2's complement

[woodpecker 0]

I'm trying to convert 625 into its 12-bit 2's compliment and cant get my head around this easy conversion.

When I convert 625 directly to binary I get

00 0110 0111 0001 but cant remember what to do in order to change it to 12-bits.

Can I just drop the first two zeros? When I did that it changed the variable, thus the question.

thanks in advance,

BS

SONIC WOODY #146

There is a fine line between cockiness and confidence -- which side of the line are you on?

[shropshire 0]

>
Count to 12 from the right 0110 0111 0001

(.)Y(.)
Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome

[woodpecker 0]

So its okay to just drop numbers on the left to make it work and the computer will just fill them in as need be?

I ask because when I run the new binary number (minus the two 0's) it doesnt represent 625 anymore.



We jumping tomorrow?

SONIC WOODY #146

There is a fine line between cockiness and confidence -- which side of the line are you on?

[shropshire 0]

It's ages since I did this in school, so I'm a bit rusty... NOBODY does this shite!! Only school kids.


Sorry, I have chores to do sunday.... before I pick the Muvver-In-Law up next week

(.)Y(.)
Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome

[woodpecker 0]

Blah!

We will drop off Janes pressie on our way out saturday then.

SONIC WOODY #146

There is a fine line between cockiness and confidence -- which side of the line are you on?

[shropshire 0]

Actually the 2's compliment of a +ve number is the same i.e. 625 = 0010 0111 0001 in 2's compliemt representation (I Think)

(.)Y(.)
Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome

[shropshire 0]

Next saturday?

(.)Y(.)
Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome

[jimstermer 0]

Quote

I'm trying to convert 625 into its 12-bit 2's compliment and cant get my head around this easy conversion.

When I convert 625 directly to binary I get

00 0110 0111 0001 but cant remember what to do in order to change it to 12-bits.

Can I just drop the first two zeros? When I did that it changed the variable, thus the question.

thanks in advance,

BS

you do drop the first 2 zeros, dont know if there were needed in the first place in the problem or what but a 2's complement is just an inversion of all the bits plus 1

so 0110 0111 0001
becomes 1001 1000 1110
then add 1 so final answer is: 1001 1000 1111

if you have a TI-89 calculator it will do it for you too as well as conversions to hex and decimal from binary and vice versa

[happythoughts 0]

Somebody once told me that calendars are so confusing because OCT 31 is the same as DEC 25.

[Broke 0]

Why does everyone look at me funny when I dress like a ghost on christmas?

Divot your source for all things Hillbilly.
Anvil Brother 84
SCR 14192

[LisaH 0]

Quote

Why does everyone look at me funny when I dress like a ghost on christmas?

Dunno. Why?

Is this a riddle?

Be yourself!
MooOOooOoo

[woodpecker 0]

thanks for the assistance and the hijack!

SONIC WOODY #146

There is a fine line between cockiness and confidence -- which side of the line are you on?

[waltappel 1]

Quote

Why does everyone look at me funny when I dress like a ghost on christmas?

'cus it makes you look like a KKK guy?

Walt