From c18580f58f467c66ea71e24aa7da37ed7052736b Mon Sep 17 00:00:00 2001
From: Ryan Dwyer <ryandwyer1@gmail.com>
Date: Sun, 5 Apr 2020 13:02:15 +1000
Subject: [PATCH] Decompile func0f0969d0

---
 src/game/game_0969d0.c         | 79 +++++++++-------------------------
 src/include/game/game_096890.h |  2 +-
 src/include/game/game_0969d0.h |  2 +-
 3 files changed, 23 insertions(+), 60 deletions(-)

diff --git a/src/game/game_0969d0.c b/src/game/game_0969d0.c
index c1dc8ac2c..8bf5848ee 100644
--- a/src/game/game_0969d0.c
+++ b/src/game/game_0969d0.c
@@ -11,68 +11,31 @@
 #include "gvars/gvars.h"
 #include "types.h"
 
-const u32 var7f1ab850[] = {0x46fffe00};
-const u32 var7f1ab854[] = {0x40490fdb};
-const u32 var7f1ab858[] = {0x477fff00};
-const u32 var7f1ab85c[] = {0x46fffe00};
-const u32 var7f1ab860[] = {0x40490fdb};
-const u32 var7f1ab864[] = {0x477fff00};
-const u32 var7f1ab868[] = {0x00000000};
-const u32 var7f1ab86c[] = {0x00000000};
+f32 func0f0969d0(f32 value)
+{
+	s16 intval;
 
-GLOBAL_ASM(
-glabel func0f0969d0
-/*  f0969d0:	3c013f80 */ 	lui	$at,0x3f80
-/*  f0969d4:	44812000 */ 	mtc1	$at,$f4
-/*  f0969d8:	27bdffe8 */ 	addiu	$sp,$sp,-24
-/*  f0969dc:	afbf0014 */ 	sw	$ra,0x14($sp)
-/*  f0969e0:	460c203e */ 	c.le.s	$f4,$f12
-/*  f0969e4:	3c01bf80 */ 	lui	$at,0xbf80
-/*  f0969e8:	45020004 */ 	bc1fl	.L0f0969fc
-/*  f0969ec:	44813000 */ 	mtc1	$at,$f6
-/*  f0969f0:	10000010 */ 	beqz	$zero,.L0f096a34
-/*  f0969f4:	24047fff */ 	addiu	$a0,$zero,0x7fff
-/*  f0969f8:	44813000 */ 	mtc1	$at,$f6
-.L0f0969fc:
-/*  f0969fc:	3c017f1b */ 	lui	$at,%hi(var7f1ab850)
-/*  f096a00:	4606603e */ 	c.le.s	$f12,$f6
-/*  f096a04:	00000000 */ 	sll	$zero,$zero,0x0
-/*  f096a08:	45000003 */ 	bc1f	.L0f096a18
-/*  f096a0c:	00000000 */ 	sll	$zero,$zero,0x0
-/*  f096a10:	10000008 */ 	beqz	$zero,.L0f096a34
-/*  f096a14:	24048001 */ 	addiu	$a0,$zero,-32767
-.L0f096a18:
-/*  f096a18:	c428b850 */ 	lwc1	$f8,%lo(var7f1ab850)($at)
-/*  f096a1c:	46086282 */ 	mul.s	$f10,$f12,$f8
-/*  f096a20:	4600540d */ 	trunc.w.s	$f16,$f10
-/*  f096a24:	44048000 */ 	mfc1	$a0,$f16
-/*  f096a28:	00000000 */ 	sll	$zero,$zero,0x0
-/*  f096a2c:	00047c00 */ 	sll	$t7,$a0,0x10
-/*  f096a30:	000f2403 */ 	sra	$a0,$t7,0x10
-.L0f096a34:
-/*  f096a34:	0fc25a44 */ 	jal	func0f096910
-/*  f096a38:	00000000 */ 	sll	$zero,$zero,0x0
-/*  f096a3c:	44829000 */ 	mtc1	$v0,$f18
-/*  f096a40:	3c014f80 */ 	lui	$at,0x4f80
-/*  f096a44:	04410004 */ 	bgez	$v0,.L0f096a58
-/*  f096a48:	46809120 */ 	cvt.s.w	$f4,$f18
-/*  f096a4c:	44813000 */ 	mtc1	$at,$f6
-/*  f096a50:	00000000 */ 	sll	$zero,$zero,0x0
-/*  f096a54:	46062100 */ 	add.s	$f4,$f4,$f6
-.L0f096a58:
-/*  f096a58:	3c017f1b */ 	lui	$at,%hi(var7f1ab854)
-/*  f096a5c:	c428b854 */ 	lwc1	$f8,%lo(var7f1ab854)($at)
-/*  f096a60:	8fbf0014 */ 	lw	$ra,0x14($sp)
-/*  f096a64:	3c017f1b */ 	lui	$at,%hi(var7f1ab858)
-/*  f096a68:	46082282 */ 	mul.s	$f10,$f4,$f8
-/*  f096a6c:	c430b858 */ 	lwc1	$f16,%lo(var7f1ab858)($at)
-/*  f096a70:	27bd0018 */ 	addiu	$sp,$sp,0x18
-/*  f096a74:	03e00008 */ 	jr	$ra
-/*  f096a78:	46105003 */ 	div.s	$f0,$f10,$f16
-);
+	if (value >= 1) {
+		intval = 0x7fff;
+	} else if (value <= -1) {
+		intval = -0x7fff;
+	} else {
+		intval = value * 32767.0f;
+	}
+
+	return (func0f096910(intval) * M_PI) / 65535.0f;
+}
 
 GLOBAL_ASM(
 glabel func0f096a7c
+.late_rodata
+glabel var7f1ab85c
+.word 0x46fffe00
+glabel var7f1ab860
+.word 0x40490fdb
+glabel var7f1ab864
+.word 0x477fff00
+.text
 /*  f096a7c:	3c013f80 */ 	lui	$at,0x3f80
 /*  f096a80:	44812000 */ 	mtc1	$at,$f4
 /*  f096a84:	27bdffe8 */ 	addiu	$sp,$sp,-24
diff --git a/src/include/game/game_096890.h b/src/include/game/game_096890.h
index f844e2b72..91268324e 100644
--- a/src/include/game/game_096890.h
+++ b/src/include/game/game_096890.h
@@ -4,7 +4,7 @@
 #include "types.h"
 
 u32 func0f096890(void);
-u32 func0f096910(void);
+u32 func0f096910(s32 value);
 u32 func0f096964(void);
 
 #endif
diff --git a/src/include/game/game_0969d0.h b/src/include/game/game_0969d0.h
index 173987d57..d0135be64 100644
--- a/src/include/game/game_0969d0.h
+++ b/src/include/game/game_0969d0.h
@@ -3,7 +3,7 @@
 #include <ultra64.h>
 #include "types.h"
 
-u32 func0f0969d0(void);
+f32 func0f0969d0(f32 value);
 u32 func0f096a7c(void);
 
 #endif