/prog/ - Boolean — World4ch

Name: Anonymous 2010-09-26 15:26

So, how much does /prog/ know about boolean logic?

I'll start you all off easy, what is the equivalent of
xor, eax eax?

(Don't give me shit about that being a machine code sample)

Name: Anonymous 2010-09-26 15:33

0

Name: Anonymous 2010-09-26 15:34

What are you talking about, programming has nothing to to do with boolean logic whatsoever.

Name: Anonymous 2010-09-26 15:53

Less of this.

Name: Anonymous 2010-09-26 15:55

sage

Name: Anonymous 2010-09-26 16:03

I'll start you all off easy, what is the equivalent of
xor, eax eax?
That doesn't mean anything.

Name: Anonymous 2010-09-26 16:33

This is so gay

Name: Anonymous 2010-09-26 16:53

>>1
(set! eax 0)

Name: Anonymous 2010-09-26 18:34

eax ^ eax

Name: Anonymous 2010-09-26 19:30

>>6
it's called polish notation

>>2
correct

>>1
IHBT

Name: Anonymous 2010-09-26 19:53

Boolean logic is easy. Learn boolean algebra (you know, the kind of lattice). It's also easy.

& = meet
| = join
~ = complement
0 = bottom
1 = top

Name: Anonymous 2010-09-26 19:54

>>11
Excuse me, missed a "-" on the 1. Should read:

-1 = top

Name: Anonymous 2010-09-26 19:55

hufflepuff

Name: Anonymous 2010-09-26 20:01

>>13
hufflepuff my anus

Name: Anonymous 2010-09-26 20:46

>>1
sets the content of the eax register to 0

Name: Anonymous 2010-09-26 20:49

>>15
forgot to mention, fasmfag here.

Name: Anonymous 2010-09-26 21:21

I've read Kleene, author of Kleene Star

Name: Anonymous 2010-09-26 22:52

>>16
Polecat kebabs.

Name: Anonymous 2010-09-26 23:22

>>17
I've included some Kleene stars below if you need extras, I bought too many of them when I was a CS student.

********************************************
***************************************
************
******************************************
**************************************
*******************************************
**********************

Please don't take them if you're not going to use them.

Name: Anonymous 2010-09-26 23:32

>>18
go away, kebabsfag

Name: Anonymous 2010-09-27 0:03

>>19
Are these compatible with my A-star implementation, or do I have to get them retrofitted somehow?

Name: Anonymous 2010-09-27 2:46

I've included some Klein stars but they collapsed

Name: Anonymous 2010-09-27 22:20

niggervaginas

Name: Anonymous 2010-09-27 22:25

>>23
*pussydicks

Name: Anonymous 2010-09-27 22:30

>>24
pussydicks is only correct on a 64-bit machine where eax > 2^32

Name: Anonymous 2010-09-27 23:04

>>25
eax is 32-bits even on x86-64 machines. I believe you are referring to rax, of which eax is the least-significant 32-bit subset.

Name: Anonymous 2010-09-27 23:20

>>26 Thanks for the correction :)

I don't know much about 64 bit processors.

Name: Anonymous 2010-09-28 6:49

>>26
rax my anus

Name: Anonymous 2010-09-28 18:16

Question 2:

~(a xor b) does what?

Name: Anonymous 2010-09-28 19:04

xor, eax eax?
That's bitwise, not boolean. ``faggot''.

Name: Anonymous 2010-09-28 22:39

>>29
~(a ^ b) = (~a) ^ b = a ^ (~b)

Name: Anonymous 2010-09-29 4:50

U MENA xor eax, eax

Name: Anonymous 2010-09-29 5:56

This thread has been closed and replaced with the following thread:

Subject: How do you pronounce ``xor, eax eax''?
Name:
Email:

1. zoreacksecks
2. exclusive-or extended accumulator register extended accumulator register
3. ecks-or ee-ay-ecks ee-ay-ecks (faggot)
4. xudder

Name: Anonymous 2010-09-29 6:17

>>33
3. ecks-or ee-ay-ecks ee-ay-ecks (faggot)
fuck you

Name: Anonymous 2010-09-29 6:34

zor meep meep

Name: Anonymous 2010-09-29 8:41

zoreackseacks

Name: Anonymous 2010-09-29 9:13

cksaw ee-ax ee-ax

Name: Anonymous 2010-09-29 10:58

DERP DERP DERP HURRR DERP NARF EX

Name: Anonymous 2010-09-29 10:59

egsor, ex, ex

Name: Anonymous 2010-09-29 11:00

Shouldn't that read `xor eax, eax' ?

Boolean

1 Name: Anonymous 2010-09-26 15:26

2 Name: Anonymous 2010-09-26 15:33

3 Name: Anonymous 2010-09-26 15:34

4 Name: Anonymous 2010-09-26 15:53

5 Name: Anonymous 2010-09-26 15:55

6 Name: Anonymous 2010-09-26 16:03

7 Name: Anonymous 2010-09-26 16:33

8 Name: Anonymous 2010-09-26 16:53

9 Name: Anonymous 2010-09-26 18:34

10 Name: Anonymous 2010-09-26 19:30

11 Name: Anonymous 2010-09-26 19:53

12 Name: Anonymous 2010-09-26 19:54

13 Name: Anonymous 2010-09-26 19:55

14 Name: Anonymous 2010-09-26 20:01

15 Name: Anonymous 2010-09-26 20:46

16 Name: Anonymous 2010-09-26 20:49

17 Name: Anonymous 2010-09-26 21:21

18 Name: Anonymous 2010-09-26 22:52

19 Name: Anonymous 2010-09-26 23:22

20 Name: Anonymous 2010-09-26 23:32

21 Name: Anonymous 2010-09-27 0:03

22 Name: Anonymous 2010-09-27 2:46

23 Name: Anonymous 2010-09-27 22:20

24 Name: Anonymous 2010-09-27 22:25

25 Name: Anonymous 2010-09-27 22:30

26 Name: Anonymous 2010-09-27 23:04

27 Name: Anonymous 2010-09-27 23:20

28 Name: Anonymous 2010-09-28 6:49

29 Name: Anonymous 2010-09-28 18:16

30 Name: Anonymous 2010-09-28 19:04

31 Name: Anonymous 2010-09-28 22:39

32 Name: Anonymous 2010-09-29 4:50

33 Name: Anonymous 2010-09-29 5:56

34 Name: Anonymous 2010-09-29 6:17

35 Name: Anonymous 2010-09-29 6:34

36 Name: Anonymous 2010-09-29 8:41

37 Name: Anonymous 2010-09-29 9:13

38 Name: Anonymous 2010-09-29 10:58

39 Name: Anonymous 2010-09-29 10:59

40 Name: Anonymous 2010-09-29 11:00