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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
/***************************************************************************
sh_dmac.h
SH DMA controller
***************************************************************************/
#include "emu.h"
#include "sh_dmac.h"
#include "sh7042.h"
DEFINE_DEVICE_TYPE(SH_DMAC, sh_dmac_device, "sh_dmac", "SH DMA controller")
DEFINE_DEVICE_TYPE(SH_DMAC_CHANNEL, sh_dmac_channel_device, "sh_dmac_channel", "SH DMA controller channel")
sh_dmac_device::sh_dmac_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) :
device_t(mconfig, SH_DMAC, tag, owner, clock),
m_cpu(*this, finder_base::DUMMY_TAG)
{
}
void sh_dmac_device::device_start()
{
save_item(NAME(m_dmaor));
}
void sh_dmac_device::device_reset()
{
m_dmaor = 0;
}
u16 sh_dmac_device::dmaor_r()
{
logerror("dmaor_r\n");
return m_dmaor;
}
void sh_dmac_device::dmaor_w(offs_t, u16 data, u16 mem_mask)
{
COMBINE_DATA(&m_dmaor);
logerror("dmaor_w %04x\n", m_dmaor);
}
sh_dmac_channel_device::sh_dmac_channel_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) :
device_t(mconfig, SH_DMAC_CHANNEL, tag, owner, clock),
m_cpu(*this, finder_base::DUMMY_TAG),
m_intc(*this, finder_base::DUMMY_TAG)
{
}
void sh_dmac_channel_device::device_start()
{
save_item(NAME(m_sar));
save_item(NAME(m_dar));
save_item(NAME(m_dmatcr));
save_item(NAME(m_chcr));
}
void sh_dmac_channel_device::device_reset()
{
m_sar = 0;
m_dar = 0;
m_dmatcr = 0;
m_chcr = 0;
}
u32 sh_dmac_channel_device::sar_r()
{
logerror("sar_r\n");
return m_sar;
}
void sh_dmac_channel_device::sar_w(offs_t, u32 data, u32 mem_mask)
{
COMBINE_DATA(&m_sar);
logerror("sar_w %08x\n", m_sar);
}
u32 sh_dmac_channel_device::dar_r()
{
logerror("dar_r\n");
return m_dar;
}
void sh_dmac_channel_device::dar_w(offs_t, u32 data, u32 mem_mask)
{
COMBINE_DATA(&m_dar);
logerror("dar_w %08x\n", m_dar);
}
u32 sh_dmac_channel_device::dmatcr_r()
{
logerror("dmatcr_r\n");
return m_dmatcr;
}
void sh_dmac_channel_device::dmatcr_w(offs_t, u32 data, u32 mem_mask)
{
COMBINE_DATA(&m_dmatcr);
logerror("dmatcr_w %08x\n", m_dmatcr);
}
u32 sh_dmac_channel_device::chcr_r()
{
logerror("chcr_r\n");
return m_chcr;
}
void sh_dmac_channel_device::chcr_w(offs_t, u32 data, u32 mem_mask)
{
COMBINE_DATA(&m_chcr);
logerror("chcr_w %08x\n", m_chcr);
}
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