The always-native and never-native words were already setting the opposite flag to zero,
so just a couple of logical operator changes needed to replace ST flag with the unused AN=1/NN=1 state, indicating an otherwise normal word with stack-thrashing. I also swapped the order of the IM and AN flags so AN+NN are adjacent to improve readability in see.
The
always-nativeandnever-nativewords were already setting the opposite flag to zero, so just a couple of logical operator changes needed to replace ST flag with the unused AN=1/NN=1 state, indicating an otherwise normal word with stack-thrashing. I also swapped the order of the IM and AN flags so AN+NN are adjacent to improve readability insee.