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unicorn/qemu
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Mark Cave-Ayland 9777741703 target/m68k: add M68K_FEATURE_UNALIGNED_DATA feature 
According to the M68040UM Appendix D the requirement for data accesses to be
word aligned is only for the 68000, 68008 and 68010 CPUs. Later CPUs from the
68020 onwards will allow unaligned data accesses but at the cost of being less
efficient.

Add a new M68K_FEATURE_UNALIGNED_DATA feature to specify that data accesses are
not required to be word aligned, and don't perform the alignment on the stack
pointer when taking an exception if this feature is not selected.

This is required because the MacOS DAFB driver attempts to call an A-trap
with a byte-aligned stack pointer during initialisation and without this the
stack pointer is off by one when the A-trap returns.

Backports a9431a03f70c8c711a870d4c1a0439bdbb4703cf
2021-03-12 14:55:43 -05:00
..
accel qemu/atomic.h: rename atomic_ to qatomic_ 2021-03-08 14:34:35 -05:00
crypto
default-configs target/riscv: Initial introduction of the RISC-V target 2019-03-08 21:46:10 -05:00
docs docs/devel/memory.txt: Document _with_attrs accessors 2018-10-04 04:46:26 -04:00
fpu softfloat: Define misc operations for bfloat16 2021-02-27 16:41:46 -05:00
hw target/arm: Set instance_align on CPUARM TypeInfo 2021-03-01 18:58:44 -05:00
include include/exec: lightly re-arrange TranslationBlock 2021-03-09 13:25:04 -05:00
qapi qapi: Rewrite string-input-visitor's integer and list parsing 2018-12-18 04:57:25 -05:00
qobject qstring: Move qstring_from_substr()'s @end one to the right 2018-08-02 21:24:19 -04:00
qom qemu/atomic.h: rename atomic_ to qatomic_ 2021-03-08 14:34:35 -05:00
scripts decodetree: Open files with encoding='utf-8' 2021-03-04 13:34:08 -05:00
target target/m68k: add M68K_FEATURE_UNALIGNED_DATA feature 2021-03-12 14:55:43 -05:00
tcg tcg: Split out tcg_raise_tb_overflow 2021-03-09 13:23:02 -05:00
util qemu/atomic.h: rename atomic_ to qatomic_ 2021-03-08 14:34:35 -05:00
aarch64.h target/arm: Speed up aarch64 TBL/TBX 2021-03-08 11:31:24 -05:00
aarch64eb.h target/arm: Speed up aarch64 TBL/TBX 2021-03-08 11:31:24 -05:00
accel.c target/arm: Set instance_align on CPUARM TypeInfo 2021-03-01 18:58:44 -05:00
arm.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
armeb.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
CODING_STYLE.rst docs: split the CODING_STYLE doc into distinct groups 2019-11-28 02:54:44 -05:00
configure configure: Support -static-pie if requested 2020-04-30 07:09:34 -04:00
COPYING
COPYING.LIB
cpus.c qemu/atomic.h: rename atomic_ to qatomic_ 2021-03-08 14:34:35 -05:00
exec.c qemu/atomic.h: rename atomic_ to qatomic_ 2021-03-08 14:34:35 -05:00
gen_all_header.sh
glib_compat.c tcg: Introduce TYPE_CONST temporaries 2021-03-03 21:29:40 -05:00
header_gen.py target/riscv/pmp: Raise exception if no PMP entry is configured 2021-03-08 15:39:55 -05:00
ioport.c
LICENSE
m68k.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
Makefile Makefile: Rename targets for make recursion 2019-08-08 17:26:49 -04:00
Makefile.objs qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-09 11:35:11 -05:00
Makefile.target configure: Remove old -fno-gcse workaround for GCC 4.6.x and 4.7.[012] 2018-12-18 03:52:36 -05:00
memory.c qemu/atomic.h: rename atomic_ to qatomic_ 2021-03-08 14:34:35 -05:00
memory_ldst.inc.c memory: Single byte swap along the I/O path 2020-01-07 19:12:04 -05:00
memory_mapping.c
mips.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
mips64.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
mips64el.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
mipsel.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
powerpc.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
qemu-timer.c
riscv32.h target/riscv/pmp: Raise exception if no PMP entry is configured 2021-03-08 15:39:55 -05:00
riscv64.h target/riscv/pmp: Raise exception if no PMP entry is configured 2021-03-08 15:39:55 -05:00
rules.mak build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
sparc.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
sparc64.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00
unicorn_common.h tcg: Move sorted_args into TCGArgConstraint.sort_index 2021-03-01 19:33:45 -05:00
VERSION Open 6.0 development tree 2021-03-02 13:39:05 -05:00
vl.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
vl.h
x86_64.h qemu/compiler: Split out qemu_build_not_reached_always 2021-03-04 15:23:27 -05:00