TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

TMPCOR [CALLI 44]
22.170 TMPCOR [CALLI 44]
FUNCTION
Creates, reads, writes, or manipulates temporary files left in core
from the running of one program to another. Those files are
referenced by a three-character file name. All files are deleted when
the job is logged out. If the monitor call fails, your program should
write DSK:nnnNAM.TMP, where nnn is the job number. This arrangement
improves response time and minimizes the number of disk reads.
CALLING SEQUENCE
MOVE ac, [XWD fcncode,addr]
TMPCOR ac,
error return
skip return
addr:
XWD
IOWD
'nam',O
buflength,buffer
In the calling sequence, the program supplies the following variables:
o
o
o
o
o
fcncode is one of the function codes described below.
addr gives the address of the argument list.
nam is a 3-character SIXBIT string that is the file name.
buflength is the length of the buffer for the call.
buffer gives the address of the buffer for the call.
The function codes and their meanings are:
Code
°
1
2
Symbol
. TCRFS
.TCRRF
. TCRDF
Function
Obtains free space. For this function, set the ac
to 0 before the call; no argument list IS
required. On a skip return, the ac contains the
number of free words available-to your program
(510 decimal) .
Reads a file. The length of the file is returned
in the ac, and as much of the file as possible is
copied into the buffer for the call. You can
check for truncation by comparing the ac to
buflength.
The error return occurs if the specified file is
not found; in this case, the number of free words
available to your program is returned in the ac.
Reads and deletes a file. Performs all the same
functions as .TCRRF and in addition deletes the
file. Note that the file is deleted even if it is
too long to fit in the buffer for the call.
22-436