>> movs    r10,#0xE000000
Loads the value $E000000 into R10.

>> adc     r10,r10,#0xE000
Adds $E000 to R10.
At this point R10=$E00E000

>> sbcs    r10,r10,#0xB000
Subtracts $B000 from R10 and sets the carry flag.
At this point R10=$E003000, CF=1

>> adc     r10,r10,#0x2D
Adds $2D to R10. Carry flag is set, so this instruction will add it too.
At this point R10=$E00302E, CF=0

>> sbcs    r10,r10,#0x29
Substracts $29 from R10. It sets the carry flag too, but no one cares.
At this point R10=$E003004, the save file offset where the current map number is.

>> movs    r12,#0xE0
Loads the value $E0 into R12.

>> sbcs    r12,r12,#0xD0
Substracts $D0 from R12 and sets the carry flag.
At this point R12=$10, CF=1

>> adcs    r12,r12,#0xB00
Adds $0B00 to R12. Carry flag is set, so this instruction will add it too.
At this point R12=$0B11, CF=0

>> sbc     r12,r12,#0x0
Substracts 0 from R12. Carry flag is unset, so even though we're not subtracting anything, R12 will be decreased by 1.
At this point R12=$0B10, CF=0
$0B10 is the ID of the Hall of Fame room.

>> str     r12,[r10]!
Stores the 32-bit value in r12 into r10. It effectively writes bytes from R12 in backwards order to R10.
So $E003004=$10, $E003005=$0B, $E003006=$00, $E003007=$00

>> adc     r10,r10,#0xDF0
Adds $0DF0 to R10.
At this point, R10=$E003DF4

>> adc     r10,r10,#0xDF0
Adds $0DF0 to R10.
At this point, R10=$E004BE4, CF=0

>> sbcs    r10,r10,#0xBF0
Subtracts $0BF0 from R10. Carry flag is unset, so the instruction will subtract it too.
At this point, R10=$E003FF3, CF=1

>> adc     r10,r10,#0x0
Adds 0 to R10. Carry flag is set, so even though we're not adding anything, R10 will be increased by 1.
At this point R10=$E003FF4

>> movs    r12,#0xE000000
Loads the value $0E000000 into R12.

>> sbcs    r12,r12,#0xD000000
Subtracts $D000000 from R12.
At this point R12=$01000000

>> adcs    r12,r12,#0x**00
Adds first byte of the checksum to R12.
At this point R12=$0100XX00

>> adcs    r12,r12,#0x**
Adds second byte of the checksum to R12.
At this point R12=$0100XXYY

>> str     r12,[r10]!
Stores the 32-bit value in r12 into r10. It effectively writes bytes from R12 in backwards order to R10.
So $E003FF4=$YY, $E003FF5=$XX, $E003FF6=$00, $E003FF7=$01
It updates the checksum in the save so it matches. $01 is the section ID (team/items)