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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure EPLIST Extended Parameter List DSECT
0000 0 Address 4 EPLCMD ADDRESS OF COMMAND TOKEN.
0004 4 Address 4 EPLARGBG ADDR OF BEGINNING OF ARGUMENTS.
0008 8 Address 4 EPLARGND ADDR OF END OF ARGUMENTS.
000C 12 Address 4 EPLUWORD USER WORD
00000010 EPL4LNBY *-EPLIST 4 WORD HEADER LENGTH IN
BYTES
00000002 EPL4LNDW (*-EPLIST+7)/8 4 WORD HEADER
LENGTH IN DWORDS
0010 16 Address 4 EPARGLST ADDRESS OF FUNCTION ARGUMENT
LIST.
0014 20 Address 4 EPFUNRET ADDRESS FOR RETURN OF FUNCTION
DATA.
00000018 EPL6LNBY *-EPLIST 6 WORD HEADER LENGTH IN
BYTES
00000003 EPL6LNDW (*-EPLIST+7)/8 6 WORD HEADER
LENGTH IN DWORDS
0018 24 Address 4 * (2) PADDING (FOR USE WITH SCAN MACRO)
0020 32 Character 8 EPLSCANT (0) BEGINNING OF TOKENIZED PLIST
BUILT BY SCAN MACRO.
0000000C EPLRSRVD EPLUWORD,4,C'A' (OLD NAME, FOR
COMPATIBILITY)
THE EXTENDED PLIST FLAGS INDICATE THE PRESENCE
OF AN EXTENDED PLIST IN REGISTER 0. THE HIGH
ORDER BYTE OF REGISTER 1 WILL CONTAIN EITHER
EPLCMDFL OR EPLFNCFL TO INDICATE THE EXTENDED
PLIST IS AVAILABLE. ONLY THE FIRST 4 WORDS
OF THE EXTENDED PLIST ARE AVAILABLE WITH THESE
CODES.
IF THE HIGH ORDER BYTE OF REGISTER 1 CONTAINS
EPFUNSUB, THEN THE INVOCATION IS AN EXTERNAL
FUNCTION/SUBROUTINE CALL FROM REX. WITH THIS
PLIST, ALL 6 WORDS OF THE PLIST ARE AVAILABLE.
WORD 5 POINTS TO A LIST OF DOUBLE WORD ADLENS
(ADDRESS-LENGTH PAIRS) WHICH DESCRIBE THE
ARGUMENTS TO THE ROUTINE (EPARGLST). WORD 6
(EPFUNRET) IS THE LOCATION FOR THE CALLED
ROUTINE TO STORE THE ADDRESS OF AN EVALBLOK
TO RETURN DATA TO THE CALLING PROGRAM.
.... 1.11 EPLCMDFL X'0B' EXTENDED PLIST AVAILABLE
FLAG.
.... ...1 EPLFNCFL X'01' EXTENDED PLIST AVAILABLE
FLAG.
.... .1.1 EPFUNSUB X'05' EXTERNAL FUNCTION PLIST
AVAILABLE
FLAG DEFINITIONS. EXCEPT AS NOTED, ONLY THE FIRST FOUR
WORDS OF THE EXTENDED PLIST ARE AVAILABLE.
EPLIST
FLAG VALUE AVAIL? MEANING
.... .... EPLFPROG X'00' N PROGRAM
.... ...1 EPLFCMND X'01' Y ADDRESS COMMAND
.... ..1. EPLFSBCM X'02' Y SUBCOM
.... ..11 EPLFNNUE X'03' Y NO NUCEXT, EXTENDED
.... .1.. EPLFNNUT X'04' N NO NUCEXT, TOKENIZED
.... .1.1 EPLFRXFN X'05' Y REXX EXTERNAL FUNCTION, 6
WORD EXTENDED PLIST PRESENT
.... .11. EPLFIMMD X'06' Y IMMEDIATE COMMAND
.... 1.11 EPLFSRCH X'0B' Y COMMAND SEARCH
...1 .... EPLFEXEC X'10' N INVOKED BY BPX1EXC
1111 111. EPLFENDC X'FE' N END OF COMMAND
1111 1111 EPLFABEN X'FF' N ABEND OR NUCXDROP
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