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DarkBASIC Discussion / xor command?

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watermark
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Posted: 25th Apr 2004 08:25
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did a search and nothing came up...

is there an eqiviliant command to xor in db? Other basic languages offer this command (xor is must be one but not both)

ex.

if x=1 xor y=1 then print "hey"
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medwayman
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Posted: 25th Apr 2004 10:22
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Not that i've seen
i guess you would have to do something like



Based on Amiga PD game Squigs. Early shots: http://www.custardsoft.pwp.blueyonder.co.uk/images/03.png

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Phaelax
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Posted: 25th Apr 2004 11:38
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There is, but if theres not a keyword, then I forget the symbol.

"eureka" - Archimedes
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pizzaman
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Posted: 25th Apr 2004 18:43
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have u tried xor cos im sure that xor works it just doesn't get highlighted by the ide
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watermark
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Posted: 25th Apr 2004 22:36 Edited at: 25th Apr 2004 22:36
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heh, of course I tried. I know it doesnt work in dbc. Thanks custard...kinda clutered tho, when it could be 1 line long. If anyone knows that symbol, plz post.
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medwayman
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Posted: 25th Apr 2004 22:52
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Based on what Phaelax said I messed a bit and found this worked

If x=1 <> y=1 then print “hey�



Based on Amiga PD game Squigs. Early shots: http://www.custardsoft.pwp.blueyonder.co.uk/images/03.png

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JoelJ
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Posted: 26th Apr 2004 04:24
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~ (shift + then button next to [1]) is xor in java c(++) etc, and im sure in DBP, but i asked this question about it in DBC a whiel back and got the answer "doesnt exist".

Do you model? contact me: [email protected]
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Lost in Thought
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Posted: 26th Apr 2004 08:16
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I think ~~ is xor according to the help files.

"BITWISE LEFT SHIFT signified by the symbol << will shift all bits one space to the left. %0111 << 1 becomes %1110.
BITWISE RIGHT SHIFT signified by the symbol >> will shift all bits one space to the right. %0111 >> 1 becomes %0011.
BITWISE AND signified by the symbol && will AND all bits of one value with another. %1111 && %0011 becomes %0011.
BITWISE OR signified by the symbol || will OR all bits of one value with another. %1111 || %0011 becomes %1111.
BITWISE XOR signified by the symbol ~~ will XOR all bits of one value with another. %1111 ~~ %0011 becomes %1100.
BITWISE NOT signified by the symbol .. will NOT all bits of the right value. %1111 .. %1010 becomes %0101."

at least while using it bitwise.

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medwayman
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Posted: 26th Apr 2004 22:52
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I think i’ve probably misunderstood what this command does. What Lost in Thought suggests works in pro but not in dbc.

Based on Amiga PD game Squigs. Early shots: http://www.custardsoft.pwp.blueyonder.co.uk/images/03.png

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Lost in Thought
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Posted: 27th Apr 2004 01:14 Edited at: 27th Apr 2004 01:15
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Yeah I don't use DBC I was just hoping it might be the same.

[Edit] But you can probably find it the same way I found it for DBP. Search for math in the help files of blue ide and it will show you all kinds of math operations.

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SandraD
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Posted: 29th Jul 2004 05:10 Edited at: 29th Jul 2004 05:17
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Ah-HA!

I found it!

I was actually searching around in the command list for another function I wanted, and discovered the following by accident;


& == Bit wise AND operation
1 & 3 returns 1
1 & 2 returns 0
2 & 3 returns 2

| == bit wise OR operatioin
1 | 2 returns 3
1 | 1 return 1

! == logical XOR operation
1 ! 0 returns 1
0 ! 0 returns 0
1 ! 1 returns 0
0 ! 1 returns 1
2 ! 1 returns 1 (based on bit zero I presume)

Any truly great code should be indisguishable from magic.
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