Trailing-Edge
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PDP-10 Archives
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decuslib10-11
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43,50544/scnblk.req
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! ... Require file "SCNBLK.REQ" ...
!
! This file is used to define the scanner status blocks
! which are used to switch the input context for the scanner.
! SCANNR has three possible contexts:
! 1) The normal input file (file 0)
! 2) An alternate input (require) file (file 2)
! 3) A character stream imbedded in a SYNONYM definition
! control comment, which can appear in either input file.
!
Field
in_field =
SET
chr = [0, 0, %BPVAL, 0], ! Current character
cp = [1, 0, %BPVAL, 0], ! Current character pointer
len = [2, 0, %BPVAL, 0], ! Length of current input line
col = [3, 0, %BPVAL, 0], ! Current visual column position
rem = [4, 0, %BPVAL, 0], ! No. of chars remaining in line
base = [5, 0, %BPVAL, 0], ! Base of macro- or plit-body
buf = [6, 0, %BPVAL, 0] ! Input line buffer follows this address
TES;
literal
buf_len = 132;
bind
scn_blk_size = !
6 + CH$ALLOCATION (buf_len);
! ... End of Require file SCNBLK.REQ ...