我刚接触整个汇编FASM
我已经通过这个教程实现了WriteString
INT 10h / AH = 13h - write string.
input:
AL = write mode:
bit 0: update cursor after writing;
bit 1: string contains attributes.
BH = page number.
BL = attribute if string contains only characters (bit 1 of AL is zero).
CX = number of characters in string (attributes are not counted).
DL,DH = column, row at which to start writing.
ES:BP points to string to be printed.
就像那样。
include 'proc32.inc'
org 0x7c00
mov ax,ds
mov es,ax
jmp start
start:
ccall puts,message,0x000c,attribute,0x02,0x00,0x00,0x00
stop:
jmp stop
attribute db 0x0F
message db 'hello world!','$'
proc puts,string,length,attribute,mode,page,row,column
mov al,byte [mode]
mov bh,byte [page]
mov bl,byte [attribute]
mov dl,byte [column]
mov dh,byte [row]
mov cx,word [length]
lea bp,[string]
mov ah,0x13
int 0x10
ret
endp
问题:
FASM没有报错,但过程无法返回或工作!