修改项目结构
This commit is contained in:
@@ -1,5 +1,10 @@
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import UIKit
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var greeting = "Hello, playground"
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import UIKit
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// 注释的几种类型
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// 单行注释
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4
01 注释.playground/contents.xcplayground
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01 注释.playground/contents.xcplayground
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@@ -0,0 +1,4 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>
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BIN
01 注释.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate
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01 注释.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate
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@@ -4,7 +4,7 @@
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<dict>
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<key>SchemeUserState</key>
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<dict>
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<key>SwiftStudy (Playground).xcscheme</key>
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<key>01 注释 (Playground).xcscheme</key>
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<dict>
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<key>isShown</key>
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<false/>
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@@ -1,3 +1,7 @@
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import UIKit
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var greeting = "Hello, playground"
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//: [Previous](@previous)
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//: ### 常量
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4
02 数据类型.playground/contents.xcplayground
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4
02 数据类型.playground/contents.xcplayground
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@@ -0,0 +1,4 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>
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7
02 数据类型.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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02 数据类型.playground/playground.xcworkspace/contents.xcworkspacedata
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@@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<Workspace
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version = "1.0">
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<FileRef
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location = "group:">
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</FileRef>
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</Workspace>
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@@ -1,3 +1,7 @@
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import UIKit
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var greeting = "Hello, playground"
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//: [Previous](@previous)
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//: ## 区间运算符
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4
03 流程控制.playground/contents.xcplayground
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4
03 流程控制.playground/contents.xcplayground
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@@ -0,0 +1,4 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>
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7
03 流程控制.playground/playground.xcworkspace/contents.xcworkspacedata
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03 流程控制.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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@@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<Workspace
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version = "1.0">
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<FileRef
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location = "group:">
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</FileRef>
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</Workspace>
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@@ -1,3 +1,7 @@
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import UIKit
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var greeting = "Hello, playground"
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//: [Previous](@previous)
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import Darwin
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4
04 函数.playground/contents.xcplayground
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4
04 函数.playground/contents.xcplayground
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@@ -0,0 +1,4 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>
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7
04 函数.playground/playground.xcworkspace/contents.xcworkspacedata
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7
04 函数.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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@@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<Workspace
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version = "1.0">
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<FileRef
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location = "group:">
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</FileRef>
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</Workspace>
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BIN
04 函数.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate
generated
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04 函数.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate
generated
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@@ -1,3 +1,7 @@
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import UIKit
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var greeting = "Hello, playground"
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//: [Previous](@previous)
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import Foundation
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4
05 枚举.playground/contents.xcplayground
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4
05 枚举.playground/contents.xcplayground
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@@ -0,0 +1,4 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>
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7
05 枚举.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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7
05 枚举.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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@@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<Workspace
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version = "1.0">
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<FileRef
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location = "group:">
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</FileRef>
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</Workspace>
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BIN
05 枚举.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate
generated
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BIN
05 枚举.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate
generated
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@@ -1,9 +1,11 @@
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import UIKit
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var greeting = "Hello, playground"
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//: [Previous](@previous)
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import Foundation
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var greeting = "Hello, playground"
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//: #### 可选项
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/*:
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可选项: 一般也叫可选类型，它允许将值设值为nil
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4
06 可选项.playground/contents.xcplayground
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4
06 可选项.playground/contents.xcplayground
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@@ -0,0 +1,4 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>
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7
06 可选项.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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7
06 可选项.playground/playground.xcworkspace/contents.xcworkspacedata
generated
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@@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<Workspace
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version = "1.0">
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<FileRef
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location = "group:">
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</FileRef>
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</Workspace>
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87
README.md
87
README.md
@@ -1,43 +1,44 @@
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//## 汇编语言
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//iOS使用的是AT&T的汇编语言
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//### 常见的寄存器
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//16个常用的寄存器
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//* rax、rbx、rcx 、rdx、rsi、rdi、rbp、rsp
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//* r8、r9、r10、r11、r12、r13、r14、r15
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//
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//寄存器的具体用途
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//* rax、rdx常作为函数的返回值使用
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//* rdi、rsi、rdx、rcx、r8、r9等寄存器常用于函数的参数
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//* rbp、rsp用于栈操作
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//* rip作为指令指针
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// * 存储着CPU下一条要执行的指令的地址
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// * 一旦CPU读取一条指令，rip会自动指向下一条指令
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//
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//```java
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//r开头: 64bit, 8字节
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//e开头: 32bit, 4字节
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//ax bx cx: 16bit, 2字节
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//ah al: 8bit，1字节
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//bh bl
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//```
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//
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//### 常见的汇编指令
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//
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//| 项目名称 | AT&T | Intel | 说明 |
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//|:-----------:|:---------------------------------------------------:|:----------------------------------------------:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|
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//| 寄存器名称 | %rax | rax| |
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//| 操作数顺序 | mvq %rax, %rdx | mv rdx, rax | 将rax的值赋给rdx|
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//| 常数\立即数 | movq $3, %rax <br> movq $0x10, %rax | mov rax, 3<br>mov rax, 0x10 | 将3赋值给rax<br>将0x10赋值给rax|
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//| 内存赋值 | movq $0xa, 0x1ff7(%rip) | mov qword ptr [rip+0x1ff7], 0xa | 将0xa赋值给地址为rip + 0x1ff7的内存空间 |
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//| 取内存地址 | leaq -0x18(%rbp), %rax | leaq -0x18(%rbp), %rax | 将rbp – 0x18这个地址值赋值给rax |
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//| jmp指令 | jmp *%rdx <br> jmp 0x4001002 <br> jmp *(%rax) | jmp rdx <br>jmp 0x4001002 <br>jmp [rax] | call和jmp写法类似 |
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//| 操作数长度 | movl %eax, %edx <br>movb $0x10, %al <br>eaw 0x10(%dx),%ax | mov edx, eax <br> mov al, 0x10 <br> lea ax, [dx + 0x10] | b = byte (8-bit) <br>s = short (16-bit integer or 32-bit floating point) <br>w = word (16-bit) <br>l = long (32-bit integer or 64-bit floating point) <br>q = quad (64 bit) <br>t = ten bytes (80-bit floating point) |
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//
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//
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//### lldb常见的命令
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//* thread step-over、next、n: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（源码级别）
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//* thread step-in、step、s: 单步运⾏行行，遇到子函数会进⼊入子函数（源码级别）
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//* thread step-inst-over、nexti、ni: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（汇编级别）
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//* thread step-inst、stepi、si: 单步运⾏行行，遇到子函数会进⼊入子函数（汇编级别）
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//* thread step-out、finish: 直接执⾏行行完当前函数的所有代码，返回到上一个函数（遇到断点会卡住）
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//
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## 汇编语言
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iOS使用的是AT&T的汇编语言
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### 常见的寄存器
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16个常用的寄存器
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* rax、rbx、rcx 、rdx、rsi、rdi、rbp、rsp
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* r8、r9、r10、r11、r12、r13、r14、r15
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寄存器的具体用途
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* rax、rdx常作为函数的返回值使用
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* rdi、rsi、rdx、rcx、r8、r9等寄存器常用于函数的参数
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* rbp、rsp用于栈操作
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* rip作为指令指针
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* 存储着CPU下一条要执行的指令的地址
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* 一旦CPU读取一条指令，rip会自动指向下一条指令
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```java
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r开头: 64bit, 8字节
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e开头: 32bit, 4字节
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ax bx cx: 16bit, 2字节
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ah al: 8bit，1字节
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bh bl
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```
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### 常见的汇编指令
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| 项目名称 | AT&T | Intel | 说明 |
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|:-----------:|:---------------------------------------------------:|:----------------------------------------------:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|
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| 寄存器名称 | %rax | rax| |
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| 操作数顺序 | mvq %rax, %rdx | mv rdx, rax | 将rax的值赋给rdx|
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| 常数\立即数 | movq $3, %rax <br> movq $0x10, %rax | mov rax, 3<br>mov rax, 0x10 | 将3赋值给rax<br>将0x10赋值给rax|
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| 内存赋值 | movq $0xa, 0x1ff7(%rip) | mov qword ptr [rip+0x1ff7], 0xa | 将0xa赋值给地址为rip + 0x1ff7的内存空间 |
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| 取内存地址 | leaq -0x18(%rbp), %rax | leaq -0x18(%rbp), %rax | 将rbp – 0x18这个地址值赋值给rax |
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| jmp指令 | jmp *%rdx <br> jmp 0x4001002 <br> jmp *(%rax) | jmp rdx <br>jmp 0x4001002 <br>jmp [rax] | call和jmp写法类似 |
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| 操作数长度 | movl %eax, %edx <br>movb $0x10, %al <br>eaw 0x10(%dx),%ax | mov edx, eax <br> mov al, 0x10 <br> lea ax, [dx + 0x10] | b = byte (8-bit) <br>s = short (16-bit integer or 32-bit floating point) <br>w = word (16-bit) <br>l = long (32-bit integer or 64-bit floating point) <br>q = quad (64 bit) <br>t = ten bytes (80-bit floating point) |
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### lldb常见的命令
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* thread step-over、next、n: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（源码级别）
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* thread step-in、step、s: 单步运⾏行行，遇到子函数会进⼊入子函数（源码级别）
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* thread step-inst-over、nexti、ni: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（汇编级别）
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* thread step-inst、stepi、si: 单步运⾏行行，遇到子函数会进⼊入子函数（汇编级别）
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* thread step-out、finish: 直接执⾏行行完当前函数的所有代码，返回到上一个函数（遇到断点会卡住）
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@@ -1,7 +0,0 @@
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//: [Previous](@previous)
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import Foundation
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var greeting = "Hello, playground"
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//: [Next](@next)
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@@ -1,12 +0,0 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='6.0' target-platform='ios' display-mode='raw' buildActiveScheme='true' importAppTypes='true'>
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<pages>
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<page name='01 注释'/>
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<page name='02 数据类型'/>
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<page name='03 流程控制'/>
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<page name='04 函数'/>
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<page name='05 枚举'/>
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<page name='06 可选项'/>
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<page name='07 汇编分析枚举'/>
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</pages>
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</playground>
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Binary file not shown.
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