Please show work step by step on Microsoft words MAC283 CLASSWORK NO 10 (DUE ON JUNE 1st, XXXXXXXXXXWrite a line by line explanation to this program. 2. What does the program do at every routine?...

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Please show work step by step on Microsoft words
MAC283 CLASSWORK NO 10 (DUE ON JUNE 1st, 2022) 1. Write a line by line explanation to this program. 2. What does the program do at every routine? Explain. The program is here


here is the program! this is for assembly language class
.model small  .386  .stack 100h   .data  msg1 db 13, 10, "Enter any number --> ", "$" msg2 db  "Enter an operation +,- * or /  --> ",13, 10, "$" msg3 db  "The Operation is --> ", "$" msg4 db  "The result is --> ", "$" by_10 dd 10   sp_counter db 0  disp_number dd 0  disp_number2 dd 0 disp_number3 dd 0 op_type db 0 last_key dd 0  remainder db 0 .code   main proc mov ax,@data  mov ds,ax         mov dx,offset msg1 call display_message  call m_keyin  call operation mov dx,offset msg1 call display_message  call m_keyin cmp op_type, "+" jnz short skip_plus call op_plus skiP_plus: cmp op_type, "-" jnz short skip_minus call op_minus skip_minus:  cmp op_type, "*" jnz short skip_mul call op_mult skip_mul: cmp op_type, "/" jnz short skip_div  call op_div skip_div: call m_display  mov ax, 4c00h  int 21h   operation proc mov dx,offset msg2 rpt4: call display_message mov dx,offset msg3 call display_message mov ah, 1 int 21h cmp al, 30h jns rpt4 mov op_type, al   ret operation endp  m_display proc mov dx,offset msg4 call display_message mov eax, disp_number mov sp_counter, 0  LP1: mov edx, 0 div by_10 push dx inc sp_counter cmp eax, 0 jnz lp1  LP2: pop dx call display dec sp_counter jnz lp2 ret m_display endp  op_minus proc mov eax, disp_number2 sub eax, disp_number3 mov disp_number, eax ret op_minus endp op_div proc  mov eax, disp_number2 div disp_number3 mov disp_number, eax mov remainder, dl  call display call m_display mov dl, -16 call display  mov dl, remainder call display mov dl, -1 call display mov edx, disp_number3  call display   mov ax, 4c00h  int 21h  op_div endp  op_mult proc mov eax, disp_number2 mul disp_number3 mov disp_number, eax  ret op_mult endp op_plus proc mov eax, disp_number2 add eax, disp_number3 mov disp_number, eax ret op_plus endp display proc add dl, 30h cmp dl, 39h js short skip_hex add dl, 7 Skip_hex:   mov ah, 6 int 21h ret display endp  display_message proc mov ah, 9  int 21h mov edx, 0 ret display_message endp  m_keyin proc MOV disp_number, 0 mov last_key, 0 LP_key: mov eax, disp_number mul by_10  add eax, last_key mov DISP_NUMBER, eax    mov ah, 1  int 21h AND eax, 000000ffh cmp al, 13  jz short finkey  sub al, 30h   MOV LAST_KEY, EAX   jmp lp_key   finkey: MOV eax, DISP_NUMBER cmp DISP_NUMBER2,0 jnz short skip MOV DISP_NUMBER2, EAX skip: MOV DISP_NUMBER3, EAX ret m_keyin endp   main endp end main




Answered 1 days AfterMay 30, 2022

Answer To: Please show work step by step on Microsoft words MAC283 CLASSWORK NO 10 (DUE ON JUNE 1st,...

Nimesh answered on Jun 01 2022
74 Votes
All the assembly code description line by line is defined below.

.model small
//using small memory
//using segments of code, data and stack
.386
//work with 32bits
//Enables assembly of nonprivileged instructions for the 80386 processor
.stack 100h
//reserves 100h bytes for stack
.d
ata
//data section starts and initilized.
//dw - define byte, dw- define word, dd - define double word
msg1 db 13, 10, "Enter any number --> ", "$"
//moves the cursor to the next line and set to start of line
//Print "Enter any number --> "
//and take number as input
msg2 db "Enter an operation +,- * or / --> ",13, 10, "$"
//print "Enter an operation +,- * or / --> " and take appropriate input
msg3 db "The Operation is --> ", "$"
//print "The Operation is --> " and appropriate input
msg4 db "The result is --> ", "$"
//print "The result is --> " and apropriate input
by_10 dd 10
//by_10 taken as double word and value of it is 10
sp_counter db 0
//sp_counter taken as double word and value of it is 0
disp_number dd 0
//disp_number taken as double word and value of it is 0
disp_number2 dd 0
//disp_number2 taken as double word and value of it is 0
disp_number3 dd 0
//disp_number3 taken as double word and value of it is 0
op_type db 0
//op_type taken as double word and value of it is 0
last_key dd 0
//last_key taken as double word and value of it is 0
remainder db 0
//remainder taken as double word and value of it is 0
.code
//code segment start here
main proc
// main method start
mov ax,@data
//move starting address of data to ax
mov ds,ax
//data segment start or initilized
mov dx,offset msg1
call display_message
//call instruction do push the return address on the stack and start
execution of calling function.

call m_keyin
//call instruction do push the return address on the stack and start
execution of calling function.

call operation
//call instruction do push the return address on the stack and start
execution of calling function.

mov dx,offset msg1
call display_message
//call instruction do push the return address on the stack and start
execution of calling function.

call m_keyin
//call instruction do push the return address on the stack and start
execution of calling function.
cmp op_type, "+"
//compare op_type with +
jnz short skip_plus
// if comparision true then short jump with no zero flag to
skip_plus
call op_plus
//call instruction do push the return address on the stack and start
execution of calling function.
skiP_plus:
//skiP_plus statements
cmp op_type, "-"
//compare op_type with -
jnz short skip_minus
//if comparision true then short jump to skip_minus
call op_minus
//call instruction do push the return address on the stack and start
execution of calling function.
skip_minus:
// skip_minus statements
cmp op_type, "*"
//compare op_type with *
jnz short skip_mul
//if comparision...
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