mame/src/emu/didisasm.cpp
2016-06-26 13:03:08 -04:00

79 lines
2.3 KiB
C++

// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
didisasm.c
Device disasm interfaces.
***************************************************************************/
#include "emu.h"
//**************************************************************************
// DEVICE DISASM INTERFACE
//**************************************************************************
//-------------------------------------------------
// device_disasm_interface - constructor
//-------------------------------------------------
device_disasm_interface::device_disasm_interface(const machine_config &mconfig, device_t &device)
: device_interface(device, "disasm")
{
}
//-------------------------------------------------
// ~device_disasm_interface - destructor
//-------------------------------------------------
device_disasm_interface::~device_disasm_interface()
{
}
//-------------------------------------------------
// interface_pre_start - work to be done prior to
// actually starting a device
//-------------------------------------------------
void device_disasm_interface::interface_pre_start()
{
// bind delegate
m_dasm_override.bind_relative_to(*device().owner());
}
//-------------------------------------------------
// static_set_dasm_override - configuration
// helper to override disassemble function
//-------------------------------------------------
void device_disasm_interface::static_set_dasm_override(device_t &device, dasm_override_delegate dasm_override)
{
device_disasm_interface *dasm;
if (!device.interface(dasm))
throw emu_fatalerror("MCFG_DEVICE_DISASSEMBLE_OVERRIDE called on device '%s' with no disasm interface", device.tag());
dasm->m_dasm_override = dasm_override;
}
//-------------------------------------------------
// disassemble - interface for disassembly
//-------------------------------------------------
offs_t device_disasm_interface::disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options)
{
offs_t result = 0;
// check for disassembler override
if (!m_dasm_override.isnull())
result = m_dasm_override(device(), buffer, pc, oprom, opram, options);
if (result == 0)
result = disasm_disassemble(buffer, pc, oprom, opram, options);
return result;
}