bcd 16 bits to bin

Fagundes:

I don't know in C, but I have a routine in .ASM.

If you need, tell me.

Sorry, my English is bad.....

Andres.

Cordoba - Argentina.

Fagundes Elrica escribi
Ok, but in the other side?

I get the number 1320 in BCD and i want to convert in bin (or hex). How i do that?

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To: p...
From: e...@online.no
Date: Sun, 3 Jun 2007 18:07:58 +0200
Subject: Re: [piclist] bcd 16 bits to bin

"Just keep in mind the weight of each bcd digit in a binary number is 16... " So...
(16x16x5) + (16x1x2) + (1x8) = 1320(dec) And for 3C7E(hex), vhich is 15486(dec):
(16x16x16x3) + (16x16xC) + (16x1x7) + (1xE) = 15486(dec)
12288 + 3072 + 112 + 14 = 15486(dec) Keep in mind that mul by 16 can be done by:
-Rotate Left 4 times
-Loading a nibble(4bits)
-Swapping nibbles, and merging / masking For the digit multiplication you'll probably have to use a proper multiplication routine,
minimum a 4by8 , with 12 or 16bit output.
Fagundes Elrica wrote: Ok! But if my number is a 16 bits value? Example= 1320 (bcd) = 528 (hex) --- How i do the conversion??

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To: p...
From: e...@online.no
Date: Sun, 3 Jun 2007 11:52:03 +0200
Subject: Re: [piclist] bcd 16 bits to bin
This is not C but...
E.g
9A(bcd)
01(9) 1010(A) (bin)
(16x9) + (1xA) = 154(dec) Just keep in mind the weight of each bcd digit in a binary number is 16...
So for a 2-digit BCD number you simply multiply the MSD by 16, and then add the LSD and you have the binary. OK?
falcosms wrote: Hi I need a code example for conversion of a 16 bits BCD data in BIN , in
C (ccs PIC) []s Marcelo
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LAST UPDATED: 23/08/2003
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