static void WriteByte(uint8_t byte,uint8_t address)
{
LowerCS();
TransferByte(address);
TransferByte(byte);
RaiseCS();
}
static void WriteBytes(uint8_t *bytes,uint8_t address,int numbytes)
{
if(numbytes>1) address|=MultiByteCommand;
LowerCS();
TransferByte(address);
for(int i=0;i<numbytes;i++) TransferByte(bytes[i]);
RaiseCS();
}
static uint8_t ReadByte(uint8_t address)
{
LowerCS();
TransferByte(address|ReadCommand);
uint8_t byte=TransferByte(0);
RaiseCS();
return byte;
}
static void ReadBytes(uint8_t *buffer,uint8_t address,int numbytes)
{
if(numbytes>1) address|=ReadCommand|MultiByteCommand;
else address|=ReadCommand;
LowerCS();
TransferByte(address);
for(int i=0;i<numbytes;i++) buffer[i]=TransferByte(0);
RaiseCS();
}
void IEXIDevice::DMAWrite(u32 address, u32 size)
{
while (size--)
{
u8 byte = Memory::Read_U8(address++);
TransferByte(byte);
}
}
void IEXIDevice::DMAWrite(u32 _uAddr, u32 _uSize)
{
// _dbg_assert_(EXPANSIONINTERFACE, 0);
while (_uSize--)
{
u8 uByte = Memory::Read_U8(_uAddr++);
TransferByte(uByte);
}
}
// --- interface IEXIDevice ---
void IEXIDevice::ImmWrite(u32 _uData, u32 _uSize)
{
while (_uSize--)
{
u8 uByte = _uData >> 24;
TransferByte(uByte);
_uData <<= 8;
}
}
void IEXIDevice::DMARead(u32 address, u32 size)
{
while (size--)
{
u8 byte = 0;
TransferByte(byte);
Memory::Write_U8(byte, address++);
}
}
u32 IEXIDevice::ImmRead(u32 _uSize)
{
u32 uResult = 0;
u32 uPosition = 0;
while (_uSize--)
{
u8 uByte = 0;
TransferByte(uByte);
uResult |= uByte << (24-(uPosition++ * 8));
}
return uResult;
}
