diff options
Diffstat (limited to 'src/devices/cpu/tms1000/tms1k_base.h')
-rw-r--r-- | src/devices/cpu/tms1000/tms1k_base.h | 93 |
1 files changed, 49 insertions, 44 deletions
diff --git a/src/devices/cpu/tms1000/tms1k_base.h b/src/devices/cpu/tms1000/tms1k_base.h index 7ddff2bb68f..b5e75ec77d2 100644 --- a/src/devices/cpu/tms1000/tms1k_base.h +++ b/src/devices/cpu/tms1000/tms1k_base.h @@ -38,6 +38,9 @@ #define MCFG_TMS1XXX_POWER_OFF_CB(_devcb) \ devcb = &tms1k_base_device::set_power_off_callback(*device, DEVCB_##_devcb); +// HALT input pin on CMOS chips (use set_input_line) +#define TMS1XXX_INPUT_LINE_HALT 0 + // pinout reference @@ -105,6 +108,7 @@ protected: virtual u32 execute_min_cycles() const override { return 1; } virtual u32 execute_max_cycles() const override { return 6; } virtual u32 execute_input_lines() const override { return 1; } + virtual void execute_set_input(int line, int state) override; virtual void execute_run() override; // device_memory_interface overrides @@ -214,50 +218,51 @@ protected: optional_device<pla_device> m_opla; optional_device<pla_device> m_spla; - u8 m_pc; // 6 or 7-bit program counter - u32 m_sr; // 6 or 7-bit subroutine return register(s) - u8 m_pa; // 4-bit page address register - u8 m_pb; // 4-bit page buffer register - u16 m_ps; // 4-bit page subroutine register(s) - u8 m_a; // 4-bit accumulator - u8 m_x; // 2,3,or 4-bit RAM X register - u8 m_y; // 4-bit RAM Y register - u8 m_ca; // chapter address register - u8 m_cb; // chapter buffer register - u16 m_cs; // chapter subroutine register(s) - u16 m_r; - u16 m_o; - u8 m_cki_bus; - u8 m_c4; - u8 m_p; // 4-bit adder p(lus)-input - u8 m_n; // 4-bit adder n(egative)-input - u8 m_adder_out; // adder result - u8 m_carry_in; // adder carry-in bit - u8 m_carry_out; // adder carry-out bit - u8 m_status; - u8 m_status_latch; - u8 m_eac; // end around carry bit - u8 m_clatch; // call latch bit(s) - u8 m_add; // add latch bit - u8 m_bl; // branch latch bit - - u8 m_ram_in; - u8 m_dam_in; - int m_ram_out; // signed! - u8 m_ram_address; - u16 m_rom_address; - u16 m_opcode; - u32 m_fixed; - u32 m_micro; - int m_subcycle; - int m_icount; - u8 m_o_index; - - u8 m_o_pins; // how many O pins - u8 m_r_pins; // how many R pins - u8 m_pc_bits; // how many program counter bits - u8 m_byte_bits; // how many bits per 'byte' - u8 m_x_bits; // how many X register bits + u8 m_pc; // 6 or 7-bit program counter + u32 m_sr; // 6 or 7-bit subroutine return register(s) + u8 m_pa; // 4-bit page address register + u8 m_pb; // 4-bit page buffer register + u16 m_ps; // 4-bit page subroutine register(s) + u8 m_a; // 4-bit accumulator + u8 m_x; // 2,3,or 4-bit RAM X register + u8 m_y; // 4-bit RAM Y register + u8 m_ca; // chapter address register + u8 m_cb; // chapter buffer register + u16 m_cs; // chapter subroutine register(s) + u16 m_r; + u16 m_o; + u8 m_cki_bus; + u8 m_c4; + u8 m_p; // 4-bit adder p(lus)-input + u8 m_n; // 4-bit adder n(egative)-input + u8 m_adder_out; // adder result + u8 m_carry_in; // adder carry-in bit + u8 m_carry_out; // adder carry-out bit + u8 m_status; + u8 m_status_latch; + u8 m_eac; // end around carry bit + u8 m_clatch; // call latch bit(s) + u8 m_add; // add latch bit + u8 m_bl; // branch latch bit + + u8 m_ram_in; + u8 m_dam_in; + int m_ram_out; // signed! + u8 m_ram_address; + u16 m_rom_address; + u16 m_opcode; + u32 m_fixed; + u32 m_micro; + int m_subcycle; + int m_icount; + u8 m_o_index; + bool m_halt; // halt pin state + + u8 m_o_pins; // how many O pins + u8 m_r_pins; // how many R pins + u8 m_pc_bits; // how many program counter bits + u8 m_byte_bits; // how many bits per 'byte' + u8 m_x_bits; // how many X register bits address_space *m_program; address_space *m_data; |