mirror of
https://github.com/holub/mame
synced 2025-05-24 06:30:04 +03:00
109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/**********************************************************************
|
|
|
|
Easy Calc Result cartridge emulation
|
|
|
|
Copyright MESS Team.
|
|
Visit http://mamedev.org for licensing and usage restrictions.
|
|
|
|
**********************************************************************/
|
|
|
|
/*
|
|
|
|
PCB Layout
|
|
----------
|
|
|
|
|===========================|
|
|
|=| |
|
|
|=| ROM0 LS73 |
|
|
|=| |
|
|
|=| |
|
|
|=| |
|
|
|=| |
|
|
|=| ROM1 LS00 |
|
|
|=| |
|
|
|===========================|
|
|
|
|
ROM0 - Hitachi HN61364P 8Kx8 EPROM "CR2001"
|
|
ROM1 - Hitachi HN613128P 16Kx8 EPROM "CR3001"
|
|
|
|
*/
|
|
|
|
#include "c64_easy_calc_result.h"
|
|
|
|
|
|
|
|
//**************************************************************************
|
|
// DEVICE DEFINITIONS
|
|
//**************************************************************************
|
|
|
|
const device_type C64_EASY_CALC_RESULT = &device_creator<c64_easy_calc_result_cartridge_device>;
|
|
|
|
|
|
|
|
//**************************************************************************
|
|
// LIVE DEVICE
|
|
//**************************************************************************
|
|
|
|
//-------------------------------------------------
|
|
// c64_easy_calc_result_cartridge_device - constructor
|
|
//-------------------------------------------------
|
|
|
|
c64_easy_calc_result_cartridge_device::c64_easy_calc_result_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
|
|
device_t(mconfig, C64_EASY_CALC_RESULT, "C64 Easy Calc Result cartridge", tag, owner, clock, "c64_easy_calc_result", __FILE__),
|
|
device_c64_expansion_card_interface(mconfig, *this)
|
|
{
|
|
}
|
|
|
|
|
|
//-------------------------------------------------
|
|
// device_start - device-specific startup
|
|
//-------------------------------------------------
|
|
|
|
void c64_easy_calc_result_cartridge_device::device_start()
|
|
{
|
|
// state saving
|
|
save_item(NAME(m_bank));
|
|
}
|
|
|
|
|
|
//-------------------------------------------------
|
|
// device_reset - device-specific reset
|
|
//-------------------------------------------------
|
|
|
|
void c64_easy_calc_result_cartridge_device::device_reset()
|
|
{
|
|
m_bank = 0;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------
|
|
// c64_cd_r - cartridge data read
|
|
//-------------------------------------------------
|
|
|
|
UINT8 c64_easy_calc_result_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
|
|
{
|
|
if (!roml)
|
|
{
|
|
data = m_roml[offset & 0x1fff];
|
|
}
|
|
else if (!romh)
|
|
{
|
|
data = m_romh[(m_bank << 13) | (offset & 0x1fff)];
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------
|
|
// c64_cd_w - cartridge data write
|
|
//-------------------------------------------------
|
|
|
|
void c64_easy_calc_result_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
|
|
{
|
|
if (!io1)
|
|
{
|
|
m_bank = !BIT(offset, 0);
|
|
}
|
|
}
|