 | | Re: BCD [DAT]
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| (...) As far as BSD goes; every decimal digit is represented by four binary digits: decimal BCD 0 0000 1 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 1001 so that a number like 3725 would be represented by 0011 0111 0010 0101 I've never (...) (27 years ago, 2-Apr-97, to lugnet.robotics.handyboard)
| | | | | Re: BCD
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| Yeah, it helps alot. Thanks. I guess the half-cary is for adding to the next significant 4 bit word. And the current word, including overflow, is then subtracted by ten (1010), if the half-carry is flaged, to yield the proper BCD word. Is this what (...) (27 years ago, 3-Apr-97, to lugnet.robotics.handyboard)
| | | | | Re: BCD
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| Mar, The half carry (H) bit in the CCR sets if there is a carry from bit 3 to bit 4: in other words when there is a carry from the low hex digit to the high hex digit. Only the DAA instruction is affected by the state of H. For example: LDAA #$5A (...) (27 years ago, 3-Apr-97, to lugnet.robotics.handyboard)
| | | | | hbsonar
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| I am trying to run 4 sonar sensors from the HB, and I'm not sure how to go about doing this. I have a copy of the code from the ftp://cherupakha.med...ntrib/kent directory, but I'm pretty bad with assemby language and I'm not sure what I would need (...) (27 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
| | | | | Re: hbsonar
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| Check out the multiplexing circuit that I designed. It's on the HB webpage. Can't remember the URL, but you will find a link under my URL (see below) via Mouse 'Data'... I'll be happy to correspond with you on this after I've completed my finals (1 (...) (27 years ago, 25-Apr-97, to lugnet.robotics.handyboard)
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