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AR# 5824

1.5i Map - FATAL_ERROR:xvkma:xvkmapper.c:1691:1.113 - Cannot satisfy LOC/RLOC constraint

説明



FATAL_ERROR:xvkma:xvkmapper.c:1691:1.113 - Cannot satisfy LOC/RLOC constraint
on comp $I30/$1I79/$I30/I7 Process will terminate. Please call Xilinx
support.


A case has been seen where map can not pack a configuration where a CYMUX drives an FMAP equivalent to a 2 input XOR.

ソリューション

This is a problem with XORCY conversion code, the user has a FMAP which after
simplification (constant pushing, etc), becomes a 2 input XOR gate, which happens to
have one of the input driven by a CYMUX. We convert it to XORCY and thus prevent it
from being packed into the desired slice.

This problem can be worked around by seeting the following environment variable
which forced the use of a different carry merge algorithm:

setenv XVKMAP_OLD_CARRY_MERGE 1 (work stations)
set XVKMAP_OLD_CARRY_MERGE=1 (PCs)
AR# 5824
作成日 03/08/1999
最終更新日 04/25/2000
ステータス アーカイブ
タイプ 一般