lejulien
ba4d9afda9
Those are the examples and the asm & hack (assembled) from the project 6 of nand2tetris
31 lines
495 B
NASM
31 lines
495 B
NASM
// 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/6/max/Max.asm
|
|
|
|
// Computes R2 = max(R0, R1) (R0,R1,R2 refer to RAM[0],RAM[1],RAM[2])
|
|
// Usage: Before executing, put two values in R0 and R1.
|
|
|
|
// D = R0 - R1
|
|
@R0
|
|
D=M
|
|
@R1
|
|
D=D-M
|
|
// If (D > 0) goto ITSR0
|
|
@ITSR0
|
|
D;JGT
|
|
// Its R1
|
|
@R1
|
|
D=M
|
|
@OUTPUT_D
|
|
0;JMP
|
|
(ITSR0)
|
|
@R0
|
|
D=M
|
|
(OUTPUT_D)
|
|
@R2
|
|
M=D
|
|
(END)
|
|
@END
|
|
0;JMP
|