1 files changed, 65 insertions, 0 deletions
diff --git a/arm9/asm/MSL_DPMath_s_frexp.s b/arm9/asm/MSL_DPMath_s_frexp.s
new file mode 100644
index 00000000..b0c22aac
--- /dev/null
+++ b/arm9/asm/MSL_DPMath_s_frexp.s
@@ -0,0 +1,65 @@
+	.include "asm/macros.inc"
+	.include "global.inc"
+
+	.text
+
+	arm_func_start frexp
+frexp: ; 0x020E825C
+	stmdb sp!, {r0-r3}
+	stmdb sp!, {r4,lr}
+	ldr r1, [sp, #0xc]
+	ldr r0, _020E8308 ; =0x7FF00000
+	mov r4, r2
+	bic r3, r1, #0x80000000
+	mov r2, #0x0
+	str r2, [r4, #0x0]
+	cmp r3, r0
+	ldr r0, [sp, #0x8]
+	bge _020E8290
+	orrs r0, r3, r0
+	bne _020E82A4
+_020E8290:
+	ldr r0, [sp, #0x8]
+	ldr r1, [sp, #0xc]
+	ldmia sp!, {r4,lr}
+	add sp, sp, #0x10
+	bx lr
+_020E82A4:
+	cmp r3, #0x100000
+	bge _020E82D0
+	ldr r0, [sp, #0x8]
+	ldr r1, [sp, #0xc]
+	ldr r3, _020E830C ; =0x43500000
+	bl _dmul
+	mvn r2, #0x35
+	str r0, [sp, #0x8]
+	str r1, [sp, #0xc]
+	str r2, [r4, #0x0]
+	bic r3, r1, #0x80000000
+_020E82D0:
+	ldr r2, _020E8310 ; =0x800FFFFF
+	ldr r0, _020E8314 ; =0xFFFFFC02
+	and r1, r1, r2
+	orr r1, r1, #0xfe00000
+	orr r1, r1, #0x30000000
+	ldr r2, [r4, #0x0]
+	add r0, r0, r3, asr #0x14
+	add r2, r2, r0
+	ldr r0, [sp, #0x8]
+	str r2, [r4, #0x0]
+	str r1, [sp, #0xc]
+	ldmia sp!, {r4,lr}
+	add sp, sp, #0x10
+	bx lr
+	.balign 4
+_020E8308: .word 0x7FF00000
+_020E830C: .word 0x43500000
+_020E8310: .word 0x800FFFFF
+_020E8314: .word 0xFFFFFC02
+	arm_func_end frexp
+
+	.section .exceptix,4
+
+	.word frexp
+	.short 189
+	.word 0x00300120