3000010 - play timer start; rapidly changing byte
Timer format is Hours*60^3+Minutes*60^2+Seconds*60+Frames

08000be0  b580 push {r7,lr}
08000be2  b081 add sp, -#0x4
08000be4  466f mov r7, sp
08000be6  1c38 add r0, r7, #0x0
08000be8  492c ldr r1, [$08000c9c] (=$03000000)
08000bea  884a ldrh r2, [r1, #0x2]
08000bec  02d1 lsl r1, r2, #0x0b
08000bee  4a2b ldr r2, [$08000c9c] (=$03000000)
08000bf0  8813 ldrh r3, [r2, #0x0]
08000bf2  095a lsr r2, r3, #0x05
08000bf4  1889 add r1, r1, r2
08000bf6  1c0a add r2, r1, #0x0
08000bf8  8002 strh r2, [r0, #0x0]
08000bfa  4828 ldr r0, [$08000c9c] (=$03000000)
08000bfc  4927 ldr r1, [$08000c9c] (=$03000000)
08000bfe  888a ldrh r2, [r1, #0x4]
08000c00  0051 lsl r1, r2, #0x01
08000c02  8882 ldrh r2, [r0, #0x4]
08000c04  2300 mov r3, #0x0
08000c06  401a and r2, r3
08000c08  1c13 add r3, r2, #0x0
08000c0a  1c1a add r2, r3, #0x0
08000c0c  430a orr r2, r1
08000c0e  1c11 add r1, r2, #0x0
08000c10  8081 strh r1, [r0, #0x4]
08000c12  4822 ldr r0, [$08000c9c] (=$03000000)
08000c14  8841 ldrh r1, [r0, #0x2]
08000c16  2280 mov r2, #0x80
08000c18  0212 lsl r2, r2, #0x08
08000c1a  1c08 add r0, r1, #0x0
08000c1c  4010 and r0, r2
08000c1e  1c02 add r2, r0, #0x0
08000c20  0411 lsl r1, r2, #0x10
08000c22  0c08 lsr r0, r1, #0x10
08000c24  2800 cmp r0, #0x0
08000c26  d00c beq $08000c42
08000c28  491c ldr r1, [$08000c9c] (=$03000000)
08000c2a  481c ldr r0, [$08000c9c] (=$03000000)
08000c2c  491b ldr r1, [$08000c9c] (=$03000000)
08000c2e  888a ldrh r2, [r1, #0x4]
08000c30  1c51 add r1, r2, #0x1
08000c32  8882 ldrh r2, [r0, #0x4]
08000c34  2300 mov r3, #0x0
08000c36  401a and r2, r3
08000c38  1c13 add r3, r2, #0x0
08000c3a  1c1a add r2, r3, #0x0
08000c3c  430a orr r2, r1
08000c3e  1c11 add r1, r2, #0x0
08000c40  8081 strh r1, [r0, #0x4]
08000c42  1c38 add r0, r7, #0x0
08000c44  1c39 add r1, r7, #0x0
08000c46  4a15 ldr r2, [$08000c9c] (=$03000000)
08000c48  8809 ldrh r1, [r1, #0x0]
08000c4a  8892 ldrh r2, [r2, #0x4]
08000c4c  4051 eor r1, r2
08000c4e  1c0a add r2, r1, #0x0
08000c50  8002 strh r2, [r0, #0x0]
08000c52  4812 ldr r0, [$08000c9c] (=$03000000)
08000c54  4911 ldr r1, [$08000c9c] (=$03000000)
08000c56  8882 ldrh r2, [r0, #0x4]
08000c58  2300 mov r3, #0x0
08000c5a  401a and r2, r3
08000c5c  1c13 add r3, r2, #0x0
08000c5e  8849 ldrh r1, [r1, #0x2]
08000c60  1c1a add r2, r3, #0x0
08000c62  430a orr r2, r1
08000c64  1c11 add r1, r2, #0x0
08000c66  8081 strh r1, [r0, #0x4]
08000c68  480c ldr r0, [$08000c9c] (=$03000000)
08000c6a  490c ldr r1, [$08000c9c] (=$03000000)
08000c6c  8842 ldrh r2, [r0, #0x2]
08000c6e  2300 mov r3, #0x0
08000c70  401a and r2, r3
08000c72  1c13 add r3, r2, #0x0
08000c74  8809 ldrh r1, [r1, #0x0]
08000c76  1c1a add r2, r3, #0x0
08000c78  430a orr r2, r1
08000c7a  1c11 add r1, r2, #0x0
08000c7c  8041 strh r1, [r0, #0x2]
08000c7e  4807 ldr r0, [$08000c9c] (=$03000000)
08000c80  1c39 add r1, r7, #0x0
08000c82  8802 ldrh r2, [r0, #0x0]
08000c84  2300 mov r3, #0x0
08000c86  401a and r2, r3
08000c88  1c13 add r3, r2, #0x0
08000c8a  8809 ldrh r1, [r1, #0x0]
08000c8c  1c1a add r2, r3, #0x0
08000c8e  430a orr r2, r1
08000c90  1c11 add r1, r2, #0x0
08000c92  8001 strh r1, [r0, #0x0]
08000c94  1c38 add r0, r7, #0x0
08000c96  8801 ldrh r1, [r0, #0x0]
08000c98  1c08 add r0, r1, #0x0
08000c9a  e001 b $08000ca0
08000c9c  0000 lsl r0, r0, #0x00
08000c9e  0300 lsl r0, r0, #0x0c
08000ca0  b001 add sp, #0x4
08000ca2  bc80 pop {r7}
08000ca4  bc02 pop {r1}
08000ca6  4708 bx r1