// license:BSD-3-Clause
// copyright-holders:Peter Trauner
/***************************************************************************
r65c02gk.c
Rockwell 65c02gb, additional interrupts, interrupt bankswitching
***************************************************************************/
#include "emu.h"
#include "r65c02gk.h"
const device_type R65C02GK = &device_creator<r65c02gk_device>;
r65c02gk_device::r65c02gk_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
r65c02_device(mconfig, R65C02GK, "R65C02GK", tag, owner, clock, "r65c02gk", __FILE__)
{
}
r65c02gk_device::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) :
r65c02_device(mconfig, type, name, tag, owner, clock, shortname, source)
{
}
offs_t r65c02gk_device::disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options)
{
return disassemble_generic(buffer, pc, oprom, opram, options, disasm_entries);
}
void r65c02gk_device::device_reset()
{
r65c02_device::device_reset();
interrupt_controller.Reset();
}
void r65c02gk_device::set_irq_bank(memory_bank *m_bank4000_, UINT8 *bank4000_normal_, UINT8 *bank4000_irq_) {
m_bank4000 = m_bank4000_;
bank4000_normal=bank4000_normal_;
bank4000_irq=bank4000_irq_;
}
void r65c02gk_device::execute_set_input(int inputnum, int state)
{
switch(inputnum) {
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: case 10: case 11: case 12:
interrupt_controller.states[inputnum]=state;
irq_state= interrupt_controller.getlevel()>=0;
break;
case R65C02GK_NMI_LINE: nmi_state = nmi_state || (state == ASSERT_LINE); break;
#if 0
case APU_IRQ_LINE: apu_irq_state = state == ASSERT_LINE; break;
case V_LINE:
if(!v_state && state == ASSERT_LINE)
P |= F_V;
v_state = state == ASSERT_LINE;
break;
#endif
}
// logerror("%.6f irq num:%d state:%d irq:%x level:%x\n",machine().time().as_double(), inputnum, state, irq_state, interrupt_controller.getlevel());
}
#if 0
void r65c02gk_device::prefetch()
{
sync = true;
sync_w(ASSERT_LINE);
NPC = PC;
IR = mintf->read_decrypted(PC);
sync = false;
sync_w(CLEAR_LINE);
if((nmi_state || ((irq_state || apu_irq_state) && !(P & F_I))) && !inhibit_interrupts) {
irq_taken = true;
IR = 0x00;
} else
PC++;
}
void r65c02gk_device::prefetch_wai()
{
sync = true;
sync_w(ASSERT_LINE);
NPC = PC;
IR = mintf->read_decrypted(PC);
sync = false;
sync_w(CLEAR_LINE);
if (irq_state || nmi_state)
PC++;
if((nmi_state || ((irq_state || apu_irq_state) && !(P & F_I))) && !inhibit_interrupts) {
irq_taken = true;
IR = 0x00;
}
}
void r65c02gk_device::prefetch_noirq()
{
sync = true;
sync_w(ASSERT_LINE);
NPC = PC;
IR = mintf->read_decrypted(PC);
sync = false;
sync_w(CLEAR_LINE);
PC++;
}
#endif
#include "cpu/m6502/r65c02gk.hxx"