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[gpsd-dev] ✘RTCM3 bug


From: Gary E. Miller
Subject: [gpsd-dev] ✘RTCM3 bug
Date: Wed, 20 Apr 2016 15:25:21 -0700

Yo All!

I'm narrowing down the RTCM3 thing, a simple sign extension problem in
old code.

On x86:

-{"class":"RTCM3","type":1087,"length":382,"data":["0x43","0xfffffff2","0x79","0x74","0x48",...

And on Pi/Wheezy:

+{"class":"RTCM3","type":1087,"length":382,"data":["0x43","0xf2","0x79","0x74","0x48"...

Notice the "0xfffffff2" v. ,"0xf2".  The top bit in the byte is sign extended
on the x86, and not on the pi.

My guess for now is the pi is correct.  Working on it.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

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