diff options
Diffstat (limited to 'src/devices/cpu/gigatron/gigatron.h')
-rw-r--r-- | src/devices/cpu/gigatron/gigatron.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/devices/cpu/gigatron/gigatron.h b/src/devices/cpu/gigatron/gigatron.h new file mode 100644 index 00000000000..4f4b73da26c --- /dev/null +++ b/src/devices/cpu/gigatron/gigatron.h @@ -0,0 +1,62 @@ +// license:BSD-3-Clause +// copyright-holders:Sterophonick +/***************************************************************************** + * + * Skeleton Device for Gigatron CPU Core + * + *****************************************************************************/ + +#ifndef MAME_CPU_GTRON_H +#define MAME_CPU_GTRON_H + +#pragma once + +enum +{ + GTRON_R0=1, GTRON_R1, GTRON_R2, GTRON_R3, + GTRON_R4, GTRON_R5, GTRON_R6, GTRON_R7 +}; + + +class gigatron_cpu_device : public cpu_device +{ +public: + // construction/destruction + gigatron_cpu_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_min_cycles() const noexcept override { return 1; } + virtual uint32_t execute_max_cycles() const noexcept override { return 7; } + virtual uint32_t execute_input_lines() const noexcept override { return 0; } + virtual void execute_run() override; + virtual void execute_set_input(int inputnum, int state) override; + + // device_state_interface overrides + virtual void state_string_export(const device_state_entry &entry, std::string &str) const override; + + +private: + address_space_config m_program_config; + + uint8_t m_pc; /* registers */ + uint8_t m_flags; /* flags */ + address_space *m_program; + address_space *m_data; + int m_icount; + + void gigatron_illegal(); + +}; + + +DECLARE_DEVICE_TYPE(GTRON, gigatron_cpu_device) + + + +#endif // MAME_CPU_GTRON_H + |