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ZCPR33
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Z33IF14.LBR
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Z33IF14.UPD
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2000-06-30
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1KB
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24 lines
This version of Z33IF contains a number of significant changes from the
previous release. Do not try to use the programs without reading this file.
First, Howard Goldstein has fixed a couple of bugs in the operation of the
file tests. The earlier version failed to keep track properly of the
default logged directory and thus under some circumstances would look for a
file in the wrong directory.
These files have been assembled in three different versions: IF14.COM,
IF14.CIM, and IF14.4OM. The latter two are for operation with NZCOM and
Z3PLUS systems. Because those versions of Z System allow returning to
standard CP/M, it is important for files to have protection to prevent their
attempted operation under CP/M. The IF14.CIM file has been assembled for
operation at 8000H. To prevent its operation at 100H, it contains a special
header routine that verifies its load address. This protection code makes
the file a little bit longer but allows it to work with Z33 and the standard
Z33FCP.
The IF14.4OM file is a type-4 program. It can be loaded only by Z34 and the
Z34FCP. This version is protected by having the initial JP (jump)
instruction replaced with a RST 0 instruction, which causes a warmboot. Z34
and Z34FCP, which know how to load type-4 programs, make the necessary
conversions in the code.