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Forum Index : Microcontroller and PC projects : How to use bit manipulation

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Canada_Cold
Regular Member

Joined: 11/01/2020
Location: Canada
Posts: 48

Posted: 03:32pm 06 Jul 2020

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Hi All,

I�m trying to understand how to use bit manipulation on an Micromite 28 pin device. In the statement �PRINT HEX$(X%, 16)� what does the second parameter �16� do?

The following is from the Micromite User Manual, MMBasic Ver 5.05, Page 38

X% = &HFFFF0000FFFF0044
Y% = &H800FFFFFFFFFFFFF
X% = X% AND Y%
PRINT HEX$(X%, 16)

I have tried changing the parameter, but it does not change the printed results.

I appreciate any help you can give me with this.

Don

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10578

Posted: 03:35pm 06 Jul 2020

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Try hex$(4) and hex$(4,16)

robert.rozee
Guru

Joined: 31/12/2012
Location: New Zealand
Posts: 2465

Posted: 04:13pm 06 Jul 2020

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it controls padding with zeros to the left. if your number can be represented in less than 16 digits, then it will be padded with leading zeros. try the following:

X% = &HFFFF0000
Y% = &H800FFFFF
X% = X% And Y%
Print Hex$(X%, 16)
Print Hex$(X%, 8)

>
> run
00000000800F0000
800F0000
>
>

cheers,
rob :-)

Canada_Cold
Regular Member

Joined: 11/01/2020
Location: Canada
Posts: 48

Posted: 09:22pm 07 Jul 2020

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Hi guys,

Thanks for the input, that�s great.

Thanks, Don

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