\x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09\x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09\x09\x09\x09 \x09 \x09 \x09 \x09 \x09 \x09\x09\x09\x09 \x09 \x09 \x09 \x09 \x09 \x09\x09\x09 \x09
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
call null mark +0(0b) dup putc call null call null swap dup push +5(3b) mod jzero +0(1b) pop swap copy +1(1b) sub dup jzero -0(0b) push +0(0b) retr div dup add push +1(1b) add mark -0(0b) push +61(6b) add mark +0(1b) putc jump +0(0b) mark null push +0(0b) dup getc retr ret