Commit graph

22 commits

Author SHA1 Message Date
Laurent Vivier 3558b93f11
target-m68k: introduce byte and word cc_ops
Backports commit db3d7945ae7992c91cc5705dccf60fec79b24dc4 from qemu
2018-02-28 06:52:16 -05:00
Richard Henderson 121309a4d0
target-m68k: Reorg flags handling
Separate all ccr bits. Continue to batch updates via cc_op.

Signed-off-by: Richard Henderson <rth@twiddle.net>

Fix gen_logic_cc() to really extend the size of the result.
Fix gen_get_ccr(): update cc_op as it is used by the helper.
Factorize flags computing and src/ccr cleanup

Backports commit 620c6cf66584bfbee90db84a7e87a6eabf230ca9 from qemu
2018-02-27 09:30:32 -05:00
Richard Henderson 187c2a9807
target-m68k: Some fixes to SR and flags management
Backports commit 99c514485b1d7922c4ca1ed767fd45525de4701f from qemu
2018-02-27 09:19:21 -05:00
Richard Henderson 9493b29399
target-m68k: Print flags properly
Backports commit 8e394ccabdb1e439aab092de6b9d2f26432e962f from qemu
2018-02-27 09:17:44 -05:00
Laurent Vivier 57ea90a91f
target-m68k: update CPU flags management
Copied from target-i386

Backports commit 9fdb533fb129b19610941bd1e5dd93e7471a18f5 from qemu
2018-02-27 09:15:29 -05:00
Laurent Vivier 125675e334
target-m68k: don't update cc_dest in helpers
Backports commit 91f90d7191f862ab27528dbdf76cee55c77f79cf from qemu
2018-02-27 09:04:51 -05:00
Laurent Vivier b8366d5b31
target-m68k: remove m68k_cpu_exec_enter() and m68k_cpu_exec_exit()
Update cc_op directly from tcg_gen_insn_start() and
restore_state_to_opc()

Copied from target-i386

Backports commit 20a8856eba0980fbe9d2b8ed2b33ecdb9c9fe5ad from qemu
2018-02-27 08:53:02 -05:00
Laurent Vivier b079255576
target-m68k: allow to update flags with operation on words and bytes
Backports commit 5dbb6784b7e2b833c036b4df58aa07067e35f476 from qemu
2018-02-27 08:47:12 -05:00
Laurent Vivier 3d59fe56b3
target-m68k: set PAGE_BITS to 12 for m68k
Backports commit 2b04e85a3401e13cb19b1de197e6c211eaadca4c from qemu
2018-02-27 08:36:09 -05:00
Laurent Vivier 292fc83c86
target-m68k: define operand sizes
Backports commit 7ef25cdd6cee4fa468d6cb913fa064a6689faf7d from qemu
2018-02-27 08:35:13 -05:00
Laurent Vivier fa4a71a1bf
target-m68k: define m680x0 CPUs and features
This patch defines height new features:

- M68K_FEATURE_SCALED_INDEX, scaled address index register
- M68K_FEATURE_LONG_MULDIV, 32bit multiply/divide
- M68K_FEATURE_QUAD_MULDIV, 64bit multiply/divide
- M68K_FEATURE_BCCL, long conditional branches
- M68K_FEATURE_BITFIELD, bit field instructions
- M68K_FEATURE_FPU, FPU instructions
- M68K_FEATURE_CAS, cas instruction
- M68K_FEATURE_BKPT, bkpt instruction

Backports commit f076803bbf6ad1618f493f543faff97f3dd0c970 from qemu
2018-02-27 08:26:06 -05:00
Ladi Prosek 7acc14da16
Remove unused function declarations
Unused function declarations were found using a simple gcc plugin and
manually verified by grepping the sources.

Backports commit d4b84d564ee3eb7a58e4585d671fb3c220b6c3b9 from qemu
2018-02-26 02:31:46 -05:00
Markus Armbruster 2b65f98538
target-*: Clean up cpu.h header guards
Most of them use guard symbols like CPU_$target_H, but we also have
__MIPS_CPU_H__ and __TRICORE_CPU_H__. They all upset
scripts/clean-header-guards.pl.

The script dislikes CPU_$target_H because they don't match their file
name (they should, to make guard collisions less likely). The others
are reserved identifiers.

Clean them all up: use guard symbol $target_CPU_H for
target-$target/cpu.h.

Backports commit 07f5a258750b3b9a6e10fd5ec3e29c9a943b650e from qemu
2018-02-25 04:12:46 -05:00
Paolo Bonzini 9485b7c2e1
cpu: move exec-all.h inclusion out of cpu.h
exec-all.h contains TCG-specific definitions. It is not needed outside
TCG-specific files such as translate.c, exec.c or *helper.c.

One generic function had snuck into include/exec/exec-all.h; move it to
include/qom/cpu.h.

Backports commit 63c915526d6a54a95919ebece83fa9ca631b2508 from qemu
2018-02-24 02:39:08 -05:00
Paolo Bonzini 27ebc27beb
target-m68k: make cpu-qom.h not target specific
Make M68KCPU an opaque type within cpu-qom.h, and move all definitions of
private methods, as well as all type definitions that require knowledge
of the layout to cpu.h. This helps making files independent of NEED_CPU_H
if they only need to pass around CPU pointers.

Backports commit a836b8fa00fa1032ccd234a71b33943627d211ea from qemu
2018-02-24 00:56:58 -05:00
Emilio G. Cota 170f6e0b3b
tb: consistently use uint32_t for tb->flags
We are inconsistent with the type of tb->flags: usage varies loosely
between int and uint64_t. Settle to uint32_t everywhere, which is
superior to both: at least one target (aarch64) uses the most significant
bit in the u32, and uint64_t is wasteful.

Compile-tested for all targets.

Backports commit 89fee74a0f066dfd73830a7b5fa137e87888c870 from qemu
2018-02-23 21:28:11 -05:00
Peter Maydell e07cd2542c
exec.c: Drop TARGET_HAS_ICE define and checks
The TARGET_HAS_ICE #define is intended to indicate whether a target-*
guest CPU implementation supports the breakpoint handling. However,
all our guest CPUs have that support (the only two which do not
define TARGET_HAS_ICE are unicore32 and openrisc, and in both those
cases the bp support is present and the lack of the #define is just
a bug). So remove the #define entirely: all new guest CPU support
should include breakpoint handling as part of the basic implementation.

Backports commit ec53b45bcd1f74f7a4c31331fa6d50b402cd6d26 from qemu
2018-02-18 18:17:14 -05:00
Richard Henderson 5637099383
target-*: Drop cpu_gen_code define
This symbol no longer exists.

Backports commit dc03246cc377268db63abc8c5663ef571aec2eea from qemu
2018-02-17 15:23:57 -05:00
Peter Crosthwaite b848c7a51f
m68k: Remove ELF_MACHINE from cpu.h
The only generic code relying on this is linux-user, but linux users'
default behaviour of defaulting ELF_MACHINE to ELF_ARCH will handle
this.

The machine model bootloaders can just pass EM_68K directly, as that
is architecture specific code.

This removes another architecture specific definition from the global
namespace.

Backports commit 45e6b8b61a7bbb71d1fa6c4193b47ba3a1f9f033 from qemu
2018-02-17 15:23:54 -05:00
Benjamin Herrenschmidt 1722be3e73
tlb: Add ifetch argument to cpu_mmu_index()
This is set to true when the index is for an instruction fetch
translation.

The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS
acessors.

All targets ignore it for now, and all other callers pass "false".

This will allow targets who wish to split the mmu index between
instruction and data accesses to do so. A subsequent patch will
do just that for PowerPC.

Backports commit 97ed5ccdee95f0b98bedc601ff979e368583472c from qemu
2018-02-17 15:23:37 -05:00
Peter Crosthwaite e51f8c9f6f
cpu-exec: Purge all uses of ENV_GET_CPU()
Remove un-needed usages of ENV_GET_CPU() by converting the APIs to use
CPUState pointers and retrieving the env_ptr as minimally needed.

Scripted conversion for target-* change:

for I in target-*/cpu.h; do
sed -i \
's/\(^int cpu_[^_]*_exec(\)[^ ][^ ]* \*s);$/\1CPUState *cpu);/' \
$I;
done

Backports commit ea3e9847408131abc840240bd61e892d28459452 from qemu
2018-02-17 15:23:18 -05:00
Nguyen Anh Quynh 344d016104 import 2015-08-21 15:04:50 +08:00