DELDOM (DELETE STANDARD DOMAIN)

MON 60 subfunction DELDOM = 131B (octal) = 0x59 = 89 decimal. NPL purpose (authoritative, 5P-P2-MON60.NPL, via SINTRAN/ND500/nd-500-mon/mon60-callers/SUBFUNCTION-TABLE.md): DELETE STANDARD DOMAIN, server handler IDLSYDOM.

Standard-domain family: 127B DEFDOM (define, see 127B-DEFDOM), 130B start (already carved as START-STANDARD-DOMAIN), 131B DELDOM (delete).

All addresses are OCTAL ND-100 word addresses, BANK 1, base 0. Source: SINTRAN/ND500/nd-500-mon/nd-500-mon-j04.prog.asm

Handler location

Item	Value	Status
Enclosing ENTER-routine	002662 (framesize 000331) - the command interpreter	PROVEN
MON 60 call site	007347 JPL I 42 -> ptr 007411, bank1[007411]=146715 = thunk SAA 131	PROVEN
Error path	007350 (callsite+1) -> ptr 007171 = routine 002673 (interpreter error reporter)	PROVEN
Success path	007351 (callsite+2) -> ptr 007376 = 010613 (command loop)	PROVEN

Thunk verification (PROVEN, read from bytes)

146715 170531 SAA 131 ; 146716 125001 JMP I 1 ; 146717 146244 (gateway).

MON 60 subfunction used

Subfn	Octal / Hex / Dec	Thunk	Parameter-block layout	Skip/Error
DELDOM	131B / 0x59 / 89	146715	,X 6 = the 3-word F descriptor from B-113 = the standard-domain name	err=007350->002673; ok=007351->010613

Only slot 6 is stored (007346 STF ,X 6, 3 words).

What it does

1. Loads the domain-name descriptor (F register, 3 words) from B-113. (007344)
2. Places it in gateway param slot 1 and issues MON 60 DELDOM. (007345-007347)
3. On error -> interpreter error reporter 002673; on success -> command loop 010613.

Unknown / inferred

• PROVEN: subfunction identity, thunk bytes, the single 3-word param store, and the error/success targets.
• PROVEN: the parameter is a 3-word F descriptor (LDF/STF) = the standard- domain name. Server handler IDLSYDOM deletes the standard domain.