From f4e82feb2492b0bf466c3921b3e9fc9d056f3ea3 Mon Sep 17 00:00:00 2001
From: Franklin Wei <git@fwei.tk>
Date: Sat, 21 Nov 2015 19:59:55 -0500
Subject: fix C transcompiler REPEAT

---
 README.md | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 48 insertions(+), 1 deletion(-)

(limited to 'README.md')

diff --git a/README.md b/README.md
index eba809a..c2e67fa 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,31 @@ Simple!
     IF iter < 20; GOTO loop_start
     LOG Done!
 
+### Prime Counter
+
+    #!/bin/ducky
+    LOG Counting...
+    NEWLINE
+    LET primes=0
+    LET MAX=100000
+    LET n = 2
+    LBL test_number
+    LET iter = 2
+    LET stop = sqrt n
+    LBL test_loop
+    IF !(n % iter); GOTO composite
+    INC iter
+    IF iter <= stop; GOTO test_loop
+    INC primes
+    LBL composite
+    INC n
+    IF n < MAX; GOTO test_number
+    LOG Number of primes below
+    LOGVAR MAX
+    LOG :
+    LOGVAR primes
+    NEWLINE
+
 ## Building
 
 POSIX systems are supported, as are some Rockbox targets.
@@ -57,10 +82,32 @@ This will create `a.out`, which contains the bytecode.
 
     ducky a.out
 
+## Technical Details
+
+The program consists of four parts: the interpreter, compiler, bytecode interpreter, and C transcompiler.
+
+### Interpreter
+
+Executes ducky directly.
+
+
+### Bytecode Compiler
+
+Compiles ducky to a stack-machine based bytecode.
+
+### Bytecode Interpreter
+
+Executes the bytecode generated by the bytecode compiler.
+
+### C Transcompiler
+
+Translates bytecode generated by the bytecode compiler into C.
+Depends on labels as values, which is a GCC extension.
+
 ## Future Directions
 
-   - Compile to C?
    - Refactor code
+   - Input
    - Add more builtins
    - Arrays?
    - Functions?
-- 
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