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// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
Motorola M88000 RISC microprocessors
***************************************************************************/
#ifndef MAME_CPU_M88000_M88000_H
#define MAME_CPU_M88000_M88000_H
#pragma once
#include "softfloat3/source/include/softfloat.h"
class mc88100_device : public cpu_device
{
public:
// construction/destruction
mc88100_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_execute_interface overrides
virtual void execute_run() override;
virtual void execute_set_input(int inputnum, int state) 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;
void execute(u32 const inst);
void exception(unsigned vector, bool const trap = false);
// integer helpers
void set_cr(unsigned const cr, u32 const data);
bool condition(unsigned const m5, u32 const src) const;
u32 cmp(u32 const src1, u32 const src2) const;
bool carry(u32 const src1, u32 const src2, u32 const dest) const;
bool overflow(u32 const src1, u32 const src2, u32 const dest) const;
// floating-point helpers
void set_fcr(unsigned const fcr, u32 const data);
u32 fcmp(float64_t const src1, float64_t const src2);
void fset(unsigned const td, unsigned const d, float64_t const data);
private:
// address spaces
address_space_config m_code_config;
address_space_config m_data_config;
memory_access<32, 2, 0, ENDIANNESS_BIG>::cache m_inst_cache;
memory_access<32, 2, 0, ENDIANNESS_BIG>::specific m_data_space;
// register storage
u32 m_xip; // execute instruction pointer
u32 m_nip; // next instruction pointer
u32 m_fip; // fetch instruction pointer
u32 m_sb; // scoreboard
u32 m_r[32];
u32 m_cr[64];
u32 m_fcr[64];
u32 m_xop;
u32 m_nop;
u32 m_fop;
bool m_int_state;
s32 m_icount;
};
// device type declaration
DECLARE_DEVICE_TYPE(MC88100, mc88100_device)
#endif // MAME_CPU_M88000_M88000_H
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