Prev: BAD0 Up: Map Next: BAEF
BAE4: Score borrow: digit 4 → digit 3
Used by the routine at score_dec_lo.
score_borrow_lo BAE4 LD A,H A = H; DEC A
BAE5 DEC A
BAE6 CP $2F CP $2F — check for underflow
BAE8 CALL Z,score_borrow_mid If underflow, call score_borrow_mid (borrow from digits 1–2)
BAEB LD H,A LD H,A
BAEC LD A,$39 LD A,$39 ; Reset digit 3 to '9'
BAEE RET
Prev: BAD0 Up: Map Next: BAEF