Sharp PC-1500 - Page 96

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F.6. POINT
The POINT furlction returns a number which represents the pattern of ac ti vated dots \•1 ithin
the given column. Thus, the POINT function allo .. vs the "sensing" of any co lumn on t he di sp l ay
und er prograrn cont r ol.
The format of the PO INT function is:
POINT position -e xpression
... ,he re :
position-expression evaluates to a number in the range 0 to 155 and represents the colu mn to
be in vest ig ated.
TI1 e value returned by the POINT function is ;-i num be r in the ran ge 0 to 127. The interpreta·
tion of th is numl >er is a sum of po\ ·\'ers of 2 as explained in the section on GPR IN T .
As an illustration assume that on the display is a capit al I in colu mns 40 through 44:
1 - - * - i+: - • --
2 ---- · ----
4 --- - · - - --
8 -- -· - · ----
16 - - - - • - - - -
32 - - - - • - - - -
64 - - t:- • - * --
4 4 4 4 4
0 2 3 4
The express ion:
POINT 40 would return 0,
POINT
4 t would return 65,
P OI NT 42 would return 127.
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