From a000308104aab27c2dde9a306f1bc654b2db4806 Mon Sep 17 00:00:00 2001
From: Yuchen Pei <me@ypei.me>
Date: Wed, 29 Nov 2017 12:30:41 +0100
Subject: first commit

---
 projects/06/max/Max.asm  | 26 ++++++++++++++++++++++++++
 projects/06/max/MaxL.asm | 23 +++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 projects/06/max/Max.asm
 create mode 100644 projects/06/max/MaxL.asm

(limited to 'projects/06/max')

diff --git a/projects/06/max/Max.asm b/projects/06/max/Max.asm
new file mode 100644
index 0000000..b62c138
--- /dev/null
+++ b/projects/06/max/Max.asm
@@ -0,0 +1,26 @@
+// 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
diff --git a/projects/06/max/MaxL.asm b/projects/06/max/MaxL.asm
new file mode 100644
index 0000000..fc3ccbf
--- /dev/null
+++ b/projects/06/max/MaxL.asm
@@ -0,0 +1,23 @@
+// 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/MaxL.asm
+
+// Symbol-less version of the Max.asm program.
+
+@0
+D=M
+@1
+D=D-M
+@10
+D;JGT
+@1
+D=M
+@12
+0;JMP
+@0
+D=M
+@2
+M=D
+@14
+0;JMP
-- 
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