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I.7. Interface to INFOR$
Extended Mode Interface to SYSLIB
The INFOR$ routine is called with the EM$INFOR PROC. The packet for the INFOR$
routine is generated with the EM$INFORPKT PROC.
The EM$INFOR PROC calls the INFOR$ routine in the SYSLIB common bank.
Calling Sequence:
EM$INFOR pkt,b-reg [func,param]
where:
pkt
b-reg
func
param
The label (18-bit offset from zero) of the packet generated by the EM$INFORPKT
PROC.
The B-register of the bank containing the packet generated by the EM$INFORPKT
PROC.
The code for which INFOR$ function to perform. See Table I–6 for a list of possible
function codes.
An additional parameter for some function codes. See Table I–7 for a list of possible
parameter values.
The func and param parameters are optional; if they are omitted, EM$INFOR uses the
values contained in registers A1 and A2 (and A3 for function code 4), respectively.
Table I–6 contains the function codes that may be used in the EM$INFOR PROC call.
Table I–6. EM$INFOR Function Codes
Code Description
1 Read the INFOR table (RINF$).
2 Search INFOR for a specification subfield (SINF$).
3 Transfer a field to the ELT$ table (SELT$).
4 Dynamically attach a use name to a file (DUSE$).
7833 1733–004 I–13