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[/] [eco32/] [trunk/] [hwtests/] [dsptest/] [serial.s] - Blame information for rev 178

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Line No. Rev Author Line
1 14 hellwig
;
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; serial.s -- the serial line interface
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;
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;***************************************************************
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        .set    ser0base,0xF0300000     ; serial line 0 base address
8 149 hellwig
        .set    ser1base,0xF0301000     ; serial line 1 base address
9 14 hellwig
 
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        .export serinit                 ; initialize serial interface
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        .export ser0inchk               ; line 0 input check
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        .export ser0in                  ; line 0 input
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        .export ser0outchk              ; line 0 output check
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        .export ser0out                 ; line 0 output
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        .export ser1inchk               ; line 1 input check
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        .export ser1in                  ; line 1 input
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        .export ser1outchk              ; line 1 output check
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        .export ser1out                 ; line 1 output
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;***************************************************************
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        .code
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        .align  4
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serinit:
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        jr      $31
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;***************************************************************
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        .code
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        .align  4
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ser0inchk:
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        add     $8,$0,ser0base
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        ldw     $2,$8,0
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        and     $2,$2,1
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        jr      $31
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ser0in:
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        add     $8,$0,ser0base
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ser0in1:
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        ldw     $9,$8,0
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        and     $9,$9,1
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        beq     $9,$0,ser0in1
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        ldw     $2,$8,4
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        jr      $31
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ser0outchk:
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        add     $8,$0,ser0base
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        ldw     $2,$8,8
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        and     $2,$2,1
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        jr      $31
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ser0out:
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        add     $8,$0,ser0base
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ser0out1:
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        ldw     $9,$8,8
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        and     $9,$9,1
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        beq     $9,$0,ser0out1
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        stw     $4,$8,12
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        jr      $31
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;***************************************************************
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        .code
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        .align  4
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ser1inchk:
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        add     $8,$0,ser1base
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        ldw     $2,$8,0
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        and     $2,$2,1
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        jr      $31
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ser1in:
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        add     $8,$0,ser1base
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ser1in1:
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        ldw     $9,$8,0
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        and     $9,$9,1
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        beq     $9,$0,ser1in1
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        ldw     $2,$8,4
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        jr      $31
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ser1outchk:
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        add     $8,$0,ser1base
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        ldw     $2,$8,8
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        and     $2,$2,1
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        jr      $31
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ser1out:
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        add     $8,$0,ser1base
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ser1out1:
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        ldw     $9,$8,8
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        and     $9,$9,1
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        beq     $9,$0,ser1out1
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        stw     $4,$8,12
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        jr      $31

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