Question

Write an 8086 assembly program to compute the following:
y = 3x + 9x - 10
where x and y are 32-bit integer variables. x is in the range of (1 = < x < = 8). y is a list (use DUP when identifying and initializing y list). y only contains the result of x = 1, 3, 5, and 7. Use if-statement and while loop. The values of the y list after running the program should be: 2, 26, 50, 74

Answer 1

   MOV   CX,1000h   // Address of input
   MOV   DX,2000h   // Address of Output
   MOV   AL,[CX]       // Copy the input to Accumulator
   JS   END       // Terminate if Negative
   SUB   AL,8       // To check the number is less than 8
   JNS   END       // Terminate if Greater than 8
   MOV   AL,[CX]       // Copy the input to Accumulator
   AND   AL,0001b   // To check odd number  
   JZ   END       // Terminate if even
   MOV   AL,[CX]       // Copy the input to Accumulator
   MOV   BL,12
   MUL   BL
   SUB   AL,10       // AL <-- 12*X - 10
   MOV   [DX],AL       // Move the output to destination address location
END   HLT           // Terminate the program