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Re: problem with bcd and a number

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nephish schrieb:

> thanks for any tips on this.

I'll try.

In BCD a (decimal) digit is stored in a halfbyte (or a 'nibble'). So, in 
a byte
you can store two decimal digits. For instance 42 would be

nibble1 nibble2
0100     0010
4            2

 >>> c=0b01000010
 >>> c
66
 >>> c >> 4               # first nibble
4
 >>> c & 0b1111     # second nibble
2


So, a speed of 57% should be
LSB= 0111 0000
MSB= 0000 0101

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problem with bcd and a number nephish <nephish@gmail.com> - 2011-08-04 11:31 -0700
  Re: problem with bcd and a number Dave Angel <davea@ieee.org> - 2011-08-04 15:28 -0400
  Re: problem with bcd and a number Christoph Hansen <ch@radamanthys.de> - 2011-08-04 21:31 +0200
  Re: problem with bcd and a number Chris Angelico <rosuav@gmail.com> - 2011-08-05 16:32 +0100
  Re: problem with bcd and a number Peter Otten <__peter__@web.de> - 2011-08-05 17:52 +0200

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