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// license:BSD-3-Clause
// copyright-holders:Kaz
/***********************************************************************************************************
NES/Famicom cartridge emulation for Zemina PCBs
***********************************************************************************************************/
#include "emu.h"
#include "zemina.h"
#ifdef NES_PCB_DEBUG
#define VERBOSE 1
#else
#define VERBOSE 0
#endif
#define LOG_MMC(...) do { if (VERBOSE) logerror(__VA_ARGS__); } while (0)
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(NES_ZEMINA, nes_zemina_device, "nes_zemina", "NES Cart Zemina PCB")
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// constructor
//-------------------------------------------------
nes_zemina_device::nes_zemina_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: nes_nrom_device(mconfig, NES_ZEMINA, tag, owner, clock)
{
}
void nes_zemina_device::pcb_reset()
{
prg16_89ab(0);
prg16_cdef(0); // fixed bank
for (int i = 0; i < 4; i++)
chr2_x(i << 1, 0, CHRROM);
}
/*-------------------------------------------------
mapper specific handlers
-------------------------------------------------*/
/*-------------------------------------------------
Zemina board emulation
Games: Magic Kid GooGoo
iNES: mapper 190
In MAME: Supported.
-------------------------------------------------*/
void nes_zemina_device::write_h(offs_t offset, u8 data)
{
LOG_MMC("zemina write_h, offset: %04x, data: %02x\n", offset, data);
switch (offset & 0x6000)
{
case 0x0000:
case 0x4000:
prg16_89ab(BIT(offset, 14) << 3 | (data & 0x07));
break;
case 0x2000:
chr2_x((offset & 0x03) << 1, data, CHRROM);
break;
}
}
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