Level selection menu: function to compute valid directions and directional arrows OAM (#12)

2025-04-09 05:44:44 -07:00 · 2023-08-22 12:42:53 +02:00
parent c6601a79d3
commit e866cdab48
7 changed files with 197 additions and 1 deletions
--- a/home/array.asm
+++ b/home/array.asm
@@ -42,3 +42,16 @@ AddNTimes::
 	dec a
 	jr nz, .loop
 	ret
+
+; advance c [b]-terminated table entries in hl
+AdvanceNEntries::
+	ld a, c
+	and a
+	ret z
+.loop
+	ld a, [hli]
+	cp b
+	jr nz, .loop
+	dec c
+	jr nz, .loop
+	ret