first commit

1 files changed, 97 insertions, 0 deletions

diff --git a/asm/trig.s b/asm/trig.s
new file mode 100644
index 000000000..386cbe4ca
--- /dev/null
+++ b/asm/trig.s
@@ -0,0 +1,97 @@
+	.include "asm/macros.inc"
+	.include "constants/constants.inc"
+
+	.syntax unified
+
+	.text
+
+	thumb_func_start sub_8044E30
+sub_8044E30: @ 8044E30
+	lsls r1, 16
+	asrs r1, 16
+	ldr r2, _08044E48 @ =gUnknown_825E074
+	lsls r0, 16
+	asrs r0, 15
+	adds r0, r2
+	movs r2, 0
+	ldrsh r0, [r0, r2]
+	muls r0, r1
+	lsls r0, 8
+	asrs r0, 16
+	bx lr
+	.align 2, 0
+_08044E48: .4byte gUnknown_825E074
+	thumb_func_end sub_8044E30
+
+	thumb_func_start sub_8044E4C
+sub_8044E4C: @ 8044E4C
+	lsls r1, 16
+	asrs r1, 16
+	ldr r2, _08044E68 @ =gUnknown_825E074
+	lsls r0, 16
+	asrs r0, 15
+	adds r0, 0x80
+	adds r0, r2
+	movs r2, 0
+	ldrsh r0, [r0, r2]
+	muls r0, r1
+	lsls r0, 8
+	asrs r0, 16
+	bx lr
+	.align 2, 0
+_08044E68: .4byte gUnknown_825E074
+	thumb_func_end sub_8044E4C
+
+	thumb_func_start sub_8044E6C
+sub_8044E6C: @ 8044E6C
+	push {r4,r5,lr}
+	adds r5, r0, 0
+	lsls r5, 16
+	lsrs r5, 16
+	adds r0, r5, 0
+	movs r1, 0xB4
+	bl __umodsi3
+	adds r4, r0, 0
+	lsls r4, 16
+	lsrs r4, 16
+	adds r0, r5, 0
+	movs r1, 0xB4
+	bl __udivsi3
+	movs r1, 0x1
+	ands r0, r1
+	ldr r1, _08044EA0 @ =gUnknown_825E2F4
+	lsls r4, 1
+	adds r4, r1
+	ldrh r1, [r4]
+	cmp r0, 0
+	bne _08044EA4
+	lsls r0, r1, 16
+	b _08044EA8
+	.align 2, 0
+_08044EA0: .4byte gUnknown_825E2F4
+_08044EA4:
+	lsls r0, r1, 16
+	negs r0, r0
+_08044EA8:
+	asrs r0, 16
+	pop {r4,r5}
+	pop {r1}
+	bx r1
+	thumb_func_end sub_8044E6C
+
+	thumb_func_start sub_8044EB0
+sub_8044EB0: @ 8044EB0
+	push {lr}
+	lsls r0, 16
+	movs r1, 0xB4
+	lsls r1, 15
+	adds r0, r1
+	lsrs r0, 16
+	bl sub_8044E6C
+	lsls r0, 16
+	asrs r0, 16
+	pop {r1}
+	bx r1
+	thumb_func_end sub_8044EB0
+
+	.align 2, 0 @ Don't pad with nop.