// license:BSD-3-Clause // copyright-holders:Juergen Buchmueller /***************************************************************************** * * sh2.h * Portable Hitachi SH-2 (SH7600 family) emulator interface * * This work is based on C/C++ implementation of * the SH-2 CPU core and was heavily changed to the MAME CPU requirements. * Thanks also go to Chuck Mason and Olivier Galibert * for letting me peek into their SEMU code :-) * *****************************************************************************/ #ifndef MAME_CPU_SH2_SH2_H #define MAME_CPU_SH2_SH2_H #pragma once #include "sh.h" #define SH2_INT_NONE -1 #define SH2_INT_VBLIN 0 #define SH2_INT_VBLOUT 1 #define SH2_INT_HBLIN 2 #define SH2_INT_TIMER0 3 #define SH2_INT_TIMER1 4 #define SH2_INT_DSP 5 #define SH2_INT_SOUND 6 #define SH2_INT_SMPC 7 #define SH2_INT_PAD 8 #define SH2_INT_DMA2 9 #define SH2_INT_DMA1 10 #define SH2_INT_DMA0 11 #define SH2_INT_DMAILL 12 #define SH2_INT_SPRITE 13 #define SH2_INT_14 14 #define SH2_INT_15 15 #define SH2_INT_ABUS 16 #define SH2_DMA_KLUDGE_CB(name) int name(uint32_t src, uint32_t dst, uint32_t data, int size) #define SH2_DMA_FIFO_DATA_AVAILABLE_CB(name) int name(uint32_t src, uint32_t dst, uint32_t data, int size) #define SH2_FTCSR_READ_CB(name) void name(uint32_t data) class sh2_frontend; class sh2_device : public sh_common_execution { friend class sh2_frontend; public: typedef device_delegate dma_kludge_delegate; typedef device_delegate dma_fifo_data_available_delegate; typedef device_delegate ftcsr_read_delegate; // construction/destruction sh2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ~sh2_device() override; void set_is_slave(int slave) { m_is_slave = slave; } template void set_dma_kludge_callback(T &&... args) { m_dma_kludge_cb.set(std::forward(args)...); } template void set_dma_fifo_data_available_callback(T &&... args) { m_dma_fifo_data_available_cb.set(std::forward(args)...); } template void set_ftcsr_read_callback(T &&... args) { m_ftcsr_read_cb.set(std::forward(args)...); } DECLARE_READ32_MEMBER(sh2_internal_a5); // SCI DECLARE_READ8_MEMBER( smr_r ); DECLARE_WRITE8_MEMBER( smr_w ); DECLARE_READ8_MEMBER( brr_r ); DECLARE_WRITE8_MEMBER( brr_w ); DECLARE_READ8_MEMBER( scr_r ); DECLARE_WRITE8_MEMBER( scr_w ); DECLARE_READ8_MEMBER( tdr_r ); DECLARE_WRITE8_MEMBER( tdr_w ); DECLARE_READ8_MEMBER( ssr_r ); DECLARE_WRITE8_MEMBER( ssr_w ); DECLARE_READ8_MEMBER( rdr_r ); // FRT / FRC DECLARE_READ8_MEMBER( tier_r ); DECLARE_WRITE8_MEMBER( tier_w ); DECLARE_READ16_MEMBER( frc_r ); DECLARE_WRITE16_MEMBER( frc_w ); DECLARE_READ8_MEMBER( ftcsr_r ); DECLARE_WRITE8_MEMBER( ftcsr_w ); DECLARE_READ16_MEMBER( ocra_b_r ); DECLARE_WRITE16_MEMBER( ocra_b_w ); DECLARE_READ8_MEMBER( frc_tcr_r ); DECLARE_WRITE8_MEMBER( frc_tcr_w ); DECLARE_READ8_MEMBER( tocr_r ); DECLARE_WRITE8_MEMBER( tocr_w ); DECLARE_READ16_MEMBER( frc_icr_r ); // INTC DECLARE_READ16_MEMBER( ipra_r ); DECLARE_WRITE16_MEMBER( ipra_w ); DECLARE_READ16_MEMBER( iprb_r ); DECLARE_WRITE16_MEMBER( iprb_w ); DECLARE_READ16_MEMBER( vcra_r ); DECLARE_WRITE16_MEMBER( vcra_w ); DECLARE_READ16_MEMBER( vcrb_r ); DECLARE_WRITE16_MEMBER( vcrb_w ); DECLARE_READ16_MEMBER( vcrc_r ); DECLARE_WRITE16_MEMBER( vcrc_w ); DECLARE_READ16_MEMBER( vcrd_r ); DECLARE_WRITE16_MEMBER( vcrd_w ); DECLARE_READ16_MEMBER( vcrwdt_r ); DECLARE_WRITE16_MEMBER( vcrwdt_w ); DECLARE_READ32_MEMBER( vcrdiv_r ); DECLARE_WRITE32_MEMBER( vcrdiv_w ); DECLARE_READ16_MEMBER( intc_icr_r ); DECLARE_WRITE16_MEMBER( intc_icr_w ); // DIVU DECLARE_READ32_MEMBER( dvsr_r ); DECLARE_WRITE32_MEMBER( dvsr_w ); DECLARE_READ32_MEMBER( dvdnt_r ); DECLARE_WRITE32_MEMBER( dvdnt_w ); DECLARE_READ32_MEMBER( dvdnth_r ); DECLARE_WRITE32_MEMBER( dvdnth_w ); DECLARE_READ32_MEMBER( dvdntl_r ); DECLARE_WRITE32_MEMBER( dvdntl_w ); DECLARE_READ32_MEMBER( dvcr_r ); DECLARE_WRITE32_MEMBER( dvcr_w ); // DMAC template READ32_MEMBER(vcrdma_r) { return m_vcrdma[Channel] & 0x7f; } template WRITE32_MEMBER(vcrdma_w) { COMBINE_DATA(&m_vcrdma[Channel]); m_irq_vector.dmac[Channel] = m_vcrdma[Channel] & 0x7f; sh2_recalc_irq(); } template READ8_MEMBER(drcr_r) { return m_dmac[Channel].drcr & 3; } template WRITE8_MEMBER(drcr_w) { m_dmac[Channel].drcr = data & 3; sh2_recalc_irq(); } template READ32_MEMBER(sar_r) { return m_dmac[Channel].sar; } template WRITE32_MEMBER(sar_w) { COMBINE_DATA(&m_dmac[Channel].sar); } template READ32_MEMBER(dar_r) { return m_dmac[Channel].dar; } template WRITE32_MEMBER(dar_w) { COMBINE_DATA(&m_dmac[Channel].dar); } template READ32_MEMBER(dmac_tcr_r) { return m_dmac[Channel].tcr; } template WRITE32_MEMBER(dmac_tcr_w) { COMBINE_DATA(&m_dmac[Channel].tcr); m_dmac[Channel].tcr &= 0xffffff; } template READ32_MEMBER(chcr_r) { return m_dmac[Channel].chcr; } template WRITE32_MEMBER(chcr_w) { uint32_t old; old = m_dmac[Channel].chcr; COMBINE_DATA(&m_dmac[Channel].chcr); m_dmac[Channel].chcr = (data & ~2) | (old & m_dmac[Channel].chcr & 2); sh2_dmac_check(Channel); } READ32_MEMBER( dmaor_r ) { return m_dmaor & 0xf; } WRITE32_MEMBER( dmaor_w ) { if(ACCESSING_BITS_0_7) { uint8_t old; old = m_dmaor & 0xf; m_dmaor = (data & ~6) | (old & m_dmaor & 6); sh2_dmac_check(0); sh2_dmac_check(1); } } // WTC DECLARE_READ16_MEMBER( wtcnt_r ); DECLARE_WRITE16_MEMBER( wtcnt_w ); DECLARE_READ16_MEMBER( rstcsr_r ); DECLARE_WRITE16_MEMBER( rstcsr_w ); // misc DECLARE_READ16_MEMBER( fmr_sbycr_r ); DECLARE_WRITE16_MEMBER( fmr_sbycr_w ); DECLARE_READ8_MEMBER( ccr_r ); DECLARE_WRITE8_MEMBER( ccr_w ); // BSC DECLARE_READ32_MEMBER( bcr1_r ); DECLARE_WRITE32_MEMBER( bcr1_w ); DECLARE_READ32_MEMBER( bcr2_r ); DECLARE_WRITE32_MEMBER( bcr2_w ); DECLARE_READ32_MEMBER( wcr_r ); DECLARE_WRITE32_MEMBER( wcr_w ); DECLARE_READ32_MEMBER( mcr_r ); DECLARE_WRITE32_MEMBER( mcr_w ); DECLARE_READ32_MEMBER( rtcsr_r ); DECLARE_WRITE32_MEMBER( rtcsr_w ); DECLARE_READ32_MEMBER( rtcor_r ); DECLARE_WRITE32_MEMBER( rtcor_w ); DECLARE_READ32_MEMBER( rtcnt_r ); DECLARE_WRITE32_MEMBER( rtcnt_w ); virtual void set_frt_input(int state) override; void sh2_notify_dma_data_available(); void func_fastirq(); void sh7604_map(address_map &map); protected: sh2_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, int cpu_type,address_map_constructor internal_map, int addrlines); // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_stop() override; // device_execute_interface overrides virtual uint32_t execute_min_cycles() const noexcept override { return 1; } virtual uint32_t execute_max_cycles() const noexcept override { return 4; } virtual uint32_t execute_input_lines() const noexcept override { return 16; } virtual uint32_t execute_default_irq_vector(int inputnum) const noexcept override { return 0; } virtual bool execute_input_edge_triggered(int inputnum) const noexcept override { return inputnum == INPUT_LINE_NMI; } virtual void execute_run() override; virtual void execute_set_input(int inputnum, int state) override; // device_memory_interface overrides virtual space_config_vector memory_space_config() const override; // device_state_interface overrides virtual void state_import(const device_state_entry &entry) override; virtual void state_string_export(const device_state_entry &entry, std::string &str) const override; // device_disasm_interface overrides virtual std::unique_ptr create_disassembler() override; address_space *m_decrypted_program; private: address_space_config m_program_config, m_decrypted_program_config; uint32_t m_cpu_off = 0; uint32_t m_test_irq = 0; int8_t m_irq_line_state[17]; address_space *m_internal; // SCI uint8_t m_smr = 0, m_brr = 0, m_scr = 0, m_tdr = 0, m_ssr = 0; // FRT / FRC uint8_t m_tier = 0, m_ftcsr = 0, m_frc_tcr = 0, m_tocr = 0; uint16_t m_frc = 0; uint16_t m_ocra = 0, m_ocrb = 0, m_frc_icr = 0; // INTC struct { uint8_t frc = 0; uint8_t sci = 0; uint8_t divu = 0; uint8_t dmac = 0; uint8_t wdt = 0; } m_irq_level; struct { uint8_t fic = 0; uint8_t foc = 0; uint8_t fov = 0; uint8_t divu = 0; uint8_t dmac[2] = { 0, 0 }; } m_irq_vector; uint16_t m_ipra = 0, m_iprb = 0; uint16_t m_vcra = 0, m_vcrb = 0, m_vcrc = 0, m_vcrd = 0, m_vcrwdt = 0, m_vcrdiv = 0, m_intc_icr = 0, m_vcrdma[2] = { 0, 0, }; bool m_vecmd = false, m_nmie = false; // DIVU bool m_divu_ovf = false, m_divu_ovfie = false; uint32_t m_dvsr = 0, m_dvdntl = 0, m_dvdnth = 0; // WTC uint8_t m_wtcnt = 0, m_wtcsr = 0; uint8_t m_rstcsr = 0; uint16_t m_wtcw[2] = { 0, 0 }; // DMAC struct { uint8_t drcr = 0; uint32_t sar = 0; uint32_t dar = 0; uint32_t tcr = 0; uint32_t chcr = 0; } m_dmac[2]; uint8_t m_dmaor = 0; // misc uint8_t m_sbycr = 0, m_ccr = 0; // BSC uint32_t m_bcr1 = 0, m_bcr2 = 0, m_wcr = 0, m_mcr = 0, m_rtcsr = 0, m_rtcor = 0, m_rtcnt = 0; int8_t m_nmi_line_state = 0; uint64_t m_frc_base = 0; int m_frt_input = 0; int m_internal_irq_vector = 0; emu_timer *m_timer = nullptr; emu_timer *m_wdtimer = nullptr; emu_timer *m_dma_current_active_timer[2] { nullptr, nullptr }; int m_dma_timer_active[2] = { 0, 0 }; uint8_t m_dma_irq[2] = { 0, 0 }; int m_active_dma_incs[2] = { 0, 0 }; int m_active_dma_incd[2] = { 0, 0 }; int m_active_dma_size[2] = { 0, 0 }; int m_active_dma_steal[2] = { 0, 0 }; uint32_t m_active_dma_src[2] = { 0, 0 }; uint32_t m_active_dma_dst[2] = { 0, 0 }; uint32_t m_active_dma_count[2] = { 0, 0 }; int m_is_slave = 0; dma_kludge_delegate m_dma_kludge_cb; dma_fifo_data_available_delegate m_dma_fifo_data_available_cb; ftcsr_read_delegate m_ftcsr_read_cb; std::unique_ptr m_drcfe; /* pointer to the DRC front-end state */ uint32_t m_debugger_temp = 0; virtual uint8_t RB(offs_t A) override; virtual uint16_t RW(offs_t A) override; virtual uint32_t RL(offs_t A) override; virtual void WB(offs_t A, uint8_t V) override; virtual void WW(offs_t A, uint16_t V) override; virtual void WL(offs_t A, uint32_t V) override; virtual void LDCMSR(const uint16_t opcode) override; virtual void LDCSR(const uint16_t opcode) override; virtual void TRAPA(uint32_t i) override; virtual void RTE() override; virtual void ILLEGAL() override; virtual void execute_one_f000(uint16_t opcode) override; TIMER_CALLBACK_MEMBER( sh2_timer_callback ); TIMER_CALLBACK_MEMBER( sh2_wdtimer_callback ); TIMER_CALLBACK_MEMBER( sh2_dma_current_active_callback ); void sh2_timer_resync(); void sh2_timer_activate(); void sh2_wtcnt_recalc(); void sh2_wdt_activate(); void sh2_do_dma(int dmach); virtual void sh2_exception(const char *message, int irqline) override; void sh2_dmac_check(int dma); void sh2_recalc_irq(); virtual void init_drc_frontend() override; virtual const opcode_desc* get_desclist(offs_t pc) override; virtual void generate_update_cycles(drcuml_block &block, compiler_state &compiler, uml::parameter param, bool allow_exception) override; virtual void static_generate_entry_point() override; virtual void static_generate_memory_accessor(int size, int iswrite, const char *name, uml::code_handle *&handleptr) override; }; class sh2a_device : public sh2_device { public: // construction/destruction sh2a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); DECLARE_READ32_MEMBER(dma_sar0_r); DECLARE_WRITE32_MEMBER(dma_sar0_w); DECLARE_READ32_MEMBER(dma_dar0_r); DECLARE_WRITE32_MEMBER(dma_dar0_w); DECLARE_READ16_MEMBER(dmaor_r); DECLARE_WRITE16_MEMBER(dmaor_w); DECLARE_READ16_MEMBER(dma_tcr0_r); DECLARE_WRITE16_MEMBER(dma_tcr0_w); DECLARE_READ16_MEMBER(dma_chcr0_r); DECLARE_WRITE16_MEMBER(dma_chcr0_w); DECLARE_READ16_MEMBER(sh7021_r); DECLARE_WRITE16_MEMBER(sh7021_w); void sh7032_dma_exec(int ch); void sh7021_map(address_map &map); private: uint16_t m_sh7021_regs[0x200]; struct { uint32_t sar = 0; /**< Source Address Register */ uint32_t dar = 0; /**< Destination Address Register */ uint16_t tcr = 0; /**< Transfer Count Register */ uint16_t chcr = 0; /**< Channel Control Register */ } m_dma[4]; uint16_t m_dmaor = 0; /**< DMA Operation Register (status flags) */ }; class sh1_device : public sh2_device { public: // construction/destruction sh1_device(const machine_config &mconfig, const char *_tag, device_t *_owner, uint32_t _clock); DECLARE_READ16_MEMBER(sh7032_r); DECLARE_WRITE16_MEMBER(sh7032_w); void sh7032_map(address_map &map); private: uint16_t m_sh7032_regs[0x200]; }; class sh2_frontend : public sh_frontend { public: sh2_frontend(sh_common_execution *device, uint32_t window_start, uint32_t window_end, uint32_t max_sequence); protected: private: virtual bool describe_group_15(opcode_desc &desc, const opcode_desc *prev, uint16_t opcode) override; }; DECLARE_DEVICE_TYPE(SH1, sh1_device) DECLARE_DEVICE_TYPE(SH2, sh2_device) DECLARE_DEVICE_TYPE(SH2A, sh2a_device) #endif // MAME_CPU_SH2_SH2_H