[CM] S7 scheme running on Android in NDK
ripley.jason at gmail.com
Fri May 3 15:17:04 PDT 2013
I have just added s7 scheme to a C++ project on Android, and I ran into a
couple of issues that I would like to post in case anyone else runs into
1 - android doesn't seem to support the log2 function. Easy fix: fx =
2 - It seems that arm based architectures have issues with aligned access.
I discovered this when calling s7_init to create a second scheme vm. The
fix for this is to simply add __ANDROID__ to the __bfin__ check.
here is the diff of the changes for s7.c:
< #if (__bfin__)
> #if (__bfin__ || __ANDROID__)
> #if (__ANDROID__)
> fx = log((double)ix)/log(2.0);
Are there any other spots in s7 where unaligned access may occur? They are
rather difficult to debug.
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