init template

53d34f1c · 赵鹏翀 · 53d34f1c · 53d34f1c · 53d34f1c · 53d34f1c
--- a/.gitignore
+++ b/.gitignore
+/*.img
+/bochs
+/Debug
+/Release
+bochsout.txt
\ No newline at end of file
--- a/Demo053.asmproj
+++ b/Demo053.asmproj
+<?xml version="1.0" encoding="gb2312"?>
+<ASMProject Version="1.00" Name="Demo053">
+	<Configurations>
+		<Configuration Name="Debug" ConfigurationType="2">
+			<Tool Name="PreBuildEventTool"/>
+			<Tool Name="CustomBuildTool"/>
+			<Tool Name="GCCCompilerTool"/>
+			<Tool Name="JWASMAssemblerTool" ObjectFormate="5" GenerateDebugInformation="-1" AdditionalOptions="/W0" VersionDebugInfo="-1"/>
+			<Tool Name="PreLinkEventTool"/>
+			<Tool Name="GCCLinkerTool"/>
+			<Tool Name="JWlinkLinkerTool" AdditionalOptions="disable 1014"/>
+			<Tool Name="PostBuildEventTool"/>
+		</Configuration>
+	</Configurations>
+	<Files>
+		<Filter Name="Դļ" Filter="asm">
+			<File RelativePath=".\main.asm">
+			</File>
+		</Filter>
+	</Files>
+</ASMProject>
--- a/Demo053.puo
+++ b/Demo053.puo
--- a/main.asm
+++ b/main.asm
+assume cs:codesg
+data segment    
+    dw 0,30,60,90,120,150,180
+    table   dw ag0, ag30, ag60, ag90, ag120, ag150, ag180     ;字符串偏移地址表
+    ag0     db 'sin(0)=0', 0                                  ;sin(0)对应的字符串“0”
+    ag30    db 'sin(30)=0.5', 0
+    ag60    db 'sin(60)=0.866', 0
+    ag90    db 'sin(90)=1', 0
+    ag120   db 'sin(120)=0.866', 0
+    ag150   db 'sin(150)=0.5', 0
+    ag180   db 'sin(180)=0', 0 
+data ends
+codesg segment
+start:
+    mov ax, data
+    mov ds, ax
+    mov bx, 0
+    mov cx, 7
+s:
+    mov ax, [bx] 
+    call showsin
+    inc bx
+    inc bx
+    loop s 
+    mov ax, 4c00h
+    int 21h
+showsin:                             ;用ax向子程序传递角度
+    jmp short show
+show:
+    push bx
+    push es
+    push si
+    mov bx, 0b800h
+    mov es, bx
+    mov ah, 0                        ;以下用角度/30作为相对于table的偏移，取得对应的字符串的偏移地址，放在bx中
+    mov bl, 30
+    div bl
+    mov bl, al
+    mov bh, 0
+    add bx, bx
+    ;mov bx, table[bx]
+    mov bx, [ds:table+bx]
+    mov si, 160*12+40*2              ;以下显示sin(x)对应的字符串
+shows:
+    mov ah, ds:[bx]
+    cmp ah, 0
+    je showret
+    mov es:[si], ah
+    inc bx
+    add si, 2
+    jmp short shows
+showret:
+    call clear                       ;调用清屏子程序
+    pop si
+    pop es
+    pop bx
+    ret
+clear:                               ;清屏
+    push bx
+    push cx
+    push es
+    mov bx, 0b800h
+    mov es, bx
+    mov bx, 0
+    mov cx, 2000
+clears:
+    mov byte ptr es:[bx], ' '
+    add bx, 2
+    loop clears
+    pop es
+    pop cx
+    pop bx
+    ret
+codesg ends
+end start
\ No newline at end of file