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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
#pragma once
#ifndef __MINX_H__
#define __MINX_H__
enum
{
MINX_PC=1, MINX_SP, MINX_BA, MINX_HL, MINX_X, MINX_Y,
MINX_U, MINX_V, MINX_F, MINX_E, MINX_N, MINX_I,
MINX_XI, MINX_YI
};
class minx_cpu_device : public cpu_device
{
public:
// construction/destruction
minx_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_execute_interface overrides
virtual UINT32 execute_min_cycles() const override { return 1; }
virtual UINT32 execute_max_cycles() const override { return 4; }
virtual UINT32 execute_input_lines() const override { return 1; }
virtual void execute_run() override;
virtual void execute_set_input(int inputnum, int state) override;
// device_memory_interface overrides
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const override { return (spacenum == AS_PROGRAM) ? &m_program_config : nullptr; }
// device_state_interface overrides
virtual void state_string_export(const device_state_entry &entry, std::string &str) const override;
// device_disasm_interface overrides
virtual UINT32 disasm_min_opcode_bytes() const override { return 1; }
virtual UINT32 disasm_max_opcode_bytes() const override { return 5; }
virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options) override;
private:
address_space_config m_program_config;
UINT16 m_PC;
UINT16 m_SP;
UINT16 m_BA;
UINT16 m_HL;
UINT16 m_X;
UINT16 m_Y;
UINT8 m_U;
UINT8 m_V;
UINT8 m_F;
UINT8 m_E;
UINT8 m_N;
UINT8 m_I;
UINT8 m_XI;
UINT8 m_YI;
UINT8 m_halted;
UINT8 m_interrupt_pending;
address_space *m_program;
int m_icount;
// For debugger
UINT32 m_curpc;
UINT16 m_flags;
UINT16 rd16( UINT32 offset );
void wr16( UINT32 offset, UINT16 data );
UINT8 rdop();
UINT16 rdop16();
UINT8 ADD8( UINT8 arg1, UINT8 arg2 );
UINT16 ADD16( UINT16 arg1, UINT16 arg2 );
UINT8 ADDC8( UINT8 arg1, UINT8 arg2 );
UINT16 ADDC16( UINT16 arg1, UINT16 arg2 );
UINT8 INC8( UINT8 arg );
UINT16 INC16( UINT16 arg );
UINT8 SUB8( UINT8 arg1, UINT8 arg2 );
UINT16 SUB16( UINT16 arg1, UINT16 arg2 );
UINT8 SUBC8( UINT8 arg1, UINT8 arg2 );
UINT16 SUBC16( UINT16 arg1, UINT16 arg2 );
UINT8 DEC8( UINT8 arg );
UINT16 DEC16( UINT16 arg );
UINT8 AND8( UINT8 arg1, UINT8 arg2 );
UINT8 OR8( UINT8 arg1, UINT8 arg2 );
UINT8 XOR8( UINT8 arg1, UINT8 arg2 );
UINT8 NOT8( UINT8 arg );
UINT8 NEG8( UINT8 arg );
UINT8 SAL8( UINT8 arg );
UINT8 SAR8( UINT8 arg );
UINT8 SHL8( UINT8 arg );
UINT8 SHR8( UINT8 arg );
UINT8 ROLC8( UINT8 arg );
UINT8 RORC8( UINT8 arg );
UINT8 ROL8( UINT8 arg );
UINT8 ROR8( UINT8 arg );
void PUSH8( UINT8 arg );
void PUSH16( UINT16 arg );
UINT8 POP8();
UINT16 POP16();
void JMP( UINT16 arg );
void CALL( UINT16 arg );
void execute_one();
void execute_one_ce();
void execute_one_cf();
static const int insnminx_cycles[256];
static const int insnminx_cycles_CE[256];
static const int insnminx_cycles_CF[256];
};
extern const device_type MINX;
#endif /* __MINX_H__ */
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