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-// This file is part of www.nand2tetris.org
-// and the book "The Elements of Computing Systems"
-// by Nisan and Schocken, MIT Press.
-// File name: projects/06/max/Max.asm
-
-// Computes R2 = max(R0, R1) (R0,R1,R2 refer to RAM[0],RAM[1],RAM[2])
-
- @R0
- D=M // D = first number
- @R1
- D=D-M // D = first number - second number
- @OUTPUT_FIRST
- D;JGT // if D>0 (first is greater) goto output_first
- @R1
- D=M // D = second number
- @OUTPUT_D
- 0;JMP // goto output_d
-(OUTPUT_FIRST)
- @R0
- D=M // D = first number
-(OUTPUT_D)
- @R2
- M=D // M[2] = D (greatest number)
-(INFINITE_LOOP)
- @INFINITE_LOOP
- 0;JMP // infinite loop