Slide 5.7: Multiple initializers
Slide 5.9: Defining WORD and SWORD data
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Defining Strings

To create a string data definition, enclose a sequence of characters in quotation marks. A string is ended with a null byte, a byte containing the value 0. 


  preface  BYTE  "Hello", 0
Each character uses a byte of storage. The above code is equal to: 


  preface  BYTE  'H', 'e', 'l', 'l', 'o', 0
A string can be spread across multiple lines, for example: 


  preface  BYTE  "Assembly language for Intel computers", 0Dh, 0Ah


           BYTE  "A book for IA-32 processor architecture.", 0
The hexadecimal bytes 0Dh and 0Ah (carriage-return line-feed) advance the cursor to the beginning of the next line of standard output. The continuation character (\) may be used to concatenate two lines into a single program statement. For example, the following two statements are the same: 


  preface  BYTE  "Assembly language for Intel computers", 0


  preface \


  BYTE  "Assembly language for Intel computers", 0
 Replacing a Character  Printing Part of a String  4 + 6 


 .data


 s BYTE "This is ? test.", 0 


 .code



 



 mov   edx, OFFSET s


 call  WriteString
  


 .data


 s BYTE "This is ? test.", 0


 .code



 



 call  WriteString
  



 .data


 s BYTE "123456789", 0


 .code


 mov   eax, 0


 


 mov   al, [esi+3]


 sub   al, '0'


 add   al, [esi+5]


 sub   al, '0'


 call  WriteInt
 

 Output  Output  Output
  This is a test.     test.     10