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[/] [eco32/] [trunk/] [hwtests/] [irqtest/] [irqtest.s] - Rev 154
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; ; irqtest.s -- test interrupts ; .set stacktop,0xC0001000 .set tmr_base,0xF0000000 .set io_base,0xF0300000 reset: j start interrupt: j tmrisr userMiss: j userMiss start: add $29,$0,stacktop add $8,$0,tmr_base add $9,$0,50000000 ; divisor for 1 sec stw $9,$8,4 add $9,$0,0x02 stw $9,$8,0 add $9,$0,0x00804000 mvts $9,0 add $7,$0,'a'-10 loop: j loop tmrisr: add $7,$7,1 add $9,$0,'z'+1 bne $7,$9,noinit add $7,$0,'a' noinit: add $4,$7,$0 jal out add $8,$0,tmr_base add $9,$0,0x02 stw $9,$8,0 add $4,$0,' ' jal out add $4,$0,' ' jal out mvfs $5,0 add $6,$0,'S' jal show add $4,$0,' ' jal out add $4,$0,' ' jal out add $5,$30,$0 add $6,$0,'R' jal show add $4,$0,0x0D jal out add $4,$0,0x0A jal out rfx show: sub $29,$29,4 stw $31,$29,0 add $4,$6,$0 jal out add $4,$0,' ' jal out add $16,$0,32 digit: and $17,$5,0x80000000 bne $17,$0,one zero: add $4,$0,'0' jal out j next one: add $4,$0,'1' jal out next: sll $5,$5,1 sub $16,$16,1 bne $16,$0,digit ldw $31,$29,0 add $29,$29,4 jr $31 out: add $8,$0,io_base out1: ldw $9,$8,8 and $9,$9,1 beq $9,$0,out1 stw $4,$8,12 jr $31
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