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/*********************************************************************
sgi.h
Silicon Graphics MC (Memory Controller) code
*********************************************************************/
#ifndef _SGIMC_H
#define _SGIMC_H
class sgi_mc_device : public device_t
{
public:
sgi_mc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~sgi_mc_device() {}
DECLARE_READ32_MEMBER(read);
DECLARE_WRITE32_MEMBER(write);
protected:
// device-level overrides
virtual void device_start();
private:
// internal state
emu_timer *m_tUpdateTimer;
UINT32 m_nCPUControl0;
UINT32 m_nCPUControl1;
UINT32 m_nWatchdog;
UINT32 m_nSysID;
UINT32 m_nRPSSDiv;
UINT32 m_nRefCntPreload;
UINT32 m_nRefCnt;
UINT32 m_nGIO64ArbParam;
UINT32 m_nArbCPUTime;
UINT32 m_nArbBurstTime;
UINT32 m_nMemCfg0;
UINT32 m_nMemCfg1;
UINT32 m_nCPUMemAccCfg;
UINT32 m_nGIOMemAccCfg;
UINT32 m_nCPUErrorAddr;
UINT32 m_nCPUErrorStatus;
UINT32 m_nGIOErrorAddr;
UINT32 m_nGIOErrorStatus;
UINT32 m_nSysSemaphore;
UINT32 m_nGIOLock;
UINT32 m_nEISALock;
UINT32 m_nGIO64TransMask;
UINT32 m_nGIO64Subst;
UINT32 m_nDMAIntrCause;
UINT32 m_nDMAControl;
UINT32 m_nDMATLBEntry0Hi;
UINT32 m_nDMATLBEntry0Lo;
UINT32 m_nDMATLBEntry1Hi;
UINT32 m_nDMATLBEntry1Lo;
UINT32 m_nDMATLBEntry2Hi;
UINT32 m_nDMATLBEntry2Lo;
UINT32 m_nDMATLBEntry3Hi;
UINT32 m_nDMATLBEntry3Lo;
UINT32 m_nRPSSCounter;
UINT32 m_nDMAMemAddr;
UINT32 m_nDMALineCntWidth;
UINT32 m_nDMALineZoomStride;
UINT32 m_nDMAGIO64Addr;
UINT32 m_nDMAMode;
UINT32 m_nDMAZoomByteCnt;
UINT32 m_nDMARunning;
void update();
TIMER_CALLBACK_MEMBER(update_callback);
void timer_init();
};
extern const device_type SGI_MC;
#endif /* _SGIMC_H */
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