diff options
Diffstat (limited to 'src/devices/bus/electron/cart/ap5.cpp')
-rw-r--r-- | src/devices/bus/electron/cart/ap5.cpp | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/src/devices/bus/electron/cart/ap5.cpp b/src/devices/bus/electron/cart/ap5.cpp deleted file mode 100644 index 660587c7642..00000000000 --- a/src/devices/bus/electron/cart/ap5.cpp +++ /dev/null @@ -1,171 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Nigel Barnes -/********************************************************************** - - ACP Advanced Plus 5 - -**********************************************************************/ - - -#include "emu.h" -#include "ap5.h" - - -//************************************************************************** -// DEVICE DEFINITIONS -//************************************************************************** - -DEFINE_DEVICE_TYPE(ELECTRON_AP5, electron_ap5_device, "electron_ap5", "P.R.E.S. Advanced Plus 5") - - -//------------------------------------------------- -// device_add_mconfig - add device configuration -//------------------------------------------------- - -void electron_ap5_device::device_add_mconfig(machine_config &config) -{ - /* rom sockets */ - GENERIC_SOCKET(config, m_romslot[0], generic_plain_slot, "electron_rom", "bin,rom"); // ROM SLOT 14 - m_romslot[0]->set_device_load(device_image_load_delegate(&electron_ap5_device::device_image_load_rom1_load, this)); - GENERIC_SOCKET(config, m_romslot[1], generic_plain_slot, "electron_rom", "bin,rom"); // ROM SLOT 15 - m_romslot[1]->set_device_load(device_image_load_delegate(&electron_ap5_device::device_image_load_rom2_load, this)); - - /* via */ - VIA6522(config, m_via, DERIVED_CLOCK(1, 16)); - m_via->readpb_handler().set(m_userport, FUNC(bbc_userport_slot_device::pb_r)); - m_via->writepb_handler().set(m_userport, FUNC(bbc_userport_slot_device::pb_w)); - m_via->irq_handler().set(DEVICE_SELF_OWNER, FUNC(electron_cartslot_device::irq_w)); - - /* user port */ - BBC_USERPORT_SLOT(config, m_userport, bbc_userport_devices, nullptr); - m_userport->cb1_handler().set(m_via, FUNC(via6522_device::write_cb1)); - m_userport->cb2_handler().set(m_via, FUNC(via6522_device::write_cb2)); - - /* 1mhz bus port */ - BBC_1MHZBUS_SLOT(config, m_1mhzbus, DERIVED_CLOCK(1, 16), bbc_1mhzbus_devices, nullptr); - m_1mhzbus->irq_handler().set(DEVICE_SELF_OWNER, FUNC(electron_cartslot_device::irq_w)); - m_1mhzbus->nmi_handler().set(DEVICE_SELF_OWNER, FUNC(electron_cartslot_device::nmi_w)); - - /* tube port */ - BBC_TUBE_SLOT(config, m_tube, electron_tube_devices, nullptr); - m_tube->irq_handler().set(DEVICE_SELF_OWNER, FUNC(electron_cartslot_device::irq_w)); -} - -//************************************************************************** -// LIVE DEVICE -//************************************************************************** - -//------------------------------------------------- -// electron_ap5_device - constructor -//------------------------------------------------- - -electron_ap5_device::electron_ap5_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : device_t(mconfig, ELECTRON_AP5, tag, owner, clock) - , device_electron_cart_interface(mconfig, *this) - , m_via(*this, "via6522") - , m_tube(*this, "tube") - , m_1mhzbus(*this, "1mhzbus") - , m_userport(*this, "userport") - , m_romslot(*this, "rom%u", 1) -{ -} - -//------------------------------------------------- -// device_start - device-specific startup -//------------------------------------------------- - -void electron_ap5_device::device_start() -{ -} - -//------------------------------------------------- -// read - cartridge data read -//------------------------------------------------- - -uint8_t electron_ap5_device::read(offs_t offset, int infc, int infd, int romqa, int oe, int oe2) -{ - uint8_t data = 0xff; - - if (infc) - { - data = m_1mhzbus->fred_r(offset); - - switch (offset & 0xf0) - { - case 0xb0: - data &= m_via->read(offset & 0x0f); - break; - - case 0xe0: - data &= m_tube->host_r(offset & 0x0f); - break; - } - } - else if (infd) - { - data = m_1mhzbus->jim_r(offset); - } - else if (oe) - { - data = m_romslot[romqa]->read_rom(offset & 0x3fff); - } - else if (oe2) - { - data = m_rom[offset & 0x1fff]; - } - - return data; -} - -//------------------------------------------------- -// write - cartridge data write -//------------------------------------------------- - -void electron_ap5_device::write(offs_t offset, uint8_t data, int infc, int infd, int romqa, int oe, int oe2) -{ - if (infc) - { - m_1mhzbus->fred_w(offset, data); - - switch (offset & 0xf0) - { - case 0xb0: - m_via->write(offset & 0x0f, data); - break; - - case 0xe0: - m_tube->host_w(offset & 0x0f, data); - break; - } - } - else if (infd) - { - m_1mhzbus->jim_w(offset, data); - } -} - - -//************************************************************************** -// IMPLEMENTATION -//************************************************************************** - -image_init_result electron_ap5_device::load_rom(device_image_interface &image, generic_slot_device *slot) -{ - uint32_t size = slot->common_get_size("rom"); - - // socket accepts 8K and 16K ROM only - if (size != 0x2000 && size != 0x4000) - { - image.seterror(IMAGE_ERROR_UNSPECIFIED, "Invalid size: Only 8K/16K is supported"); - return image_init_result::FAIL; - } - - slot->rom_alloc(0x4000, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE); - slot->common_load_rom(slot->get_rom_base(), size, "rom"); - - // mirror 8K ROMs - uint8_t *crt = slot->get_rom_base(); - if (size <= 0x2000) memcpy(crt + 0x2000, crt, 0x2000); - - return image_init_result::PASS; -} |