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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
/***************************************************************************
m65ce02.c
6502 with Z register and some more stuff
***************************************************************************/
#include "emu.h"
#include "m65ce02.h"
const device_type M65CE02 = &device_creator<m65ce02_device>;
m65ce02_device::m65ce02_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock) :
m65c02_device(mconfig, M65CE02, "M65CE02", tag, owner, clock, "m65ce02", __FILE__), TMP3(0), Z(0), B(0)
{
}
m65ce02_device::m65ce02_device(const machine_config &mconfig, device_type type, const char *name, std::string tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
m65c02_device(mconfig, type, name, tag, owner, clock, shortname, source), TMP3(0), Z(0), B(0)
{
}
offs_t m65ce02_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 m65ce02_device::init()
{
m65c02_device::init();
state_add(M65CE02_Z, "Z", Z);
state_add(M65CE02_B, "B", B).callimport().formatstr("%2s");
save_item(NAME(B));
save_item(NAME(Z));
save_item(NAME(TMP3));
Z = 0x00;
B = 0x0000;
TMP3 = 0x0000;
}
void m65ce02_device::device_start()
{
if(direct_disabled)
mintf = new mi_default_nd;
else
mintf = new mi_default_normal;
init();
}
void m65ce02_device::device_reset()
{
m65c02_device::device_reset();
Z = 0x00;
B = 0x0000;
}
void m65ce02_device::state_import(const device_state_entry &entry)
{
switch(entry.index()) {
case STATE_GENFLAGS:
case M6502_P:
P = P | F_B;
break;
case M65CE02_B:
B <<= 8;
break;
}
}
void m65ce02_device::state_export(const device_state_entry &entry)
{
}
void m65ce02_device::state_string_export(const device_state_entry &entry, std::string &str) const
{
switch(entry.index()) {
case STATE_GENFLAGS:
case M6502_P:
strprintf(str, "%c%c%c%c%c%c%c",
P & F_N ? 'N' : '.',
P & F_V ? 'V' : '.',
P & F_E ? 'E' : '.',
P & F_D ? 'D' : '.',
P & F_I ? 'I' : '.',
P & F_Z ? 'Z' : '.',
P & F_C ? 'C' : '.');
break;
case M65CE02_B:
strprintf(str, "%02x", B >> 8);
break;
}
}
#include "cpu/m6502/m65ce02.inc"
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