Problem-4 (40 Points)ORG $2600VAL1VAL2RMB 2RMB 2FCB $22, $4D, $9FFDB $130, $5C, $8FEQU $31EQU $41DAT1DAT2RAD1RAD2Execute the following instructions based on the information shown above. Write answers tothe next of each instruction.InstructionsResultsInstructionsResultsX = $2600X = $2602X = $2604A = $41LDX#VAL1LDAA #RAD2A = $42D = $0031D = $227ED = $0041D = $2645LDX#VAL2ADDA DAT2LDX #DAT1LDD#RAD1A = $9FX = $2607A = $5CLDAA 2,XADDD DAT1LDDLDX #DAT2#RAD2LDAA 3,XADDD #DAT1A = $31LDAA #RAD1A = $53ADDA DAT1

Question
Asked Feb 11, 2020
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Please explain how do we get the answer in the circle: D= $2645 

Problem-4 (40 Points)
ORG $2600
VAL1
VAL2
RMB 2
RMB 2
FCB $22, $4D, $9F
FDB $130, $5C, $8F
EQU $31
EQU $41
DAT1
DAT2
RAD1
RAD2
Execute the following instructions based on the information shown above. Write answers to
the next of each instruction.
Instructions
Results
Instructions
Results
X = $2600
X = $2602
X = $2604
A = $41
LDX
#VAL1
LDAA #RAD2
A = $42
D = $0031
D = $227E
D = $0041
D = $2645
LDX
#VAL2
ADDA DAT2
LDX #DAT1
LDD
#RAD1
A = $9F
X = $2607
A = $5C
LDAA 2,X
ADDD DAT1
LDD
LDX #DAT2
#RAD2
LDAA 3,X
ADDD #DAT1
A = $31
LDAA #RAD1
A = $53
ADDA DAT1
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Problem-4 (40 Points) ORG $2600 VAL1 VAL2 RMB 2 RMB 2 FCB $22, $4D, $9F FDB $130, $5C, $8F EQU $31 EQU $41 DAT1 DAT2 RAD1 RAD2 Execute the following instructions based on the information shown above. Write answers to the next of each instruction. Instructions Results Instructions Results X = $2600 X = $2602 X = $2604 A = $41 LDX #VAL1 LDAA #RAD2 A = $42 D = $0031 D = $227E D = $0041 D = $2645 LDX #VAL2 ADDA DAT2 LDX #DAT1 LDD #RAD1 A = $9F X = $2607 A = $5C LDAA 2,X ADDD DAT1 LDD LDX #DAT2 #RAD2 LDAA 3,X ADDD #DAT1 A = $31 LDAA #RAD1 A = $53 ADDA DAT1

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Explanation of given information:

The working of given instructions are following:

  • ORG $2600 – Set the program location counter location to the address $2600
  • VAL1 RMB 2 – Advances the program location counter by 2 and assigns the label VAL1.
  • VAL2 RMB 2 – Advances the program location counter by 2 and assigns the label VAL2.
  • DAT1 FCB $22, $4D, $9F – Stores the values $22, $4D, $...

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