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【Cortex-M】System Handler Priority Registers（SHRP）寄存器

【System Handler Priority Registers（SHRP）】 The SHPR1-SHPR3 registers set the priority level, 0 to 255, of the exception handlers that have configurable priority. 【SHRP1】【SHRP2】【SHRP3】参考引用： Cortex-M3 Devices Generic User Guide.pdf

x86_64汇编基础：Basics

参考 https://cs61.seas.harvard.edu/site/2018/Asm1/ 正文 Registers Registers are the fastest kind of memory available in the machine. x86-64 has 14 general-purpose registers and several special-purpose registers. This table gives all the basic registers, wit

Section One: Before the Great Dark Cloud

Great Microprocessors of the Past and Present (V 13.4.0) (cpushack.com) Part I: The Intel 4004, the first (Nov 1971) . . The first single chip CPU was the Intel 4004, a 4-bit processor meant for a calculator. It processed data in 4 bits, but its instructi

Section Three: The Great Dark Cloud Falls: IBM's Choice.

Great Microprocessors of the Past and Present (V 13.4.0) (cpushack.com) Part I: DEC PDP-11, benchmark for the first 16/32 bit generation. (1970) . . . . The DEC PDP-11 was the most popular in the PDP (Programmed Data Processors) line of minicomputers, a s

ARM watchpoint/breakpoint registers

write_wb_reg()里的switch macro展开 4.19\arch\arm64\kernel\Hw_breakpoint.c static void write_wb_reg(int reg, int n, u64 val) { switch (reg + n) { GEN_WRITE_WB_REG_CASES(AARCH64_DBG_REG_BVR, AARCH64_DBG_REG_NAME_BVR, val); GEN_WRITE_WB_REG_CASES(AARCH

[ARM-register]-ARMv8的寄存器介绍

★★★ 友情链接 : 个人博客导读首页—点击此处 ★★★ 在介绍寄存器之前，我们先看下ARM中都有什么，以arm为例： 1、通用寄存器（1）、 a r m

Ⅲ型系统Modbus功能码简介

TYPE ModbusCmd : ( MODBUS_READ_COILS := 16#01, (* 读线圈 *) MODBUS_READ_DISCRETE_INPUTS := 16#02, (* 读输入线圈 *) MODBUS_READ_HOLDING_REGISTERS := 16#03, (* 读保持寄存器 *) MODBUS_READ_INPUT_REGISTERS :=

关于SMC instruction指令执行level的讨论

前段时间在分析kvm armv8部分源码的时候，发现一个很奇怪的smcc指令 include/linux/arm-smccc.h arm_smccc_1_1_invoke * 399 * This is a variadic macro taking one to eight source arguments, and 400 * an optional return structure. 401 * 402 * @a0-a7: arguments pas

redis6.0.5之HyperLogLog阅读笔记1-基数估算前言翻译

/* The Redis HyperLogLog implementation is based on the following ideas: Redis的超对数实现是基于以下的想法： * * The use of a 64 bit hash function as proposed in [1], in order to don't * limited to cardinalities up to 10^9, at the cost of just 1 additional

基于CAN通讯以及RS485的电机控制（ROS/Ubuntu）

一.电机这个SHABI电机是日本的多摩川伺服电机，型号也是很老的型号，中国的代理都没有见过。开始说使用CAN通讯控制电机，让我弄了一个多月，结果这玩意儿用中国的CAN卡根本就不行。二. CAN通讯开始的CAN通讯其实也学到了一些东西，CAN通讯主要就是对电机的ID号发送信息，最重要的三

System: The Stack - Push and Pop

The Stack: Push and Pop CS 301: Assembly Language Programming Lecture, Dr. Lawlor "The Stack" is a frequently-used area of memory designed for functions to use as temporary storage. This is normally where you store values while calling another

装饰器 1

# # 装饰器# # 注册登陆访问页面## def registers(f):# dic={}# username = input("请注册你得用户名：")# password = input("请注册你得密码:")# dic[username] = password# def loging(*args):# username1 = input("请输入你得用户名")#

3 Controller Registers

Controller registers are located in the MLBAR/MUBAR registers (PCI BAR0 and BAR1) that shall be mapped to a memory space that supports in-order access and variable access widths. For many computer architectures, specifying the memory space as uncacheable

Rocket - debug - TLDebugModuleInner

Rocket - debug - TLDebugModuleInner 简单介绍TLDebugModuleInner的实现。 1. 引入全局配置 1) cfg 引入DebugModulePrams： 2) hartSelFuncs 定义hartsel与hart id之间的映射函数： 2. 多个diplomacy node 1) dmiNode dmiNode是一个寄存器

Rocket - debug - dm registers

https://mp.weixin.qq.com/s/P48K17TyRoZC7xBMltbXKQ 简单介绍调试模块中每个寄存器的定义。 1. DMI_RegAddrs 记录DMI访问的各个寄存器的地址：在规范中定义如下： 2. DMSTATUSFields 在规范中定义如下： 3. DMCONTROLFields 寄存器

TCP-508N使用python modbus_tk库控制总结

我打算用PCL做三轮车的电动控制，上层用python写，通过modbus_tk库来组织发送协议，使用modbus_tk库前还需要调用pyserial库，所以某种意义上modbus_tk库就是数据结构的打包发送函数。PLC未到，先用带modbus协议的I/O模块做测试。首先modbus_tk中的宏定义如下： #modbus exception codes

X86 register

Table of Contents 首先介绍x86，x64， x86_64, amd64。 X86 64 Register and Instruction Quick Start Contents Registers General-Purpose Registers Floating-Point and SIMD Registers Instructions Starter Kit Resources x86 Registers General registers Segment register

开源 DotNetty 实现的 Modbus TCP/IP 协议

本项目的目的是为了学习 DotNetty 与 Modbus 协议，参考 modjn 实现功能 0x01: Read Coils (读取线圈/离散量输出状态) 0x02: Read Discrete Inputs (读取离散量输入值) 0x03: Read Holding Registers (读取保持寄存器值) 0x04: Read Input Registers (读取输入寄存器值) 0x05: Wr