From 3a97ec326ceba86c7afd3b3f92ef3b308beea835 Mon Sep 17 00:00:00 2001
From: Rangi <remy.oukaour+rangi42@gmail.com>
Date: Sun, 18 Apr 2021 15:51:07 -0400
Subject: Use pokecrystal's sine_table macro

---
 macros/data.asm | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'macros/data.asm')

diff --git a/macros/data.asm b/macros/data.asm
index f9274392..b5836b50 100644
--- a/macros/data.asm
+++ b/macros/data.asm
@@ -69,11 +69,11 @@ dbbw: MACRO
 	dw \3
 ENDM
 
-sine_wave: MACRO
-; \1: amplitude
+sine_table: MACRO
+; \1 samples of sin(x) from x=0 to x<32768 (pi radians)
 x = 0
-REPT $20
+REPT \1
 	dw (sin(x) + (sin(x) & $ff)) >> 8 ; round up
-x = x + (\1) * $40000
+x = x + DIV(32768, \1) ; a circle has 65536 "degrees"
 ENDR
 ENDM
-- 
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