32-bit Variables and DIV32, Hourmeter 99999.9

[Darrel Taylor]

Hi Peter,

Sure, you can do it.

First off, you'll need to lose one of zero's from that 1,250,000,000

If you start off with 125,000,000 it brings it down to a managable range.

125,000,000 / 32000 = 3906.2
125,000,000 / 6200 = 20161.2

Then you have most of the number from the integer portion, and the last digit is in the remainder, in the form of a Modulas. By dividing the (Modulas*10) by the original divisor, you can recover the last digit.

<font color="#000000"><b>Temp       </b><font color="#008000"><b>VAR  WORD</b></font>
<b>Divisor    </b><font color="#008000"><b>VAR  WORD
</b></font><b>Remainder  </b><font color="#008000"><b>VAR  WORD

</b></font><font color="#0000FF"><b><i>;----[Load a 32-bit constant into PBP registers, Prior to DIV32]--------
</i></b></font><font color="#008000"><b>ASM
</b></font><font color="#000080">PutMulResult macro Const32
    MOVE?CB   low Const32, R2
    MOVE?CB   low (Const32 &gt;&gt; 8), R2 + 1
    MOVE?CB   low (Const32 &gt;&gt; 16), R0
    MOVE?CB   low (Const32 &gt;&gt; 24), R0 + 1
  endm
</font><font color="#008000"><b>ENDASM

</b></font><b>Divisor </b>= <b>6200
</b><font color="#000080">@  PutMulResult   125000000
</font><b>Temp </b>= <font color="#008000"><b>DIV32 </b></font><b>Divisor
Remainder </b>= <b>R2 </b>* <b>10
Remainder </b>= <font color="#008000"><b>DIV32 </b></font><b>Divisor
</b><font color="#008000"><b>LCDOUT  </b></font><font color="#FF0000">&quot;Result=&quot;</font>,<font color="#008000"><b>DEC </b></font><b>Temp</b>,<font color="#008000"><b>DEC1 </b></font><b>Remainder</b>

Result = 201612

HTH,
  Darrel

[palmed]

Hi, Darrel,

thanks a lot. After all, the answer was contained in some postings before, but sometimes you "don't see the trees in the wood" (correct saying?).

I tested it and it works great!

Peter

[Charles Linquis]

Darrel,

You constantly amaze me. What would this forum do without you?

[mister_e]

probably just trying to use the PBP statement stated in the manual or ... hum hum.. change to another boat... wich, after trying, i reaaaallly don't recommend

[Darrel Taylor]

Thanks Charles,

And, without me... The forum would be reading a lot more SPAM from PCB houses in China.   Love that delete command.

But, with over 2400 posts, I'm wondering what we'd do without mister_e.
Glad he didn't like the other boat. He makes up for like 10 people.

DT

[mister_e]

The first one to blame here is Bruce... if i'd never discover his website, i'd never buyed this addictive compiler... can't live without! Chances are that the other boat wasn't buyed from him... i would hate him now LMAO!

Well thanks to the forum ! I learn almost everything here by trying to help other with their questions. Learning by trying/debugging never killed.. kinda challenge. My avatar choice says long It also give me a better english.. oh yeah far to be perfect but better than before... i guess... i hope. Where are my firsts posts?

Thanks Darrel, Bruce, Melanie and all other gurus... i wish one day i'll be as good as you are!

[charudatt]

Thanks steve for your tip in #6 on the other boat. I was about to buy it.

Thanks once again for sharing your wisdom on this forum, which goes to all the guru's.

really appreciate help from all.

regards