misc

1 files changed, 5 insertions, 2 deletions

diff --git a/doc.txt b/doc.txt
index d65c981..0c84bcc 100644
--- a/doc.txt
+++ b/doc.txt
@@ -40,17 +40,20 @@
 	(clock): clock(3)
 	(say x): print representation of x, followed by newline
 	(write x): print representation of x, with no newline
+	(writebytes a): a is a list of nums in [0,255]
 	(arr): create new empty array
-	(append a x): appends to array a, returns a
-	(len a): get length of array a
+	(append! a x): appends to array a in place, returns a
+	(# a): get length of array a
 	(, ...): pend. concatenates arrays, promotes non-arrays to arrays
 				(, [1 2 3] 4) -> [1 2 3 4]
 				(, [1 2 3] [4 5]) -> [1 2 3 4 5]
 				(, 10 20) -> [10 20]  etc
+	(s, ...): spend. concatenates strings
 
 # cmdline args
 	bth [-Dl] [-Dt] filenames...
 		-Dl: print bytecode listing before execution
 		-Dt: trace each executed bytecode instruction
+		-Ds: dump read s-expressions
 		filename "-" can be provided to mean stdin.