Computers and Technology, 02.03.2020 17:11 samueldfhung

Create the memory diagrams to show DATA memory contents and addresses after execution of each code segment.

a)

ORG $0800

TEMP RMB 1

VAR1 FCB $14

VAR2 FCB $35

ORG $0900

NOP

LDX #TEMP

LDAA VAR1

LDAB 2,X

ABA

STAA 0,X

STD 3,X

NOP

b) ORG $C000

NUMBAS FCB 2,4,7,5,3

SUM RMB 2

LDY #NUMBAS

LDX #0

LDAA #5

LOOP LDAB 0,Y

ABX

INY

DECA

BNE LOOP

STX SUM

NOP

c)

ORG $0B00

SCALE FCB $F2

CONST RMB 1

ANSWER RMB 2

ORG $0800

LDX #SCALE

LDAA #$25

STAA CONST

LDAB 0,X

MUL

STD ANSWER

NOP

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