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db in a51, what is in c51?

msg_st:
mov dptr,#msg
mov R0,#30h
msg_nxt:
clr a
movc a,@a+dptr
jz msg_end
mov @R0,a
inc dptr
inc R0
sjmp msg_nxt
msg_end:
ret

msg:
db 01h,01h,7ch,0feh,92h,0a2h,0feh,07ch,01,10h
db .......
many more
db .......0h ;msg stop

0