in assembly language ( using kip irvines 7th edition) .heres the question: Creat

Question

in assembly language ( using kip irvines 7th edition) .heres the question:

Create a procedure named CalcGrade that receives an integer value between 0 and 100, and
returns a single capital letter in the AL register. Preserve all other register values between calls to the procedure. The letter returned by the procedure should be according to the following
ranges:

Score 90 to 100 Grade A
Score 80 to 89 Grade B
Score 70 to 79 Grade C
Score 0 to 69 Grade F

Write a test program that generates 10 random integers between 50 and 100, inclusive. Each
time an integer is generated, pass it to the CalcGrade procedure. You can test your program
using a debugger, or if you prefer to use the book’s library, you can display each integer and its
corresponding letter grade. (The Irvine32 library is required for this solution program because it
uses the RandomRange procedure.)

thanks

Explanation / Answer

HERE IS THE CODE:

INCLUDE Irvine32.inc
.data
grade BYTE ?,0
grA BYTE "A",0
grB BYTE "B",0
grC BYTE "C",0
grD BYTE "D",0
grF BYTE "F",0
out_of_range BYTE "The integer is not <= 100 and >= 0",0
.code
main PROC
call Randomize
mov ecx,10
L1:
mov eax,51
call RandomRange
add eax,50
call GradeCalc
mov edx,0
mov grade,al
mov edx, OFFSET grade
call WriteString
call Crlf
loop L1
exit
main ENDP
GradeCalc PROC
.IF (eax <= 100 && eax >= 0)
.IF (eax <= 100) && (eax > 89)
mov al,grA
.ELSEIF (eax < 90) && (eax > 79)
mov al,grB
.ELSEIF (eax < 80) && (eax > 69)
mov al,grC
.ELSEIF (eax < 70) && (eax > 59)
mov al,grD
.ELSE
mov al,grF
.ENDIF
.ELSE
mov edx,OFFSET out_of_range
call WriteString
call Crlf
ret
.ENDIF
ret
GradeCalc ENDP
END main

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