C++ (Cpp) hdma_active_after Examples

Example #1

File: dma.cpp Project: devinacker/bsnes-plus

void CPU::hdma_update(unsigned i) {
  add_clocks(4);
  regs.mdr = dma_read((channel[i].source_bank << 16) | channel[i].hdma_addr);
  add_clocks(4);

  if((channel[i].line_counter & 0x7f) == 0) {
    channel[i].line_counter = regs.mdr;
    channel[i].hdma_addr++;

    channel[i].hdma_completed = (channel[i].line_counter == 0);
    channel[i].hdma_do_transfer = !channel[i].hdma_completed;

    if(channel[i].indirect) {
      add_clocks(4);
      regs.mdr = dma_read(hdma_addr(i));
      add_clocks(4);
      channel[i].indirect_addr = regs.mdr << 8;

      if(!channel[i].hdma_completed || hdma_active_after(i)) {
        add_clocks(4);
        regs.mdr = dma_read(hdma_addr(i));
        add_clocks(4);
        channel[i].indirect_addr >>= 8;
        channel[i].indirect_addr |= regs.mdr << 8;
      }

Example #2

File: dma.cpp Project: Godzil/quickdev16

void sCPU::hdma_update(uint8 i) {
  channel[i].hdma_line_counter = dma_read(hdma_addr(i));
  dma_add_clocks(8);

  channel[i].hdma_completed   = (channel[i].hdma_line_counter == 0);
  channel[i].hdma_do_transfer = !channel[i].hdma_completed;

  if(channel[i].hdma_indirect) {
    channel[i].hdma_iaddr = dma_read(hdma_addr(i)) << 8;
    dma_add_clocks(8);

    if(!channel[i].hdma_completed || hdma_active_after(i)) {
      channel[i].hdma_iaddr >>= 8;
      channel[i].hdma_iaddr  |= dma_read(hdma_addr(i)) << 8;
      dma_add_clocks(8);
    }