I suppose I should see about building a current version, as I seem to be in the middle of debugging several things by Braille... (Or is this simply a memory test for me :-)
This communication may not represent my employer's views, if any, on the matters discussed. On 27-May-13 11:48, Mark Pizzolato - Info Comm wrote:
On Monday, May 27, 2013 at 6:19 AM, Timothe Litt wrote:This thread is getting far too messy. The increment problem found by Rob is NOT subtle. It's just plain broken.I agree 100%. The code, as written, would write twice as much simulated memory as intended which usually would crash things nicely (and did when Rob tried with the DMC). I found that the ONLY current use (prior to Rob's DMC) of this routine was in the CD11 simulator and that use either might never actually get executed (if the CDCSR_V_PACK bit not been set), OR if it was actually executed it would have been with the constant byte count of 2 which should have written 1 16/18 bit word, but actually wrote 2 due to the bug. This may have never been exercised, OR writing the second word may have merely written the high bytes 18 bits of a word which was never referenced by the program...The mishandling of the high bits is what I meant when I wrote 'subtle'.Understood.
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