{“request object”} If 0 <= n < X’C0000000' and n isn’t kt then RF(n;PSB,M,W,EXIT) has the following effect:

If PSB is not an official prompt space bank then EXIT is returned to with return code 1
{1Feb85} and a string of (4,0).

Otherwise a domain D is created from F’s domain creator with PSB.
If PSB hasn’t enough space then return code 2 is returned to EXIT.

{1Feb85}The domain creator is called by DC(12;PSB,FM,W ==> c;D). FM is the factory’s meter, not the requestor’s {to help ensure promptness}. If the return code c is nonzero, it is returned to EXIT with a string of (4,19).

D’s domain keeper is F’s .keeper.
If X is viewed by F as a requestor’s key then G(X) is K from X(2;PSB,M,W ==> c;K). Otherwise G(X) is X.

{1Feb85}In the above call, the meter M passed is the factory’s meter, not the requestor’s. If the return code c is nonzero, it is returned to EXIT with a string of (4,n) where n is the component number of X (16, 17, or 18).

A component X is viewed as a requestor’s key by a factory F if X was installed as a component by the “install requestor’s key” command.

D’s address segment key depends on F’s program:
The factory installs a key for the “domain’s” addressing segment that depends on the value of the starting address and how compnent 17 was installed. Let K17 be the component 17 key. If the starting address is -1 or -3, then K17(0 ==> c;K) yields K and K is installed as the addressing segment. If K17 was installed as a scrutable key then K17(2;PSB,M,W==> K) yields K and K is installed as the addressing segment. Otherwise the initial addressing segment is K17.

D’s slot C10 is F’s .symbol segment.

The general key slots of D hold:

Slot 0: a fetch key to a node with the first 16 .components of F.

Slot 1: If the factory’s starting address is -3, this slot has PSB {for the case when using the binder and W isn’t a bank}, otherwise this slot has W.

Slot 2: (2016: EXIT) the resume key from invoker of requestor’s key

Slot 3: a domain key to D with C3 rights

Slot 4: PSB {guaranteed official and prompt}.

Slot 5: M.

Slot 6: The factory’s domain creator without destroy rights

Slot 7: If the factory’s starting address is -1 or -3, this slot has the .factory’s .program {normally an l-seg factory}, otherwise it is empty.

Slot 15: If the factory’s starting address is -3, this slot has W, otherwise it is DK(0).

Other slots are DK(0).

D’s meter is M.
{1Feb85}{arcane}M is installed in D just before D is started. This makes possible a strategy which uses M for all subsequent resources while keeping RF prompt, in the case where the domain creator is a virtual domain creator.

R10 holds F’s ordinal. R11 holds the order code n. If the factory’s starting address is -1 or -3 then R6 also holds the ordinal. {The l-seg number will be taken from the low 12 bits of the ordinal.} The other registers hold constants.

The PSW is X’0F0300000000’ plus the starting address, or, if the latter is -1 or -3, 16.

{nonref}We do not provide for a byte string argument to RF. To do so would require that private read/write memory be provided to D by the factory. Additional data can be passed by an extended jump protocol (p3,ejp).

On 6-Mar-85 the time of this operation plus undoing it is about 17 ms on a 4341.

c=0 and RFX is a fetcher or requestor’s key to a factory with no .holes except for those of RF or

c=1 and RFX is a fetcher or requestor’s key to a factory with .holes other than those of RF or

c=2 and RFX is not a fetcher or requestor’s key.

For the purpose of this operation, FACTORYC is treated as though it is a requestor’s key to a factory with no holes.

{1Feb85}So are official domain creators DC without destroy rights, and FCC.