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What is the default segment in indirect addressing mode?

David Zhang

I am reading the start_va.a66. I found some statements like following don't specifies segment value.
Then what is the default segment value for the [R8+]?

MOV R5,#0
MOV R2,[R8+] ; Count
JMPR cc_Z,EndClear
MOV R3,R2
MOV R4,[R8+]
JBC R2.14,ClearNear
ClearBit: MOV R3,R4

Thanks.