diff --git a/src/lib/mtx.c b/src/lib/mtx.c
index 5cbbaa490..45022982e 100644
--- a/src/lib/mtx.c
+++ b/src/lib/mtx.c
@@ -580,175 +580,34 @@ void mtx0001719c(f32 arg0[4][4], f32 arg1[4][4])
 	arg1[3][3] = 1;
 }
 
-GLOBAL_ASM(
-glabel mtx000172f0
-/*    172f0:	c4820000 */ 	lwc1	$f2,0x0($a0)
-/*    172f4:	c48c0014 */ 	lwc1	$f12,0x14($a0)
-/*    172f8:	c48e0028 */ 	lwc1	$f14,0x28($a0)
-/*    172fc:	c4900004 */ 	lwc1	$f16,0x4($a0)
-/*    17300:	460c1102 */ 	mul.s	$f4,$f2,$f12
-/*    17304:	c4920018 */ 	lwc1	$f18,0x18($a0)
-/*    17308:	c48a0020 */ 	lwc1	$f10,0x20($a0)
-/*    1730c:	27bdffd0 */ 	addiu	$sp,$sp,-48
-/*    17310:	3c013f80 */ 	lui	$at,0x3f80
-/*    17314:	e7aa0010 */ 	swc1	$f10,0x10($sp)
-/*    17318:	c7a80010 */ 	lwc1	$f8,0x10($sp)
-/*    1731c:	460e2002 */ 	mul.s	$f0,$f4,$f14
-/*    17320:	c48a0008 */ 	lwc1	$f10,0x8($a0)
-/*    17324:	46128182 */ 	mul.s	$f6,$f16,$f18
-/*    17328:	e7aa000c */ 	swc1	$f10,0xc($sp)
-/*    1732c:	c7aa000c */ 	lwc1	$f10,0xc($sp)
-/*    17330:	46083102 */ 	mul.s	$f4,$f6,$f8
-/*    17334:	c4860010 */ 	lwc1	$f6,0x10($a0)
-/*    17338:	e7a60008 */ 	swc1	$f6,0x8($sp)
-/*    1733c:	c7a60008 */ 	lwc1	$f6,0x8($sp)
-/*    17340:	46040000 */ 	add.s	$f0,$f0,$f4
-/*    17344:	c4840024 */ 	lwc1	$f4,0x24($a0)
-/*    17348:	e7a80000 */ 	swc1	$f8,0x0($sp)
-/*    1734c:	e7a4001c */ 	swc1	$f4,0x1c($sp)
-/*    17350:	46065102 */ 	mul.s	$f4,$f10,$f6
-/*    17354:	c7a8001c */ 	lwc1	$f8,0x1c($sp)
-/*    17358:	46082102 */ 	mul.s	$f4,$f4,$f8
-/*    1735c:	46040000 */ 	add.s	$f0,$f0,$f4
-/*    17360:	460c5102 */ 	mul.s	$f4,$f10,$f12
-/*    17364:	c7aa0000 */ 	lwc1	$f10,0x0($sp)
-/*    17368:	460a2102 */ 	mul.s	$f4,$f4,$f10
-/*    1736c:	00000000 */ 	nop
-/*    17370:	46068282 */ 	mul.s	$f10,$f16,$f6
-/*    17374:	46040001 */ 	sub.s	$f0,$f0,$f4
-/*    17378:	460e5102 */ 	mul.s	$f4,$f10,$f14
-/*    1737c:	00000000 */ 	nop
-/*    17380:	46121182 */ 	mul.s	$f6,$f2,$f18
-/*    17384:	44811000 */ 	mtc1	$at,$f2
-/*    17388:	46040001 */ 	sub.s	$f0,$f0,$f4
-/*    1738c:	46083282 */ 	mul.s	$f10,$f6,$f8
-/*    17390:	460a0001 */ 	sub.s	$f0,$f0,$f10
-/*    17394:	460e6102 */ 	mul.s	$f4,$f12,$f14
-/*    17398:	00000000 */ 	nop
-/*    1739c:	46124182 */ 	mul.s	$f6,$f8,$f18
-/*    173a0:	46001003 */ 	div.s	$f0,$f2,$f0
-/*    173a4:	46062281 */ 	sub.s	$f10,$f4,$f6
-/*    173a8:	46005202 */ 	mul.s	$f8,$f10,$f0
-/*    173ac:	e4a80000 */ 	swc1	$f8,0x0($a1)
-/*    173b0:	c4840018 */ 	lwc1	$f4,0x18($a0)
-/*    173b4:	c4860020 */ 	lwc1	$f6,0x20($a0)
-/*    173b8:	c4880028 */ 	lwc1	$f8,0x28($a0)
-/*    173bc:	46062282 */ 	mul.s	$f10,$f4,$f6
-/*    173c0:	c4840010 */ 	lwc1	$f4,0x10($a0)
-/*    173c4:	46044182 */ 	mul.s	$f6,$f8,$f4
-/*    173c8:	46065201 */ 	sub.s	$f8,$f10,$f6
-/*    173cc:	46004102 */ 	mul.s	$f4,$f8,$f0
-/*    173d0:	e4a40010 */ 	swc1	$f4,0x10($a1)
-/*    173d4:	c48a0010 */ 	lwc1	$f10,0x10($a0)
-/*    173d8:	c4860024 */ 	lwc1	$f6,0x24($a0)
-/*    173dc:	c4840020 */ 	lwc1	$f4,0x20($a0)
-/*    173e0:	46065202 */ 	mul.s	$f8,$f10,$f6
-/*    173e4:	c48a0014 */ 	lwc1	$f10,0x14($a0)
-/*    173e8:	460a2182 */ 	mul.s	$f6,$f4,$f10
-/*    173ec:	46064101 */ 	sub.s	$f4,$f8,$f6
-/*    173f0:	46002282 */ 	mul.s	$f10,$f4,$f0
-/*    173f4:	e4aa0020 */ 	swc1	$f10,0x20($a1)
-/*    173f8:	c4880008 */ 	lwc1	$f8,0x8($a0)
-/*    173fc:	c4860024 */ 	lwc1	$f6,0x24($a0)
-/*    17400:	c48a0028 */ 	lwc1	$f10,0x28($a0)
-/*    17404:	46064102 */ 	mul.s	$f4,$f8,$f6
-/*    17408:	c4880004 */ 	lwc1	$f8,0x4($a0)
-/*    1740c:	46085182 */ 	mul.s	$f6,$f10,$f8
-/*    17410:	46062281 */ 	sub.s	$f10,$f4,$f6
-/*    17414:	46005202 */ 	mul.s	$f8,$f10,$f0
-/*    17418:	e4a80004 */ 	swc1	$f8,0x4($a1)
-/*    1741c:	c4840000 */ 	lwc1	$f4,0x0($a0)
-/*    17420:	c4860028 */ 	lwc1	$f6,0x28($a0)
-/*    17424:	c4880020 */ 	lwc1	$f8,0x20($a0)
-/*    17428:	46062282 */ 	mul.s	$f10,$f4,$f6
-/*    1742c:	c4840008 */ 	lwc1	$f4,0x8($a0)
-/*    17430:	46044182 */ 	mul.s	$f6,$f8,$f4
-/*    17434:	46065201 */ 	sub.s	$f8,$f10,$f6
-/*    17438:	46004102 */ 	mul.s	$f4,$f8,$f0
-/*    1743c:	e4a40014 */ 	swc1	$f4,0x14($a1)
-/*    17440:	c48a0004 */ 	lwc1	$f10,0x4($a0)
-/*    17444:	c4860020 */ 	lwc1	$f6,0x20($a0)
-/*    17448:	c4840024 */ 	lwc1	$f4,0x24($a0)
-/*    1744c:	46065202 */ 	mul.s	$f8,$f10,$f6
-/*    17450:	c48a0000 */ 	lwc1	$f10,0x0($a0)
-/*    17454:	460a2182 */ 	mul.s	$f6,$f4,$f10
-/*    17458:	46064101 */ 	sub.s	$f4,$f8,$f6
-/*    1745c:	46002282 */ 	mul.s	$f10,$f4,$f0
-/*    17460:	e4aa0024 */ 	swc1	$f10,0x24($a1)
-/*    17464:	c4880004 */ 	lwc1	$f8,0x4($a0)
-/*    17468:	c4860018 */ 	lwc1	$f6,0x18($a0)
-/*    1746c:	c48a0014 */ 	lwc1	$f10,0x14($a0)
-/*    17470:	46064102 */ 	mul.s	$f4,$f8,$f6
-/*    17474:	c4880008 */ 	lwc1	$f8,0x8($a0)
-/*    17478:	46085182 */ 	mul.s	$f6,$f10,$f8
-/*    1747c:	46062281 */ 	sub.s	$f10,$f4,$f6
-/*    17480:	46005202 */ 	mul.s	$f8,$f10,$f0
-/*    17484:	e4a80008 */ 	swc1	$f8,0x8($a1)
-/*    17488:	c4860010 */ 	lwc1	$f6,0x10($a0)
-/*    1748c:	c4840008 */ 	lwc1	$f4,0x8($a0)
-/*    17490:	c4880018 */ 	lwc1	$f8,0x18($a0)
-/*    17494:	46062282 */ 	mul.s	$f10,$f4,$f6
-/*    17498:	c4840000 */ 	lwc1	$f4,0x0($a0)
-/*    1749c:	46044182 */ 	mul.s	$f6,$f8,$f4
-/*    174a0:	46065201 */ 	sub.s	$f8,$f10,$f6
-/*    174a4:	46004102 */ 	mul.s	$f4,$f8,$f0
-/*    174a8:	e4a40018 */ 	swc1	$f4,0x18($a1)
-/*    174ac:	c4860014 */ 	lwc1	$f6,0x14($a0)
-/*    174b0:	c48a0000 */ 	lwc1	$f10,0x0($a0)
-/*    174b4:	c4840010 */ 	lwc1	$f4,0x10($a0)
-/*    174b8:	46065202 */ 	mul.s	$f8,$f10,$f6
-/*    174bc:	c48a0004 */ 	lwc1	$f10,0x4($a0)
-/*    174c0:	460a2182 */ 	mul.s	$f6,$f4,$f10
-/*    174c4:	46064101 */ 	sub.s	$f4,$f8,$f6
-/*    174c8:	c4a60000 */ 	lwc1	$f6,0x0($a1)
-/*    174cc:	46002282 */ 	mul.s	$f10,$f4,$f0
-/*    174d0:	44800000 */ 	mtc1	$zero,$f0
-/*    174d4:	e4aa0028 */ 	swc1	$f10,0x28($a1)
-/*    174d8:	c4880030 */ 	lwc1	$f8,0x30($a0)
-/*    174dc:	c48a0034 */ 	lwc1	$f10,0x34($a0)
-/*    174e0:	46064102 */ 	mul.s	$f4,$f8,$f6
-/*    174e4:	c4a80010 */ 	lwc1	$f8,0x10($a1)
-/*    174e8:	46085182 */ 	mul.s	$f6,$f10,$f8
-/*    174ec:	c4a80020 */ 	lwc1	$f8,0x20($a1)
-/*    174f0:	46062280 */ 	add.s	$f10,$f4,$f6
-/*    174f4:	c4840038 */ 	lwc1	$f4,0x38($a0)
-/*    174f8:	46044182 */ 	mul.s	$f6,$f8,$f4
-/*    174fc:	460a3200 */ 	add.s	$f8,$f6,$f10
-/*    17500:	c4aa0004 */ 	lwc1	$f10,0x4($a1)
-/*    17504:	46004107 */ 	neg.s	$f4,$f8
-/*    17508:	e4a40030 */ 	swc1	$f4,0x30($a1)
-/*    1750c:	c4860030 */ 	lwc1	$f6,0x30($a0)
-/*    17510:	c4840034 */ 	lwc1	$f4,0x34($a0)
-/*    17514:	460a3202 */ 	mul.s	$f8,$f6,$f10
-/*    17518:	c4a60014 */ 	lwc1	$f6,0x14($a1)
-/*    1751c:	46062282 */ 	mul.s	$f10,$f4,$f6
-/*    17520:	c4a60024 */ 	lwc1	$f6,0x24($a1)
-/*    17524:	460a4100 */ 	add.s	$f4,$f8,$f10
-/*    17528:	c4880038 */ 	lwc1	$f8,0x38($a0)
-/*    1752c:	46083282 */ 	mul.s	$f10,$f6,$f8
-/*    17530:	46045180 */ 	add.s	$f6,$f10,$f4
-/*    17534:	c4a40008 */ 	lwc1	$f4,0x8($a1)
-/*    17538:	46003207 */ 	neg.s	$f8,$f6
-/*    1753c:	e4a80034 */ 	swc1	$f8,0x34($a1)
-/*    17540:	c48a0030 */ 	lwc1	$f10,0x30($a0)
-/*    17544:	c4880034 */ 	lwc1	$f8,0x34($a0)
-/*    17548:	46045182 */ 	mul.s	$f6,$f10,$f4
-/*    1754c:	c4aa0018 */ 	lwc1	$f10,0x18($a1)
-/*    17550:	460a4102 */ 	mul.s	$f4,$f8,$f10
-/*    17554:	c4aa0028 */ 	lwc1	$f10,0x28($a1)
-/*    17558:	46043200 */ 	add.s	$f8,$f6,$f4
-/*    1755c:	c4860038 */ 	lwc1	$f6,0x38($a0)
-/*    17560:	27bd0030 */ 	addiu	$sp,$sp,0x30
-/*    17564:	e4a2003c */ 	swc1	$f2,0x3c($a1)
-/*    17568:	46065102 */ 	mul.s	$f4,$f10,$f6
-/*    1756c:	e4a0000c */ 	swc1	$f0,0xc($a1)
-/*    17570:	e4a0001c */ 	swc1	$f0,0x1c($a1)
-/*    17574:	e4a0002c */ 	swc1	$f0,0x2c($a1)
-/*    17578:	46082280 */ 	add.s	$f10,$f4,$f8
-/*    1757c:	46005187 */ 	neg.s	$f6,$f10
-/*    17580:	03e00008 */ 	jr	$ra
-/*    17584:	e4a60038 */ 	swc1	$f6,0x38($a1)
-);
+void mtx000172f0(f32 arg0[4][4], f32 arg1[4][4])
+{
+	f32 f0 = 0.0f;
+	f0 += arg0[0][0] * arg0[1][1] * arg0[2][2];
+	f0 += arg0[0][1] * arg0[1][2] * arg0[2][0];
+	f0 += arg0[0][2] * arg0[1][0] * arg0[2][1];
+	f0 -= arg0[0][2] * arg0[1][1] * arg0[2][0];
+	f0 -= arg0[0][1] * arg0[1][0] * arg0[2][2];
+	f0 -= arg0[0][0] * arg0[1][2] * arg0[2][1];
+	f0 = 1.0f / f0;
+
+	arg1[0][0] = (arg0[1][1] * arg0[2][2] - arg0[1][2] * arg0[2][1]) * f0;
+	arg1[1][0] = (arg0[1][2] * arg0[2][0] - arg0[1][0] * arg0[2][2]) * f0;
+	arg1[2][0] = (arg0[1][0] * arg0[2][1] - arg0[1][1] * arg0[2][0]) * f0;
+	arg1[0][1] = (arg0[0][2] * arg0[2][1] - arg0[0][1] * arg0[2][2]) * f0;
+	arg1[1][1] = (arg0[0][0] * arg0[2][2] - arg0[0][2] * arg0[2][0]) * f0;
+	arg1[2][1] = (arg0[0][1] * arg0[2][0] - arg0[0][0] * arg0[2][1]) * f0;
+	arg1[0][2] = (arg0[0][1] * arg0[1][2] - arg0[0][2] * arg0[1][1]) * f0;
+	arg1[1][2] = (arg0[0][2] * arg0[1][0] - arg0[0][0] * arg0[1][2]) * f0;
+	arg1[2][2] = (arg0[0][0] * arg0[1][1] - arg0[0][1] * arg0[1][0]) * f0;
+	arg1[3][0] = -(arg0[3][0] * arg1[0][0] + arg0[3][1] * arg1[1][0] + arg0[3][2] * arg1[2][0]);
+	arg1[3][1] = -(arg0[3][0] * arg1[0][1] + arg0[3][1] * arg1[1][1] + arg0[3][2] * arg1[2][1]);
+	arg1[3][2] = -(arg0[3][0] * arg1[0][2] + arg0[3][1] * arg1[1][2] + arg0[3][2] * arg1[2][2]);
+	arg1[0][3] = 0.0f;
+	arg1[1][3] = 0.0f;
+	arg1[2][3] = 0.0f;
+	arg1[3][3] = 1.0f;
+}
 
 void mtx00017588(f32 arg0[4][4], f32 arg1[4][4])
 {