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[/] [eco32/] [trunk/] [stdalone/] [dhrystone/] [port/] [start.s] - Blame information for rev 280

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Line No. Rev Author Line
1 280 hellwig
;
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; start.s -- startup code
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;
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        .import main
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        .import _ecode
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        .import _edata
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        .import _ebss
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        .export _bcode
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        .export _bdata
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        .export _bbss
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        .code
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_bcode:
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        .data
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_bdata:
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        .bss
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_bbss:
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        .code
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start:
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        mvfs    $8,0
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        or      $8,$8,1 << 27   ; let vector point to RAM
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        mvts    $8,0
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        add     $29,$0,stack     ; set sp
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        add     $10,$0,_bdata    ; copy data segment
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        add     $8,$0,_edata
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        sub     $9,$8,$10
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        add     $9,$9,_ecode
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        j       cpytest
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cpyloop:
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        ldw     $11,$9,0
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        stw     $11,$8,0
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cpytest:
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        sub     $8,$8,4
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        sub     $9,$9,4
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        bgeu    $8,$10,cpyloop
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        add     $8,$0,_bbss      ; clear bss
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        add     $9,$0,_ebss
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        j       clrtest
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clrloop:
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        stw     $0,$8,0
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        add     $8,$8,4
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clrtest:
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        bltu    $8,$9,clrloop
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        jal     main            ; call 'main'
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start1:
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        j       start1          ; loop
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        .bss
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        .align  4
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        .space  0x800
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stack:

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