On Mon, 17 Jan 2000, William Levak wrote: > I have read out the ROM twice. It is as I have listed. The 1571 is as > you have indicated, but the C128D floppy is not. Hmm, have you compared it against the 318047-01 image that is available from <URL:http://www.funet.fi/pub/cbm/firmware/drives/new/1571/>? There the routine is almost as Ruud says: a9 02 8d 00 18 a9 20 8d 01 18 4c 7c aa. As you see, it stores $2000 to $1800/$1801, and not $2002. And it makes a jump to $aa7c instead of $ff18. The routine at $aa7c initializes some of the 5710 registers around $401x and finally jumps to $ff18. The binary dump seems to contain just lda/sta pairs and the final jmp. Marko - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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