Factorial by yowa

  
   \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:

mark null
push +1(1b)
push -0(0b)
dup
geti
retr
mark +0(0b)
dup
jzero -0(0b)
swap
copy +1(1b)
mul
swap
push +1(1b)
sub
jump +0(0b)
mark -0(0b)
pop
puti
push +10(4b)
putc
jump null

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