Lab7

Assembling the following assembly program first by hand and then verify your result using the assembler. Write a report describe the assembling process. Your report file should include the symbol table and the machine code in binary for the assembly code and other related information to describe the assembling process.

.ORIG x3050
LD R1,SIX
LD R2,NUMBER
AND R3,R3,#0
AGAIN ADD R3,R3,R2
      ADD R1,R1,#-1
      BRp AGAIN
HALT
NUMBER .FILL #1
SIX .FILL x0006
.END

x3050 x2207 LD R1, SIX
x3051 x2405 LD R2, NUMBER
x3052 x56E0 AND R3, R3, #0
x3053 AGAIN x16C2 ADD R3, R3, R2
x3054 x127F ADD R1, R1, #-1
x3055 x03FD BRp AGAIN
x3056 xF025 HALT
x3057 NUMBER x0001
x3058 SIX x0006

  • Symbol table
Symbol Name Page Address
AGAIN x3053
NUMBER x3057
SIX x3058

  • Machine code
    0011 0000 0000 0000
    x3050 0010 0010 0000 0111
    x3051 0010 0100 0000 0101
    x3052 0101 0110 1110 0000
    x3053 0001 0110 1101 0010
    x3054 0001 0010 0111 1111
    x3055 0000 0011 1111 1101
    x3056 1111 0000 0010 0101
    x3057 0000 0000 0000 0001
    x3058 0000 0000 0000 0110

  • Process add R2 6 times, and store the result in R3

  • R3 = 6

Table Of Contents
Lab7