// license:BSD-3-Clause // copyright-holders:Ryan Holtz /***************************************************************************** SunPlus SPG2xx-series SoC peripheral emulation (System DMA) **********************************************************************/ #ifndef MAME_MACHINE_SPG2XX_SYSDMA_H #define MAME_MACHINE_SPG2XX_SYSDMA_H #pragma once #include "cpu/unsp/unsp.h" DECLARE_DEVICE_TYPE(SPG2XX_SYSDMA, spg2xx_sysdma_device) class spg2xx_sysdma_device : public device_t { public: template spg2xx_sysdma_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock, T &&cpu_tag) : spg2xx_sysdma_device(mconfig, tag, owner, clock) { m_cpu.set_tag(std::forward(cpu_tag)); } spg2xx_sysdma_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); uint16_t dma_r(offs_t offset); void dma_w(offs_t offset, uint16_t data); protected: virtual void device_start() override; virtual void device_reset() override; private: void do_cpu_dma(uint32_t len); uint16_t m_dma_regs[0x4]; required_device m_cpu; }; #endif // MAME_MACHINE_SPG2XX_SYSDMA_H