1 files changed, 13 insertions, 0 deletions
diff --git a/engine/rng.asm b/engine/rng.asm
new file mode 100755
index 00000000..a0e0daa7
--- /dev/null
+++ b/engine/rng.asm
@@ -0,0 +1,13 @@
+GenRandom_: ; 13a8f (4:7a8f)
+; generate a random 16-bit integer and store it at $FFD3,$FFD4
+	ld a,[rDIV]
+	ld b,a
+	ld a,[H_RAND1]
+	adc b
+	ld [H_RAND1],a
+	ld a,[rDIV]
+	ld b,a
+	ld a,[H_RAND2]
+	sbc b
+	ld [H_RAND2],a
+	ret