// license:BSD-3-Clause // copyright-holders:Patrick Mackinlay /* * An implementation of the ARBGA (SRX Arbiter Gate Array) device found in * Intergraph InterPro family systems. There is no public documentation on this * device, so the implementation is being built to follow the logic of the * boot ROM and its diagnostic tests. * * Please be aware that code in here is not only broken, it's likely wrong in * many cases. * * TODO * - too long to list */ #include "emu.h" #include "interpro_arbga.h" #define VERBOSE 0 #include "logmacro.h" #if 0 // this might be for an earlier revision of the device void interpro_arbga_device::map(address_map &map) { map(0x00, 0x03).rw(FUNC(interpro_arbga_device::sdepid_r), FUNC(interpro_arbga_device::sdepid_w)); map(0x04, 0x07).rw(FUNC(interpro_arbga_device::snapid_r), FUNC(interpro_arbga_device::snapid_w)); map(0x08, 0x0b).rw(FUNC(interpro_arbga_device::prilo_r), FUNC(interpro_arbga_device::prilo_w)); map(0x0c, 0x0f).rw(FUNC(interpro_arbga_device::prihi_r), FUNC(interpro_arbga_device::prihi_w)); map(0x10, 0x13).rw(FUNC(interpro_arbga_device::errdomlo_r), FUNC(interpro_arbga_device::errdomlo_w)); map(0x14, 0x17).rw(FUNC(interpro_arbga_device::errdomhi_r), FUNC(interpro_arbga_device::errdomhi_w)); map(0x18, 0x1b).rw(FUNC(interpro_arbga_device::tmctrl_r), FUNC(interpro_arbga_device::tmctrl_w)); map(0x24, 0x27).rw(FUNC(interpro_arbga_device::tmsrnem_r), FUNC(interpro_arbga_device::tmsrnem_w)); map(0x28, 0x2b).rw(FUNC(interpro_arbga_device::tmsrhog_r), FUNC(interpro_arbga_device::tmsrhog_w)); map(0x2c, 0x2f).rw(FUNC(interpro_arbga_device::tmscale_r), FUNC(interpro_arbga_device::tmscale_w)); } #endif // derived from the FDM "dump_arb" command void interpro_arbga_device::map(address_map &map) { map(0x00, 0x03).rw(FUNC(interpro_arbga_device::sdepid_r), FUNC(interpro_arbga_device::sdepid_w)); map(0x04, 0x07).rw(FUNC(interpro_arbga_device::arbsnap_r), FUNC(interpro_arbga_device::arbsnap_w)); map(0x08, 0x0b).rw(FUNC(interpro_arbga_device::fixprils_r), FUNC(interpro_arbga_device::fixprils_w)); map(0x0c, 0x0f).rw(FUNC(interpro_arbga_device::fixprims_r), FUNC(interpro_arbga_device::fixprims_w)); map(0x10, 0x13).rw(FUNC(interpro_arbga_device::sysdomls_r), FUNC(interpro_arbga_device::sysdomls_w)); map(0x14, 0x17).rw(FUNC(interpro_arbga_device::sysdomms_r), FUNC(interpro_arbga_device::sysdomms_w)); map(0x18, 0x1b).rw(FUNC(interpro_arbga_device::tctrl_r), FUNC(interpro_arbga_device::tctrl_w)); map(0x1d, 0x1d).rw(FUNC(interpro_arbga_device::inem_r), FUNC(interpro_arbga_device::inem_w)); // boot code writes 0x10 map(0x21, 0x21).rw(FUNC(interpro_arbga_device::enem_r), FUNC(interpro_arbga_device::enem_w)); // boot code writes 0x07 map(0x24, 0x27).rw(FUNC(interpro_arbga_device::hog_r), FUNC(interpro_arbga_device::hog_w)); map(0x28, 0x2b).rw(FUNC(interpro_arbga_device::lock_r), FUNC(interpro_arbga_device::lock_w)); map(0x2c, 0x2f).rw(FUNC(interpro_arbga_device::lockprs_r), FUNC(interpro_arbga_device::lockprs_w)); map(0x30, 0x33).rw(FUNC(interpro_arbga_device::hiblockls_r), FUNC(interpro_arbga_device::hiblockls_w)); map(0x34, 0x37).rw(FUNC(interpro_arbga_device::hiblockms_r), FUNC(interpro_arbga_device::hiblockms_w)); map(0x3c, 0x3f).rw(FUNC(interpro_arbga_device::arbrev_r), FUNC(interpro_arbga_device::arbrev_w)); } DEFINE_DEVICE_TYPE(INTERPRO_ARBGA, interpro_arbga_device, "arbga", "SRX Arbiter Gate Array") interpro_arbga_device::interpro_arbga_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, INTERPRO_ARBGA, tag, owner, clock) { } void interpro_arbga_device::device_start() { save_item(NAME(m_sdepid)); save_item(NAME(m_arbsnap)); save_item(NAME(m_fixprils)); save_item(NAME(m_fixprims)); save_item(NAME(m_sysdomls)); save_item(NAME(m_sysdomms)); save_item(NAME(m_tctrl)); save_item(NAME(m_inem)); save_item(NAME(m_enem)); save_item(NAME(m_hog)); save_item(NAME(m_lock)); save_item(NAME(m_lockprs)); save_item(NAME(m_hiblockls)); save_item(NAME(m_hiblockms)); save_item(NAME(m_arbrev)); } void interpro_arbga_device::device_reset() { }