rsr a1, DEBUG_PC
    movi    a2, initial_breakpoint
    bne a1, a2, 1f // jumps to location formed by address of this inst. + '1f' label (first label with '1:'') + 4. Of course when a1 1= a2
    addi    a1, a1, 3
1:
    s32i    a1, a3, DEBUG_PC * 4

    SAVE    EXCSAVE_1
    SAVE_   DEBUG_PS, PS
    SAVE    EXCCAUSE
    SAVE    DEBUGCAUSE
    SAVE    EXCVADDR

    movi    a1, XCHAL_NUM_AREGS / 4 - 1
    movi    a2, aregs
1:
    s32i    a4, a2, 16
    s32i    a5, a2, 20
    s32i    a6, a2, 24
    s32i    a7, a2, 28