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Z33LIB.HZP
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Z33LIB.HLP
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2000-06-30
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279 lines
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Z33LIB.LIB
Size (recs) CRC Version Author/Latest Issue Disk
Z33LIB.REL 2k (15) CD14 0.5 Jay Sage 10/87 Z3LIB2
Z33LIB is a collection of the module headers from the source code for the
Z33LIB routines that have been written to date.
A - FCB1CHK I - GETER3 Q - PUTER1 Y - SCAN
B - FCB2CHK J - GETSFCB R - PUTER3 Z - SETEPB
C - FCBCHK K - GETSRUN S - PUTERC 1 - STOPXSUB
D - GCMDDU L - GETSUB T - PUTSUB 2 - SUBON
E - GDEFDU M - HALTSUB U - QERROR 3 - Z33CHK
F - GETCCP N - HIGHUSER V - REPARSE 4 - Z33FNAME
G - GETECP O - PARSE2 W - RESEPB
H - GETER1 P - PDEFDU X - RETCST
:a
FCB1CHK
This routine checks the first default file control block to see if the
token parsed there was a valid file specification. If there was an error
(signalled by a nonzero value in the record-count byte), then this routine
returns NZ and register A nonzero. A zero value and Z flag signals a valid
FCB.
:b
FCB2CHK
This routine checks the second default file control block to see if the
token parsed there was a valid file specification. If there was an error
(signalled by a nonzero value in the record-count byte), then this routine
returns NZ and register A nonzero. A zero value and Z flag signals a valid
FCB.
:c
FCBCHK
This routine checks the file control block pointed to by DE to see if it
contains a validly parsed file specification. ZCPR33 sets the record-count
byte to a nonzero value if there was an error in resolving the file spec.
If the FCB is valid, this routine returns Z and A=0. No other registers are
affected.
:d
GCMDDU
This routine examines the external commmand file control block to determine
the directory (drive/user) in which the file was located during the path
search. The values are returned in the BC register pair, with the drive in
B being in the range 0..15. No other registers are affected.
:e
GDEFDU
This routine gets the values of the current default (logged) drive/user
area into BC by reading the CURDR and CURUSR bytes in the message buffer. No
registers other than BC are affected.
:f
GETCCP
This routine calculates the starting address of the CCP based on the BIOS
warmboot vector. The result is returned in HL. No other registers are
affected.
:g
GETECP
This routine locates the name of the ECP in the command processor and
returns its address in HL. All other registers are preserved.
:h
GETER1
This routine supercedes the same routine in Z3LIB. It examines the error
command line to determine if an error command is present or not. If none
is present, A=0 and the Z flag is set. If an error command line is present,
then A<>0, and NZ is returned. No other register is affected.
:i
GETER3
This routine returns the value of the command error flag in register A and
sets the flags accordingly. No other registers are affected.
:j
GETSFCB
This routine locates the submit FCB in the command processor and returns
its address in DE. If SUBMIT is not enabled or if ZCPR33 is not in memory,
then the routine returns with the Z flag set. All other registers are
preserved.
:k
GETSRUN
This routine determines whether or not a SUBMIT job is currently running.
If one is, the routine returns NZ. Only register AF is affected.
:l
GETSUB
This routine gets the XSUB input redirection flag into the A register. No
other registers are affected.
:m
HALTSUB
This routine stops a submit job by deleting the $$$.SUB file. It uses the
submit FCB in the command processor so that it adapts automatically to the
correct drive and file name and type. No registers are affected.
:n
HIGHUSER
This routine tests to see whether or not the command processor supports
user numbers above 15. If ZCPR33 is not running or if high user support
is disabled, then HIGHUSER returns with the zero flag set. No registers
except AF are affected.
:o
PARSE2
This routine calls the REPARSE entry point in the command processor to
reparse the command line pointed to by HL. It is the user's responsibility
to be sure that the command processor has not been overwritten in memory.
No registers are changed. The two default file control blocks are filled.
:p
PDEFDU
This routine puts the drive/user values in BC into the CURDR and CURUSR
bytes in the message buffer, making that directory the default directory. No
registers are affected.
:q
PUTER1
This routine supercedes the same routine in Z3LIB, and its purpose is to
disable the function. In ZCPR33 there is no way to turn external error
handling on and off other than loading or clearing the error command line.
The flag formerly used for this purpose is now used for the command error
flag, which indicates the kind of command error that was detected. This
replacement routine does nothing
:r
PUTER3
This routine stores the value in register A into the command error flag.
No registers are affected.
:s
PUTERC
This routine supercedes the same routine in Z3LIB and differs only in that
it limits the length of the error command line to 28 bytes, since the four
bytes at the end of the command line space have been assigned other purposes.
On entry, HL points to a null-terminated command string. This string is
copied to the error command line, if it will fit. If it will not fit, then
the error command line is cleared, and on return A=0 and the Z flag is set.
On exit, HL points to the character in the new command line just after the
last one copied. Other registers are preserved.
:t
PUTSUB
This routine stores the contents of the A register into the XSUB input
redirection flag. No registers are affected.
:u
QERROR
This routine returns Z if the command status flag in the message buffer has
the error bit set. Only register AF is affected.
:v
REPARSE
This routine calls the REPARSE entry point in the command processor to
reparse the command line starting one token later. It is the user's
responsibility to be sure that the command processor has not been overwritten
in memory. No registers are changed. The two default file control blocks
are filled.
:w
RESEPB
This routine resets the external program bit in the command status flag.
No registers are affected.
:x
RETCST
This routine returns the address of the command status flag in HL. None of
the other registers is affected.
:y
SCAN
This routine first initializes the FCB pointed to by DE and then calls the
SCAN entry point in the command processor to parse a single token pointed to
by HL into it. It is the user's responsibility to be sure that the command
processor has not been overwritten in memory. No registers are changed.
:z
SETEPB
This routine sets the external program bit in the command status flag. No
registers are affected.
:1
STOPXSUB
This routine resets the XSUB input redirection flag in the message buffer.
No registers are affected.
:2
SUBON
This routine tests to see if SUBMIT processing is enabled in the command
processor. If so, it returns NZ. It will return Z if SUBMIT is not enabled
or if the ZCPR33 command processor cannot be detected. Only register AF
is affected.
:3
Z33CHK
This routine checks to see that the version of the CCP that is running is
version 3.X. Two tests must be passed. First, the version byte must be 3xH.
Secondly, the byte at offset 3 must be a relative jump instruction (opcode
18H). If both tests pass, the routine returns with the zero flag set (Z).
Otherwise the flag is reset (NZ).
:4
Z33FNAME
This routine first initializes the FCB pointed to by DE and then calls the
SCAN entry point in the command processor to parse a single token pointed to
by HL into it. It is the user's responsibility to be sure that the command
processor has not been overwritten in memory. The routine returns with HL
pointing to the character the delimited the token. Valid delimiters are
space, comma, semicolon, equals, greater than, less than, underscore or any
control character less than space. No other registers are affected.