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unaligned_load: Fix sign extension, add test case for sign extension

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H/T to @foogod again for this.
This commit is contained in:
Angus Gratton 2015-09-15 12:00:06 +10:00
parent 5a9590cdff
commit 8a088f73db
2 changed files with 25 additions and 5 deletions
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2
core/exception_unaligned_load.S.inc
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@ -138,7 +138,7 @@ DoubleExceptionLoadStoreHandler:
a3 holds raw value, a4 holds masked */
bbsi a5, 15, .Lafter_extend_sign /* 16-bit unsigned, no sign extension */
bbci a3, 15, .Lafter_extend_sign /* sign bit not set, no sign extension */
movi a3, 0xFFFF0000
movi a3, 0xFFFF8000
or a4, a3, a4 /* set 32-bit sign bits */
j .Lafter_extend_sign