void ngen_state::machine_start()
{
memory_share* vidshare = memshare("vram");
memory_share* fontshare = memshare("fontram");
m_hd_buffer.allocate(1024*8); // 8kB buffer RAM for HD controller
if(vidshare == nullptr || fontshare == nullptr)
fatalerror("VRAM not found\n");
m_vram.set(*vidshare,2);
m_fontram.set(*fontshare,2);
}
void bmcbowl_state::machine_reset()
{
#ifdef NVRAM_HACK
for (int i = 0; i < m_stats_ram.bytes(); i++)
m_stats_ram[i] = 0xff;
init_stats(this,bmc_nv1,ARRAY_LENGTH(bmc_nv1),0);
init_stats(this,bmc_nv2,ARRAY_LENGTH(bmc_nv2),0x3b0);
init_stats(this,bmc_nv3,ARRAY_LENGTH(bmc_nv3),0xfe2);
#endif
}
bool device_image_interface::load_software_region(const char *tag, optional_shared_ptr<UINT8> &ptr)
{
size_t size = get_software_region_length(tag);
if (size)
{
ptr.allocate(size);
memcpy(ptr, get_software_region(tag), size);
}
return size > 0;
}
uint32_t decstation_state::kn01_screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
uint32_t *scanline;
int x, y;
uint8_t pixels;
uint8_t *vram = (uint8_t *)m_kn01vram.target();
for (y = 0; y < 864; y++)
{
scanline = &bitmap.pix32(y);
for (x = 0; x < 1024; x++)
{
pixels = vram[(y * 1024) + x];
*scanline++ = m_palette[pixels];
}
}
return 0;
}
void vic10_state::machine_start()
{
// allocate memory
m_color_ram.allocate(0x400);
// initialize memory
uint8_t data = 0xff;
for (offs_t offset = 0; offset < m_ram->size(); offset++)
{
m_ram->pointer()[offset] = data;
if (!(offset % 64)) data ^= 0xff;
}
// state saving
save_item(NAME(m_cia_irq));
save_item(NAME(m_vic_irq));
save_item(NAME(m_exp_irq));
}
void fp_state::video_start()
{
// allocate memory
m_video_ram.allocate(0x20000);
}
