C++ (Cpp) set_prg Examples

Example #1

// this allows for easier implementation of the NES-EVENT board used for Nintento World Championships
void nes_sxrom_device::update_regs(int reg)
{
	switch (reg)
	{
		case 0:
			switch (m_reg[0] & 0x03)
			{
				case 0: set_nt_mirroring(PPU_MIRROR_LOW); break;
				case 1: set_nt_mirroring(PPU_MIRROR_HIGH); break;
				case 2: set_nt_mirroring(PPU_MIRROR_VERT); break;
				case 3: set_nt_mirroring(PPU_MIRROR_HORZ); break;
			}
			set_chr();
			set_prg();
			break;
		case 1:
			set_chr();
			set_prg();
			break;
		case 2:
			set_chr();
			break;
		case 3:
			set_prg();
			break;
	}
}

Example #2

File: bandai.cpp Project: DragonMinded/mame

void nes_fjump2_device::pcb_reset()
{
	chr8(0, CHRRAM);
	memset(m_reg, 0, sizeof(m_reg));
	set_prg();

	m_irq_enable = 0;
}

Example #3

File: nes_waixing.c Project: CJBass/mame2013-libretro

void nes_waixing_j_device::pcb_reset()
{
	m_chr_source = m_vrom_chunks ? CHRROM : CHRRAM;
	mmc3_common_initialize(0xff, 0xff, 0);

	m_reg[0] = 0x01;
	m_reg[1] = 0x02;
	m_reg[2] = 0x7e;
	m_reg[3] = 0x7f;
	set_prg(m_prg_base, m_prg_mask);
}

Example #4

File: nes_waixing.c Project: CJBass/mame2013-libretro

void nes_waixing_f_device::pcb_reset()
{
	m_chr_source = m_vrom_chunks ? CHRROM : CHRRAM;
	mmc3_common_initialize(0xff, 0xff, 0);

	memset(mapper_ram, 0, sizeof(mapper_ram));
	m_mmc_prg_bank[0] = 0x00;
	m_mmc_prg_bank[1] = 0x01;
	m_mmc_prg_bank[2] = 0x4e;
	m_mmc_prg_bank[3] = 0x4f;
	set_prg(m_prg_base, m_prg_mask);
}

Example #5

void nes_sorom_device::pcb_reset()
{
	m_chr_source = m_vrom_chunks ? CHRROM : CHRRAM;

	m_latch = 0;
	m_count = 0;
	m_reg[0] = 0x0f;
	m_reg[1] = m_reg[2] = m_reg[3] = 0;
	m_reg_write_enable = 1;

	set_nt_mirroring(PPU_MIRROR_HORZ);
	set_chr();
	set_prg();
}

Example #6

File: nes_waixing.c Project: CJBass/mame2013-libretro

void nes_waixing_g_device::pcb_reset()
{
	m_chr_source = m_vrom_chunks ? CHRROM : CHRRAM;
	mmc3_common_initialize(0xff, 0xff, 0);

	memset(mapper_ram, 0, sizeof(mapper_ram));
	m_mmc_prg_bank[0] = 0x00;
	m_mmc_prg_bank[1] = 0x01;
	m_mmc_prg_bank[2] = 0x3e;
	m_mmc_prg_bank[3] = 0x3f;
	m_mmc_vrom_bank[0] = 0x00;
	m_mmc_vrom_bank[1] = 0x02;
	m_mmc_vrom_bank[2] = 0x04;
	m_mmc_vrom_bank[3] = 0x05;
	m_mmc_vrom_bank[4] = 0x06;
	m_mmc_vrom_bank[5] = 0x07;
	m_mmc_vrom_bank[6] = 0x01;
	m_mmc_vrom_bank[7] = 0x03;
	set_prg(m_prg_base, m_prg_mask);
	set_chr(m_chr_source, m_chr_base, m_chr_mask);
}

Example #7

File: mmc3.c Project: BrandoCommando/mame

void nes_txrom_device::mmc3_common_initialize( int prg_mask, int chr_mask, int irq_type )
{
	m_mmc_prg_bank[0] = m_mmc_prg_bank[2] = 0xffe; // m_mmc_prg_bank[2] & m_mmc_prg_bank[3] remain always the same in most MMC3 variants
	m_mmc_prg_bank[1] = m_mmc_prg_bank[3] = 0xfff; // but some pirate clone mappers change them after writing certain registers
	memset(m_mmc_vrom_bank, 0, sizeof(m_mmc_vrom_bank));

	m_latch = 0;
	m_wram_protect = 0x80;

	m_prg_base = m_chr_base = 0;
	m_prg_mask = prg_mask;
	m_chr_mask = chr_mask;

	m_alt_irq = irq_type;       // later MMC3 boards seem to use MMC6-type IRQ... more investigations are in progress at NESDev...
	m_irq_enable = 0;
	m_irq_count = m_irq_count_latch = 0;
	m_irq_clear = 0;

	set_prg(m_prg_base, m_prg_mask);
	set_chr(m_chr_source, m_chr_base, m_chr_mask);
}