These instructions are used to achieve higher code density and reduce the size and cost of code storage memory in ARM processors. They are half as long as regular ARM instructions, resulting in a smaller overall code size. The Thumb Instruction Set also allows for an inexpensive 16-bit bus ...
These operate on the general-purpose registers. In many cases, the result of the operation must be put in one of the operand registers, not in a third register. There are fewer data processing operations available than in ARM state. They have limited access to registers r8 to r15. The ALU...
thumb代码使用的指令数比arm代码多约3040若使用32位的存储器arm代码比thumb代码快约40若使用16位的存储器thumb代码比arm代码快约4050与arm代码相比较使用thumb代码存储器的功耗会降低约30显然arm指令集和thumb指令集各有其优点若对系统的性能有较高要求应使用32位的存储系统和arm指令集若对系统的成本及功耗有较高要求...
In the embedded domain, not only performance, but also memory and energy are important concerns. A dual instruction set ARM processor, which supports a reduced Thumb instruction set with a smaller instruction length in addition to a full instruction set, provides an opportunity for a flexible ...
setsinadditiontosupportingahighlyefficient32bitARM instructionset.TheThumbinstructionset,asubsetoftheARM instructionset,isproposedforcodedensityproblemswith16 bitcodewidths.Comparedwiththeequivalent32bitcode,the Thumbinstructionsetsavesthestoragespaceofthesystem ...
ARMV7-M数据手册---Part A :Application Level Architecture---A5 The Thumb Instruction Set Encoding TODO
De**ug 上传154KB 文件格式 pdf ARM Thumb-2 Instruction ARM® and Thumb®-2 Instruction Set Quick Reference Card 点赞(0) 踩踩(0) 反馈 所需:1 积分 电信网络下载 C语言知识结构 不是很全 2025-03-05 11:46:17 积分:1 Mask_detection_based_on_YoloV3-tiny_including_mask_Mask 2025-03-...
thumb指令集与arm指令集切换 movR0,#5;Argument to function is in R0addR1,PC,#1;Load address of SUB_BRANCH, Set for THUMB by adding 1BX R1;R1 contains address of SUB_BRANCH+1;Assembler-specific instruction to switch to ThumbSUB_BRANCH:BL ...
ARM (wanted to remove the if-then-elses and target specific stuff and make it a clean, simple, core) but got frustrated with it, I probably broke it so I wrote my own. The single file thumbulator.c is the instruction set simulator (ISS), the other directories are test programs and/...
ARM program segment, the ARM processor is said to be in the ARM working state, and when the processor is executing the Thumb program segment, the ARM processor is said to be in the Thumb working state. Thumb instruction set programming model does not change the underlying ARM system, just ...