;  Source name     : EAT2.ASM
;  Executable name : EAT2.COM
;  Code model      : Real Mode Flat Model
;  Version         : 1.0
;  Created date    : 7/31/1999
;  Last update     : 9/11/1999
;  Author          : Jeff Duntemann
;  Description     : A simple example of a DOS .COM file programmed using
;                    NASM-IDE 1.1 and NASM 0.98 and incorporating procedures.


[BITS 16]               ; Set 16 bit code generation
[ORG 0x0100]            ; Set code start address to 100h (COM file)

[SECTION .text]         ; Section containing code

Start:	
    mov  DX,EatMsg1     ; Load offset of Eat1 string into DX
    call Writeln        ;   and display it
    mov  DX,EatMsg2     ; Load offset of Ear2 string into DX
    call Writeln        ;   and display it

    mov  ax, 04C00H     ; This function exits the program
    int  21H            ; and returns control to DOS.


;----------------------------------------|
;           PROCEDURE SECTION            |
;----------------------------------------|

Write:
    mov  AH,09H       ; Select DOS service 9: Print String
    int  21H          ; Call DOS
    ret               ; Return to the caller


Writeln:
    call Write        ; Display the string proper through Write
    mov  DX,CRLF      ; Load offset of newline string to DX
    call Write        ; Display the newline string through Write
    ret               ; Return to the caller

;----------------------------------------|
;           DATA SECTION                 |
;----------------------------------------|


[SECTION .data]              ; Section containing initialised data

EatMsg1   DB      "Eat at Joe's...",'$'
EatMsg2   DB      "...ten million flies can't ALL be wrong!",'$'
CRLF      DB      0DH,0AH,'$'