Question

Mult Hack Assembly language

Help me complete the assembly language fore Mult.asm.

// Multiplies R0 and R1 and stores the result in R2.

// (R0, R1, R2 refer to RAM[0], RAM[1], and RAM[2], respectively.)

// Put your code here.

// Start R2 at 0.

@R2

M=0

// Jump into the first STEP if R0 > 0.

@R0

D=M

@STEP

D;JNE

// If it didn't jump, go to END.

@END

0;JMP

// Adds R1 to R2 and removes 1 from R0.

// If R0 is more than 0 we step again.

(STEP)
  
// Get R2.

@R2
  
D=M

  

// Add R1 to it.
  
@R1
  
D=D+M

  

// And write the result back to R2.
  
@R2
  
M=D

  

// Reduce R0 by 1.
  
@R0
  
D=M-1
  
M=D

  

// If R0 is still > 0 then loop.
  
@STEP
  
D;JGT

(END)
  
@END
  
0;JMP

Answer 1

Multiplication of number is as follows

The numbers reside in the memory location of Register R0 and R1.

@i

M=1

(LOOP)

@i

D=M

@R1

D=D-M

@END

D;JGT

@R0

D=M

@mul

M=M+D

@i

M=M+1

@LOOP

0;JMP

(END)

@END

0;JMP