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sgi_mc_device: Hooked up VDMA done interrupt, no appreciable effect, nw

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This commit is contained in:
MooglyGuy 2019-02-10 02:29:49 +01:00
parent ea6d72aa5e
commit d8830f5429
3 changed files with 17 additions and 5 deletions
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2
src/mame/drivers/indy_indigo2.cpp
View File

@ -220,7 +220,7 @@ void ip22_state::ip22_base(machine_config &config)
NEWPORT_VIDEO(config, m_newport, m_maincpu, m_hpc3);
SGI_MC(config, m_mem_ctrl, m_maincpu, ":hpc3:eeprom");
SGI_MC(config, m_mem_ctrl, m_maincpu, ":hpc3:eeprom", m_hpc3);
NSCSI_BUS(config, "scsibus", 0);
NSCSI_CONNECTOR(config, "scsibus:0").option_set("wd33c93", WD33C93B)

13
src/mame/machine/sgi.cpp
View File

@ -31,6 +31,7 @@ sgi_mc_device::sgi_mc_device(const machine_config &mconfig, const char *tag, dev
: device_t(mconfig, SGI_MC, tag, owner, clock)
, m_maincpu(*this, finder_base::DUMMY_TAG)
, m_eeprom(*this, finder_base::DUMMY_TAG)
, m_hpc3(*this, finder_base::DUMMY_TAG)
, m_rpss_timer(nullptr)
, m_dma_timer(nullptr)
, m_watchdog(0)
@ -194,7 +195,7 @@ uint32_t sgi_mc_device::dma_translate(uint32_t address)
{
for (int entry = 0; entry < 4; entry++)
{
if ((address & 0xfff00000) == (m_dma_tlb_entry_hi[entry] & 0xfff00000))
if ((address & 0xffc00000) == (m_dma_tlb_entry_hi[entry] & 0xffc00000))
{
const uint32_t offset = address - m_dma_tlb_entry_hi[entry];
return ((m_dma_tlb_entry_lo[entry] &~ 0x3f) << 6) + (offset & 0xfff);
@ -241,7 +242,7 @@ void sgi_mc_device::dma_tick()
shift -= 8;
}
m_space->write_byte(m_dma_gio64_addr, data);
m_space->write_dword(m_dma_gio64_addr, data);
m_dma_mem_addr += length;
m_dma_count -= length;
}
@ -264,6 +265,10 @@ void sgi_mc_device::dma_tick()
m_dma_timer->adjust(attotime::never);
m_dma_run |= (1 << 3);
m_dma_run &= ~(1 << 6);
if (BIT(m_dma_control, 4))
{
m_hpc3->raise_local_irq(3, 1 << 4);
}
}
else
{
@ -571,6 +576,10 @@ WRITE32_MEMBER( sgi_mc_device::write )
case 0x0168/4:
LOGMASKED(LOG_WRITES | LOG_DMA, "%s: DMA Control Write: %08x & %08x\n", machine().describe_context(), data, mem_mask);
m_dma_control = data;
if (!BIT(m_dma_control, 4))
{
m_hpc3->lower_local_irq(3, 1 << 4);
}
break;
case 0x0180/4:
LOGMASKED(LOG_WRITES | LOG_DMA, "%s: DMA TLB Entry 0 High Write: %08x & %08x\n", machine().describe_context(), data, mem_mask);

7
src/mame/machine/sgi.h
View File

@ -14,16 +14,18 @@
#pragma once
#include "machine/eepromser.h"
#include "machine/hpc3.h"
class sgi_mc_device : public device_t
{
public:
template <typename T, typename U>
sgi_mc_device(const machine_config &mconfig, const char *tag, device_t *owner, T &&cpu_tag, U &&eeprom_tag)
template <typename T, typename U, typename V>
sgi_mc_device(const machine_config &mconfig, const char *tag, device_t *owner, T &&cpu_tag, U &&eeprom_tag, V &&hpc3_tag)
: sgi_mc_device(mconfig, tag, owner, (uint32_t)0)
{
m_maincpu.set_tag(std::forward<T>(cpu_tag));
m_eeprom.set_tag(std::forward<U>(eeprom_tag));
m_hpc3.set_tag(std::forward<V>(hpc3_tag));
}
sgi_mc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
@ -49,6 +51,7 @@ private:
required_device<cpu_device> m_maincpu;
required_device<eeprom_serial_93cxx_device> m_eeprom;
required_device<hpc3_device> m_hpc3;
address_space *m_space;