2025-08-18 20:01:21

content/en/notes/coding/cheat_sheet/c/index.md

@@ -2,4 +2,54 @@
 title = 'C'
 date = 2024-09-20T04:17:50Z
 draft = false
-+++
++++
+
+<!-- 笔试题有的时候不给正常输入，只给plain text -->
+## Format Specifier
+
+Common specifiers:
+```
+%d      int
+%u      unsigned int
+%c      char
+%s      string (char s[])
+%p      void*
+%ld     long
+%lld    long long (64bits)
+%f      float/double
+%lf     float/double(usually used in scanf)
+```
+We can extend the format specifiers:
+``` C
+printf("%5d", 33);       // width      "   33"   
+printf("%.2f", 3.14159); // precision  "3.14"
+printf("%8.2f", 3.14159);// "    3.14"
+printf("%-5d", 33);      //Alignment   "33   "
+```
+
+## IO
+Read or print via terminal:
+
+``` C
+int x;
+scanf("%d", &x);
+printf("%d", x);
+```
+
+
+## Type Conversion
+String to int, float....
+``` c
+int i = atoi("123");
+double d = atof("3.14");
+
+long l = strtol("123", NULL, 10);  // safer, auto detec errors
+double d2 = strtod("3.14", NULL);
+```
+
+Numbers to string:
+``` c
+int i = 123;
+char buf[20];
+sprintf(buf, "%d", i); 
+```

content/en/notes/coding/cheat_sheet/git/_index.md

@@ -32,12 +32,12 @@ git remote add private https://<git_domain>/<username>/project-private.git
 
 
 ## Branch
-List all branches:
+List all branches, the branch where you are currently working is marked with an asterisk (*):
 ``` bash
 git branch -a
 ```
 
-Move to a specific branch, the branch where you are currently working is marked with an asterisk (*):
+Move to a specific branch:
 ``` bash
 git checkout <branch_name>
 ```

content/en/notes/coding/cheat_sheet/git/index.md

@@ -0,0 +1,11 @@
++++
+title = 'Git'
+date = 2024-09-20T04:17:50Z
+draft = false
++++
+
+## Commit
+1. Add date and time in commit messages:
+``` bash
+git commit -m "$(date '+%Y-%m-%d %H:%M:%S')"
+```

content/en/notes/mcu/_index.md

@@ -7,5 +7,7 @@ weight = 100
 
 Here are some insights from my experiences with MCUs. Additionally, you can find my personal MCU benchmark site [here](https://mcubenchmark.swangnice.cn).
 
+Additionally, I know several excellent books about CPU architecture and plan to share a series of notes based on them.
+
 
 

content/en/notes/mcu/cpu_architecture_notes/_index.md

@@ -0,0 +1,14 @@
++++
+title = "Notes on CPU Architecture"
+date = 2024-09-20T04:17:50Z
+draft = false
+series = ["CPU Architecture Notes"]
+series_order = 1
+weight = 1
++++
+
+I hope to share several books about CPU architecture here, and this is a book list:
+1. Computer Organization and Design RISC-V Edition. _David A. Patterson & John L. Hennessy_
+2. Computer Architecture: A Quantitative Approach. _John L. Hennessy & David A. Patterson_
+
+Additionally, I plan to create CPU demonstrations using Verilog/SystemVerilog.