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decus_20tap1_198111
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decus/20-0002/sailpd.fai
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COMMENT VALID 00002 PAGES
C REC PAGE DESCRIPTION
C00001 00001
C00002 00002 SAILPD -- a FAIL macro to define SAIL procedure descriptors
C00005 ENDMK
C;
;SAILPD -- a FAIL macro to define SAIL procedure descriptors
; (BAIL needs a procedure descriptor in order to call anything)
;
;Arguments are
; NAME must be defined as entry address, also used as name of proc
; PROCTYP type of procedure
; PPARMS number of parameters passed on P ('17) stack
; SPPARM number of parameters passed on SP ('16) stack
; (same as number of VALUE STRINGs)
; ARGTYPS list of argument types
;
;For a procedure corresponding to the SAIL declaration
; INTEGER PROCEDURE MYPROC
; (REFERENCE INTEGER I; STRING S; INTEGER J; INTEGER K[13])
;an acceptable macro call is
; SAILPD (MYPROC,INTEGR,3,1,<REFERENCE+INTEGR,STRING,INTEGR,
; INTEGR+DEFAULT+[=13]>)
;
DEFINE SAILPD (NAME,PROCTYP,PPARMS,SPPARM,ARGTYPS) <
BEGIN
XPUNGE ;NO SYMBOLS FROM THIS BLOCK IN .REL FILE
%PDLNK __ 6 ;PROCEDURE DESCRIPTOR LOADER LINK
DEFAUL __ 1=35
REFERE __ 1=34
QUES __ 1=33
BIND __ 1=32
PROCED __ 1=31
ITEM __ 1=30
LEAPAR __ 1=29 ;LEAP ARRAY, FOR ARRAY ITEMVAR ARRAY
NOTYPE __ 1=23
STRING __ 3=23
REAL __ 4=23
INTEGR __ 5=23 ;INTEGER IS FAIL RESERVED WORD
SSET __ 6=23 ;SET IS FAIL RESERVED WORD
LIST __ 7=23
CONTEX __ 13=23
RECPTR __ 15=23 ;RECORD!POINTER
ITEMVA __ 20=23
ARRAY __ 24=23
0 ;LOADER CHAIN
LINK %PDLNK,.-1
NAME ;ENTRY ADDRESS
FOR @$ ZOT E <NAME><1+>0 ;LENGTH
POINT 7,[ASCII/NAME/],-1
PROCTYP
2*SPPARM,,1+PPARMS
0 ;STACK DISPLACEMENTS
0 ;LOCAL VARIABLE INFO
.+4 ;PTR TO PARAM INFO
.-10,,0 ;PDA,,0
NAME,,0 ;PCNT AT MKSEMT,,PARENT'S PDA
NAME,,0 ;PCNT AT PRDEC,,JRST EXIT
FOR ZOT IN (ARGTYP)<
ZOT> ;PARAMETER TYPES
BEND>
;TITLE TEST
;MYPROC:0
; SAILPD (MYPROC,INTEGR,3,1,<REFERENCE+INTEGR,STRING,INTEGR,
; INTEGR+DEFAULT+[=13]>)
;END