deep-wine-runner/VM-source/test-kvm.asm

89 lines
1.5 KiB
NASM
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2023-11-05 13:56:43 +08:00
mov ax,0xb800
mov es,ax
; 清屏
mov cx,80*25
clean:
mov di,cx
add di,di
mov byte [es:di],''
add di,1
mov byte [es:di],0x0F
loop clean
; 显示上方白条
; 移除(0,0)的S字符
mov byte [es:0x00],''
mov cx,80*2-1
mov di,0
headtitle:
mov di,cx
mov byte [es:di],0xF0
; 写入空字符
add di,di
mov byte [es:di],''
;inc cx
;sub cx,1
loop headtitle
mov di,0
mov cx,80*2-1
; 显示下方白条
tailtitle:
mov di,cx
add di,80*2*24
mov byte [es:di],0xF0
; 写入空字符
mov di,cx
add di,di
add di,80*2*24
mov byte [es:di],''
loop tailtitle
; 在第一行写入文本 Hello World!
jmp near showHeadText
headText: db 'Hello World!'
showHeadText:
; 虽然可以简单粗暴的用 movsw但是会出现问题
mov cx,showHeadText-headText
mov ax,0x7c0
mov ds,ax ; 定位到汇编程序所在的内存地址
showHeadTextLoop:
mov dx,cx
mov di,cx
add di,di
mov si,headText
sub dx,1
add si,dx
; inc si
; mov al,1000
mov al,[ds:si]
mov byte [es:di],al
loop showHeadTextLoop
jmp near showTailText
tailText: db '2020~Now gfdgd xi'
showTailText:
mov cx,showTailText-tailText
mov ax,0x7c0
mov ds,ax
showTailTextLoop:
mov dx,cx
mov di,cx
add di,di
add di,80*2*24
mov si,tailText
sub dx,1
add si,dx
mov al,[ds:si]
mov byte [es:di],al
loop showTailTextLoop
poweroff:
; 跳过关机
jmp near end
; 关机
mov ax,5307H ; 高级电源管理功能,设置电源状态
mov bx,0001H ; 设备ID1所有设备
mov cx,0003H ; 状态3表示关机
int 15h
end:
times 510-($-$$) db 0
db 0x55,0xaa