diff --git a/docs/source/todo.rst b/docs/source/todo.rst
index 51ac6e45e..45a687f17 100644
--- a/docs/source/todo.rst
+++ b/docs/source/todo.rst
@@ -45,6 +45,7 @@ Compiler:
 - ir: the @split arrays are currently also split in _lsb/_msb arrays in the IR, and operations take multiple (byte) instructions that may lead to verbose and slow operation and machine code generation down the line.
   maybe another representation is needed once actual codegeneration is done from the IR...?
 - ir: getting it in shape for code generation...
+- ir: make sure that a 6502 codegen based off the IR, still generates BIT instructions when testing bit 7 or 6 of a byte var.
 - [problematic due to using 64tass:] better support for building library programs, where unused .proc are NOT deleted from the assembly.
   Perhaps replace all uses of .proc/.pend/.endproc by .block/.bend will fix that with a compiler flag?
   But all library code written in asm uses .proc already..... (textual search/replace when writing the actual asm?)