diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-07-24 10:15:56 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-07-24 18:44:47 +0200 |
| commit | 53684e344a27da770acc9012740334154ddea24f (patch) | |
| tree | 793b9326300442152fb6b4ef4175d87dd0ef7e9f /target/s390x | |
| parent | 4b6e4c0b8223681ae85462794848db4386de1a8d (diff) | |
target/s390x: Fix CONVERT TO LOGICAL/FIXED with out-of-range inputs
CONVERT TO LOGICAL/FIXED deviate from IEEE 754 in that they raise an
inexact exception on out-of-range inputs. float_flag_invalid_cvti
aligns nicely with that behavior, so convert it to
S390_IEEE_MASK_INEXACT.
Cc: qemu-stable@nongnu.org
Fixes: defb0e3157af ("s390x: Implement opcode helpers")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230724082032.66864-4-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target/s390x')
| -rw-r--r-- | target/s390x/tcg/fpu_helper.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/target/s390x/tcg/fpu_helper.c b/target/s390x/tcg/fpu_helper.c index 4b7fa58af3..3d941ed2d2 100644 --- a/target/s390x/tcg/fpu_helper.c +++ b/target/s390x/tcg/fpu_helper.c @@ -52,7 +52,8 @@ uint8_t s390_softfloat_exc_to_ieee(unsigned int exc) s390_exc |= (exc & float_flag_divbyzero) ? S390_IEEE_MASK_DIVBYZERO : 0; s390_exc |= (exc & float_flag_overflow) ? S390_IEEE_MASK_OVERFLOW : 0; s390_exc |= (exc & float_flag_underflow) ? S390_IEEE_MASK_UNDERFLOW : 0; - s390_exc |= (exc & float_flag_inexact) ? S390_IEEE_MASK_INEXACT : 0; + s390_exc |= (exc & (float_flag_inexact | float_flag_invalid_cvti)) ? + S390_IEEE_MASK_INEXACT : 0; return s390_exc; } |