WORD Examples

Example 1:

*
.Print the screen on the default printer.
.
	WORD	0x5CD	;INT 5 ;MS-DOS Print Screen

In this example, it is better to use BYTE since the bytes must be reversed in order to write them in correct byte order format.

Example 2:

*
.Determine total configured memory in bytes.
.
TEMP	INTEGER	2
MEMORY	FORM	6
	BYTE	0xBF	;MOV DI,OFFSET TEMP+1
	WORD	TEMP+1
	BYTE	0xCD,0x12	;INT 12
	BYTE	0xAB	;STOSW
	MULT	"1024",TEMP,MEMORY

- Move the address of TEMP's data area (TEMP+1) into DI.

- INT 12 returns number of 1k blocks of configured memory in AX (in INTEGER format).

- MOVe the integer value returned in AX to TEMP (pointed to by DI) with STOSW.

- MULTiply TEMP by "1024" placing the result in MEMORY.

Example 3:

- Save contents of DS register.

- Load the AX register with next 2 bytes (0x40).

- Move the contents of AX into DS.

- Bitwise AND a byte value (the NOT value of 20H - 0xDF) into an address (0x17).

- Restore contents of DS register