Changes
/* Key redefinition library */
ret
;check if there is a key is down at (HL);only the first key found is returned
;return carry is a key is down
;return key code in A : key code = (line*8)+bit
rrca
rrca
ld E,A ld D,0
add HL,DE
;so we get the address
pop AF;now get the
and 7
inc A
