From: Laurent Vivier <laurent@vivier.eu>
To: qemu-devel@nongnu.org
Cc: schwab@linux-m68k.org, agraf@suse.de,
Richard Henderson <rth@twiddle.net>,
gerg@uclinux.org, Laurent Vivier <laurent@vivier.eu>
Subject: [Qemu-devel] [PATCH v2 0/3] target-m68k: add movem, BCD and CAS instructions
Date: Wed, 2 Nov 2016 22:15:16 +0100 [thread overview]
Message-ID: <1478121319-31986-1-git-send-email-laurent@vivier.eu> (raw)
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.
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)
Richard: This series doesn't use your "areg writeback" series,
but if you resend your series (with cmpm patches squashed
and the fix for writeback_mask), I will rebase this series
on top of yours.
Thanks,
Laurent
Laurent Vivier (3):
target-m68k: add abcd/sbcd/nbcd
target-m68k: implement 680x0 movem
target-m68k: add cas/cas2 ops
target-m68k/helper.h | 2 +
target-m68k/op_helper.c | 133 +++++++++++++
target-m68k/translate.c | 481 ++++++++++++++++++++++++++++++++++++++++++++++--
3 files changed, 599 insertions(+), 17 deletions(-)
--
2.7.4
next reply other threads:[~2016-11-02 21:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-02 21:15 Laurent Vivier [this message]
2016-11-02 21:15 ` [Qemu-devel] [PATCH v2 1/3] target-m68k: add abcd/sbcd/nbcd Laurent Vivier
2016-11-03 16:16 ` Richard Henderson
2016-11-02 21:15 ` [Qemu-devel] [PATCH v2 2/3] target-m68k: implement 680x0 movem Laurent Vivier
2016-11-03 16:17 ` Richard Henderson
2016-11-03 19:47 ` Richard Henderson
2016-11-03 20:11 ` Laurent Vivier
2016-11-03 20:45 ` Richard Henderson
2016-11-03 20:47 ` Richard Henderson
2016-11-04 7:59 ` Laurent Vivier
2016-11-04 12:27 ` Richard Henderson
2016-11-02 21:15 ` [Qemu-devel] [PATCH v2 3/3] target-m68k: add cas/cas2 ops Laurent Vivier
2016-11-03 16:36 ` Richard Henderson
2016-11-03 18:03 ` Laurent Vivier
2016-11-03 19:20 ` Richard Henderson
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