On Jan 6, 2006, at 7:40 AM, Gerhard Postpischil wrote:
Ed Gould wrote:
I always used IEBDG to create the binary zero blocks of data. I
don't have the control cards handy but its a quick 5 minute read
and 1 minute in ISPF.
Perhaps I'm missing something here, and I don't remember 3590
hardware details, but for my 3480 cartridges I've always used EXCP
with CCW opcode X'97' - Data Security Erase, chained to one Erase
Gap. Works like a charm.
This is cheap anyone can do it utility. The EXCP code (I think) you
are proposing requires assembler knowledge and some knowledge of I/O.
Ed
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