diff --git a/assembler-8608.lua b/assembler-8608.lua
index 9112500..e62e26b 100644
--- a/assembler-8608.lua
+++ b/assembler-8608.lua
@@ -315,7 +315,8 @@ local function prefixCode(code, fn) -- fix strings, add line numbers
 			elseif c=="\t" or c==" " then if (not lastnl) then out(" ") end
 			elseif c=="\"" then state = "string" lastnl = false
 			elseif c=="\\" then skipnl = true; out("\\");
-			elseif c:find("^[a-zA-Z0-9_%.:%$%(%)%*,%[%]%+%-%*%/]$") then out(c); lastnl = false
+			elseif c==":" then out(c); if skipnl then out("\\") else out("\n") end; lastnl = true;
+			elseif c:find("^[a-zA-Z0-9_%.%$%(%)%*,%[%]%+%-%*%/]$") then out(c); lastnl = false
 			elseif c=="{" then
 				table.insert(bracestack, bracelabel())
 				if not lastnl then out(bracestack[#bracestack].."MID") end
diff --git a/readme.txt b/readme.txt
new file mode 100644
index 0000000..10ce28f
--- /dev/null
+++ b/readme.txt
@@ -0,0 +1,12 @@
+
+8608
+
+How to use the assembler:
+1. Install bllua3 from https://notabug.org/redo/bllua3
+2. Clone this repo into the Blockland folder
+3. In BL console,
+    luaexec("your_path/assembler-8608.lua");
+4. To assemble a program, place a 1x1f ghost brick on the top-left corner of the ROM, face forward, and in BL console do
+    AssembleFile("other_path/filename.asm", "RomX RomY RomZ"); where RomX is the width of the ROM, RomY is the depth front to back, and RomZ is the height in bits.
+You can also run the assembler from the command line to get a memory dump and disassembly in stdout, if you have lua installed:
+	luajit "your_path/assembler-8608.lua" "other_path/filename.asm"