Using the College Registration example from Section 6.7.3 as a starting point, d

Question

Using the College Registration example from Section 6.7.3 as a starting point, do the following:
-Recode the logic sing CMP and conditional jump instructions (instead of the .IF and .ELSEIF directives).
-Perform range checking on the credits value; it cannot be less than 1 or greater than 30. If an invalid entry is discovered, display an appropriate error message.
-Prompt the user for the grade average and credits values.
Display a message that shows the outcome of the evaluation, such as "The student can register" or "The student cannot register".

6.7.3 example:

.data
TRUE = 1
FALSE = 0
gradeAverage WORD 275 ; test value
credits WORD 12 ; test value
OkToRegister BYTE ?

.code
main PROC

mov OkToRegister,FALSE

.IF gradeAverage > 350
mov OkToRegister,TRUE
.ELSEIF (gradeAverage > 250) && (credits <= 16)
mov OkToRegister,TRUE
.ELSEIF (credits <= 12)
mov OkToRegister,TRUE
.ENDIF

In assembly languague programming and can you post the output

Explanation / Answer

INCLUDE Irvine32.inc
TRUE = 1
FALSE = 0
.data
gradeAverage WORD ?
credits WORD ?
oKToRegister BYTE ?
str1 BYTE "Error: Credits must be between 1 and 30" , 0dh,0ah,0
main PROC
call CheckRegs
exit
main ENDP
CheckRegs PROC
push edx
mov OkToRegister,FALSE
; Check credits for valid range 1-30
cmp credits,1 ; credits < 1?
jb E1
cmp credits,30 ; credits > 30?
ja E1
jmp L1 ; credits are ok
; Display error message: credits out of range
E1:
mov edx,OFFSET str1
call WriteString
jmp L4
L1:
cmp gradeAverage,350 ; if gradeAverage > 350
jna L2
mov OkToRegister,TRUE ; OkToRegister = TRUE
jmp L4
L2:
cmp gradeAverage,250 ; elseif gradeAverage > 250
jna L3
cmp credits,16 ; && credits <= 16
jnbe L3
mov OkToRegister,TRUE ; OKToRegister = TRUE
jmp L4
L3:
cmp credits,12 ; elseif credits <= 12
ja L4
mov OkToRegister,TRUE ; OKToRegister = TRUE
L4:
pop edx ; endif
ret
CheckRegs ENDP
END main

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