INDEX - F77 supplied subroutine subprograms

ATTACH: Access existing permanent file.
BREAK: Call a user-defined subroutine each time the "break" key is pressed at the terminal.
BRKMSG: Defines message to be displayed at the terminal each time the "break" key is pressed.
CALLGT: Call a time sharing subsystem and terminate control
CALLSS: Call a time sharing subsystem.
CHAIN: Allow an ASCII time sharing F77 program that is too large to fit into main memory to be executed as a sequence of smaller programs.
CNSLIO: Console communications.
CONCAT: Move character substring.
CORFL: Move data from/to 10-word file.
CORSEC: Memory allocation x processor time
CREATE: Create temporary mass storage or terminal file.
CRPRM: Create permfile.
DATIM: Get current date and time.
DEFIL: Create temporary file
DETACH: Deaccess current file
DUMP: Dump designated area of memory in specified BCD format and terminate execution.
DUMPA: Dump designated area of memory in specified ASCII format and terminate execution.
DVCHK: Divide check test.
EXIT: Flush buffers to an external device and terminate the current activity.
F7EXOF: Disable hex operations by turning on bit 32 in the indicator register.
F7EXON: Enable hex operations by turning on bit 32 in the indicator register.
F7MAXN: Provides control over quantity of overflow, underflow and divide check error messages printed.
F7NOHX: Allow a F77 program executing in hex mode to call a subroutine that requires hex to be turned off.
FCLOSE: Close file, flush, and release buffers.
FMEDIA: Output transliteration.
FPARAM: Set or reset I/O parameter.
FXDVCK: Divide and check fault test.
FXEM: Placement of error code, display of error trace, alter FXEM switch word. Set alternate error procedure location, alternate error return.
ISOBIT: Perform the transfer of bit values between a location and a single word entity.
ISORT: Sort in ascending order.
ISORTD: Sort in descending order.
JSTAT: Return the status code for an SNUMB which is passed to it.
LINK: Restore link and transfer to its entry point.
LLINK: Restore link and return to next statement in calling subroutine.
LSNUM: Return the SNUMB of the most recently submitted batch activity.
MATH: Collection of mathematical functions.
MEMSIZ: Memory allocated.
NBREAK: Restore "break" to its previous status prior to a CALL BREAK.
NBRKS: Return the number of times the "break" key was pressed since last CALL BREAK.
OFFBIT: Set a specified bit in a designated location to 1.
ONBIT: Set a specified bit in a designated location to 0.
PDUMP: Dump designated area of memory in specified BCD format, and return.
PDUMPA: Dump designated area of memory in specified ASCII format, and return.
PTIME: Processor time used for this activity.
RANSIZ: Specify record size of direct access file.
SBITS: Perform the transfer of bit values between a location and a single-word entity.
SETMOD: Set I/O mode.
SLITE: Clear all sense lights, turn on sense light.
SLITET: Test and turn off sense lights.
SORT: Sort in ascending order.
SORTD: Sort in descending order.
SSWTCH: Test sense switch.
TERMNO: Station code.
TERMTM: Hours of log-on.
TSACC: Permit a program to receive up to 1920 characters of input data from a VIP7700 or VIP7760 terminal operating in forms mode.
TSDSP: Permit a program to transmit up to 1970 characters of data to a VIP7700 or VIP7760 terminal operating in forms mode.
USRCOD: User identification.
WRAP: Execute a user-defined procedure upon abnormal program termination.

Callable portions of the F77 Debugging System

ATCALL: Add subroutine to wrapup for abnormal terminations.
FDEBUG: Call dynamic debugging module and read debugging requests.
FDUMP: Write a symbolic dump of the number of most recently entered subroutines to file-code.
FTERM: Cause immediate termination and avoid calling any of the subroutines in the wrapup list.
FTIMER: Invoke the time measurement system.
NOCALL: Exclude the subroutine from the wrapup list.
NTCALL: Add the subroutine to the wrapup list when program terminates normally.