unicorn/qemu/target
Peter Maydell fc4cc9d95f target/arm: Convert A32 coprocessor insns to decodetree
Convert the A32 coprocessor instructions to decodetree.

Note that this corrects an underdecoding: for the 64-bit access case
(MRRC/MCRR) we did not check that bits [24:21] were 0b0010, so we
would incorrectly treat LDC/STC as MRRC/MCRR rather than UNDEFing
them.

The decodetree versions of these insns assume the coprocessor
is in the range 0..7 or 14..15. This is architecturally sensible
(as per the comments) and OK in practice for QEMU because the only
uses of the ARMCPRegInfo infrastructure we have that aren't
for coprocessors 14 or 15 are the pxa2xx use of coprocessor 6.
We add an assertion to the define_one_arm_cp_reg_with_opaque()
function to catch any accidental future attempts to use it to
define coprocessor registers for invalid coprocessors.

Backports commit cd8be50e58f63413c033531d3273c0e44851684f from qemu
2021-02-26 10:57:00 -05:00
..
arm target/arm: Convert A32 coprocessor insns to decodetree 2021-02-26 10:57:00 -05:00
i386 target/i386: floatx80: avoid compound literals in static initializers 2021-02-25 23:38:54 -05:00
m68k target/m68k: consolidate physical translation offset into get_physical_address() 2021-02-25 23:13:48 -05:00
mips target/mips: Support variable page size 2020-06-14 21:09:51 -04:00
riscv target/riscv: vector single-width integer multiply instructions 2021-02-26 10:46:26 -05:00
sparc softfloat: Name compare relation enum 2020-05-21 18:08:52 -04:00