diff options
Diffstat (limited to 'src/devices/cpu/tms7000/tms7000.h')
-rw-r--r-- | src/devices/cpu/tms7000/tms7000.h | 57 |
1 files changed, 40 insertions, 17 deletions
diff --git a/src/devices/cpu/tms7000/tms7000.h b/src/devices/cpu/tms7000/tms7000.h index ef69bdb881e..bd941fbf9ca 100644 --- a/src/devices/cpu/tms7000/tms7000.h +++ b/src/devices/cpu/tms7000/tms7000.h @@ -14,6 +14,33 @@ #include "debugger.h" +// read-only on 70x0 +#define MCFG_TMS7000_IN_PORTA_CB(_devcb) \ + devcb = &tms7000_device::set_port_read_cb(*device, 0, DEVCB_##_devcb); +#define MCFG_TMS7000_OUT_PORTA_CB(_devcb) \ + devcb = &tms7000_device::set_port_write_cb(*device, 0, DEVCB_##_devcb); + +// write-only +#define MCFG_TMS7000_OUT_PORTB_CB(_devcb) \ + devcb = &tms7000_device::set_port_write_cb(*device, 1, DEVCB_##_devcb); + +#define MCFG_TMS7000_IN_PORTC_CB(_devcb) \ + devcb = &tms7000_device::set_port_read_cb(*device, 2, DEVCB_##_devcb); +#define MCFG_TMS7000_OUT_PORTC_CB(_devcb) \ + devcb = &tms7000_device::set_port_write_cb(*device, 2, DEVCB_##_devcb); + +#define MCFG_TMS7000_IN_PORTD_CB(_devcb) \ + devcb = &tms7000_device::set_port_read_cb(*device, 3, DEVCB_##_devcb); +#define MCFG_TMS7000_OUT_PORTD_CB(_devcb) \ + devcb = &tms7000_device::set_port_write_cb(*device, 3, DEVCB_##_devcb); + +// TMS70C46 only +#define MCFG_TMS7000_IN_PORTE_CB(_devcb) \ + devcb = &tms7000_device::set_port_read_cb(*device, 4, DEVCB_##_devcb); +#define MCFG_TMS7000_OUT_PORTE_CB(_devcb) \ + devcb = &tms7000_device::set_port_write_cb(*device, 4, DEVCB_##_devcb); + + enum { TMS7000_PC=1, TMS7000_SP, TMS7000_ST }; enum @@ -23,15 +50,6 @@ enum TMS7000_INT3_LINE }; -enum -{ - TMS7000_PORTA = 0, /* read-only on 70x0 */ - TMS7000_PORTB, /* write-only */ - TMS7000_PORTC, - TMS7000_PORTD, - TMS7000_PORTE /* TMS70C46 only */ -}; - class tms7000_device : public cpu_device { @@ -39,6 +57,12 @@ public: // construction/destruction tms7000_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + // static configuration + template<class Object> + static devcb_base &set_port_read_cb(device_t &device, int p, Object &&object) { return downcast<tms7000_device &>(device).m_port_in_cb[p].set_callback(std::move(object)); } + template<class Object> + static devcb_base &set_port_write_cb(device_t &device, int p, Object &&object) { return downcast<tms7000_device &>(device).m_port_out_cb[p].set_callback(std::move(object)); } + DECLARE_READ8_MEMBER(tms7000_unmapped_rf_r) { if (!machine().side_effect_disabled()) logerror("'%s' (%04X): unmapped_rf_r @ $%04x\n", tag(), m_pc, offset + 0x80); return 0; }; DECLARE_WRITE8_MEMBER(tms7000_unmapped_rf_w) { logerror("'%s' (%04X): unmapped_rf_w @ $%04x = $%02x\n", tag(), m_pc, offset + 0x80, data); }; @@ -82,22 +106,21 @@ protected: virtual void state_string_export(const device_state_entry &entry, std::string &str) const override; // device_disasm_interface overrides - virtual uint32_t disasm_min_opcode_bytes() const override { return 1; } - virtual uint32_t disasm_max_opcode_bytes() const override { return 4; } - virtual offs_t disasm_disassemble(std::ostream &stream, offs_t pc, const uint8_t *oprom, const uint8_t *opram, uint32_t options) override; + virtual util::disasm_interface *create_disassembler() override; uint32_t chip_get_family() const { return m_info_flags & CHIP_FAMILY_MASK; } virtual void execute_one(uint8_t op); address_space_config m_program_config; - address_space_config m_io_config; + + devcb_read8 m_port_in_cb[5]; + devcb_write8 m_port_out_cb[5]; uint32_t m_info_flags; address_space *m_program; - direct_read_data *m_direct; - address_space *m_io; + direct_read_data<0> *m_direct; int m_icount; bool m_irq_state[2]; @@ -319,8 +342,8 @@ public: DECLARE_WRITE8_MEMBER(dockbus_data_w); // access I/O port E if databus is disabled - DECLARE_READ8_MEMBER(e_bus_data_r) { return machine().side_effect_disabled() ? 0xff : ((m_control & 0x20) ? 0xff : m_io->read_byte(TMS7000_PORTE)); } - DECLARE_WRITE8_MEMBER(e_bus_data_w) { if (~m_control & 0x20) m_io->write_byte(TMS7000_PORTE, data); } + DECLARE_READ8_MEMBER(e_bus_data_r) { return machine().side_effect_disabled() ? 0xff : ((m_control & 0x20) ? 0xff : m_port_in_cb[4]()); } + DECLARE_WRITE8_MEMBER(e_bus_data_w) { if (~m_control & 0x20) m_port_out_cb[4](data); } protected: // device-level overrides |