I need to create a program in Assembly code that would do the following: RVAL =

Question

I need to create a program in Assembly code that would do the following:

RVAL = (XVAL - YVAL) - (ZVAL + 3 + XVAL) - 10 - ZVAL

Since they are memories, we cant subtract them. Figure another way out.

Have to use Call DumpRegs & Call DumpMem.

------Template to use:---------

TITLE

; Insert comment of what program will do here

INCLUDE Irvine32.inc

.data ; enter DATA below

.code ; enter CODE below

main PROC

CALL DumpRegs ; Dumps registry

CALL DumpMem ; Dumps in hexadecimal

exit

main ENDP

END main

-----------------------------------

Explanation / Answer

TITLE Addition and Subtraction ; program to evaluate RVAL = (XVAL - YVAL)-(ZVAL + 3 + XVAL)-10-ZVAL

INCLUDE c:IrvineIrvineIrvine32.inc

.data

RVAL SDWORD ? ; declare 32-bit signed double word

XVAL SDWORD 50 ; declare 32-bit signed double-word and initialize with 50

YVAL SDWORD 60 ; declare 32-bit signed double-word and initialize with 60

ZVAL SDWORD 70 ; declare 32-bit signed double-word and initialize with 70

.code

main PROC

MOV EAX, XVAL ; EAX = XVAL

SUB EAX, YVAL ; EAX = XVAL - YVAL

MOV EDX, ZVAL ; EDX = ZVAL

ADD EDX, 3 ; EDX = ZVAL + 3

ADD EDX, XVAL ; EDX = ZVAL + 3 + XVAL

SUB EDX, 10 ; EDX = (ZVAL + 3 + XVAL) - 10

SUB EDX, ZVAL ; EDX = (ZVAL + 3 + XVAL) - 10 - ZVAL

SUB EAX, EDX ; EAX = (XVAL - YVAL) - (ZVAL + 3 + XVAL) - 10 - ZVAL

MOV RVAL, EAX ; RVAL = (XVAL - YVAL) - (ZVAL + 3 + XVAL) - 10 - ZVAL given expression

CALL DumpRegs ; Dumps registery

MOV ESI, OFFSET RVAL ; Address RVAL is the start of memory to print

MOV EBX, SIZEOF RVAL ; EBX = 4

MOV ECX, 4 ; Prints 4 32-bit SDWORDS

CALL DumpMem ; Dumps in hexadecimal

exit

main ENDP

END main

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