URL https://opencores.org/ocsvn/eco32/eco32/trunk

Subversion Repositories eco32

[/] [eco32/] [trunk/] [hwtests/] [tmrtest/] [tmrtest.s] - Blame information for rev 243

Go to most recent revision | Details | Compare with Previous | View Log


;
; tmrtest.s -- test timer
;
 
        .set    tmr_base,0xF0000000
        .set    io_base,0xF0300000
 
        add     $8,$0,tmr_base
        add     $9,$0,50000000           ; divisor for 1 sec
        stw     $9,$8,4
        add     $7,$0,'a'-10
again:
        jal     out
wait:
        add     $8,$0,tmr_base
        ldw     $9,$8,0
        and     $9,$9,1
        beq     $9,$0,wait
        stw     $0,$8,0
        add     $7,$7,1
        add     $9,$0,'z'+1
        bne     $7,$9,again
        add     $7,$0,'a'
        j       again
 
out:
        add     $8,$0,io_base
out1:
        ldw     $9,$8,8
        and     $9,$9,1
        beq     $9,$0,out1
        stw     $7,$8,12
        jr      $31

Line No.	Rev	Author	Line
1	14	hellwig	`;`
2			`; tmrtest.s -- test timer`
3			`;`
4
5			`.set tmr_base,0xF0000000`
6			`.set io_base,0xF0300000`
7
8			`add $8,$0,tmr_base`
9	39	hellwig	`add $9,$0,50000000 ; divisor for 1 sec`
10	14	hellwig	`stw $9,$8,4`
11			`add $7,$0,'a'-10`
12			`again:`
13			`jal out`
14			`wait:`
15			`add $8,$0,tmr_base`
16			`ldw $9,$8,0`
17			`and $9,$9,1`
18			`beq $9,$0,wait`
19			`stw $0,$8,0`
20			`add $7,$7,1`
21			`add $9,$0,'z'+1`
22			`bne $7,$9,again`
23			`add $7,$0,'a'`
24			`j again`
25
26			`out:`
27			`add $8,$0,io_base`
28			`out1:`
29			`ldw $9,$8,8`
30			`and $9,$9,1`
31			`beq $9,$0,out1`
32			`stw $7,$8,12`
33			`jr $31`

Browse

Tools

Subversion Repositories eco32

[/] [eco32/] [trunk/] [hwtests/] [tmrtest/] [tmrtest.s] - Blame information for rev 243