🚀 go-pugleaf

During the early 1980s there was a home micro known as the Dragon 32 which
had an m6809 CPU and limited compatibility with the TRS-80. One of the
lecturers here was involved in its development and managed to hide a secret
message in the ROM.

This was to do with the EOL sequence for the printer. During the boot
sequence this was copied from ROM to RAM to allow the user to get (eg) 
double spaced output if he wished.

Address	  Initial Value			Function

&H14A		1	The number of characters in the end-of-line
			sequence.  The EOL characters followed in succeeding
			locations from &H14B to &H150.  Thus there could be
			a maximum of 6 characters in an EOL sequence
&H14B		13	CR code (normal EOL sequence)
&H14C		10	LF code.  If the printer needed a CRLF EOL sequence
			&H14A could be POKEd with 2.

In fact &H14D to &H150 contained DNS<CR> so to get his initials printed at
the end of every line a user could POKE &H14A,6.

This micro also had a novel "feature" - a certain POKE would speed up the
CPU so your BASIC Space Invaders would run faster...
-- 
+-------------------+  +------------------------------+    +---------------+
| Stephen K Mulrine |--| "DO DUP I SWAP PLOT" - Forth |--+ | Robotron 2084 |-+
+-------------------+--------------------------------------+---------+----++ |
  | Ministry |---| Favourite film: "Merry Christmas Mr Ceausescu" |--| :) |--+
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