qemu-patch-raspberry4/fpu
Petr Tesarik 781cde6d94 fpu/softfloat: Fix conversion from uint64 to float128
The significand is passed to normalizeRoundAndPackFloat128() as high
first, low second. The current code passes the integer first, so the
result is incorrectly shifted left by 64 bits.

This bug affects the emulation of s390x instruction CXLGBR (convert
from logical 64-bit binary-integer operand to extended BFP result).

Cc: qemu-stable@nongnu.org
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Petr Tesarik <ptesarik@suse.com>
Message-Id: <20180511071052.1443-1-ptesarik@suse.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 6603d50648)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-18 10:47:49 -05:00
..
softfloat-specialize.h RISC-V FPU Support 2018-03-07 08:30:28 +13:00
softfloat.c fpu/softfloat: Fix conversion from uint64 to float128 2018-07-18 10:47:49 -05:00