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ritchie
Joined: 13 Sep 2003
Posts: 87
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| integer number to hex |
 Posted: Mon Jan 12, 2004 4:19 am |
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Mabuhay!
Anybody had an idea in converting an integer number to hex.
say: 16 ----> 0x16, 20 ---> 0x20
Anyone in the community who can provide help, snippet or any info.
Thank u. |
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Ttelmah
Guest
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| Re: integer number to hex |
| Posted: Mon Jan 12, 2004 4:56 am |
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| ritchie wrote: | Mabuhay!
Anybody had an idea in converting an integer number to hex.
say: 16 ----> 0x16, 20 ---> 0x20
Anyone in the community who can provide help, snippet or any info.
Thank u. |
printf...
If you have a number '16' say, stored in a variable called 'value', then:
printf("0x%02x",value);
will output '0x10' to the current default output stream.
The 'sprintf' version will allow this to be sent to a string instead.
Best Wishes |
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chingB
Joined: 29 Dec 2003
Posts: 81
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| Re: integer number to hex |
| Posted: Mon Jan 12, 2004 7:55 am |
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| Ttelmah wrote: | | ritchie wrote: | Mabuhay!
Anybody had an idea in converting an integer number to hex.
say: 16 ----> 0x16, 20 ---> 0x20
Anyone in the community who can provide help, snippet or any info.
Thank u. |
printf...
If you have a number '16' say, stored in a variable called 'value', then:
printf("0x%02x",value);
will output '0x10' to the current default output stream.
The 'sprintf' version will allow this to be sent to a string instead.
Best Wishes |
printf("0x%02x",value); ---> is it possible to store the result of the printf function to an array (.e.g. result[0] = 0x10)?
comments please...
thank u. |
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Ttelmah
Guest
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| Re: integer number to hex |
| Posted: Mon Jan 12, 2004 8:44 am |
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| chingB wrote: | | Ttelmah wrote: | | ritchie wrote: | Mabuhay!
Anybody had an idea in converting an integer number to hex.
say: 16 ----> 0x16, 20 ---> 0x20
Anyone in the community who can provide help, snippet or any info.
Thank u. |
printf...
If you have a number '16' say, stored in a variable called 'value', then:
printf("0x%02x",value);
will output '0x10' to the current default output stream.
The 'sprintf' version will allow this to be sent to a string instead.
Best Wishes |
printf("0x%02x",value); ---> is it possible to store the result of the printf function to an array (.e.g. result[0] = 0x10)?
comments please...
thank u. |
The number in a value, is allready in _binary_. Numbers are not stored in decimal on a processor like this. Hence if you store the value '16' (decimal), into a memory cell, it will contain
00010000
Which is also representable as '0x10'.
The numeric 'forms' '16', and '0x10', are just different ways of representing the number. Normally a conversion to decimal has to be performed on the output.
printf, allows you to convert the internal numeric form into ASCII characters (so %2x, with this incoming number, will generate the characters '1' (0x31), and '0' (0x30)). You can store these two seperate values into a string array by using the sprintf version, but you _cannot_ store both these digits into a single integer, since you now need 16bits of storage to hold the two characters.
It'd be better if you described what you actually want to do.
Best Wishes |
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Neutone
Joined: 08 Sep 2003
Posts: 839
Location: Houston
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| Re: integer number to hex |
| Posted: Mon Jan 12, 2004 8:50 am |
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| chingB wrote: | | Ttelmah wrote: | | ritchie wrote: | Mabuhay!
Anybody had an idea in converting an integer number to hex.
say: 16 ----> 0x16, 20 ---> 0x20
Anyone in the community who can provide help, snippet or any info.
Thank u. |
printf...
If you have a number '16' say, stored in a variable called 'value', then:
printf("0x%02x",value);
will output '0x10' to the current default output stream.
The 'sprintf' version will allow this to be sent to a string instead.
Best Wishes |
printf("0x%02x",value); ---> is it possible to store the result of the printf function to an array (.e.g. result[0] = 0x10)?
comments please...
thank u. |
If value is an array this is valid.
Int8 value[20];
Then the asci characters can be read from the array one at a time. |
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ritchie
Joined: 13 Sep 2003
Posts: 87
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| Posted: Mon Jan 12, 2004 5:53 pm |
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Mabuhay!
I am interested on how can I convert like the figures shown below:
say: 16 ----> 0x16, 20 ---> 0x20
Not: 16 ----> 0x10, 20 ---> 0x14
Would this be possible? any idea or info might do?
Thank u. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Mon Jan 12, 2004 6:02 pm |
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| Quote: | I am interested on how can I convert like the figures shown below:
say: 16 ----> 0x16, 20 ---> 0x20 |
At the end of this thread, there is a bin2bcd() function
which hopefully will solve your problem.
http://www.ccsinfo.com/forum/viewtopic.php?t=10393 |
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dyeatman
Joined: 06 Sep 2003
Posts: 1934
Location: Norman, OK
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| Conversion |
| Posted: Mon Jan 12, 2004 7:31 pm |
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Seeing the responses above, I for one am at a loss for what you are trying to do.
Apparently you are not trying to convert the number from integer to hex but take a number that you already consider a hex number and turn it into a string representation?
If I am understanding you correctly, you want to simply want to turn the number 16 into a string representation "0x16"? Or am I totally off base?
If this is your objective, one way is to separate the two numbers (ones and tens) and add the ascii char offset to each one ()i.e. 1+48+"1", 6+48="6") to make them the ascii equivalent then add them to a string starting with "0x". You will, of course, have to test for the chars A-F and add 65 to them.
This may be all a pile of crap if I am off base here... Oh well...... |
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chingB
Joined: 29 Dec 2003
Posts: 81
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| Re: Conversion |
| Posted: Mon Jan 12, 2004 11:24 pm |
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| dyeatman wrote: | Seeing the responses above, I for one am at a loss for what you are trying to do.
Apparently you are not trying to convert the number from integer to hex but take a number that you already consider a hex number and turn it into a string representation?
If I am understanding you correctly, you want to simply want to turn the number 16 into a string representation "0x16"? Or am I totally off base?
If this is your objective, one way is to separate the two numbers (ones and tens) and add the ascii char offset to each one ()i.e. 1+48+"1", 6+48="6") to make them the ascii equivalent then add them to a string starting with "0x". You will, of course, have to test for the chars A-F and add 65 to them.
This may be all a pile of crap if I am off base here... Oh well...... |
What I am trying to is this.... I have a number variable say, numb1 with a value 16. Then the value of numb1 is translated to a hex value which hnumb1 = 0x16 --> this a hex value.
PCM Programmer have already provided me a solution using the bin2bcd() function.
I guess you got my point here...
Thanx |
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chingB
Joined: 29 Dec 2003
Posts: 81
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| Re: Conversion |
| Posted: Mon Jan 12, 2004 11:28 pm |
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| dyeatman wrote: | Seeing the responses above, I for one am at a loss for what you are trying to do.
Apparently you are not trying to convert the number from integer to hex but take a number that you already consider a hex number and turn it into a string representation?
If I am understanding you correctly, you want to simply want to turn the number 16 into a string representation "0x16"? Or am I totally off base?
If this is your objective, one way is to separate the two numbers (ones and tens) and add the ascii char offset to each one ()i.e. 1+48+"1", 6+48="6") to make them the ascii equivalent then add them to a string starting with "0x". You will, of course, have to test for the chars A-F and add 65 to them.
This may be all a pile of crap if I am off base here... Oh well...... |
What I am trying to is this.... I have a number variable say, numb1 with a value 16. Then the value of numb1 is translated to a hex value which hnumb1 = 0x16 --> this a hex value.
PCM Programmer have already provided me a solution using the bin2bcd() function.
I guess you got my point here...
Thanx |
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