;**
;** 97.461 LAB 1 Part B.
;**
;** A simple test program that enters an infinite loop.
;**
;** NOTE: This is an explanation of the assembler directives shown in
;** in the program.  You are not required to become completely
;** familiar with the assembler.  It is just a tool to help you learn
about
;** the SDK-86.  Read the following to get a idea of the basics.
;** Use the two programs shown in this lab as examples of templates for
;** your 8086 code.
;**
;** The statements PROG  SEGMENT and PROG  ENDS define a segment
containing
;** program, data, or both, to be placed somewhere in virtual memory.
;** An entire assembler program may have many segments.  The name PROG
is
;** arbitrary.  PROG is gets set to an immediate value that points to
the
;** beginning of the segment.  It can be used in statements such as
;** MOV AX,PROG
;** MOV DS,AX
;** to set register DS to the segment part of a physical address for
;** addressing data within the segment.
;**
;** The ORG 00100H tells the assembler/linker/loader that the statements

;** after the ORG will start at the physical address 00100H.
;**
;** ASSUME CS:PROG,DS:PROG causes two things to occur.  First, the
;** linker/loader will automatically set the CS register to the
;** value of PROG after the program is loaded.  Note that DS does NOT
;** get set automatically.  (DS gets set by the first two statements of
;** the program).  The second thing the ASSUME CS:PROG,DS:PROG does is
;** tell the assembler the segment to which variables have their default

;** offset.
;**
;** The last statement END START tells the loader what to put in the IP
;** register before the program is run, i.e. the first statement of the
;** program to be executed.
;**
PROG SEGMENT
ORG 00100H
ASSUME CS:PROG,DS:PROG

START:
 MOV AX,CS
 MOV  DS,AX
LOOP: MOV BX,150H
 MOV AX,[BX]
 ADD AX,[BX+2]
 MOV [BX+4],AX
 MOV BX,160H
 MOV [BX],AX
 JMP LOOP

ORG 00150H
 DW 0003H
 DW 0009H

PROG ENDS
 END START