yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2024-12-23 09:55:33 +00:00
Code Issues Packages Projects Releases Wiki Activity
unicorn/qemu
History
Peter Maydell be197f9857 target/arm: Implement v8.1M branch-future insns (as NOPs) 
v8.1M implements a new 'branch future' feature, which is a
set of instructions that request the CPU to perform a branch
"in the future", when it reaches a particular execution address.
In hardware, the expected implementation is that the information
about the branch location and destination is cached and then
acted upon when execution reaches the specified address.
However the architecture permits an implementation to discard
this cached information at any point, and so guest code must
always include a normal branch insn at the branch point as
a fallback. In particular, an implementation is specifically
permitted to treat all BF insns as NOPs (which is equivalent
to discarding the cached information immediately).

For QEMU, implementing this caching of branch information
would be complicated and would not improve the speed of
execution at all, so we make the IMPDEF choice to implement
all BF insns as NOPs.

Backports commit 05903f036edba8e3ed940cc215b8e27fb49265b9
2021-03-01 20:25:15 -05:00
..
accel target/arm: Add sve infrastructure for page lookup 2021-02-25 20:28:23 -05:00
crypto crypto: Clean up includes 2018-02-19 00:47:40 -05:00
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 target/arm: Set instance_align on CPUARM TypeInfo 2021-03-01 18:58:44 -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 target/arm: Set instance_align on CPUARM TypeInfo 2021-03-01 18:58:44 -05:00
scripts decodetree: Fix codegen for non-overlapping group inside overlapping group 2021-03-01 20:14:19 -05:00
target target/arm: Implement v8.1M branch-future insns (as NOPs) 2021-03-01 20:25:15 -05:00
tcg tcg: Remove TCG_TARGET_HAS_cmp_vec 2021-03-01 19:49:02 -05:00
util util/cutils: Turn FIXME comment into QEMU_BUILD_BUG_ON() 2020-01-14 08:04:30 -05:00
aarch64.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
aarch64eb.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
accel.c target/arm: Set instance_align on CPUARM TypeInfo 2021-03-01 18:58:44 -05:00
arm.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
armeb.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -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 Include qapi/error.h exactly where needed 2018-03-07 12:26:38 -05:00
exec.c Memory: Enable writeback for given memory region 2020-01-14 07:44:24 -05:00
gen_all_header.sh
glib_compat.c target/arm: Add VHE system register redirection and aliasing 2020-03-21 15:57:03 -04:00
header_gen.py target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
ioport.c hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
LICENSE
m68k.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -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 target/arm: Set instance_align on CPUARM TypeInfo 2021-03-01 18:58:44 -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 include/qemu/osdep.h: Don't include qapi/error.h 2018-02-21 23:08:18 -05:00
mips.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
mips64.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
mips64el.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
mipsel.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
powerpc.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
riscv32.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
riscv64.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
rules.mak build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
sparc.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
sparc64.h target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00
unicorn_common.h tcg: Move sorted_args into TCGArgConstraint.sort_index 2021-03-01 19:33:45 -05:00
VERSION Open 5.2 development tree 2021-02-25 23:52:17 -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 target/arm: AArch32 VCVT fixed-point to float is always round-to-nearest 2021-03-01 20:04:31 -05:00