1. Program
Pass I LC
Symbol Table
Pass II
Machine Code
ORG $400
Put $400 into LC
0000
START MOVE.W VALUE1,D0
Put START in symbol table and assign it $400. Increment LC by 6.
0400
START = $0400
Assemble opcode, get address for VALUE1 from symbol table. Increment LC.
ADD.W VALUE2,D0
Increment LC by 6.
0406
Assemble opcode, get address for VALUE2 from symbol table. Increment LC. D
MOVE.W D0,RESULT
040C
Assemble opcode, get address for RESULT from symbol table. Increment LC.
33C A
STOP #$2700
Increment LC by 4.
0412
Assemble opcode. Increment LC. 4E
VALUE1 DC.W 8
Put VALUE1 in symbol table and assign it $ Increment LC by 2.
0416
VALUE1 = $0416
Increment LC.
0008
VALUE2 DC.W
Put VALUE2 in symbol table and assign it $ Increment LC by 2.
0418
VALUE2 = $0418
0010
RESULT DS.W 1
Put RESULT in symbol table and assign it $041A. Increment LC by2.
041A
RESULT = $041A
END START
End of Pass1. Reset LC to 0.
041C
End Pass 2. [Set PC to START]