Peter Maydell 8a6e118a17 target/arm: Allow M-profile CPUs with FP16 to set FPSCR.FP16 ... M-profile CPUs with half-precision floating point support should be able to write to FPSCR.FZ16, but an M-profile specific masking of the value at the top of vfp_set_fpscr() currently prevents that. This is not yet an active bug because we have no M-profile FP16 CPUs, but needs to be fixed before we can add any. The bits that the masking is effectively preventing from being set are the A-profile only short-vector Len and Stride fields, plus the Neon QC bit. Rearrange the order of the function so that those fields are handled earlier and only under a suitable guard; this allows us to drop the M-profile specific masking, making FZ16 writeable. This change also makes the QC bit correctly RAZ/WI for older no-Neon A-profile cores. This refactoring also paves the way for the low-overhead-branch LTPSIZE field, which uses some of the bits that are used for A-profile Stride and Len. Backports commit d31e2ce68d56f5bcc83831497e5fe4b8a7e18e85		2021-03-01 20:33:22 -05:00
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arm	target/arm: Allow M-profile CPUs with FP16 to set FPSCR.FP16	2021-03-01 20:33:22 -05:00
i386	i386/cpu: Clear FEAT_XSAVE_COMP_{LO,HI} when XSAVE is not available	2021-03-01 19:04:03 -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: Set instance_align on RISCVCPU TypeInfo	2021-03-01 19:00:27 -05:00
sparc	softfloat: Name compare relation enum	2020-05-21 18:08:52 -04:00