ipl.nas

; hello-os
;FAT12

	ORG	0x7c00

	JMP	entry
	DB	0x90

	DB      "HELLOIPL"            
        DW      512          
        DB      1          
        DW      1         
        DB      2        
        DW      224    
        DW      2880 
        DB      0xf0  
        DW      9    
        DW      18  
        DW      2  
        DD      0
        DD      2880 
        DB      0,0,0x29 
        DD      0xffffffff  
        DB      "HELLO-OS   " 
        DB      "FAT12   "    
        RESB    18                   

entry:
	MOV	AX,0
	MOV	SS,AX
	MOV	SP,0x7c00
	MOV	DS,AX
	MOV	ES,AX

	MOV	SI,msg

putloop:
	MOV	AL,[SI]		;can also be AL, BYTE [SI]
	ADD	SI,1
	CMP	AL,0
	JE	fin
	MOV	AH,0x0e
	MOV	BX,15
	INT	0x10	
	JMP	putloop

fin:
	HLT
	JMP	fin

msg:
	DB	0x0a, 0x0a
	DB	"hello, world"
	DB	0x0a
	DB	0

	RESB	0x7dfe-$

	DB	0x55,0xaa