Richard Henderson c95ec459c6 target-s390: Optimize ADDC/SUBB
Giving the proper mask to disas_jcc allows us to generate an inline
comparison generating the carry/borrow with setcond.

In the very worst case, when we must use the external helper to compute
a value for CC, we generate (cc > 1) instead of (cc >> 1), which is only
very slightly slower on common cpus.

In the very best case, when the CC comes from a COMPARE insn and the
compiler is using ALCG with zero, everything folds out to become just
the setcond that the compiler wanted.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
2012-12-17 14:01:41 +01:00
2012-12-19 08:29:06 +01:00
2012-12-22 12:06:48 +00:00
2012-10-24 10:26:22 +02:00
2013-01-02 11:23:21 -06:00
2012-09-07 09:02:44 +03:00
2012-11-01 13:10:06 +01:00
…
2012-05-14 07:27:24 +02:00
…
…
2012-12-20 23:08:47 +01:00
2013-01-05 12:00:27 -08:00
2013-01-02 15:58:09 +01:00
…
2012-12-20 23:09:25 +01:00
…
2013-01-03 12:53:41 -06:00
…
…
2013-01-02 13:32:48 -06:00
…
2012-12-03 14:08:40 -06:00
2012-12-22 12:04:44 +00:00

Read the documentation in qemu-doc.html or on http://wiki.qemu.org

- QEMU team
S
Description
Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
Readme GPL-2.0
713 MiB
0 Stars 1 Watchers 0 Forks
Languages
C 82.3%
C++ 6.9%
Python 3.5%
Dylan 2.7%
Shell 1.5%
Other 2.9%