Modify the following program so it can add two numbers between the values 0 and 9. The current program only handles one digit as the sum. Your program must handle up to 9 + 9 as input and output up to 18. Here is the starter program:
Operations
In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.
Basic Operators
An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.
Division Operator
We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:
Modulus Operator
Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.
Operators
In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.
Modify the following program so it can add two numbers between the values 0 and 9. The current program only handles one digit as the sum. Your program must handle up to 9 + 9 as input and output up to 18. Here is the starter program:
.ORIG x3000 ; begin at x3000
; input two numbers
IN ;input an integer character (ascii) {TRAP 23}
LD R3, HEXN30 ;subtract x30 to get integer
ADD R0, R0, R3
ADD R1, R0, x0 ;move the first integer to register 1
IN ;input another integer {TRAP 23}
ADD R0, R0, R3 ;convert it to an integer
; add the numbers
ADD R2, R0, R1 ;add the two integers
; print the results
LEA R0, MESG ;load the address of the message string
PUTS ;"PUTS" outputs a string {TRAP 22}
ADD R0, R2, x0 ;move the sum to R0, to be output
LD R3, HEX30 ;add 30 to integer to get integer character
ADD R0, R0, R3
OUT ;display the sum {TRAP 21}
; stop
HALT ;{TRAP 25}
; data
MESG .STRINGZ "The sum of those two numbers is: "
HEXN30 .FILL xFFD0 ; -30 HEX
HEX30 .FILL x0030 ; 30 HEX
.END
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
