void nes_g101_device::write_h(offs_t offset, uint8_t data)
{
LOG_MMC(("g101 write_h, offset: %04x, data: %02x\n", offset, data));
switch (offset & 0x7000)
{
case 0x0000:
if (m_latch)
{
prg8_89(0xfe);
prg8_cd(data & 0x1f);
}
else
{
prg8_89(data & 0x1f);
prg8_cd(0xfe);
}
break;
case 0x1000:
m_latch = BIT(data, 1);
if (m_pcb_ctrl_mirror)
set_nt_mirroring(BIT(data, 0) ? PPU_MIRROR_HORZ : PPU_MIRROR_VERT);
break;
case 0x2000:
prg8_ab(data & 0x1f);
break;
case 0x3000:
chr1_x(offset & 0x07, data & 0x7f, CHRROM);
break;
}
}
void nes_h3001_device::write_h(offs_t offset, uint8_t data)
{
LOG_MMC(("h3001 write_h, offset %04x, data: %02x\n", offset, data));
switch (offset & 0x7fff)
{
case 0x0000:
prg8_89(data);
break;
case 0x1001:
set_nt_mirroring(BIT(data, 7) ? PPU_MIRROR_HORZ : PPU_MIRROR_VERT);
break;
case 0x1003:
m_irq_enable = data & 0x80;
set_irq_line(CLEAR_LINE);
break;
case 0x1004:
m_irq_count = m_irq_count_latch;
set_irq_line(CLEAR_LINE);
break;
case 0x1005:
m_irq_count_latch = (m_irq_count_latch & 0x00ff) | (data << 8);
break;
case 0x1006:
m_irq_count_latch = (m_irq_count_latch & 0xff00) | data;
break;
case 0x2000:
prg8_ab(data);
break;
case 0x3000: case 0x3001: case 0x3002: case 0x3003:
case 0x3004: case 0x3005: case 0x3006: case 0x3007:
chr1_x(offset & 0x07, data, CHRROM);
break;
case 0x4000:
prg8_cd(data);
break;
default:
break;
}
}
void nes_hengg_shjy3_device::update_banks()
{
prg8_89(m_mmc_prg_bank[0]);
prg8_ab(m_mmc_prg_bank[1]);
for (int i = 0; i < 8; i++)
{
UINT8 chr_bank = m_mmc_vrom_bank[i] | (m_mmc_extra_bank[i] << 4);
if (m_mmc_vrom_bank[i] == 0xc8)
{
m_chr_mode = 0;
continue;
}
else if (m_mmc_vrom_bank[i] == 0x88)
{
m_chr_mode = 1;
continue;
}
if ((m_mmc_vrom_bank[i] == 4 || m_mmc_vrom_bank[i] == 5) && !m_chr_mode)
chr1_x(i, chr_bank & 1, CHRRAM);
else
chr1_x(i, chr_bank, CHRROM);
}
}
void nes_tengen032_device::chr_cb(int start, int bank, int source)
{
chr1_x(start, bank, source);
}
void nes_waixing_g_device::chr_cb(int start, int bank, int source)
{
int chr_src = (bank < 0x08) ? CHRRAM : CHRROM;
chr1_x(start, bank, chr_src);
}
void nes_waixing_f_device::chr_cb(int start, int bank, int source)
{
chr1_x(start, bank, CHRRAM);
}
void nes_waixing_c_device::chr_cb(int start, int bank, int source)
{
int chr_src = ((bank == 0x08) || (bank == 0x09) || (bank == 0x0a) || (bank == 0x0b)) ? CHRRAM : CHRROM;
chr1_x(start, bank, chr_src);
}
void nes_waixing_b_device::chr_cb(int start, int bank, int source)
{
int chr_src = BIT(bank, 7) ? CHRRAM : CHRROM;
chr1_x(start, bank, chr_src);
}
/* Ji Jia Zhan Shi only works with this */
void nes_waixing_a1_device::chr_cb(int start, int bank, int source)
{
int chr_src = ((bank == 8) || (bank == 9)) ? CHRRAM : CHRROM;
chr1_x(start, bank, chr_src);
}
// base MMC3 simply calls chr1_x
void nes_txrom_device::chr_cb( int start, int bank, int source )
{
chr1_x(start, bank, source);
}
