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// MCore StartUp Code.

        .import main

        .import exit

        .text

        .export _start

_start:

        .export _mainCRTStartup

_mainCRTStartup:

        // Initialise the stack pointer

        lrw     r1, _stack

        mov     r0, r1

        // Zero the .bss data space

        lrw     r1, __bss_start__

        lrw     r2, __bss_end__

        movi    r3, 0

.L0:

        st      r3, (r1, 0)

        addi    r1, 4

        cmphs   r1, r2

        bf      .L0

#ifdef __ELF__

        // Call the global/static constructors

        jbsr    _init

        // Setup destructors to be called from exit,

        // just in case main never returns...

        lrw     r2, _fini

        jbsr    atexit

#endif

        // Initialise the parameters to main()

        movi    r2, 0   // argc

        movi    r3, 0   // argv

        movi    r4, 0   // envp

        // Call main

        jbsr    main

        // Call exit

        movi    r2, 0

        jbsr    exit

        // We should never reach here.

        bkpt