Initial commit

1 files changed, 1152 insertions, 0 deletions

diff --git a/asm/librtc.s b/asm/librtc.s
new file mode 100644
index 000000000..80387ce2f
--- /dev/null
+++ b/asm/librtc.s
@@ -0,0 +1,1152 @@
+	thumb_func_start RTC_SetReadWrite
+; void RTC_SetReadWrite()
+RTC_SetReadWrite: ; 81DFF18
+	push {r7,lr}
+	mov r7, sp
+	bl RTC_SetReadWriteInternal
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	pop {r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RTC_SetReadWrite
+
+	thumb_func_start RTC_SetReadOnly
+; void RTC_SetReadOnly()
+RTC_SetReadOnly: ; 81DFF30
+	push {r7,lr}
+	mov r7, sp
+	bl RTC_SetReadOnlyInternal
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	pop {r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RTC_SetReadOnly
+
+	thumb_func_start RTC_Init
+; u8 RTC_Init()
+RTC_Init: ; 81DFF48
+	push {r7,lr}
+	sub sp, 0x10
+	mov r7, sp
+	adds r1, r7, 0x4
+	adds r0, r1, 0
+	bl RTC_GetControlReg
+	lsls r1, r0, 24
+	lsrs r0, r1, 24
+	cmp r0, 0
+	bne _081DFF62
+	movs r0, 0
+	b _081E0016
+_081DFF62:
+	adds r0, r7, 0
+	movs r1, 0
+	strb r1, [r0]
+	adds r0, r7, 0x4
+	ldrb r1, [r0, 0x7]
+	movs r2, 0xC0
+	adds r0, r1, 0
+	ands r0, r2
+	adds r2, r0, 0
+	lsls r1, r2, 24
+	lsrs r0, r1, 24
+	cmp r0, 0x80
+	beq _081DFF92
+	adds r0, r7, 0x4
+	ldrb r1, [r0, 0x7]
+	movs r2, 0xC0
+	adds r0, r1, 0
+	ands r0, r2
+	adds r2, r0, 0
+	lsls r1, r2, 24
+	lsrs r0, r1, 24
+	cmp r0, 0
+	bne _081DFFB0
+	b _081DFF92
+_081DFF92:
+	bl RTC_Reset
+	lsls r1, r0, 24
+	lsrs r0, r1, 24
+	cmp r0, 0
+	bne _081DFFA2
+	movs r0, 0
+	b _081E0016
+_081DFFA2:
+	adds r1, r7, 0
+	adds r0, r7, 0
+	adds r1, r7, 0
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+_081DFFB0:
+	adds r1, r7, 0x4
+	adds r0, r1, 0
+	bl RTC_GetTime
+	adds r0, r7, 0x4
+	ldrb r1, [r0, 0x6]
+	movs r2, 0x80
+	adds r0, r1, 0
+	ands r0, r2
+	adds r2, r0, 0
+	lsls r1, r2, 24
+	lsrs r0, r1, 24
+	cmp r0, 0
+	beq _081DFFFE
+	bl RTC_Reset
+	lsls r1, r0, 24
+	lsrs r0, r1, 24
+	cmp r0, 0
+	bne _081DFFF0
+	adds r0, r7, 0
+	ldrb r1, [r0]
+	lsls r0, r1, 4
+	adds r1, r0, 0
+	movs r2, 0xF
+	adds r0, r1, 0
+	bics r0, r2
+	adds r1, r0, 0
+	lsls r0, r1, 24
+	lsrs r1, r0, 24
+	adds r0, r1, 0
+	b _081E0016
+_081DFFF0:
+	adds r1, r7, 0
+	adds r0, r7, 0
+	adds r1, r7, 0
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+_081DFFFE:
+	adds r0, r7, 0
+	ldrb r1, [r0]
+	lsls r0, r1, 4
+	adds r1, r0, 0
+	movs r2, 0x1
+	adds r0, r1, 0
+	orrs r0, r2
+	adds r1, r0, 0
+	lsls r0, r1, 24
+	lsrs r1, r0, 24
+	adds r0, r1, 0
+	b _081E0016
+_081E0016:
+	add sp, 0x10
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_Init
+
+	thumb_func_start RTC_Reset
+; u8 RTC_Reset()
+RTC_Reset: ; 81E0020
+	push {r7,lr}
+	sub sp, 0x10
+	mov r7, sp
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E0038
+	movs r0, 0
+	b _081E009C
+	.pool
+_081E0038:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x60
+	bl RTC_WriteByte
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	adds r0, r7, 0x4
+	ldrb r1, [r0, 0x7]
+	movs r2, 0
+	ands r1, r2
+	adds r2, r1, 0
+	movs r3, 0x40
+	adds r1, r2, 0
+	orrs r1, r3
+	adds r2, r1, 0
+	strb r2, [r0, 0x7]
+	adds r1, r7, 0x4
+	adds r0, r1, 0
+	bl RTC_SetControlReg
+	adds r1, r7, 0
+	strb r0, [r1]
+	adds r0, r7, 0
+	ldrb r1, [r0]
+	adds r0, r1, 0
+	b _081E009C
+	.pool
+_081E009C:
+	add sp, 0x10
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_Reset
+
+	thumb_func_start RTC_GetControlReg
+; u8 RTC_GetControlReg(struct RTCInfo *rtc)
+RTC_GetControlReg: ; 81E00A4
+	push {r4,r7,lr}
+	sub sp, 0x8
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E00BC
+	movs r0, 0
+	b _081E0168
+	.pool
+_081E00BC:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x63
+	bl RTC_WriteByte
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x5
+	strh r1, [r0]
+	bl RTC_ReadByte
+	adds r1, r7, 0x4
+	strb r0, [r1]
+	ldr r0, [r7]
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	movs r3, 0xC0
+	adds r1, r2, 0
+	ands r1, r3
+	adds r2, r7, 0x4
+	ldrb r3, [r2]
+	movs r4, 0x20
+	adds r2, r3, 0
+	ands r2, r4
+	adds r4, r2, 0
+	lsls r3, r4, 24
+	lsrs r2, r3, 24
+	lsrs r3, r2, 3
+	adds r2, r3, 0
+	orrs r1, r2
+	adds r2, r7, 0x4
+	ldrb r3, [r2]
+	movs r4, 0x8
+	adds r2, r3, 0
+	ands r2, r4
+	adds r4, r2, 0
+	lsls r3, r4, 24
+	lsrs r2, r3, 24
+	lsrs r3, r2, 2
+	adds r2, r3, 0
+	orrs r1, r2
+	adds r2, r7, 0x4
+	ldrb r3, [r2]
+	movs r4, 0x2
+	adds r2, r3, 0
+	ands r2, r4
+	adds r4, r2, 0
+	lsls r3, r4, 24
+	lsrs r2, r3, 24
+	lsrs r3, r2, 1
+	adds r2, r3, 0
+	orrs r1, r2
+	ldrb r2, [r0, 0x7]
+	movs r3, 0
+	ands r2, r3
+	adds r3, r2, 0
+	adds r2, r3, 0
+	orrs r2, r1
+	adds r1, r2, 0
+	strb r1, [r0, 0x7]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E0168
+	.pool
+_081E0168:
+	add sp, 0x8
+	pop {r4,r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_GetControlReg
+
+	thumb_func_start RTC_SetControlReg
+; u8 RTC_SetControlReg(struct RTCInfo *rtc)
+RTC_SetControlReg: ; 81E0170
+	push {r4,r7,lr}
+	sub sp, 0x8
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E0188
+	movs r0, 0
+	b _081E0210
+	.pool
+_081E0188:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	adds r0, r7, 0x4
+	ldr r1, [r7]
+	ldrb r2, [r1, 0x7]
+	movs r3, 0x4
+	adds r1, r2, 0
+	ands r1, r3
+	adds r2, r1, 0
+	lsls r1, r2, 3
+	ldr r2, [r7]
+	ldrb r3, [r2, 0x7]
+	movs r4, 0x2
+	adds r2, r3, 0
+	ands r2, r4
+	adds r3, r2, 0
+	lsls r2, r3, 2
+	adds r3, r2, 0
+	movs r4, 0x40
+	adds r2, r3, 0
+	orrs r2, r4
+	orrs r1, r2
+	ldr r2, [r7]
+	ldrb r3, [r2, 0x7]
+	movs r4, 0x1
+	adds r2, r3, 0
+	ands r2, r4
+	adds r3, r2, 0
+	lsls r2, r3, 1
+	orrs r1, r2
+	adds r2, r1, 0
+	strb r2, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x62
+	bl RTC_WriteByte
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	adds r0, r1, 0
+	bl RTC_WriteByteReversed
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E0210
+	.pool
+_081E0210:
+	add sp, 0x8
+	pop {r4,r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_SetControlReg
+
+	thumb_func_start RTC_GetDateTime
+; u8 RTC_GetDateTime(u8 *rtcDateTime)
+RTC_GetDateTime: ; 81E0218
+	push {r7,lr}
+	sub sp, 0x8
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E0230
+	movs r0, 0
+	b _081E02C0
+	.pool
+_081E0230:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x65
+	bl RTC_WriteByte
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x5
+	strh r1, [r0]
+	adds r0, r7, 0x4
+	movs r1, 0
+	strb r1, [r0]
+_081E025A:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	cmp r1, 0x6
+	bls _081E0270
+	b _081E028E
+	.pool
+_081E0270:
+	bl RTC_ReadByte
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	ldr r3, [r7]
+	adds r1, r2, r3
+	strb r0, [r1]
+	adds r1, r7, 0x4
+	adds r0, r7, 0x4
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+	b _081E025A
+_081E028E:
+	ldr r1, [r7]
+	adds r0, r1, 0x4
+	ldr r2, [r7]
+	adds r1, r2, 0x4
+	ldrb r2, [r1]
+	movs r3, 0x7F
+	adds r1, r2, 0
+	ands r1, r3
+	adds r2, r1, 0
+	strb r2, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E02C0
+	.pool
+_081E02C0:
+	add sp, 0x8
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_GetDateTime
+
+	thumb_func_start RTC_SetDateTime
+; u8 RTC_SetDateTime(u8 *rtcDateTime)
+RTC_SetDateTime: ; 81E02C8
+	push {r7,lr}
+	sub sp, 0x8
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E02E0
+	movs r0, 0
+	b _081E035C
+	.pool
+_081E02E0:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x64
+	bl RTC_WriteByte
+	adds r0, r7, 0x4
+	movs r1, 0
+	strb r1, [r0]
+_081E0304:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	cmp r1, 0x6
+	bls _081E031C
+	b _081E033C
+	.pool
+_081E031C:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	ldr r2, [r7]
+	adds r0, r1, r2
+	ldrb r1, [r0]
+	adds r0, r1, 0
+	bl RTC_WriteByteReversed
+	adds r1, r7, 0x4
+	adds r0, r7, 0x4
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+	b _081E0304
+_081E033C:
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E035C
+	.pool
+_081E035C:
+	add sp, 0x8
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_SetDateTime
+
+	thumb_func_start RTC_GetTime
+; u8 RTC_GetTime(u8 *rtcTime)
+RTC_GetTime: ; 81E0364
+	push {r7,lr}
+	sub sp, 0x8
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E037C
+	movs r0, 0
+	b _081E0410
+	.pool
+_081E037C:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x67
+	bl RTC_WriteByte
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x5
+	strh r1, [r0]
+	adds r0, r7, 0x4
+	movs r1, 0
+	strb r1, [r0]
+_081E03A6:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	cmp r1, 0x2
+	bls _081E03BC
+	b _081E03DC
+	.pool
+_081E03BC:
+	bl RTC_ReadByte
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	ldr r3, [r7]
+	adds r1, r2, r3
+	adds r2, r1, 0x4
+	strb r0, [r2]
+	adds r1, r7, 0x4
+	adds r0, r7, 0x4
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+	b _081E03A6
+_081E03DC:
+	ldr r1, [r7]
+	adds r0, r1, 0x4
+	ldr r2, [r7]
+	adds r1, r2, 0x4
+	ldrb r2, [r1]
+	movs r3, 0x7F
+	adds r1, r2, 0
+	ands r1, r3
+	adds r2, r1, 0
+	strb r2, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E0410
+	.pool
+_081E0410:
+	add sp, 0x8
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_GetTime
+
+	thumb_func_start RTC_SetTime
+; u8 RTC_SetTime(u8 *rtcTime)
+RTC_SetTime: ; 81E0418
+	push {r7,lr}
+	sub sp, 0x8
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E0430
+	movs r0, 0
+	b _081E04AC
+	.pool
+_081E0430:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x66
+	bl RTC_WriteByte
+	adds r0, r7, 0x4
+	movs r1, 0
+	strb r1, [r0]
+_081E0454:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	cmp r1, 0x2
+	bls _081E046C
+	b _081E048E
+	.pool
+_081E046C:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	ldr r2, [r7]
+	adds r0, r1, r2
+	adds r1, r0, 0x4
+	ldrb r2, [r1]
+	adds r0, r2, 0
+	bl RTC_WriteByteReversed
+	adds r1, r7, 0x4
+	adds r0, r7, 0x4
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+	b _081E0454
+_081E048E:
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E04AC
+	.pool
+_081E04AC:
+	add sp, 0x8
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_SetTime
+
+	thumb_func_start RTC_SetUnknownData
+; u8 RTC_SetUnknownData(struct RTCInfo *rtc)
+RTC_SetUnknownData: ; 81E04B4
+	push {r4,r7,lr}
+	sub sp, 0xC
+	mov r7, sp
+	str r0, [r7]
+	ldr r0, =0x03000F36
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bne _081E04CC
+	movs r0, 0
+	b _081E05E0
+	.pool
+_081E04CC:
+	ldr r0, =0x03000F36
+	movs r1, 0x1
+	strb r1, [r0]
+	adds r0, r7, 0
+	adds r0, 0x8
+	ldr r1, [r7]
+	ldrb r2, [r1, 0x8]
+	movs r3, 0xF
+	adds r1, r2, 0
+	ands r1, r3
+	ldr r2, [r7]
+	ldrb r3, [r2, 0x8]
+	lsrs r2, r3, 4
+	adds r3, r2, 0
+	movs r4, 0xF
+	adds r2, r3, 0
+	ands r2, r4
+	adds r4, r2, 0
+	lsls r3, r4, 24
+	lsrs r2, r3, 24
+	adds r4, r2, 0
+	lsls r3, r4, 2
+	adds r3, r2
+	lsls r2, r3, 1
+	adds r1, r2
+	ldrb r2, [r0]
+	movs r3, 0
+	ands r2, r3
+	adds r3, r2, 0
+	adds r2, r3, 0
+	orrs r2, r1
+	adds r1, r2, 0
+	strb r1, [r0]
+	adds r0, r7, 0
+	adds r0, 0x8
+	ldrb r1, [r0]
+	cmp r1, 0xB
+	bhi _081E0538
+	adds r0, r7, 0
+	adds r0, 0x8
+	ldr r1, [r7]
+	ldrb r2, [r0]
+	movs r3, 0
+	ands r2, r3
+	adds r3, r2, 0
+	ldrb r1, [r1, 0x8]
+	adds r2, r3, 0
+	orrs r2, r1
+	adds r1, r2, 0
+	strb r1, [r0]
+	b _081E0556
+	.pool
+_081E0538:
+	adds r0, r7, 0
+	adds r0, 0x8
+	ldr r1, [r7]
+	ldrb r2, [r1, 0x8]
+	movs r3, 0x80
+	adds r1, r2, 0
+	orrs r1, r3
+	ldrb r2, [r0]
+	movs r3, 0
+	ands r2, r3
+	adds r3, r2, 0
+	adds r2, r3, 0
+	orrs r2, r1
+	adds r1, r2, 0
+	strb r1, [r0]
+_081E0556:
+	adds r0, r7, 0
+	adds r0, 0x8
+	ldr r1, [r7]
+	ldrb r2, [r0, 0x1]
+	movs r3, 0
+	ands r2, r3
+	adds r3, r2, 0
+	ldrb r1, [r1, 0x9]
+	adds r2, r3, 0
+	orrs r2, r1
+	adds r1, r2, 0
+	strb r1, [r0, 0x1]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	ldr r0, =GPIOPortDirection
+	movs r1, 0x7
+	strh r1, [r0]
+	movs r0, 0x68
+	bl RTC_WriteByte
+	adds r0, r7, 0x4
+	movs r1, 0
+	strb r1, [r0]
+_081E058C:
+	adds r0, r7, 0x4
+	ldrb r1, [r0]
+	cmp r1, 0x1
+	bls _081E05A0
+	b _081E05C2
+	.pool
+_081E05A0:
+	adds r0, r7, 0
+	adds r0, 0x8
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	adds r0, r2
+	ldrb r1, [r0]
+	adds r0, r1, 0
+	bl RTC_WriteByteReversed
+	adds r1, r7, 0x4
+	adds r0, r7, 0x4
+	adds r1, r7, 0x4
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+	b _081E058C
+_081E05C2:
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x1
+	strh r1, [r0]
+	ldr r0, =0x03000F36
+	movs r1, 0
+	strb r1, [r0]
+	movs r0, 0x1
+	b _081E05E0
+	.pool
+_081E05E0:
+	add sp, 0xC
+	pop {r4,r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_SetUnknownData
+
+	thumb_func_start RTC_WriteByte
+; u8 RTC_WriteByte(u8 value)
+RTC_WriteByte: ; 81E05E8
+	push {r4,r5,r7,lr}
+	sub sp, 0x4
+	mov r7, sp
+	adds r1, r0, 0
+	adds r2, r7, 0
+	strb r1, [r2]
+	adds r1, r7, 0x1
+	movs r2, 0
+	strb r2, [r1]
+_081E05FA:
+	adds r1, r7, 0x1
+	ldrb r2, [r1]
+	cmp r2, 0x7
+	bls _081E0604
+	b _081E0684
+_081E0604:
+	adds r1, r7, 0x2
+	adds r3, r7, 0
+	ldrb r2, [r3]
+	adds r3, r7, 0x1
+	ldrb r4, [r3]
+	movs r5, 0x7
+	subs r3, r5, r4
+	asrs r2, r3
+	adds r3, r2, 0
+	movs r4, 0x1
+	adds r2, r3, 0
+	ands r2, r4
+	adds r3, r2, 0
+	strb r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x4
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x4
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x4
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x5
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	adds r2, r7, 0x1
+	adds r1, r7, 0x1
+	adds r2, r7, 0x1
+	ldrb r3, [r2]
+	adds r2, r3, 0x1
+	adds r3, r2, 0
+	strb r3, [r1]
+	b _081E05FA
+	.pool
+_081E0684:
+	add sp, 0x4
+	pop {r4,r5,r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_WriteByte
+
+	thumb_func_start RTC_WriteByteReversed
+; u8 RTC_WriteByteReversed(u8 value)
+RTC_WriteByteReversed: ; 81E068C
+	push {r4,r7,lr}
+	sub sp, 0x4
+	mov r7, sp
+	adds r1, r0, 0
+	adds r2, r7, 0
+	strb r1, [r2]
+	adds r1, r7, 0x1
+	movs r2, 0
+	strb r2, [r1]
+_081E069E:
+	adds r1, r7, 0x1
+	ldrb r2, [r1]
+	cmp r2, 0x7
+	bls _081E06A8
+	b _081E0724
+_081E06A8:
+	adds r1, r7, 0x2
+	adds r3, r7, 0
+	ldrb r2, [r3]
+	adds r3, r7, 0x1
+	ldrb r4, [r3]
+	asrs r2, r4
+	adds r3, r2, 0
+	movs r4, 0x1
+	adds r2, r3, 0
+	ands r2, r4
+	adds r3, r2, 0
+	strb r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x4
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x4
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x4
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	ldr r1, =GPIOPortData
+	adds r2, r7, 0x2
+	ldrb r3, [r2]
+	adds r2, r3, 0
+	lsls r3, r2, 1
+	adds r2, r3, 0
+	movs r3, 0x5
+	orrs r2, r3
+	adds r3, r2, 0
+	strh r3, [r1]
+	adds r2, r7, 0x1
+	adds r1, r7, 0x1
+	adds r2, r7, 0x1
+	ldrb r3, [r2]
+	adds r2, r3, 0x1
+	adds r3, r2, 0
+	strb r3, [r1]
+	b _081E069E
+	.pool
+_081E0724:
+	add sp, 0x4
+	pop {r4,r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_WriteByteReversed
+
+	thumb_func_start RTC_ReadByte
+; u8 RTC_ReadByte()
+RTC_ReadByte: ; 81E072C
+	push {r7,lr}
+	sub sp, 0x4
+	mov r7, sp
+	adds r0, r7, 0
+	movs r1, 0
+	strb r1, [r0]
+_081E0738:
+	adds r0, r7, 0
+	ldrb r1, [r0]
+	cmp r1, 0x7
+	bls _081E0742
+	b _081E07A8
+_081E0742:
+	ldr r0, =GPIOPortData
+	movs r1, 0x4
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x4
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x4
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x4
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x4
+	strh r1, [r0]
+	ldr r0, =GPIOPortData
+	movs r1, 0x5
+	strh r1, [r0]
+	adds r0, r7, 0x1
+	ldr r1, =GPIOPortData
+	ldrh r2, [r1]
+	movs r3, 0x2
+	adds r1, r2, 0
+	ands r1, r3
+	adds r3, r1, 0
+	lsls r2, r3, 16
+	lsrs r1, r2, 16
+	lsrs r2, r1, 1
+	adds r1, r2, 0
+	strb r1, [r0]
+	adds r0, r7, 0x2
+	adds r1, r7, 0x2
+	ldrb r2, [r1]
+	lsrs r1, r2, 1
+	adds r2, r7, 0x1
+	ldrb r3, [r2]
+	lsls r2, r3, 7
+	orrs r1, r2
+	adds r2, r1, 0
+	strb r2, [r0]
+	adds r1, r7, 0
+	adds r0, r7, 0
+	adds r1, r7, 0
+	ldrb r2, [r1]
+	adds r1, r2, 0x1
+	adds r2, r1, 0
+	strb r2, [r0]
+	b _081E0738
+	.pool
+_081E07A8:
+	adds r0, r7, 0x2
+	ldrb r1, [r0]
+	adds r0, r1, 0
+	b _081E07B0
+_081E07B0:
+	add sp, 0x4
+	pop {r7}
+	pop {r1}
+	bx r1
+	thumb_func_end RTC_ReadByte
+
+	thumb_func_start RTC_SetReadWriteInternal
+; void RTC_SetReadWriteInternal()
+RTC_SetReadWriteInternal: ; 81E07B8
+	push {r7,lr}
+	mov r7, sp
+	ldr r0, =GPIOPortReadWrite
+	movs r1, 0x1
+	strh r1, [r0]
+	pop {r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RTC_SetReadWriteInternal
+
+	thumb_func_start RTC_SetReadOnlyInternal
+; void RTC_SetReadOnlyInternal()
+RTC_SetReadOnlyInternal: ; 81E07CC
+	push {r7,lr}
+	mov r7, sp
+	ldr r0, =GPIOPortReadWrite
+	movs r1, 0
+	strh r1, [r0]
+	pop {r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RTC_SetReadOnlyInternal