5], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + map(0xffbc, 0xffbc).rw(m_port[6], FUNC(h8_port_device::ff_r), FUNC(h8_port_device::ddr_w)); + map(0xffbe, 0xffbe).rw(m_port[6], FUNC(h8_port_device::port_r), FUNC(h8_port_device::dr_w)); + + map(0xffc2, 0xffc2).lw8(NAME([this](u8 data) { logerror("wscr = %02x\n", data); })); + map(0xffc3, 0xffc3).rw(FUNC(h83217_device::stcr_r), FUNC(h83217_device::stcr_w)); + map(0xffc4, 0xffc4).rw(FUNC(h83217_device::syscr_r), FUNC(h83217_device::syscr_w)); + map(0xffc5, 0xffc5).r(FUNC(h83217_device::mdcr_r)); + map(0xffc6, 0xffc6).lr8(NAME([this]() { return m_intc->iscr_r() | ~0x47; })); + map(0xffc6, 0xffc6).lw8(NAME([this](u8 data) { m_intc->iscr_w(data & 0x47); })); + map(0xffc7, 0xffc7).lr8(NAME([this]() { return m_intc->ier_r() | ~0x47; })); + map(0xffc7, 0xffc7).lw8(NAME([this](u8 data) { m_intc->ier_w(data & 0x47); })); + + map(0xffc8, 0xffc8).rw(m_timer8[0], FUNC(h8_timer8_channel_device::tcr_r), FUNC(h8_timer8_channel_device::tcr_w)); + map(0xffc9, 0xffc9).rw(m_timer8[0], FUNC(h8_timer8_channel_device::tcsr_r), FUNC(h8_timer8_channel_device::tcsr_w)); + map(0xffca, 0xffcb).rw(m_timer8[0], FUNC(h8_timer8_channel_device::tcor_r), FUNC(h8_timer8_channel_device::tcor_w)); + map(0xffcc, 0xffcc).rw(m_timer8[0], FUNC(h8_timer8_channel_device::tcnt_r), FUNC(h8_timer8_channel_device::tcnt_w)); + map(0xffd0, 0xffd0).rw(m_timer8[1], FUNC(h8_timer8_channel_device::tcr_r), FUNC(h8_timer8_channel_device::tcr_w)); + map(0xffd1, 0xffd1).rw(m_timer8[1], FUNC(h8_timer8_channel_device::tcsr_r), FUNC(h8_timer8_channel_device::tcsr_w)); + map(0xffd2, 0xffd3).rw(m_timer8[1], FUNC(h8_timer8_channel_device::tcor_r), FUNC(h8_timer8_channel_device::tcor_w)); + map(0xffd4, 0xffd4).rw(m_timer8[1], FUNC(h8_timer8_channel_device::tcnt_r), FUNC(h8_timer8_channel_device::tcnt_w)); + + map(0xffd8, 0xffd8).rw(m_sci[0], FUNC(h8_sci_device::smr_r), FUNC(h8_sci_device::smr_w)); + map(0xffd9, 0xffd9).rw(m_sci[0], FUNC(h8_sci_device::brr_r), FUNC(h8_sci_device::brr_w)); + map(0xffda, 0xffda).rw(m_sci[0], FUNC(h8_sci_device::scr_r), FUNC(h8_sci_device::scr_w)); + map(0xffdb, 0xffdb).rw(m_sci[0], FUNC(h8_sci_device::tdr_r), FUNC(h8_sci_device::tdr_w)); + map(0xffdc, 0xffdc).rw(m_sci[0], FUNC(h8_sci_device::ssr_r), FUNC(h8_sci_device::ssr_w)); + map(0xffdd, 0xffdd).r(m_sci[0], FUNC(h8_sci_device::rdr_r)); + map(0xffe0, 0xffe0).rw(m_sci[1], FUNC(h8_sci_device::smr_r), FUNC(h8_sci_device::smr_w)); + map(0xffe1, 0xffe1).rw(m_sci[1], FUNC(h8_sci_device::brr_r), FUNC(h8_sci_device::brr_w)); + map(0xffe2, 0xffe2).rw(m_sci[1], FUNC(h8_sci_device::scr_r), FUNC(h8_sci_device::scr_w)); + map(0xffe3, 0xffe3).rw(m_sci[1], FUNC(h8_sci_device::tdr_r), FUNC(h8_sci_device::tdr_w)); + map(0xffe4, 0xffe4).rw(m_sci[1], FUNC(h8_sci_device::ssr_r), FUNC(h8_sci_device::ssr_w)); + map(0xffe5, 0xffe5).r(m_sci[1], FUNC(h8_sci_device::rdr_r)); +} + +void h83217_device::device_add_mconfig(machine_config &config) +{ + H8_INTC(config, m_intc, *this); + H8_PORT(config, m_port[0], *this, h8_device::PORT_1, 0x00, 0x00); + H8_PORT(config, m_port[1], *this, h8_device::PORT_2, 0x00, 0x00); + H8_PORT(config, m_port[2], *this, h8_device::PORT_3, 0x00, 0x00); + H8_PORT(config, m_port[3], *this, h8_device::PORT_4, 0x00, 0x00); + H8_PORT(config, m_port[4], *this, h8_device::PORT_5, 0x00, 0xc0); + H8_PORT(config, m_port[5], *this, h8_device::PORT_6, 0x00, 0x80); + H8_PORT(config, m_port[6], *this, h8_device::PORT_7, 0x00, 0x00); + H8_TIMER8_CHANNEL(config, m_timer8[0], *this, m_intc, 23, 24, 25, 8, 2, 64, 32, 1024, 256); + H8_TIMER8_CHANNEL(config, m_timer8[1], *this, m_intc, 26, 27, 28, 8, 2, 64, 128, 1024, 2048); + H8_TIMER8_CHANNEL(config, m_timer8[2], *this, m_intc, 47, 48, 49, 1, 1, 2, 2, 512, 512); + H8_TIMER16(config, m_timer16, *this, 1, 0xff); + H8325_TIMER16_CHANNEL(config, m_timer16_0, *this, m_intc, 19); + H8_SCI(config, m_sci[0], 0, *this, m_intc, 29, 30, 31, 32); + H8_SCI(config, m_sci[1], 1, *this, m_intc, 33, 34, 35, 36); + H8_WATCHDOG(config, m_watchdog, *this, m_intc, 44, h8_watchdog_device::B); +} + +void h83217_device::execute_set_input(int inputnum, int state) +{ + m_intc->set_input(inputnum, state); +} + +void h83217_device::irq_setup() +{ + m_CCR |= F_I; +} + +void h83217_device::update_irq_filter() +{ + if(m_CCR & F_I) + m_intc->set_filter(2, -1); + else + m_intc->set_filter(0, -1); +} + +void h83217_device::interrupt_taken() +{ + standard_irq_callback(m_intc->interrupt_taken(m_taken_irq_vector), m_NPC); +} + +void h83217_device::internal_update(u64 current_time) +{ + u64 event_time = 0; + + add_event(event_time, m_sci[0]->internal_update(current_time)); + add_event(event_time, m_sci[1]->internal_update(current_time)); + add_event(event_time, m_timer8[0]->internal_update(current_time)); + add_event(event_time, m_timer8[1]->internal_update(current_time)); + add_event(event_time, m_timer8[2]->internal_update(current_time)); + add_event(event_time, m_timer16_0->internal_update(current_time)); + add_event(event_time, m_watchdog->internal_update(current_time)); + + recompute_bcount(event_time); +} + +void h83217_device::notify_standby(int state) +{ + m_sci[0]->notify_standby(state); + m_sci[1]->notify_standby(state); + + for (auto & timer8 : m_timer8) + timer8->notify_standby(state); + + m_timer16_0->notify_standby(state); + m_watchdog->notify_standby(state); +} + +void h83217_device::device_start() +{ + h8_device::device_start(); + + m_stcr = 0; + m_syscr = 0; + + save_item(NAME(m_md)); + save_item(NAME(m_stcr)); + save_item(NAME(m_syscr)); +} + +void h83217_device::device_reset() +{ + h8_device::device_reset(); + + m_stcr = 0x00; + m_syscr = 0x09; + m_ram_view.select(0); +} + +u8 h83217_device::stcr_r() +{ + return m_stcr; +} + +void h83217_device::stcr_w(u8 data) +{ + logerror("stcr = %02x\n", data); + + // ICKS0/1 + m_timer8[0]->set_extra_clock_bit(BIT(data, 0)); + m_timer8[1]->set_extra_clock_bit(BIT(data, 1)); + + m_stcr = data; +} + +u8 h83217_device::syscr_r() +{ + return m_syscr; +} + +void h83217_device::syscr_w(u8 data) +{ + logerror("syscr = %02x\n", data); + + // RAME + if(data & 1) + m_ram_view.select(0); + else + m_ram_view.disable(); + + // NMIEG + m_intc->set_nmi_edge(BIT(data, 2)); + + // SSBY + m_standby_pending = bool(data & 0x80); + + m_syscr = (m_syscr & 0x08) | (data & 0xf7); +} + +u8 h83217_device::mdcr_r() +{ + if(!machine().side_effects_disabled()) + logerror("mdcr_r\n"); + return (m_md & 0x03) | 0xe4; +} |