On Fri, 8 Oct 1999, Martijn van Buul wrote: > The maximum capacity of a cd-Audio is 441000 (samples/s) * 4 ( > bytes/sample) * 74 * 60 = 746.9 MB, while the maximum capacity of a > normal CD-ROM is only 650 MB. I thought about this last night, and also thought about a CRC check. There's no time to do that on-the-fly, while reading the bits from the cassette port. All the loader can do is to report a ?LOAD ERROR after completing the transfer and the checksum calculation. But I still think that this idea is worth trying. What we need is four things: 1. a simple adapter from line-level CD audio output to the cassette port (an RCA plug and a cassette port connector). The frequency of the signal should be doubled, i.e. a change in the input must be translated to a pulse in the "cassette read" signal. 2. a program that stores Commodore tape format in a sample file that can be processed e.g. by cdrdao. 3. a program that converts files to the new GCR format 4. 6502 software for reading the new GCR format Step 3 should be trivial after step 2. Any takers for steps 1 and 2? I wouldn't like to learn the details of the Commodore tape format. BTW, did I mention that the same hardware will work with all 8-bit Commodores, from the PET to the C128? (Maybe even the C65, if it has a cassette port.) Marko - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
Archive generated by hypermail 2.1.1.