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-rw-r--r--asm/librtc.s1160
-rw-r--r--asm/m4a_1.s30
-rw-r--r--asm/main.s2
-rw-r--r--asm/rtc.s10
-rw-r--r--include/siirtc.h54
-rw-r--r--ld_script.txt4
-rw-r--r--src/siirtc.c432
-rw-r--r--sym_bss.txt7
8 files changed, 510 insertions, 1189 deletions
diff --git a/asm/librtc.s b/asm/librtc.s
deleted file mode 100644
index 87ce5b415..000000000
--- a/asm/librtc.s
+++ /dev/null
@@ -1,1160 +0,0 @@
- .include "asm/macros.inc"
-
- .syntax unified
-
- .text
-
- thumb_func_start RTC_SetReadWrite
-@ void RTC_SetReadWrite()
-RTC_SetReadWrite: @ 82E2150
- push {r7,lr}
- mov r7, sp
- bl RTC_SetReadWriteInternal
- ldr r0, =gUnknown_03001A7E
- 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: @ 82E2168
- push {r7,lr}
- mov r7, sp
- bl RTC_SetReadOnlyInternal
- ldr r0, =gUnknown_03001A7E
- 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: @ 82E2180
- 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 _082E219A
- movs r0, 0
- b _082E224E
-_082E219A:
- 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 _082E21CA
- 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 _082E21E8
- b _082E21CA
-_082E21CA:
- bl RTC_Reset
- lsls r1, r0, 24
- lsrs r0, r1, 24
- cmp r0, 0
- bne _082E21DA
- movs r0, 0
- b _082E224E
-_082E21DA:
- 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]
-_082E21E8:
- 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 _082E2236
- bl RTC_Reset
- lsls r1, r0, 24
- lsrs r0, r1, 24
- cmp r0, 0
- bne _082E2228
- 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 _082E224E
-_082E2228:
- 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]
-_082E2236:
- 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 _082E224E
-_082E224E:
- add sp, 0x10
- pop {r7}
- pop {r1}
- bx r1
- thumb_func_end RTC_Init
-
- thumb_func_start RTC_Reset
-@ u8 RTC_Reset()
-RTC_Reset: @ 82E2258
- push {r7,lr}
- sub sp, 0x10
- mov r7, sp
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E2270
- movs r0, 0
- b _082E22D4
- .pool
-_082E2270:
- ldr r0, =gUnknown_03001A7E
- 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, =gUnknown_03001A7E
- 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 _082E22D4
- .pool
-_082E22D4:
- 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: @ 82E22DC
- push {r4,r7,lr}
- sub sp, 0x8
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E22F4
- movs r0, 0
- b _082E23A0
- .pool
-_082E22F4:
- ldr r0, =gUnknown_03001A7E
- 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, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E23A0
- .pool
-_082E23A0:
- 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: @ 82E23A8
- push {r4,r7,lr}
- sub sp, 0x8
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E23C0
- movs r0, 0
- b _082E2448
- .pool
-_082E23C0:
- ldr r0, =gUnknown_03001A7E
- 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, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E2448
- .pool
-_082E2448:
- 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: @ 82E2450
- push {r7,lr}
- sub sp, 0x8
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E2468
- movs r0, 0
- b _082E24F8
- .pool
-_082E2468:
- ldr r0, =gUnknown_03001A7E
- 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]
-_082E2492:
- adds r0, r7, 0x4
- ldrb r1, [r0]
- cmp r1, 0x6
- bls _082E24A8
- b _082E24C6
- .pool
-_082E24A8:
- 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 _082E2492
-_082E24C6:
- 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, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E24F8
- .pool
-_082E24F8:
- 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: @ 82E2500
- push {r7,lr}
- sub sp, 0x8
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E2518
- movs r0, 0
- b _082E2594
- .pool
-_082E2518:
- ldr r0, =gUnknown_03001A7E
- 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]
-_082E253C:
- adds r0, r7, 0x4
- ldrb r1, [r0]
- cmp r1, 0x6
- bls _082E2554
- b _082E2574
- .pool
-_082E2554:
- 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 _082E253C
-_082E2574:
- ldr r0, =GPIOPortData
- movs r1, 0x1
- strh r1, [r0]
- ldr r0, =GPIOPortData
- movs r1, 0x1
- strh r1, [r0]
- ldr r0, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E2594
- .pool
-_082E2594:
- 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: @ 82E259C
- push {r7,lr}
- sub sp, 0x8
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E25B4
- movs r0, 0
- b _082E2648
- .pool
-_082E25B4:
- ldr r0, =gUnknown_03001A7E
- 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]
-_082E25DE:
- adds r0, r7, 0x4
- ldrb r1, [r0]
- cmp r1, 0x2
- bls _082E25F4
- b _082E2614
- .pool
-_082E25F4:
- 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 _082E25DE
-_082E2614:
- 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, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E2648
- .pool
-_082E2648:
- 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: @ 82E2650
- push {r7,lr}
- sub sp, 0x8
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E2668
- movs r0, 0
- b _082E26E4
- .pool
-_082E2668:
- ldr r0, =gUnknown_03001A7E
- 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]
-_082E268C:
- adds r0, r7, 0x4
- ldrb r1, [r0]
- cmp r1, 0x2
- bls _082E26A4
- b _082E26C6
- .pool
-_082E26A4:
- 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 _082E268C
-_082E26C6:
- ldr r0, =GPIOPortData
- movs r1, 0x1
- strh r1, [r0]
- ldr r0, =GPIOPortData
- movs r1, 0x1
- strh r1, [r0]
- ldr r0, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E26E4
- .pool
-_082E26E4:
- 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: @ 82E26EC
- push {r4,r7,lr}
- sub sp, 0xC
- mov r7, sp
- str r0, [r7]
- ldr r0, =gUnknown_03001A7E
- ldrb r1, [r0]
- cmp r1, 0x1
- bne _082E2704
- movs r0, 0
- b _082E2818
- .pool
-_082E2704:
- ldr r0, =gUnknown_03001A7E
- 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 _082E2770
- 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 _082E278E
- .pool
-_082E2770:
- 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]
-_082E278E:
- 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]
-_082E27C4:
- adds r0, r7, 0x4
- ldrb r1, [r0]
- cmp r1, 0x1
- bls _082E27D8
- b _082E27FA
- .pool
-_082E27D8:
- 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 _082E27C4
-_082E27FA:
- ldr r0, =GPIOPortData
- movs r1, 0x1
- strh r1, [r0]
- ldr r0, =GPIOPortData
- movs r1, 0x1
- strh r1, [r0]
- ldr r0, =gUnknown_03001A7E
- movs r1, 0
- strb r1, [r0]
- movs r0, 0x1
- b _082E2818
- .pool
-_082E2818:
- 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: @ 82E2820
- 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]
-_082E2832:
- adds r1, r7, 0x1
- ldrb r2, [r1]
- cmp r2, 0x7
- bls _082E283C
- b _082E28BC
-_082E283C:
- 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 _082E2832
- .pool
-_082E28BC:
- 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: @ 82E28C4
- 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]
-_082E28D6:
- adds r1, r7, 0x1
- ldrb r2, [r1]
- cmp r2, 0x7
- bls _082E28E0
- b _082E295C
-_082E28E0:
- 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 _082E28D6
- .pool
-_082E295C:
- 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: @ 82E2964
- push {r7,lr}
- sub sp, 0x4
- mov r7, sp
- adds r0, r7, 0
- movs r1, 0
- strb r1, [r0]
-_082E2970:
- adds r0, r7, 0
- ldrb r1, [r0]
- cmp r1, 0x7
- bls _082E297A
- b _082E29E0
-_082E297A:
- 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 _082E2970
- .pool
-_082E29E0:
- adds r0, r7, 0x2
- ldrb r1, [r0]
- adds r0, r1, 0
- b _082E29E8
-_082E29E8:
- add sp, 0x4
- pop {r7}
- pop {r1}
- bx r1
- thumb_func_end RTC_ReadByte
-
- thumb_func_start RTC_SetReadWriteInternal
-@ void RTC_SetReadWriteInternal()
-RTC_SetReadWriteInternal: @ 82E29F0
- push {r7,lr}
- mov r7, sp
- ldr r0, =GPIOPortReadEnable
- 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: @ 82E2A04
- push {r7,lr}
- mov r7, sp
- ldr r0, =GPIOPortReadEnable
- movs r1, 0
- strh r1, [r0]
- pop {r7}
- pop {r0}
- bx r0
- .pool
- thumb_func_end RTC_SetReadOnlyInternal
-
- .align 2, 0 @ Don't pad with nop.
diff --git a/asm/m4a_1.s b/asm/m4a_1.s
index 0afc8aad4..361f66c1a 100644
--- a/asm/m4a_1.s
+++ b/asm/m4a_1.s
@@ -302,7 +302,7 @@ _081DD044:
ldrb r0, [r4, o_SoundChannel_type]
tst r0, 0x30
beq _081DD068
- bl sub_81DD264
+ bl sub_82DF49C
b _081DD228
_081DD068:
mov r10, r10, lsl 16
@@ -465,8 +465,8 @@ _081DD25E:
.pool
thumb_func_end SoundMainRAM
- arm_func_start sub_81DD264
-sub_81DD264:
+ arm_func_start sub_82DF49C
+sub_82DF49C:
ldr r6, [r4, o_SoundChannel_wav]
ldrb r0, [r4, o_SoundChannel_status]
tst r0, 0x20
@@ -505,10 +505,10 @@ _081DD2B4:
ldrb r0, [r4, o_SoundChannel_type]
tst r0, 0x10
bne _081DD3C0
- bl sub_81DD520
+ bl sub_82DF758
mov r0, r1
add r3, r3, 0x1
- bl sub_81DD520
+ bl sub_82DF758
sub r1, r1, r0
_081DD308:
ldr r6, [r5]
@@ -534,11 +534,11 @@ _081DD310:
b _081DD364
_081DD358:
add r3, r3, lr
- bl sub_81DD520
+ bl sub_82DF758
mov r0, r1
_081DD364:
add r3, r3, 0x1
- bl sub_81DD520
+ bl sub_82DF758
sub r1, r1, r0
_081DD370:
adds r5, r5, 0x40000000
@@ -565,10 +565,10 @@ _081DD3B0:
b _081DD3B0
_081DD3C0:
sub r3, r3, 0x1
- bl sub_81DD520
+ bl sub_82DF758
mov r0, r1
sub r3, r3, 0x1
- bl sub_81DD520
+ bl sub_82DF758
sub r1, r1, r0
_081DD3D8:
ldr r6, [r5]
@@ -594,11 +594,11 @@ _081DD3E0:
b _081DD434
_081DD428:
sub r3, r3, lr
- bl sub_81DD520
+ bl sub_82DF758
mov r0, r1
_081DD434:
sub r3, r3, 0x1
- bl sub_81DD520
+ bl sub_82DF758
sub r1, r1, r0
_081DD440:
adds r5, r5, 0x40000000
@@ -663,10 +663,10 @@ _081DD4F4:
str r7, [r5, 0x630]
str r6, [r5], 0x4
pop {r8,r12,pc}
- arm_func_end sub_81DD264
+ arm_func_end sub_82DF49C
- arm_func_start sub_81DD520
-sub_81DD520:
+ arm_func_start sub_82DF758
+sub_82DF758:
push {r0,r2,r5-r7,lr}
mov r0, r3, lsr 6
ldr r1, [r4, o_SoundChannel_xpi]
@@ -704,7 +704,7 @@ _081DD594:
ldrsb r1, [r5, r0]
pop {r0,r2,r5-r7,pc}
.pool
- arm_func_end sub_81DD520
+ arm_func_end sub_82DF758
thumb_func_start SoundMainBTM
SoundMainBTM:
diff --git a/asm/main.s b/asm/main.s
index d70b1ff96..9c30a3f95 100644
--- a/asm/main.s
+++ b/asm/main.s
@@ -693,7 +693,7 @@ Reset: @ 80008F4
ands r2, r1
strh r2, [r0, 0xA]
ldrh r0, [r0, 0xA]
- bl RTC_SetReadOnly
+ bl SiiRtcProtect
movs r0, 0xFF
bl SoftReset
pop {r4}
diff --git a/asm/rtc.s b/asm/rtc.s
index 1d7c508ae..dc63514fe 100644
--- a/asm/rtc.s
+++ b/asm/rtc.s
@@ -202,8 +202,8 @@ GameFreakRTC_Init: @ 802F21C
movs r0, 0
strh r0, [r5]
bl GameFreakRTC_ClearIME
- bl RTC_SetReadWrite
- bl RTC_Init
+ bl SiiRtcUnprotect
+ bl SiiRtcProbe
ldr r4, =gUnknown_03000DCC
strb r0, [r4]
bl GameFreakRTC_RestoreIME
@@ -281,7 +281,7 @@ GameFreakRTC_GetRTCDateTimeInternal: @ 802F2B8
adds r4, r0, 0
bl GameFreakRTC_ClearIME
adds r0, r4, 0
- bl RTC_GetDateTime
+ bl SiiRtcGetDateTime
bl GameFreakRTC_RestoreIME
pop {r4}
pop {r0}
@@ -295,7 +295,7 @@ GameFreakRTC_GetControlReg: @ 802F2D0
adds r4, r0, 0
bl GameFreakRTC_ClearIME
adds r0, r4, 0
- bl RTC_GetControlReg
+ bl SiiRtcGetStatus
bl GameFreakRTC_RestoreIME
pop {r4}
pop {r0}
@@ -452,7 +452,7 @@ _0802F3E6:
GameFreakRTC_Reset: @ 802F3F8
push {lr}
bl GameFreakRTC_ClearIME
- bl RTC_Reset
+ bl SiiRtcReset
bl GameFreakRTC_RestoreIME
pop {r0}
bx r0
diff --git a/include/siirtc.h b/include/siirtc.h
new file mode 100644
index 000000000..5864f95b8
--- /dev/null
+++ b/include/siirtc.h
@@ -0,0 +1,54 @@
+#ifndef GUARD_RTC_H
+#define GUARD_RTC_H
+
+#include "gba/gba.h"
+
+#define SIIRTCINFO_INTFE 0x01 // frequency interrupt enable
+#define SIIRTCINFO_INTME 0x02 // per-minute interrupt enable
+#define SIIRTCINFO_INTAE 0x04 // alarm interrupt enable
+#define SIIRTCINFO_24HOUR 0x40 // 0: 12-hour mode, 1: 24-hour mode
+#define SIIRTCINFO_POWER 0x80 // power on or power failure occurred
+
+enum
+{
+ MONTH_JAN = 1,
+ MONTH_FEB,
+ MONTH_MAR,
+ MONTH_APR,
+ MONTH_MAY,
+ MONTH_JUN,
+ MONTH_JUL,
+ MONTH_AUG,
+ MONTH_SEP,
+ MONTH_OCT,
+ MONTH_NOV,
+ MONTH_DEC
+};
+
+struct SiiRtcInfo
+{
+ u8 year;
+ u8 month;
+ u8 day;
+ u8 dayOfWeek;
+ u8 hour;
+ u8 minute;
+ u8 second;
+ u8 status;
+ u8 alarmHour;
+ u8 alarmMinute;
+};
+
+void SiiRtcUnprotect();
+void SiiRtcProtect();
+u8 SiiRtcProbe();
+bool8 SiiRtcReset();
+bool8 SiiRtcGetStatus(struct SiiRtcInfo *rtc);
+bool8 SiiRtcSetStatus(struct SiiRtcInfo *rtc);
+bool8 SiiRtcGetDateTime(struct SiiRtcInfo *rtc);
+bool8 SiiRtcSetDateTime(struct SiiRtcInfo *rtc);
+bool8 SiiRtcGetTime(struct SiiRtcInfo *rtc);
+bool8 SiiRtcSetTime(struct SiiRtcInfo *rtc);
+bool8 SiiRtcSetAlarm(struct SiiRtcInfo *rtc);
+
+#endif // GUARD_RTC_H
diff --git a/ld_script.txt b/ld_script.txt
index d22d0ddc9..31b058496 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -215,7 +215,7 @@ SECTIONS {
src/agb_flash.o(.text);
src/agb_flash_1m.o(.text);
src/agb_flash_mx.o(.text);
- asm/librtc.o(.text);
+ src/siirtc.o(.text);
asm/librfu.o(.text);
asm/libagbsyscall.o(.text);
tools/agbcc/lib/libgcc.a:_call_via_rX.o(.text);
@@ -251,7 +251,7 @@ SECTIONS {
src/agb_flash_1m.o(.rodata);
src/agb_flash_mx.o(.rodata);
src/agb_flash_le.o(.rodata);
- data/librtc_rodata.o(.rodata);
+ src/siirtc.o(.rodata);
data/librfu_rodata.o(.rodata);
tools/agbcc/lib/libgcc.a:_divdi3.o(.rodata);
tools/agbcc/lib/libgcc.a:_udivdi3.o(.rodata);
diff --git a/src/siirtc.c b/src/siirtc.c
new file mode 100644
index 000000000..965a068f1
--- /dev/null
+++ b/src/siirtc.c
@@ -0,0 +1,432 @@
+// Ruby/Sapphire/Emerald cartridges contain a Seiko Instruments Inc. (SII)
+// S-3511A real-time clock (RTC). This library ("SIIRTC_V001") is for
+// communicating with the RTC.
+
+#include "gba/gba.h"
+#include "siirtc.h"
+
+#define STATUS_INTFE 0x02 // frequency interrupt enable
+#define STATUS_INTME 0x08 // per-minute interrupt enable
+#define STATUS_INTAE 0x20 // alarm interrupt enable
+#define STATUS_24HOUR 0x40 // 0: 12-hour mode, 1: 24-hour mode
+#define STATUS_POWER 0x80 // power on or power failure occurred
+
+#define TEST_MODE 0x80 // flag in the "second" byte
+
+#define ALARM_AM 0x00
+#define ALARM_PM 0x80
+
+#define OFFSET_YEAR offsetof(struct SiiRtcInfo, year)
+#define OFFSET_MONTH offsetof(struct SiiRtcInfo, month)
+#define OFFSET_DAY offsetof(struct SiiRtcInfo, day)
+#define OFFSET_DAY_OF_WEEK offsetof(struct SiiRtcInfo, dayOfWeek)
+#define OFFSET_HOUR offsetof(struct SiiRtcInfo, hour)
+#define OFFSET_MINUTE offsetof(struct SiiRtcInfo, minute)
+#define OFFSET_SECOND offsetof(struct SiiRtcInfo, second)
+#define OFFSET_STATUS offsetof(struct SiiRtcInfo, status)
+#define OFFSET_ALARM_HOUR offsetof(struct SiiRtcInfo, alarmHour)
+#define OFFSET_ALARM_MINUTE offsetof(struct SiiRtcInfo, alarmMinute)
+
+#define INFO_BUF(info, index) (*((u8 *)(info) + (index)))
+
+#define DATETIME_BUF(info, index) INFO_BUF(info, OFFSET_YEAR + index)
+#define DATETIME_BUF_LEN (OFFSET_SECOND - OFFSET_YEAR + 1)
+
+#define TIME_BUF(info, index) INFO_BUF(info, OFFSET_HOUR + index)
+#define TIME_BUF_LEN (OFFSET_SECOND - OFFSET_HOUR + 1)
+
+#define WR 0 // command for writing data
+#define RD 1 // command for reading data
+
+#define CMD(n) (0x60 | (n << 1))
+
+#define CMD_RESET CMD(0)
+#define CMD_STATUS CMD(1)
+#define CMD_DATETIME CMD(2)
+#define CMD_TIME CMD(3)
+#define CMD_ALARM CMD(4)
+
+#define GPIO_PORT_DATA (*(vu16 *)0x80000C4)
+#define GPIO_PORT_DIRECTION (*(vu16 *)0x80000C6)
+#define GPIO_PORT_READ_ENABLE (*(vu16 *)0x80000C8)
+
+extern vu16 GPIOPortDirection;
+
+static u16 sDummy; // unused variable
+static bool8 sLocked;
+
+static int WriteCommand(u8 value);
+static int WriteData(u8 value);
+static u8 ReadData();
+static void EnableGpioPortRead();
+static void DisableGpioPortRead();
+
+static const char AgbLibRtcVersion[] = "SIIRTC_V001";
+
+void SiiRtcUnprotect()
+{
+ EnableGpioPortRead();
+ sLocked = FALSE;
+}
+
+void SiiRtcProtect()
+{
+ DisableGpioPortRead();
+ sLocked = TRUE;
+}
+
+u8 SiiRtcProbe()
+{
+ u8 errorCode;
+ struct SiiRtcInfo rtc;
+
+ if (!SiiRtcGetStatus(&rtc))
+ return 0;
+
+ errorCode = 0;
+
+ if ((rtc.status & (SIIRTCINFO_POWER | SIIRTCINFO_24HOUR)) == SIIRTCINFO_POWER
+ || (rtc.status & (SIIRTCINFO_POWER | SIIRTCINFO_24HOUR)) == 0)
+ {
+ // The RTC is in 12-hour mode. Reset it and switch to 24-hour mode.
+
+ // Note that the conditions are redundant and equivalent to simply
+ // "(rtc.status & SIIRTCINFO_24HOUR) == 0". It's possible that this
+ // was also intended to handle resetting the clock after power failure
+ // but a mistake was made.
+
+ if (!SiiRtcReset())
+ return 0;
+
+ errorCode++;
+ }
+
+ SiiRtcGetTime(&rtc);
+
+ if (rtc.second & TEST_MODE)
+ {
+ // The RTC is in test mode. Reset it to leave test mode.
+
+ if (!SiiRtcReset())
+ return (errorCode << 4) & 0xF0;
+
+ errorCode++;
+ }
+
+ return (errorCode << 4) | 1;
+}
+
+bool8 SiiRtcReset()
+{
+ u8 result;
+ struct SiiRtcInfo rtc;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_RESET | WR);
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ rtc.status = SIIRTCINFO_24HOUR;
+
+ result = SiiRtcSetStatus(&rtc);
+
+ return result;
+}
+
+bool8 SiiRtcGetStatus(struct SiiRtcInfo *rtc)
+{
+ u8 statusData;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_STATUS | RD);
+
+ GPIO_PORT_DIRECTION = 5;
+
+ statusData = ReadData();
+
+ rtc->status = (statusData & (STATUS_POWER | STATUS_24HOUR))
+ | ((statusData & STATUS_INTAE) >> 3)
+ | ((statusData & STATUS_INTME) >> 2)
+ | ((statusData & STATUS_INTFE) >> 1);
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+bool8 SiiRtcSetStatus(struct SiiRtcInfo *rtc)
+{
+ u8 statusData;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ statusData = STATUS_24HOUR
+ | ((rtc->status & SIIRTCINFO_INTAE) << 3)
+ | ((rtc->status & SIIRTCINFO_INTME) << 2)
+ | ((rtc->status & SIIRTCINFO_INTFE) << 1);
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_STATUS | WR);
+
+ WriteData(statusData);
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+bool8 SiiRtcGetDateTime(struct SiiRtcInfo *rtc)
+{
+ u8 i;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_DATETIME | RD);
+
+ GPIO_PORT_DIRECTION = 5;
+
+ for (i = 0; i < DATETIME_BUF_LEN; i++)
+ DATETIME_BUF(rtc, i) = ReadData();
+
+ INFO_BUF(rtc, OFFSET_HOUR) &= 0x7F;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+bool8 SiiRtcSetDateTime(struct SiiRtcInfo *rtc)
+{
+ u8 i;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_DATETIME | WR);
+
+ for (i = 0; i < DATETIME_BUF_LEN; i++)
+ WriteData(DATETIME_BUF(rtc, i));
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+bool8 SiiRtcGetTime(struct SiiRtcInfo *rtc)
+{
+ u8 i;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_TIME | RD);
+
+ GPIO_PORT_DIRECTION = 5;
+
+ for (i = 0; i < TIME_BUF_LEN; i++)
+ TIME_BUF(rtc, i) = ReadData();
+
+ INFO_BUF(rtc, OFFSET_HOUR) &= 0x7F;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+bool8 SiiRtcSetTime(struct SiiRtcInfo *rtc)
+{
+ u8 i;
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIO_PORT_DIRECTION = 7;
+
+ WriteCommand(CMD_TIME | WR);
+
+ for (i = 0; i < TIME_BUF_LEN; i++)
+ WriteData(TIME_BUF(rtc, i));
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+bool8 SiiRtcSetAlarm(struct SiiRtcInfo *rtc)
+{
+ u8 i;
+ u8 alarmData[2];
+
+ if (sLocked == TRUE)
+ return FALSE;
+
+ sLocked = TRUE;
+
+ // Decode BCD.
+ alarmData[0] = (rtc->alarmHour & 0xF) + 10 * ((rtc->alarmHour >> 4) & 0xF);
+
+ // The AM/PM flag must be set correctly even in 24-hour mode.
+
+ if (alarmData[0] < 12)
+ alarmData[0] = rtc->alarmHour | ALARM_AM;
+ else
+ alarmData[0] = rtc->alarmHour | ALARM_PM;
+
+ alarmData[1] = rtc->alarmMinute;
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 5;
+
+ GPIOPortDirection = 7; // Why is this the only instance that uses a symbol?
+
+ WriteCommand(CMD_ALARM | WR);
+
+ for (i = 0; i < 2; i++)
+ WriteData(alarmData[i]);
+
+ GPIO_PORT_DATA = 1;
+ GPIO_PORT_DATA = 1;
+
+ sLocked = FALSE;
+
+ return TRUE;
+}
+
+static int WriteCommand(u8 value)
+{
+ u8 i;
+ u8 temp;
+
+ for (i = 0; i < 8; i++)
+ {
+ temp = ((value >> (7 - i)) & 1);
+ GPIO_PORT_DATA = (temp << 1) | 4;
+ GPIO_PORT_DATA = (temp << 1) | 4;
+ GPIO_PORT_DATA = (temp << 1) | 4;
+ GPIO_PORT_DATA = (temp << 1) | 5;
+ }
+
+ // control reaches end of non-void function
+}
+
+static int WriteData(u8 value)
+{
+ u8 i;
+ u8 temp;
+
+ for (i = 0; i < 8; i++)
+ {
+ temp = ((value >> i) & 1);
+ GPIO_PORT_DATA = (temp << 1) | 4;
+ GPIO_PORT_DATA = (temp << 1) | 4;
+ GPIO_PORT_DATA = (temp << 1) | 4;
+ GPIO_PORT_DATA = (temp << 1) | 5;
+ }
+
+ // control reaches end of non-void function
+}
+
+static u8 ReadData()
+{
+ u8 i;
+ u8 temp;
+ u8 value;
+
+ for (i = 0; i < 8; i++)
+ {
+ GPIO_PORT_DATA = 4;
+ GPIO_PORT_DATA = 4;
+ GPIO_PORT_DATA = 4;
+ GPIO_PORT_DATA = 4;
+ GPIO_PORT_DATA = 4;
+ GPIO_PORT_DATA = 5;
+
+ temp = ((GPIO_PORT_DATA & 2) >> 1);
+ value = (value >> 1) | (temp << 7); // UB: accessing uninitialized var
+ }
+
+ return value;
+}
+
+static void EnableGpioPortRead()
+{
+ GPIO_PORT_READ_ENABLE = 1;
+}
+
+static void DisableGpioPortRead()
+{
+ GPIO_PORT_READ_ENABLE = 0;
+}
diff --git a/sym_bss.txt b/sym_bss.txt
index 45005362c..734c4ec4c 100644
--- a/sym_bss.txt
+++ b/sym_bss.txt
@@ -497,11 +497,6 @@ gUnknown_03001300: @ 3001300
.space 0x770
.include "src/agb_flash.o"
-
- .space 0x2
-
-gUnknown_03001A7E: @ 3001A7E
- .space 0x2
-
+ .include "src/siirtc.o"
.include "tools/agbcc/lib/libgcc.a:dp-bit.o"
.include "tools/agbcc/lib/libgcc.a:fp-bit.o"
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-10 08:31:34 +0000