Compiler/TMS320F28035: What's the opcode of LB _c_int00 in "DSP2803x_CodeStartBranch.asm"

Tool/software: TI C/C++ Compiler

Hi, experts

When I check code

    .if WD_DISABLE == 1

    .text
wd_disable:
    SETC OBJMODE        ;Set OBJMODE for 28x object code
    EALLOW              ;Enable EALLOW protected register access
    MOVZ DP, #7029h>>6  ;Set data page for WDCR register
    MOV @7029h, #0068h  ;Set WDDIS bit in WDCR to disable WD
    EDIS                ;Disable EALLOW protected register access
    LB _c_int00         ;Branch to start of boot.asm in RTS library

    .endif

I read the wd_disable in flash, the code "LB _c_int00" is 0x007F 6F68

the _c_int00’s adress is 0x3F6F68

But I am confused that I cannot find the opcode in <TMS320C28x CPU and Instruction Set>, there are only two instructions about LB: 

1.LB *XAR7

2.LB 22bit

The opcode of these two instruction cannot match the "LB _c_int00" above. How to  interprete “0x007F 6F68”？