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- Path: kd6ozk.soca.ca.us.na!lwilliam
- From: lwilliam@pioneer.arc.nasa.gov (Tom)
- Newsgroups: comp.sys.cbm
- Subject: Re: Making 1541 Disks
- Date: 19 Jan 1996 18:54:38 GMT
- Organization: NASA Ames Research Center
- Message-ID: <4dopde$sgp@onramp.arc.nasa.gov>
- References: <4dn25g$h0s@cantua.canterbury.ac.nz>
- NNTP-Posting-Host: arc-tac1-slip11.nsi.nasa.gov
- X-Newsreader: TIN [version 1.2 PL2]
-
- David M. E. Ingram (ingramdm@elec.canterbury.ac.nz) wrote:
- : Hi all,
-
- : This week I
- : bought an SX-64 and thus would like to transfer .D64 and .P00 files onto
- : floppies.
-
- Dave,
-
- Unless you can obtain master control of the serial interface, I'm afraid
- X1541 won't help you. It would be like connecting two C64's to one disk
- drive.
-
- As for 64Net, I'm not familiar with that.
-
- However, if you have an RS-232 adapter for your SX-64, or just a modem
- (though you're looking at slow transfers either way), you can transfer the
- .D64 images to the 1541 with some simple BASIC.
-
- A .D64 image is nothing more than an exact image of a 1541 disk, minus the
- sector and track header information. Data are stored in the same locations
- in the .D64 file as they are on a 1541 disk. Therefore, reading the .D64
- file in 256-byte chunks, then writing each chunck to the appropriate sector
- on the disk, will create a useable 1541 disk. The 1541 cannot be opened as
- a standard file, as you won't have access to track 18 and must give control
- to the 1541, but must be controlled by the SX-64 and block-written.
-
- Alternately, I believe there is a utility for the PC that will extract
- individual files from a .D64 or .T64 file, then you can use any terminal
- program capable of binary transfers to move them, but this won't work for
- programs that store some data outside the EOF marker or otherwise protected
- files.
-
- Hope this helps.
- Tom
- lwilliam@pioneer.arc.nasa.gov
-