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-rw-r--r--src/devices/cpu/nios2/nios2.h51
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diff --git a/src/devices/cpu/nios2/nios2.h b/src/devices/cpu/nios2/nios2.h
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+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_CPU_NIOS2_NIOS2_H
+#define MAME_CPU_NIOS2_NIOS2_H
+
+#pragma once
+
+class nios2_device : public cpu_device
+{
+public:
+ enum {
+ NIOS2_R1 = 1, NIOS2_R2, NIOS2_R3, NIOS2_R4, NIOS2_R5, NIOS2_R6, NIOS2_R7,
+ NIOS2_R8, NIOS2_R9, NIOS2_R10, NIOS2_R11, NIOS2_R12, NIOS2_R13, NIOS2_R14, NIOS2_R15,
+ NIOS2_R16, NIOS2_R17, NIOS2_R18, NIOS2_R19, NIOS2_R20, NIOS2_R21, NIOS2_R22, NIOS2_R23,
+ NIOS2_R24, NIOS2_R25, NIOS2_R26, NIOS2_R27, NIOS2_R28, NIOS2_R29, NIOS2_R30, NIOS2_R31,
+ NIOS2_PC,
+ };
+
+ // construction/destruction
+ nios2_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // device_execute_interface overrides
+ virtual void execute_run() override;
+
+ // device_disasm_interface overrides
+ virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
+
+ // device_memory_interface overrides
+ virtual space_config_vector memory_space_config() const override;
+
+private:
+ // address space
+ address_space_config m_program_config;
+ memory_access<32, 2, 0, ENDIANNESS_LITTLE>::cache m_cache;
+
+ // internal registers
+ u32 m_gpr[32];
+ u32 m_pc;
+ s32 m_icount;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(NIOS2, nios2_device)
+
+#endif // MAME_CPU_NIOS2_NIOS2_H