/*****************************************************************
 * Initialize data: clear .bss
 * can be overwriten by user function with the same name
 *****************************************************************/
        .section .init4, "ax", @progbits

        .weak   __do_clear_bss
        .func   __do_clear_bss

__do_clear_bss:
        mov     #__bss_size, r15
        tst     r15
        jz      .L__clear_bss_end
.L__clear_bss_loop:
        dec     r15
        clr.b   __bss_start(r15)    ; RAM is always in lower 64K, so 430 instruction
                                    ; is acceptable here for 430X core too.
        jne     .L__clear_bss_loop
.L__clear_bss_end:

        .endfunc