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decuslib10-05
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43,50337/23/scanfr.mac
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COMMENT * SIMULA specification;
OPTIONS(/E:CODE,scanfrac);
INTEGER PROCEDURE scanfrac(t); NAME t; TEXT t;
COMMENT Starting at t.Pos, scanfrac finds the next <grouped item> and returns its
value. T.Pos is moved past the item, except if no legal item is found.
In that case, scanfrac returns minfrac, the algebraically lowest value: -2^128+2^72.
;
!*;! MACRO-10 code !*;!
TITLE scanfrac
ENTRY scanfrac
SUBTTL SIMULA utility, Lars Enderin Dec 1975
;!*** Copyright 1975 by the Swedish Defence Research Institute. ***
;!*** Copying is allowed. ***
sall
search simmac,simmcr,simrpa
macinit
EXTERN .scan
;! Local definitions ;!
result==ZBI%S
t==result+1
scanfrac:PROC
LI XTAC,TXGF
BRANCH .scan
EPROC
LIT
END;