// TODO
public override void Reset()
{
close_all_channels();
byte[] buffer = Bam.AllocateBuffer();
read_sector(18, 0, buffer);
bam = new Bam(buffer);
//cmd_len = 0;
//for (int i = 0; i < buf_free.Length; i++)
// buf_free[i] = true;
set_error(ErrorCode1541.ERR_STARTUP);
}
// TODO
void execute_command(byte[] command)
{
UInt16 adr;
int len;
switch ((char)command[0])
{
case 'B':
if (command[1] != '-')
set_error(ErrorCode1541.ERR_SYNTAX30);
else
switch ((char)command[2])
{
case 'R':
block_read_cmd(command.CopySubset(3));
break;
case 'P':
buffer_ptr_cmd(command.CopySubset(3));
break;
case 'A':
case 'F':
case 'W':
set_error(ErrorCode1541.ERR_WRITEPROTECT);
break;
default:
set_error(ErrorCode1541.ERR_SYNTAX30);
break;
}
break;
case 'M':
if (command[1] != '-')
set_error(ErrorCode1541.ERR_SYNTAX30);
else
switch ((char)command[2])
{
case 'R':
// TODO
//adr = (UInt16)(((byte)command[4] << 8) | ((byte)command[3]));
//error_ptr = (byte*)((byte*)_ram + (adr & 0x07ff));
//if ((error_len = (byte)command[5]) == 0)
// error_len = 1;
adr = (UInt16)(((byte)command[4] << 8) | ((byte)command[3]));
//TODO
break;
case 'W':
adr = (UInt16)(((byte)command[4] << 8) | ((byte)command[3]));
len = (byte)command[5];
for (int i = 0; i < len; i++)
_ram[adr + i] = (byte)command[i + 6];
break;
default:
set_error(ErrorCode1541.ERR_SYNTAX30);
break;
}
break;
case 'I':
close_all_channels();
byte[] buffer = Bam.AllocateBuffer();
read_sector(18, 0, buffer);
bam = new Bam(buffer);
set_error(ErrorCode1541.ERR_OK);
break;
case 'U':
switch (command[1] & 0x0f)
{
case 1: // U1/UA: Block-Read
block_read_cmd(command.CopySubset(2));
break;
case 2: // U2/UB: Block-Write
set_error(ErrorCode1541.ERR_WRITEPROTECT);
break;
case 10: // U:/UJ: Reset
Reset();
break;
default:
set_error(ErrorCode1541.ERR_SYNTAX30);
break;
}
break;
case 'G':
if (command[1] != ':')
set_error(ErrorCode1541.ERR_SYNTAX30);
else
chd64_cmd(command.CopySubset(2));
break;
case 'C':
case 'N':
case 'R':
case 'S':
case 'V':
set_error(ErrorCode1541.ERR_WRITEPROTECT);
break;
default:
set_error(ErrorCode1541.ERR_SYNTAX30);
break;
}
}