Hi all,
Currently, I am porting Android ICS to a new chip, now I am blocked
by one Dalvik bug.
when I run dalvik unit test under dalvik/tests, several testcases
failed, like 017-float.
After exploration, I found all of these failure are caused by the
same reason: double-precision float are handled incorrectly.
For 017-float, the test result is:
--- expected.txt 2011-12-31 19:14:46.000000000 +0800
+++ output.txt 2012-02-02 17:57:07.881173911 +0800
@@ -1,3 +1,3 @@
-base values: d=3.1415926535 f=3.1415927
-base values: d=3.1415926535 f=3.1415927
-base values: f=3.1415927 d=3.1415926535
+base values: d=<36.<2=2=3<<==<22=323 f=003.1415927
+base values: d=<36.<2=2=3<<==<22=323 f=003.1415927
+base values: f=003.1415927 d=<36.<2=2=3<<==<22=323
the value of d are incorrect, and the value of f are prefixed by two
extra '0'.
while I print the value of 'f' only, it will get correct value
"3.1415927"
currently, I only enabled c stub based interpreter
My question is:
when porting Dalvik to new chip, is there anything special I need
to do to support double-precision? like I need to define any special
macro, so something else
Thanks in advance
---
Regards,
WANG.Jiong
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