void CEXIMemoryCard::SetCS(int cs)
{
if (cs) // not-selected to selected
{
m_uPosition = 0;
}
else
{
switch (command)
{
case cmdSectorErase:
if (m_uPosition > 2)
{
memorycard->ClearBlock(address & (memory_card_size - 1));
status |= MC_STATUS_BUSY;
status &= ~MC_STATUS_READY;
//???
CmdDoneLater(5000);
}
break;
case cmdChipErase:
if (m_uPosition > 2)
{
// TODO: Investigate on HW, I (LPFaint99) believe that this only
// erases the system area (Blocks 0-4)
memorycard->ClearAll();
status &= ~MC_STATUS_BUSY;
}
break;
case cmdPageProgram:
if (m_uPosition >= 5)
{
int count = m_uPosition - 5;
int i = 0;
status &= ~0x80;
while (count--)
{
memorycard->Write(address, 1, &(programming_buffer[i++]));
i &= 127;
address = (address & ~0x1FF) | ((address + 1) & 0x1FF);
}
CmdDoneLater(5000);
}
break;
}
}
}
void CEXIMemoryCard::SetCS(int cs)
{
// So that memory card won't be invalidated during flushing
if (flushThread.joinable())
{
flushThread.join();
}
if (cs) // not-selected to selected
{
m_uPosition = 0;
}
else
{
switch (command)
{
case cmdSectorErase:
if (m_uPosition > 2)
{
memset(memory_card_content + (address & (memory_card_size-1)), 0xFF, 0x2000);
status |= MC_STATUS_BUSY;
status &= ~MC_STATUS_READY;
//???
CmdDoneLater(5000);
}
break;
case cmdChipErase:
if (m_uPosition > 2)
{
memset(memory_card_content, 0xFF, memory_card_size);
status &= ~MC_STATUS_BUSY;
m_bDirty = true;
}
break;
case cmdPageProgram:
if (m_uPosition >= 5)
{
int count = m_uPosition - 5;
int i=0;
status &= ~0x80;
while (count--)
{
memory_card_content[address] = programming_buffer[i++];
i &= 127;
address = (address & ~0x1FF) | ((address+1) & 0x1FF);
}
CmdDoneLater(5000);
}
// Page written to memory card, not just to buffer - let's schedule a flush 0.5b cycles into the future (1 sec)
// But first we unschedule already scheduled flushes - no point in flushing once per page for a large write.
CoreTiming::RemoveEvent(et_this_card);
CoreTiming::ScheduleEvent(500000000, et_this_card, (u64)card_index);
break;
}
}
}