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);
}
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;
}
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);
}
