From d7926f12ad88ddfddc96ba30df0ddddb4d37131b Mon Sep 17 00:00:00 2001
From: Ryan Dwyer <ryandwyer1@gmail.com>
Date: Sun, 20 Aug 2023 16:34:38 +1000
Subject: [PATCH] Fix incorrect rounding in C version of sinf

---
 src/lib/modelasm_c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/modelasm_c.c b/src/lib/modelasm_c.c
index c6a92477e..c443b9b91 100644
--- a/src/lib/modelasm_c.c
+++ b/src/lib/modelasm_c.c
@@ -1616,7 +1616,7 @@ f32 sinf(f32 radians)
 		if (t0 < 310) {
 			f14 = radians * 0.31830987334251f;
 
-			t1 = (s32) (f14 + 0.5f);
+			t1 = (s32) (f14 > 0.0f ? f14 + 0.5f : f14 - 0.5f);
 			f14 = t1;
 
 			f15 = M_PI;