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Diffstat (limited to 'src/devices/cpu/z80/z80.h')
-rw-r--r--src/devices/cpu/z80/z80.h368
1 files changed, 130 insertions, 238 deletions
diff --git a/src/devices/cpu/z80/z80.h b/src/devices/cpu/z80/z80.h
index 55de3771f7a..3498f100dcd 100644
--- a/src/devices/cpu/z80/z80.h
+++ b/src/devices/cpu/z80/z80.h
@@ -9,12 +9,10 @@
enum
{
- NSC800_RSTA = INPUT_LINE_IRQ0 + 1,
- NSC800_RSTB,
- NSC800_RSTC,
- Z80_INPUT_LINE_WAIT,
- Z80_INPUT_LINE_BOGUSWAIT, /* WAIT pin implementation used to be nonexistent, please remove this when all drivers are updated with Z80_INPUT_LINE_WAIT */
- Z80_INPUT_LINE_BUSRQ
+ Z80_INPUT_LINE_WAIT = INPUT_LINE_IRQ0 + 1,
+ Z80_INPUT_LINE_BUSRQ,
+
+ Z80_INPUT_LINE_MAX
};
enum
@@ -30,283 +28,177 @@ enum
class z80_device : public cpu_device, public z80_daisy_chain_interface
{
public:
- z80_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+ z80_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ void z80_set_m1_cycles(u8 m1_cycles) { m_m1_cycles = m1_cycles; }
+ void z80_set_memrq_cycles(u8 memrq_cycles) { m_memrq_cycles = memrq_cycles; }
+ void z80_set_iorq_cycles(u8 iorq_cycles) { m_iorq_cycles = iorq_cycles; }
- void z80_set_cycle_tables(const uint8_t *op, const uint8_t *cb, const uint8_t *ed, const uint8_t *xy, const uint8_t *xycb, const uint8_t *ex);
template <typename... T> void set_memory_map(T &&... args) { set_addrmap(AS_PROGRAM, std::forward<T>(args)...); }
template <typename... T> void set_m1_map(T &&... args) { set_addrmap(AS_OPCODES, std::forward<T>(args)...); }
template <typename... T> void set_io_map(T &&... args) { set_addrmap(AS_IO, std::forward<T>(args)...); }
auto irqack_cb() { return m_irqack_cb.bind(); }
auto refresh_cb() { return m_refresh_cb.bind(); }
+ auto nomreq_cb() { return m_nomreq_cb.bind(); }
auto halt_cb() { return m_halt_cb.bind(); }
+ auto busack_cb() { return m_busack_cb.bind(); }
-protected:
- z80_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
-
- // device-level overrides
- virtual void device_start() override;
- virtual void device_reset() override;
+ // output pins state
+ int halt_r() { return m_halt; }
+ int busack_r() { return m_busack_state; }
- // device_execute_interface overrides
- virtual uint32_t execute_min_cycles() const override { return 2; }
- virtual uint32_t execute_max_cycles() const override { return 16; }
- virtual uint32_t execute_input_lines() const override { return 4; }
- virtual uint32_t execute_default_irq_vector(int inputnum) const override { return 0xff; }
- virtual bool execute_input_edge_triggered(int inputnum) const override { return inputnum == INPUT_LINE_NMI; }
+protected:
+ z80_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock);
+
+ // device_t implementation
+ virtual void device_validity_check(validity_checker &valid) const override;
+ virtual void device_start() override ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+
+ // device_execute_interface implementation
+ virtual bool cpu_is_interruptible() const override { return true; }
+ virtual u32 execute_min_cycles() const noexcept override { return 1; }
+ virtual u32 execute_max_cycles() const noexcept override { return 16; }
+ virtual u32 execute_default_irq_vector(int inputnum) const noexcept override { return 0xff; }
+ 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
+ // device_memory_interface implementation
virtual space_config_vector memory_space_config() const override;
- // device_state_interface overrides
+ // device_state_interface implementation
virtual void state_import(const device_state_entry &entry) override;
virtual void state_export(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
+ // device_disasm_interface implementation
virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
-#undef PROTOTYPES
-#define PROTOTYPES(prefix) \
- void prefix##_00(); void prefix##_01(); void prefix##_02(); void prefix##_03(); \
- void prefix##_04(); void prefix##_05(); void prefix##_06(); void prefix##_07(); \
- void prefix##_08(); void prefix##_09(); void prefix##_0a(); void prefix##_0b(); \
- void prefix##_0c(); void prefix##_0d(); void prefix##_0e(); void prefix##_0f(); \
- void prefix##_10(); void prefix##_11(); void prefix##_12(); void prefix##_13(); \
- void prefix##_14(); void prefix##_15(); void prefix##_16(); void prefix##_17(); \
- void prefix##_18(); void prefix##_19(); void prefix##_1a(); void prefix##_1b(); \
- void prefix##_1c(); void prefix##_1d(); void prefix##_1e(); void prefix##_1f(); \
- void prefix##_20(); void prefix##_21(); void prefix##_22(); void prefix##_23(); \
- void prefix##_24(); void prefix##_25(); void prefix##_26(); void prefix##_27(); \
- void prefix##_28(); void prefix##_29(); void prefix##_2a(); void prefix##_2b(); \
- void prefix##_2c(); void prefix##_2d(); void prefix##_2e(); void prefix##_2f(); \
- void prefix##_30(); void prefix##_31(); void prefix##_32(); void prefix##_33(); \
- void prefix##_34(); void prefix##_35(); void prefix##_36(); void prefix##_37(); \
- void prefix##_38(); void prefix##_39(); void prefix##_3a(); void prefix##_3b(); \
- void prefix##_3c(); void prefix##_3d(); void prefix##_3e(); void prefix##_3f(); \
- void prefix##_40(); void prefix##_41(); void prefix##_42(); void prefix##_43(); \
- void prefix##_44(); void prefix##_45(); void prefix##_46(); void prefix##_47(); \
- void prefix##_48(); void prefix##_49(); void prefix##_4a(); void prefix##_4b(); \
- void prefix##_4c(); void prefix##_4d(); void prefix##_4e(); void prefix##_4f(); \
- void prefix##_50(); void prefix##_51(); void prefix##_52(); void prefix##_53(); \
- void prefix##_54(); void prefix##_55(); void prefix##_56(); void prefix##_57(); \
- void prefix##_58(); void prefix##_59(); void prefix##_5a(); void prefix##_5b(); \
- void prefix##_5c(); void prefix##_5d(); void prefix##_5e(); void prefix##_5f(); \
- void prefix##_60(); void prefix##_61(); void prefix##_62(); void prefix##_63(); \
- void prefix##_64(); void prefix##_65(); void prefix##_66(); void prefix##_67(); \
- void prefix##_68(); void prefix##_69(); void prefix##_6a(); void prefix##_6b(); \
- void prefix##_6c(); void prefix##_6d(); void prefix##_6e(); void prefix##_6f(); \
- void prefix##_70(); void prefix##_71(); void prefix##_72(); void prefix##_73(); \
- void prefix##_74(); void prefix##_75(); void prefix##_76(); void prefix##_77(); \
- void prefix##_78(); void prefix##_79(); void prefix##_7a(); void prefix##_7b(); \
- void prefix##_7c(); void prefix##_7d(); void prefix##_7e(); void prefix##_7f(); \
- void prefix##_80(); void prefix##_81(); void prefix##_82(); void prefix##_83(); \
- void prefix##_84(); void prefix##_85(); void prefix##_86(); void prefix##_87(); \
- void prefix##_88(); void prefix##_89(); void prefix##_8a(); void prefix##_8b(); \
- void prefix##_8c(); void prefix##_8d(); void prefix##_8e(); void prefix##_8f(); \
- void prefix##_90(); void prefix##_91(); void prefix##_92(); void prefix##_93(); \
- void prefix##_94(); void prefix##_95(); void prefix##_96(); void prefix##_97(); \
- void prefix##_98(); void prefix##_99(); void prefix##_9a(); void prefix##_9b(); \
- void prefix##_9c(); void prefix##_9d(); void prefix##_9e(); void prefix##_9f(); \
- void prefix##_a0(); void prefix##_a1(); void prefix##_a2(); void prefix##_a3(); \
- void prefix##_a4(); void prefix##_a5(); void prefix##_a6(); void prefix##_a7(); \
- void prefix##_a8(); void prefix##_a9(); void prefix##_aa(); void prefix##_ab(); \
- void prefix##_ac(); void prefix##_ad(); void prefix##_ae(); void prefix##_af(); \
- void prefix##_b0(); void prefix##_b1(); void prefix##_b2(); void prefix##_b3(); \
- void prefix##_b4(); void prefix##_b5(); void prefix##_b6(); void prefix##_b7(); \
- void prefix##_b8(); void prefix##_b9(); void prefix##_ba(); void prefix##_bb(); \
- void prefix##_bc(); void prefix##_bd(); void prefix##_be(); void prefix##_bf(); \
- void prefix##_c0(); void prefix##_c1(); void prefix##_c2(); void prefix##_c3(); \
- void prefix##_c4(); void prefix##_c5(); void prefix##_c6(); void prefix##_c7(); \
- void prefix##_c8(); void prefix##_c9(); void prefix##_ca(); void prefix##_cb(); \
- void prefix##_cc(); void prefix##_cd(); void prefix##_ce(); void prefix##_cf(); \
- void prefix##_d0(); void prefix##_d1(); void prefix##_d2(); void prefix##_d3(); \
- void prefix##_d4(); void prefix##_d5(); void prefix##_d6(); void prefix##_d7(); \
- void prefix##_d8(); void prefix##_d9(); void prefix##_da(); void prefix##_db(); \
- void prefix##_dc(); void prefix##_dd(); void prefix##_de(); void prefix##_df(); \
- void prefix##_e0(); void prefix##_e1(); void prefix##_e2(); void prefix##_e3(); \
- void prefix##_e4(); void prefix##_e5(); void prefix##_e6(); void prefix##_e7(); \
- void prefix##_e8(); void prefix##_e9(); void prefix##_ea(); void prefix##_eb(); \
- void prefix##_ec(); void prefix##_ed(); void prefix##_ee(); void prefix##_ef(); \
- void prefix##_f0(); void prefix##_f1(); void prefix##_f2(); void prefix##_f3(); \
- void prefix##_f4(); void prefix##_f5(); void prefix##_f6(); void prefix##_f7(); \
- void prefix##_f8(); void prefix##_f9(); void prefix##_fa(); void prefix##_fb(); \
- void prefix##_fc(); void prefix##_fd(); void prefix##_fe(); void prefix##_ff();
-
void illegal_1();
void illegal_2();
-
- PROTOTYPES(op)
- PROTOTYPES(cb)
- PROTOTYPES(dd)
- PROTOTYPES(ed)
- PROTOTYPES(fd)
- PROTOTYPES(xycb)
+ u8 flags_szyxc(u16 value);
+ template <u8 Bit, bool State> void set_service_attention() { static_assert(Bit < 8, "out of range bit index"); if (State) m_service_attention |= (1 << Bit); else m_service_attention &= ~(1 << Bit); };
+ template <u8 Bit> bool get_service_attention() { static_assert(Bit < 8, "out of range bit index"); return m_service_attention & (1 << Bit); };
void halt();
void leave_halt();
- uint8_t in(uint16_t port);
- void out(uint16_t port, uint8_t value);
- uint8_t rm(uint16_t addr);
- void rm16(uint16_t addr, PAIR &r);
- void wm(uint16_t addr, uint8_t value);
- void wm16(uint16_t addr, PAIR &r);
- uint8_t rop();
- uint8_t arg();
- uint16_t arg16();
- void eax();
- void eay();
- void pop(PAIR &r);
- void push(PAIR &r);
- void jp(void);
- void jp_cond(bool cond);
- void jr();
- void jr_cond(bool cond, uint8_t opcode);
- void call();
- void call_cond(bool cond, uint8_t opcode);
- void ret_cond(bool cond, uint8_t opcode);
- void retn();
- void reti();
- void ld_r_a();
- void ld_a_r();
- void ld_i_a();
- void ld_a_i();
- void rst(uint16_t addr);
- uint8_t inc(uint8_t value);
- uint8_t dec(uint8_t value);
+ void inc(u8 &r);
+ void dec(u8 &r);
void rlca();
void rrca();
void rla();
void rra();
- void rrd();
- void rld();
- void add_a(uint8_t value);
- void adc_a(uint8_t value);
- void sub(uint8_t value);
- void sbc_a(uint8_t value);
+ void add_a(u8 value);
+ void adc_a(u8 value);
+ void sub_a(u8 value);
+ void sbc_a(u8 value);
void neg();
void daa();
- void and_a(uint8_t value);
- void or_a(uint8_t value);
- void xor_a(uint8_t value);
- void cp(uint8_t value);
- void ex_af();
- void ex_de_hl();
+ void and_a(u8 value);
+ void or_a(u8 value);
+ void xor_a(u8 value);
+ void cp(u8 value);
void exx();
- void ex_sp(PAIR &r);
- void add16(PAIR &dr, PAIR &sr);
- void adc_hl(PAIR &r);
- void sbc_hl(PAIR &r);
- uint8_t rlc(uint8_t value);
- uint8_t rrc(uint8_t value);
- uint8_t rl(uint8_t value);
- uint8_t rr(uint8_t value);
- uint8_t sla(uint8_t value);
- uint8_t sra(uint8_t value);
- uint8_t sll(uint8_t value);
- uint8_t srl(uint8_t value);
- void bit(int bit, uint8_t value);
- void bit_hl(int bit, uint8_t value);
- void bit_xy(int bit, uint8_t value);
- uint8_t res(int bit, uint8_t value);
- uint8_t set(int bit, uint8_t value);
- void ldi();
- void cpi();
- void ini();
- void outi();
- void ldd();
- void cpd();
- void ind();
- void outd();
- void ldir();
- void cpir();
- void inir();
- void otir();
- void lddr();
- void cpdr();
- void indr();
- void otdr();
+ u8 rlc(u8 value);
+ u8 rrc(u8 value);
+ u8 rl(u8 value);
+ u8 rr(u8 value);
+ u8 sla(u8 value);
+ u8 sra(u8 value);
+ u8 sll(u8 value);
+ u8 srl(u8 value);
+ void bit(int bit, u8 value);
+ void bit_hl(int bit, u8 value);
+ void bit_xy(int bit, u8 value);
+ u8 res(int bit, u8 value);
+ u8 set(int bit, u8 value);
void ei();
+ void set_f(u8 f);
+ void block_io_interrupted_flags();
- void take_interrupt();
- void take_nmi();
+ virtual u8 data_read(u16 addr);
+ virtual void data_write(u16 addr, u8 value);
+ virtual u8 stack_read(u16 addr) { return data_read(addr); }
+ virtual void stack_write(u16 addr, u8 value) { return data_write(addr, value); }
+ virtual u8 opcode_read();
+ virtual u8 arg_read();
// address spaces
const address_space_config m_program_config;
const address_space_config m_opcodes_config;
const address_space_config m_io_config;
- address_space *m_program;
- address_space *m_opcodes;
- address_space *m_io;
- memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_cache;
- memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_opcodes_cache;
+ memory_access<16, 0, 0, ENDIANNESS_LITTLE>::cache m_args;
+ memory_access<16, 0, 0, ENDIANNESS_LITTLE>::cache m_opcodes;
+ memory_access<16, 0, 0, ENDIANNESS_LITTLE>::specific m_data;
+ memory_access<16, 0, 0, ENDIANNESS_LITTLE>::specific m_io;
+
devcb_write_line m_irqack_cb;
devcb_write8 m_refresh_cb;
+ devcb_write8 m_nomreq_cb;
devcb_write_line m_halt_cb;
-
- PAIR m_prvpc;
- PAIR m_pc;
- PAIR m_sp;
- PAIR m_af;
- PAIR m_bc;
- PAIR m_de;
- PAIR m_hl;
- PAIR m_ix;
- PAIR m_iy;
- PAIR m_wz;
- PAIR m_af2;
- PAIR m_bc2;
- PAIR m_de2;
- PAIR m_hl2;
- uint8_t m_r;
- uint8_t m_r2;
- uint8_t m_iff1;
- uint8_t m_iff2;
- uint8_t m_halt;
- uint8_t m_im;
- uint8_t m_i;
- uint8_t m_nmi_state; /* nmi line state */
- uint8_t m_nmi_pending; /* nmi pending */
- uint8_t m_irq_state; /* irq line state */
- int m_wait_state; // wait line state
- int m_busrq_state; // bus request line state
- uint8_t m_after_ei; /* are we in the EI shadow? */
- uint8_t m_after_ldair; /* same, but for LD A,I or LD A,R */
- uint32_t m_ea;
-
- int m_icount;
- uint8_t m_rtemp;
- const uint8_t * m_cc_op;
- const uint8_t * m_cc_cb;
- const uint8_t * m_cc_ed;
- const uint8_t * m_cc_xy;
- const uint8_t * m_cc_xycb;
- const uint8_t * m_cc_ex;
+ devcb_write_line m_busack_cb;
+
+ static constexpr u8 SA_BUSRQ = 0;
+ static constexpr u8 SA_BUSACK = 1;
+ static constexpr u8 SA_NMI_PENDING = 2;
+ static constexpr u8 SA_IRQ_ON = 3;
+ static constexpr u8 SA_HALT = 4;
+ static constexpr u8 SA_AFTER_EI = 5;
+ static constexpr u8 SA_AFTER_LDAIR = 6;
+ static constexpr u8 SA_NSC800_IRQ_ON = 7;
+ u8 m_service_attention; // bitmap for required handling in service step
+
+ PAIR16 m_prvpc;
+ PAIR16 m_pc;
+ PAIR16 m_sp;
+ PAIR16 m_af;
+ PAIR16 m_bc;
+ PAIR16 m_de;
+ PAIR16 m_hl;
+ PAIR16 m_ix;
+ PAIR16 m_iy;
+ PAIR16 m_wz;
+ PAIR16 m_af2;
+ PAIR16 m_bc2;
+ PAIR16 m_de2;
+ PAIR16 m_hl2;
+ u8 m_qtemp;
+ u8 m_q;
+ u8 m_r;
+ u8 m_r2;
+ u8 m_iff1;
+ u8 m_iff2;
+ u8 m_halt;
+ u8 m_im;
+ u8 m_i;
+ u8 m_nmi_state; // nmi pin state
+ u8 m_irq_state; // irq pin state
+ int m_wait_state; // wait pin state
+ int m_busrq_state; // bus request pin state
+ u8 m_busack_state; // bus acknowledge pin state
+ u16 m_ea;
+
+ int m_icount;
+ int m_tmp_irq_vector;
+ PAIR16 m_shared_data;
+ PAIR16 m_shared_data2;
+ u8 m_rtemp;
+
+ u32 m_ref;
+ u8 m_m1_cycles;
+ u8 m_memrq_cycles;
+ u8 m_iorq_cycles;
+
+ static bool tables_initialised;
+ static u8 SZ[0x100]; // zero and sign flags
+ static u8 SZ_BIT[0x100]; // zero, sign and parity/overflow (=zero) flags for BIT opcode
+ static u8 SZP[0x100]; // zero, sign and parity flags
+ static u8 SZHV_inc[0x100]; // zero, sign, half carry and overflow flags INC r8
+ static u8 SZHV_dec[0x100]; // zero, sign, half carry and overflow flags DEC r8
};
DECLARE_DEVICE_TYPE(Z80, z80_device)
-class nsc800_device : public z80_device
-{
-public:
- nsc800_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
-
-protected:
- // device-level overrides
- virtual void device_start() override;
- virtual void device_reset() override;
-
- // device_execute_interface overrides
- virtual uint32_t execute_input_lines() const override { return 7; }
- virtual void execute_run() override;
- virtual void execute_set_input(int inputnum, int state) override;
-
- void take_interrupt_nsc800();
- uint8_t m_nsc800_irq_state[4]; /* state of NSC800 restart interrupts A, B, C */
-};
-
-DECLARE_DEVICE_TYPE(NSC800, nsc800_device)
-
#endif // MAME_CPU_Z80_Z80_H