How to use the LOOKDOWN command?
Archiver
Posts: 46,084
my question is in the sample program below i want to know how to
change all the constants in the beginning x1,x2,x3,etc... into a
lookdown command to be used with the lookup command which is already
in the code...
'{$STAMP BS2}
TB_POS VAR BYTE
X VAR WORD
x0 CON 650
x1 CON 660
x2 CON 670
x3 CON 680
x4 CON 690
x5 CON 700
x6 CON 710
x7 CON 720
x8 CON 730
x9 CON 740
x10 CON 750
x11 CON 760
x12 CON 780
x13 CON 790
MAIN:
LOOKUP TB_POS MIN 2 MAX 15 -2
[noparse][[/noparse]X0,X1,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,X13],X
PULSOUT 12,X
GOTO MAIN
*** as you see i already have the lookup command set in there , ive
tried to do it my self but i couldnt figure out which variables
needed to be defined with there location inside the lookdown
command...
Sean...
change all the constants in the beginning x1,x2,x3,etc... into a
lookdown command to be used with the lookup command which is already
in the code...
'{$STAMP BS2}
TB_POS VAR BYTE
X VAR WORD
x0 CON 650
x1 CON 660
x2 CON 670
x3 CON 680
x4 CON 690
x5 CON 700
x6 CON 710
x7 CON 720
x8 CON 730
x9 CON 740
x10 CON 750
x11 CON 760
x12 CON 780
x13 CON 790
MAIN:
LOOKUP TB_POS MIN 2 MAX 15 -2
[noparse][[/noparse]X0,X1,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,X13],X
PULSOUT 12,X
GOTO MAIN
*** as you see i already have the lookup command set in there , ive
tried to do it my self but i couldnt figure out which variables
needed to be defined with there location inside the lookdown
command...
Sean...
Comments
what you're wanting? If so, what is the control variable (that is
compared with the table entries). Also, LOOKDOWN allows an optional
comparison operator, so you can look for the first value that is greater
than the control variable (for example).
What -- specifically -- are you trying to accomplish?
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Original Message
From: djrevolution99 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ByUG-AQTFC8FeRxdi2mesS_OfKay206IsIhEzESiY1YSz_AkPfVo7x755F5JdlE2qfejc1IdAVMr86rGwEg]djrevolution99@y...[/url
Sent: Saturday, October 11, 2003 10:21 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] How to use the LOOKDOWN command?
my question is in the sample program below i want to know how to
change all the constants in the beginning x1,x2,x3,etc... into a
lookdown command to be used with the lookup command which is already
in the code...
'{$STAMP BS2}
TB_POS VAR BYTE
X VAR WORD
x0 CON 650
x1 CON 660
x2 CON 670
x3 CON 680
x4 CON 690
x5 CON 700
x6 CON 710
x7 CON 720
x8 CON 730
x9 CON 740
x10 CON 750
x11 CON 760
x12 CON 780
x13 CON 790
MAIN:
LOOKUP TB_POS MIN 2 MAX 15 -2
[noparse][[/noparse]X0,X1,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,X13],X
PULSOUT 12,X
GOTO MAIN
*** as you see i already have the lookup command set in there , ive
tried to do it my self but i couldnt figure out which variables
needed to be defined with there location inside the lookdown
command...
Sean...
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