unicorn/qemu/target
Peter Maydell 3994dfd079
target/arm: Convert the VSEL instructions to decodetree
Convert the VSEL instructions to decodetree.
We leave trans_VSEL() in translate.c for now as this allows
the patch to show just the changes from the old handle_vsel().

In the old code the check for "do D16-D31 exist" was hidden in
the VFP_DREG macro, and assumed that VFPv3 always implied that
D16-D31 exist. In the new code we do the correct ID register test.
This gives identical behaviour for most of our CPUs, and fixes
previously incorrect handling for Cortex-R5F, Cortex-M4 and
Cortex-M33, which all implement VFPv3 or better with only 16
double-precision registers.

Backports commit b3ff4b87b4ae08120a51fe12592725e1dca8a085 from qemu
2019-06-13 16:41:22 -04:00
..
arm target/arm: Convert the VSEL instructions to decodetree 2019-06-13 16:41:22 -04:00
i386 cpu: Introduce CPUNegativeOffsetState 2019-06-13 15:08:25 -04:00
m68k cpu: Introduce CPUNegativeOffsetState 2019-06-13 15:08:25 -04:00
mips cpu: Introduce CPUNegativeOffsetState 2019-06-13 15:08:25 -04:00
riscv cpu: Introduce CPUNegativeOffsetState 2019-06-13 15:08:25 -04:00
sparc cpu: Introduce CPUNegativeOffsetState 2019-06-13 15:08:25 -04:00