Note that the previous placement of the PM field was incorrect.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Note that we were failing to set the rounding mode in fpu_status.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Use the new float*_muladd interface to softfloat.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Note that truncating the store to r1 based on PSW_MASK_64
is incorrect.  We always modify the entire register.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

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: NRichard Henderson <rth@twiddle.net>

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: NRichard Henderson <rth@twiddle.net>

Which highlights a lot of cc helpers that no longer exist.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Rename helper flags to the new ones. This is purely a mechanical change,
it's possible to use better flags by looking at the helpers.

Cc: Alexander Graf <agraf@suse.de>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Add an explicit CPUState parameter instead of relying on AREG0.

Remove temporary wrappers and switch to AREG0 free mode.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
[agraf: fix conflicts]
Signed-off-by: NAlexander Graf <agraf@suse.de>

Make misc helpers take a parameter for CPUState instead
of relying on global env.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
[agraf: fix conflict]
Signed-off-by: NAlexander Graf <agraf@suse.de>

Make condition code helpers take a parameter for CPUState instead
of relying on global env.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>

Make integer helpers take a parameter for CPUState instead
of relying on global env.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>

Make FPU helpers take a parameter for CPUState instead
of relying on global env.

Introduce temporary wrappers for FPU load and store ops.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>

Provides a file naming scheme consistent with other targets.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: NAlexander Graf <agraf@suse.de>

While running perl, we encountered the ldeb instruction to be used,
so we implement it :).
Signed-off-by: NAlexander Graf <agraf@suse.de>

There are some instructions that can't (or shouldn't) be expressed by pure
tcg code. For those, we call into externally compiled C functions.

This patch implements those C functions.
Signed-off-by: NAlexander Graf <agraf@suse.de>