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Hide Superclass Static Methods in Java

Hiding!
2023-05-23
Programming Language
#Java #Inheritance #Static #Polymorphism #Overriding #Hiding

Subnet and IPv4 Classes

Understand it quickly with a table.
2023-05-15
Computer Network
#IP #Routing #Subnet #Subnet Mask #IPv4

Update Weights in Linear Perceptron

2023-05-12
Algorithms & Data Structures
#Optimization #Machine Learning #Artificial Intelligence #Linear Perceptron #Neural Network #Deep Learning

A MDP Take-away

Mainly focusing on value iteration and policy iteration.
2023-05-06
Algorithms & Data Structures
#Optimization #MDP #Machine Learning #Artificial Intelligence #Bellman Equation

Manipulate 64-bit value with 32-bit registers

How to add and subtract a 32-bit unsigned number to/from a 62-bit unsigned number stored in two registers.
2023-04-15
Algorithms & Data Structures
#RISC-V #Register

Peripheral Interrupt Procedure in RISC-V

Some notes on PLIC and external interrupt in machine mode.
2023-04-02
Operating System & Architecture
#RISC-V #QEMU #Emulation #Peripheral #Interrupt #PLIC #FDT

Align Number to Multiple

Aligning an integer to its closest muplitple of number m is easy. But if m is a power of 2, using bitwise operations can help a lot.
2023-03-12
Algorithms & Data Structures
#Optimization #Memory #Alignment #Bitwise Operation #xv6

Read and Write by Polling with UART

Exhilarating 'Hello world'.
2023-02-28
Operating System & Architecture
#Register #C #xv6 #QEMU #Emulation #UART #Baud Rate #Polling #Peripheral

RISC-V Machine Boot Code

Basic boot process of a RISC-V hardware, with sample bootstrap assembly code explained.
2023-02-23
Operating System & Architecture
#RISC-V #Register #C #Memory #xv6 #Bootstrap #Assembly #Stack #QEMU #Emulation

随想两则

2023-02-22
随笔
#生活
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