This series is another subset of the series I sent in May: https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg00501.html
This subset contains reworked patches for: - abcd/nbcd/sbcd: remove inline, delay write back to memory and use only 3 digits (and extract it from the bifield patch as it was squashed into it) - movem: delay the update of the registers to the end of the load sequence to be able to restart the operation in case of page fault, and manage the 68020+ <-> 68000/68010 special case - cas/cas2: rewrite according Richard's comments, and use cmpxchg() in cas. I've checked it doesn't break coldfire support: http://wiki.qemu.org/download/coldfire-test-0.1.tar.bz2 but it can't boot a 680x0 processor kernel. v3: - This series must be applied on top of m68k-for-2.9 branch - remove movem as it has been applied from another series - bcd: use less bits, use 8bit immediate - cas2: use CC_OP_CMPW in cas2w, check CONFIG_ATOMIC64, call HELPER(cas2l) from INSN(cas2l) v2: - movem: don't use temp variable mask2 - bcd: delay register write back fix bcd_add() to add X define bcd_sub() instead of bsd_neg() - cas2: make it atomic with "parallel_cpus" and cpu_loop_exit_atomic() (and 64bit cmpxchg() if possible) Thanks, Laurent Laurent Vivier (2): target-m68k: add abcd/sbcd/nbcd target-m68k: add cas/cas2 ops target-m68k/helper.h | 2 + target-m68k/op_helper.c | 136 ++++++++++++++++++ target-m68k/translate.c | 368 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 506 insertions(+) -- 2.7.4
