Age | Commit message (Collapse) | Author |
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Change the CC handling to be more like TEST UNDER MASK, with val & mask.
This lets us handle ICMH much more like ICM.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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The inline markers hid the fact that {n}abs_32 were unused
because of typos in the main do_calc_cc function. Let the
compiler handle auto-inlining here.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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I'm resonably certain that the carry/borrow-out condition for both
helpers was incorrect, failing to take into account the carry-in.
Adding the new CC_OP codes also allows removing the awkward interface
we used for the slb helpers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Use a new "retxl" member of CPUS290XState to return the "eXtra Low" part
of a 128-bit value. That said, this will get used when two independent
values need returning (e.g. quotient+remainder) as well.
At the same time, shuffle the elements of CPUS390XState to get this new
space from existing padding in the structure.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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Make the user path more like the system path. Prepare for more kinds
of runtime exceptions. Rename ILC to ILEN to make it clear that we
want to pass around a full instruction length, rather than a "code"
that happens to be stored one bit left in a larger field.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Lots of duplicated code replaced with a couple of tables. We no longer
attempt to manually invert the logic operation: the comments now match
the code. In the fully general test, constant propagate (1 << (3 - cc))
into (8 >> cc).
The new function will be usable by non-branch insns as well.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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We were treating psw.mask as the 32-bit quantity it is in ESA mode.
In particular, the CC field was at the wrong place.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Yes, we're about to rewrite all of this, but having this unconditional
jump recompute cc_op is a large source of "false diff errors" when
trying to examine before and after dumps.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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There were are two exit paths for which we forgot to
copy s->cc_op back to the tcg register.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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DISAS_EXCP is exit via exception; we wanted DISAS_JUMP.
This matters when we start cleaning up the TB exit paths.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Which highlights a lot of cc helpers that no longer exist.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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At the same time, tidy other usages of tcg_gen_deposit_i64.
In some cases we can "type cast" rather than extend, and in
others we can allow tcg_gen_deposit_i64 itself to optimize
the HOST_LONG_BITS==32 case.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
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The real gdb protocol doesn't split out pc or cc as real registers.
Those are pseudos that are extracted as needed from the PSW. Don't
modify env->cc_op during read -- that way lies heisenbugs.
Fill in the XXX for the fp registers.
Remove duplicated defines in cpu.h.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Adapt header include paths.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Pass CPUState / {X86,S390}CPU to helper functions.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Adapt some functions to take CPUState / {PowerPC,S390}CPU argument.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Adapt helper functions to pass X86CPU / PowerPCCPU / S390CPU.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Move kvm_vcpu_dirty field into CPUState to simplify things and change
its type to bool while at it.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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