AArch64没有直接等于ARMv7 CPSR。在AArch64中,传统CPSR的部件被当作能够独立访问的域。它们被称为PSTATE。 处理器状态,或PSTATE域,对于AArch64有如下定义: PSTATE域定义 在AArch64中,通过执行ERET指令从异常返回,这会导致SPSR_ELn被拷贝到PSTATE。这将恢复ALU标志,执行状态,异常级别,和处理器分支。你将从ELR...
AArch64寄存器包括:AArch64 state的寄存器,Process state(PE), 系统寄存器AArch64 state的寄存器R0-R30:64bit,X, 32bit WSP: 64 bit SP,32bit WSPPC:软件无法更新,只能由分支指令,异常等更新V0-V1:32个SMID&FP的寄存器,128:Q ,64:D …8:B ; 128bit vector/64bit vector Process state,PSTATEcondit...
AArch64: 64-bit execution state; 地址保存在64-bit registers;31 个通用寄存器,X30是程序链接寄存器,提供了64 bit的PC, SP,以及异常链接寄存器,提供了32个128bit的SIMD向量和浮点寄存器;定义了ARM8的异常模型;支持64bit的虚拟地址;定义了一些PSTATE的寄存器来存储PE state;定义了不同级别的系统寄存器;仅支持一...
4. 例如在64位操作系统(EL1)上需要运行32位和64位应用程序(EL0),假设当前32位应用程序正在运行,那么他需要通过SVC指令或者接收到一个中断从而陷入到EL1的64位操作系统。此时操作系统可以进行任务调度,从而切换到64位的应用程序运行 5. 在处理中断时,从AArch32切换到AArch64;在中断返回时,从AArch64切换到AArch...
rpmbuild -ba --target=aarch64 redis.spec 编译完成的rpm安装包在“~/rpmbuild/RPMS”目录下。 2)在centos上编译成功的redis-5.0.4-2.aarch64.rpm放在 make/photon/redis目录下。然后修改基础镜像文件Dockerfile.base。 cp~/rpmbuild/RPMS/aarch64/redis-5.0.4-2.aarch64.rpm make/photon/redis/vimmake...
在ARMv7中,这将使用堆栈,而AArch64可以在寄存器中传递8个参数。(2) 长度更宽的整数寄存器使得操作64-bit数据的代码运行更有效。一个32-bit处理器在执行64-bit数据的算术运算时,可能需要运算多次;一个64-bit处理器也许一次操作即可。(3) 64-bit操作使得应用程序可以使用更大的虚拟地址空间。虽然Large Physical ...
ID_ISAR6_EL1 is a 64-bit register. Field descriptions When AArch32 is supported at EL0: 6362616059585756555453525150494847464544434241403938373635343332 313029282726252423222120191817161514131211109876543210 RES0 RES0I8MMBF16SPECRESSBFHMDPJSCVT Bits [63:28] ...
This instruction is present only when AArch32 is supported at EL0 and FEAT_SPECRES is implemented. Otherwise, direct accesses to CPPRCTX are UNDEFINED. Attributes CPPRCTX is a 32-bit System instruction. Field descriptions 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 ...
architectural registers (generated from arm xml spec) paging definitions (4k granule) Todo's AArch32 support Paging granules 16k and 64k Register Binding Generation To generate/update the Rust register bindings execute: $ bash tools/generate-register-bindings.sh Dependencies for the Rust register bi...
architectural registers (generated from arm xml spec) paging definitions (4k granule) Todo's AArch32 support Paging granules 16k and 64k Register Binding Generation To generate/update the Rust register bindings execute: $ bash tools/generate-register-bindings.sh Dependencies for the Rust register bi...