062B-HIDEF¶

MON 60 subfunction HIDEF = 62B = 0x32 = 50 decimal. NPL purpose (authoritative, 5P-P2-MON60.NPL): DEFINE HISTOGRAM, server handler IDEFHIST.

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

60B yaml client name = HIDEF (SET-HISTOGRAM command per INDEX.md 2.2).

Thunk (PROVEN, bytes read)¶

Addr	Word	Meaning
`146544`	`170462`	`SAA 62` (subfunction 62B)
`146545`	`125001`	`JMP I 1` (-> gateway pointer)
`146546`	`146244`	pointer to gateway `146244`

Call site(s)¶

Item	Value	Status
MON 60 call site	040133 `JPL I 13` -> ptr `040146`, `bank1[040146]=146544` = thunk `SAA 62`	PROVEN
Error path (callsite+1)	040134 `JPL I 6` -> routine 177327 = LEAVE-with-value (propagates error code)	PROVEN
Success path (callsite+2)	040135 `JPL I 12` -> routine 177335 = LEAVE-SKIP (normal skip return)	PROVEN
Enclosing ENTER routine	040050 (framesize 000010) - a standalone ENTER routine	PROVEN (prologue `RADD AD1 CLD SL DX`+ENTER)

Parameter block (PROVEN stores)¶

Slot	Store	Value
`,X 6`	`040125 STA ,X 6`	parameter 1 = `&(B-172)`
`,X 7`	`040127 STA ,X 7`	parameter 2 = value loaded by `040126 LDA 15`
`,X 10`	`040132 STA ,X 10`	parameter 3 = `&(B-166)`

Gateway convention (prog.md sec 4.4): LDX ,B -176 sets X = stack top; STx ,X 6/7/10 are MON 60 parameters 1/2/3.

What it does¶

Builds three parameters: &(B-172), a constant/global from LDA 15, and &(B-166). (040122-040132)
Issues MON 60 HIDEF to define a histogram. (040133)
On error LEAVEs with the error code (177327); on success LEAVE-SKIP (177335).

Unknown / inferred¶

PROVEN: three parameters at ,X 6/7/10 (040125/040127/040132).
INFERRED (semantic): B-172/B-166 are histogram-definition fields (range/buffer); LDA 15 is a fixed operand - exact meaning not carved.
PROVEN (role): 177327 = LEAVE-with-value, 177335 = LEAVE-SKIP (compiler runtime).
INFERRED: DEFINE HISTOGRAM / IDEFHIST from SUBFUNCTION-TABLE.md; thunk SAA 62 PROVEN.

octal=hex=decimal: 62B = 0x32 = 50 decimal