26cc0a3fd1
target-s390: Use noreturn for exception and load_psw
...
Both always exit the cpu loop.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
893e1660d5
target-s390: Use TCG_CALL_NO_WG for misc helpers
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
c20fec4055
target-s390: Use TCG_CALL_NO_WG for integer helpers
...
The division routines do not read or write tcg registers,
but can raise fixed-point divide exceptions.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
c482ea94ea
target-s390: Use TCG_CALL_NO_WG for floating-point helpers
...
None of them read or write tcg registers, but most can
raise fp exceptions.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
d918a65c69
target-s390: Use TCG_CALL_NO_WG for memory helpers
...
Those that do not read or write tcg registers, but can
raise exceptions via memory faults.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
b7886de3f3
target-s390: Perform COMPARE AND SWAP inline
...
Still no proper solution for CONFIG_USER_ONLY, but the system
version is significantly better.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
bacf43c62e
target-s390: Optimize get_address
...
Don't load the displacement into a register first, add it second
so that tcg_gen_addi_i64 can eliminate zeros. Don't mask the
displacement first so that we don't turn small negative numbers
into large positive numbers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
c95ec459c6
target-s390: Optimize ADDC/SUBB
...
Giving the proper mask to disas_jcc allows us to generate an inline
comparison generating the carry/borrow with setcond.
In the very worst case, when we must use the external helper to compute
a value for CC, we generate (cc > 1) instead of (cc >> 1), which is only
very slightly slower on common cpus.
In the very best case, when the CC comes from a COMPARE insn and the
compiler is using ALCG with zero, everything folds out to become just
the setcond that the compiler wanted.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:46 -08:00
a359b770c6
target-s390: Optimize ADDU/SUBU CC testing
...
We can easily generate some masks for logical add/subtract inline.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
de379661d5
target-s390: Tidy comparisons
...
After full conversion, we can audit the uses of LTGT cc ops
and see that none of the instructions can ever set CC=3.
Thus we can extend the table to treat that bit as ignored.
This fixes a regression wrt the pre-conversion translation
in which NE was used for both m=6 and m=7.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
f24c49c24a
target-s390: Optmize emitting discards
...
While they aren't expensive, they aren't free to process. When we
know that the three cc helper variables are dead, don't kill them.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
d074ac6d26
target-s390: Optimize XC
...
Notice XC with same address and convert that to store of zero.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
90b4f8ad72
target-s390: Fix cpu_clone_regs
...
R2 is the syscall return register, not R0.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
411edc22cb
target-s390: Implement LOAD/SET FP AND SIGNAL
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
a12000b9ec
target-s390: Implement SET ROUNDING MODE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
d2d9feac6f
target-s390: Use uint64_to_float128
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
1d1f630135
target-s390: Implement LCDFR
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
49f7ee802f
target-s390: Check insn operand specifications
...
Removes all the fixmes for even register numbers, etc.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
2db014b5a7
target-s390: Implement CPSDR
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
99b4f24b3e
target-s390: Implement POPCNT
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:45 -08:00
2112bf1bfb
target-s390: Implement CONVERT FROM LOGICAL
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
6ac1b45f9b
target-s390: Implement CONVERT TO LOGICAL
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
b92fa33486
target-s390: Implement STORE ON CONDITION
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
632086da28
target-s390: Implement LOAD ON CONDITION
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
1c26875182
target-s390: Implement COMPARE AND TRAP
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
403e217f40
target-s390: Implement COMPARE RELATIVE LONG
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
e0def9094e
target-s390: Implement PREFETCH
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
d6c6372e18
target-s390: Implement R[NOX]SBG
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
143cbbc5eb
target-s390: Implement LDGR, LGDR
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
2d6a869833
target-s390: Implement RISBG
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
5550359f07
target-s390: Implement COMPARE AND BRANCH
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
7a6c7067f0
target-s390: Tidy s->op_cc handling
...
There's no need to force computation of the true cc_op when taking an
exception or single stepping. In either case we'll enter the next TB
with s->cc_op = DYNAMIC and recompute anyway. Just make sure that
s->cc_op is stored back to env->cc_op as needed.
Delete some dead functions, avoid allocating unused TCG temps, drop
the old s->is_jmp setting.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
2cf5e350c4
target-s390: Implement BRANCH ON INDEX
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:44 -08:00
4f3adfb2a6
target-s390: Delete dead code from old translator
...
The use of inline restricts detection of static functions that are
no longer used. Limit the use of inline to those functions that
are conditionally used based on CONFIG_USER_ONLY.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
dc458df91d
target-s390: Convert SERVC
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
7ab938d706
target-s390: Convert LPSWE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
fc778b55a5
target-s390: Convert STFL
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
d14b3e09b2
target-s390: Convert STSI
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
14244b21a0
target-s390: Convert SACF
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
39a5003c89
target-s390: Convert STCKE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
3d596f4912
target-s390: Convert CSP
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
204504e2fa
target-s390: Convert STURA
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
2c423fc070
target-s390: Convert subchannel instructions
...
While we're at it, list all of the chapter 14 subchannel insns.
Which is easy since all merely need indicate non-operation.
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
5cc69c54f6
target-s390: Convert RRBE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
2bbde27f25
target-s390: Convert SSKE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
8026417c71
target-s390: Convert ISKE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
cfef53e356
target-s390: Convert IPTE
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
411fea3d84
target-s390: Convert STAP
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
e805a0d39e
target-s390: Convert SPX, STPX
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:43 -08:00
0568d8aab0
target-s390: Convert PTLB
...
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:18:42 -08:00
Richard Henderson