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// license:BSD-3-Clause
// copyright-holders:Peter Trauner
/***************************************************************************
r65c02gk.h
gameking 65c02 with bitwise instructions and wai instruction, additional
interrupt vectors, special vector address base
***************************************************************************/
#ifndef __R65C02GK_H__
#define __R65C02GK_H__
#include "r65c02.h"
class r65c02gk_device : public r65c02_device {
public:
r65c02gk_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
r65c02gk_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
static const disasm_entry disasm_entries[0x100];
virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options) override;
virtual void do_exec_full() override;
virtual void do_exec_partial() override;
enum {
IRQ_GK3A=INPUT_LINE_IRQ0,
IRQ_GK3B,
IRQ_TIMERUSER=INPUT_LINE_IRQ6,
IRQ_INPUTS, //449C,
IRQ_USER, //=INPUT_LINE_IRQ8,
IRQ_TIMER, //=INPUT_LINE_IRQ9,
IRQ_6606,
R65C02GK_IRQ_LINE12 = IRQ_GK3A/*R65C02GK_IRQ_LINE0*/+12,
R65C02GK_NMI_LINE = INPUT_LINE_NMI // >12
// R65C02GK_SET_OVERFLOW = m6502_device::V_LINE,
};
void set_irq_bank(memory_bank *m_bank4000, UINT8 *bank4000_normal, UINT8 *bank4000_irq);
protected:
UINT8 *bank4000_normal, *bank4000_irq;
virtual void device_reset() override;
virtual void execute_set_input(int inputnum, int state) override;
memory_bank *m_bank4000;
#if 0
void prefetch();
void prefetch_noirq();
void prefetch_wai();
#endif
struct InterruptController { // nearly nothing known about it, only enough to get bios working
bool states[13];
int getlevel() { for (int i=12; i>=0; --i) { if (states[i]) return i; } return -1; }
void Reset() { memset(states, 0, sizeof(states)); }
} interrupt_controller;
#define O(o) void o ## _full(); void o ## _partial()
O(brk_c_imp);
O(rti_imp);
O(wai_imp);
// exceptions
O(reset);
};
extern const device_type R65C02GK;
#endif
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