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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [libgloss/] [fr30/] [crt0.s] - Blame information for rev 258

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Line No. Rev Author Line
1 207 jeremybenn
# FR30 startup code
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        .section .text
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        .global _start
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_start:
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        ;; Initialise the stack pointer
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        ldi:32  __stack, r0
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        mov     r0, sp
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        mov     r0, fp
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        ;; Zero the data space
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        ldi:32  #_edata, r0
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        ldi:32  #_end,   r1
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        ldi:8   #0,       r2
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.L0:
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        st      r2, @r0
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        add     #4, r0
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        cmp     r1, r0
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        blt     .L0
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        ;; Call global and static constructors
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        ldi:32  _init, r0
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        call    @r0
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        ;;  Setup destrcutors to be called from exit.
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        ;;  (Just in case main never returns....)
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        ldi:32  atexit, r0
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        ldi:32  _fini, r4
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        call    @r0
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        ;;  Initialise argc, argv and envp to empty
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        ldi:8   #0, r4
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        ldi:8   #0, r5
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        ldi:8   #0, r6
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        ;; Call main
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        ldi:32  main, r0
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        call    @r0
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        ;; Jump to exit
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        ldi:32  exit, r0
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        call    @r0
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        ;; Should never reach here
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        int     #9

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