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| author | David Hildenbrand <david@redhat.com> | 2019-02-25 21:03:18 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2019-03-04 11:49:31 +0100 |
| commit | 6d9303322ed9580ff6c61e38a427b549410464c7 (patch) | |
| tree | b5852be0aefc08d8554c5469aa76a8c357f50502 /target/s390x/internal.h | |
| parent | 86b59624c4aa2a383aca7a1798740779ac8967ce (diff) | |
| download | qemu-6d9303322ed9580ff6c61e38a427b549410464c7.zip | |
s390x/tcg: Implement LOAD COUNT TO BLOCK BOUNDARY
Use a new CC helper to calculate the CC lazily if needed. While the
PoP mentions that "A 32-bit unsigned binary integer" is placed into the
first operand, there is no word telling that the other 32 bits (high
part) are left untouched. Maybe the other 32-bit are unpredictable.
So store 64 bit for now.
Bit magic courtesy of Richard.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-8-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/internal.h')
| -rw-r--r-- | target/s390x/internal.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/s390x/internal.h b/target/s390x/internal.h index b2966a3adc..9d0a45d1fe 100644 --- a/target/s390x/internal.h +++ b/target/s390x/internal.h @@ -236,6 +236,7 @@ enum cc_op { CC_OP_SLA_32, /* Calculate shift left signed (32bit) */ CC_OP_SLA_64, /* Calculate shift left signed (64bit) */ CC_OP_FLOGR, /* find leftmost one */ + CC_OP_LCBB, /* load count to block boundary */ CC_OP_MAX }; |