4 files changed, 64 insertions, 0 deletions
diff --git a/projects/08/ProgramFlow/BasicLoop/BasicLoop.cmp b/projects/08/ProgramFlow/BasicLoop/BasicLoop.cmp
new file mode 100644
index 0000000..00d35d2
--- /dev/null
+++ b/projects/08/ProgramFlow/BasicLoop/BasicLoop.cmp
@@ -0,0 +1,2 @@
+| RAM[0] |RAM[256]|
+|    257 |      6 |
diff --git a/projects/08/ProgramFlow/BasicLoop/BasicLoop.tst b/projects/08/ProgramFlow/BasicLoop/BasicLoop.tst
new file mode 100644
index 0000000..50ca118
--- /dev/null
+++ b/projects/08/ProgramFlow/BasicLoop/BasicLoop.tst
@@ -0,0 +1,20 @@
+// 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/08/ProgramFlow/BasicLoop/BasicLoop.tst
+
+load BasicLoop.asm,
+output-file BasicLoop.out,
+compare-to BasicLoop.cmp,
+output-list RAM[0]%D1.6.1 RAM[256]%D1.6.1;
+
+set RAM[0] 256,
+set RAM[1] 300,
+set RAM[2] 400,
+set RAM[400] 3,
+
+repeat 600 {
+  ticktock;
+}
+
+output;
diff --git a/projects/08/ProgramFlow/BasicLoop/BasicLoop.vm b/projects/08/ProgramFlow/BasicLoop/BasicLoop.vm
new file mode 100644
index 0000000..dc5a92f
--- /dev/null
+++ b/projects/08/ProgramFlow/BasicLoop/BasicLoop.vm
@@ -0,0 +1,22 @@
+// 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/08/ProgramFlow/BasicLoop/BasicLoop.vm
+
+// Computes the sum 1 + 2 + ... + argument[0] and pushes the 
+// result onto the stack. Argument[0] is initialized by the test 
+// script before this code starts running.
+push constant 0    
+pop local 0         // initializes sum = 0
+label LOOP_START
+push argument 0    
+push local 0
+add
+pop local 0	        // sum = sum + counter
+push argument 0
+push constant 1
+sub
+pop argument 0      // counter--
+push argument 0
+if-goto LOOP_START  // If counter != 0, goto LOOP_START
+push local 0
diff --git a/projects/08/ProgramFlow/BasicLoop/BasicLoopVME.tst b/projects/08/ProgramFlow/BasicLoop/BasicLoopVME.tst
new file mode 100644
index 0000000..237fdff
--- /dev/null
+++ b/projects/08/ProgramFlow/BasicLoop/BasicLoopVME.tst
@@ -0,0 +1,20 @@
+// 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/08/ProgramFlow/BasicLoop/BasicLoopVME.tst
+
+load BasicLoop.vm,
+output-file BasicLoop.out,
+compare-to BasicLoop.cmp,
+output-list RAM[0]%D1.6.1 RAM[256]%D1.6.1;
+
+set sp 256,
+set local 300,
+set argument 400,
+set argument[0] 3,
+
+repeat 33 {
+  vmstep;
+}
+
+output;