S390: Fix SQEBR sim to treat operands as float32

S390: Fix SQEBR sim to treat operands as float32

Fix bug in simulator which incorrectly interpreted the operands
for SQEBR (Float32 sqrt) as 64-bit doubles.  Add missing
disassembler case for SQEBR as well.

R=jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=

Committed: https://crrev.com/5ac8e667bf1add7f694c18852e396ed606f97e39
Cr-Commit-Position: refs/heads/master@{#35119}

[JoranSiu, 2016-03-29 20:34:08]

PTAL

[john.yan, 2016-03-29 20:40:43]

lgtm

[JoranSiu, 2016-03-29 20:43:07]

The CQ bit was checked by joransiu@ca.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-03-29 20:43:14]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1837263003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1837263003/1

[commit-bot: I haz the power, 2016-03-29 21:03:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-03-29 21:03:36]

Dry run: This issue passed the CQ dry run.

[JoranSiu, 2016-03-29 21:06:56]

The CQ bit was checked by joransiu@ca.ibm.com

[commit-bot: I haz the power, 2016-03-29 21:07:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1837263003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1837263003/1

[commit-bot: I haz the power, 2016-03-29 21:08:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-29 21:10:30]

Description was changed from

==========
S390: Fix SQEBR sim to treat operands as float32

Fix bug in simulator which incorrectly interpreted the operands
for SQEBR (Float32 sqrt) as 64-bit doubles.  Add missing
disassembler case for SQEBR as well.

R=jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=
==========

to

==========
S390: Fix SQEBR sim to treat operands as float32

Fix bug in simulator which incorrectly interpreted the operands
for SQEBR (Float32 sqrt) as 64-bit doubles.  Add missing
disassembler case for SQEBR as well.

R=jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=

Committed: https://crrev.com/5ac8e667bf1add7f694c18852e396ed606f97e39
Cr-Commit-Position: refs/heads/master@{#35119}
==========

[commit-bot: I haz the power, 2016-03-29 21:10:31]

Patchset 1 (id:??) landed as
https://crrev.com/5ac8e667bf1add7f694c18852e396ed606f97e39
Cr-Commit-Position: refs/heads/master@{#35119}