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[/] [eco32/] [trunk/] [hwtests/] [irqtest/] [irqtest.s] - Blame information for rev 239

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Line No. Rev Author Line
1 14 hellwig
;
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; irqtest.s -- test interrupts
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;
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        .set    stacktop,0xC0001000
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        .set    tmr_base,0xF0000000
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        .set    io_base,0xF0300000
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reset:
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        j       start
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interrupt:
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        j       tmrisr
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userMiss:
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        j       userMiss
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start:
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        add     $29,$0,stacktop
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        add     $8,$0,tmr_base
21 39 hellwig
        add     $9,$0,50000000           ; divisor for 1 sec
22 14 hellwig
        stw     $9,$8,4
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        add     $9,$0,0x02
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        stw     $9,$8,0
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        add     $9,$0,0x00804000
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        mvts    $9,0
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        add     $7,$0,'a'-10
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loop:
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        j       loop
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tmrisr:
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        add     $7,$7,1
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        add     $9,$0,'z'+1
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        bne     $7,$9,noinit
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        add     $7,$0,'a'
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noinit:
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        add     $4,$7,$0
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        jal     out
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        add     $8,$0,tmr_base
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        add     $9,$0,0x02
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        stw     $9,$8,0
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        add     $4,$0,' '
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        jal     out
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        add     $4,$0,' '
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        jal     out
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        mvfs    $5,0
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        add     $6,$0,'S'
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        jal     show
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        add     $4,$0,' '
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        jal     out
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        add     $4,$0,' '
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        jal     out
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        add     $5,$30,$0
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        add     $6,$0,'R'
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        jal     show
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        add     $4,$0,0x0D
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        jal     out
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        add     $4,$0,0x0A
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        jal     out
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        rfx
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show:
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        sub     $29,$29,4
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        stw     $31,$29,0
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        add     $4,$6,$0
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        jal     out
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        add     $4,$0,' '
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        jal     out
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        add     $16,$0,32
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digit:
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        and     $17,$5,0x80000000
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        bne     $17,$0,one
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zero:
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        add     $4,$0,'0'
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        jal     out
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        j       next
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one:
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        add     $4,$0,'1'
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        jal     out
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next:
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        sll     $5,$5,1
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        sub     $16,$16,1
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        bne     $16,$0,digit
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        ldw     $31,$29,0
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        add     $29,$29,4
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        jr      $31
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out:
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        add     $8,$0,io_base
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out1:
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        ldw     $9,$8,8
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        and     $9,$9,1
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        beq     $9,$0,out1
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        stw     $4,$8,12
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        jr      $31

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