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[/] [eco32/] [trunk/] [simtest/] [rom/] [rom09.s] - Blame information for rev 130

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Line No. Rev Author Line
1 37 hellwig
;
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; rom09.s -- string output with timing loop
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;
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; $8  I/O base address
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; $9  temporary value
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; $10 character
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; $11 pointer to string
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; $12 timer base address
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; $13 timer value
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; $31 return address
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        .set    oba,0xF0300000
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        .set    tba,0xF0000000
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        add     $8,$0,oba
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        add     $12,$0,tba
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        add     $11,$0,hello
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loop:
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        ldbu    $10,$11,0
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stop:
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        beq     $10,$0,stop
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        jal     out
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        add     $11,$11,1
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        jal     timing
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        j       loop
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out:
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        stw     $10,$8,12
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        jr      $31
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timing:
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        ldw     $13,$12,8
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        sub     $9,$13,0x03C00000
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tim1:
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        ldw     $13,$12,8
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        bgtu    $13,$9,tim1
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        jr      $31
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hello:
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        .byte   "Hello, world!", 0x0D, 0x0A, 0

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