116B UnfixSegment¶

Stub MON 116B (78 decimal) · Mnemonic UNFIX · Group: Segment Administration (manual section 2.12)

Available from: RT programs (manual compatibility box)

Emulation source: src/handlers/mon_116B_UnfixSegment.c

Description¶

Releases a fixed segment and removes it from the Page Index Table (PIT). Its pages may then be swapped from physical memory to the disk. Use FixScattered or FixContiguous to fix the segment.

You must use UnFixSegment or @UNFIX to allow the RT-LOADER to clear the segment.

Parameters¶

Name	Type	Direction	Description
`SegmentNumber`	INTEGER	In	Segment number to be released.

Direction: In = the program supplies the value, Out = the call returns it, In/Out = both.

Compatibility¶

Machines	Users	Programs
ND-100 and ND-500	User RT and user SYSTEM	RT programs

The manual's compatibility box for this call, word for word.

Yes/no fields from the YAML extraction (not in the manual's words):

ND-100	ND-500	User programs	RT programs	System programs
Yes	Yes	Yes	Yes	No

Examples¶

From the manual (OCR text, not corrected).

PLANCFORTRANPascalCOBOLASSEMBLY-500MAC

INTEGER : SegmentNumber

...

Monitor_Call('UnfixSegment', SegmentNumber)

INTEGER SegmentNumber
...
Monitor_Call('UnfixSegment', SegmentNumber)

SegmentNumber : INTEGER2;
...
UnFixSegment(SegmentNumber);

01 SegmentNumber COMP.
...
MONITOR-CALL "UnfixSegment" USING SegmentNumber.

SegmentNumber : W BLOCK 1
UnfixSegment : EQU 37B9 + 116B
...

CALLG UnfixSegment, 1, SegmentNumber

| LDA            | (PAR         | %Load register A with address of parameter list.  |
| MON 116        |              | %Monitor call UnfixSegment.                       |
| ...            |              |                                                   |
| PAR, SEGNO     |              | %Segment number to be unfixed.                    |
| ...            |              |                                                   |
| SEGNO, ...     |              |                                                   |

ndmonlib implementation¶

Stub Registered MON_STATUS_NOT_IMPLEMENTED: the handler is a stub. mon_dispatch() in src/core/mon_dispatch.c reports the call as unimplemented without calling it.


Handler	`mon_116B_UnfixSegment`
Code lines	6 (non-blank, non-comment lines in the file)

Source¶

SINTRAN III Monitor Calls (ND-860228.2 EN), page 553.