[Coco] Keyboard PEEKing

[Brett Gordon]

uhm.. just use the ROM routines? "unravelled" has a list of routine
addresses. jsr $a1cb.*  It returns 0 if nothing is pressed, else it returns
ascii value of FIRST key found to have changed state. If you want the
status of all keys**  at last poll check out the bitmap at $152, or
directly call the keyboard code to cause an update of that map.

$152 is BASIC's memory.. so it can see what changed from last poll.  A key
gets registered when is goes from 1 to 0***. ignore the return and peek
$152-?  area for changes.

'Luck,

brett

*
** Are all keys mashed like hulk electrically doable?
*** or is it 0 to 1?