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[/] [eco32/] [trunk/] [monitor/] [monitor/] [boards/] [s3e-500/] [start.s] - Diff between revs 180 and 182

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Rev 180	Rev 182
Line 25...	Line 25...

`.import _ecode`	`.import _ecode`
`.import _edata`	`.import _edata`
`.import _ebss`	`.import _ebss`

`.import kbdinit`
`.import kbdinchk`
`.import kbdin`

`.import dspinit`	`.import dspinit`
`.import dspoutchk`	`.import dspoutchk`
`.import dspout`	`.import dspout`

`.import serinit`	`.import kbdinit`
	`.import kbdinchk`
	`.import kbdin`

	`.import ser0init`
`.import ser0inchk`	`.import ser0inchk`
`.import ser0in`	`.import ser0in`
`.import ser0outchk`	`.import ser0outchk`
`.import ser0out`	`.import ser0out`

`.import sctcapctl`	`.import ser1init`
`.import sctioctl`	`.import ser1inchk`
`.import sctcapser`	`.import ser1in`
`.import sctioser`	`.import ser1outchk`
	`.import ser1out`

	`.import dskinit`
	`.import dskcapctl`
	`.import dskioctl`
	`.import dskcapser`
	`.import dskioser`

`.import main`	`.import main`

`.export _bcode`	`.export _bcode`
`.export _bdata`	`.export _bdata`
Line 61...	Line 68...
`.export soutchk`	`.export soutchk`
`.export sout`	`.export sout`
`.export dskcap`	`.export dskcap`
`.export dskio`	`.export dskio`

`.export setISR`
`.export setUMSR`
`.export isrPtr`
`.export umsrPtr`

`.export getTLB_HI`	`.export getTLB_HI`
`.export getTLB_LO`	`.export getTLB_LO`
`.export setTLB`	`.export setTLB`

`.export saveState`	`.export saveState`
Line 149...	Line 151...
`j reserved2`	`j reserved2`

`reserved3:`	`reserved3:`
`j reserved3`	`j reserved3`

`setISR:`
`j setISR1`

`setUMSR:`
`j setUMSR1`

`;***************************************************************`	`;***************************************************************`

`.code`	`.code`
`.align 4`	`.align 4`

Line 173...	Line 169...
`stw $9,$8,0`	`stw $9,$8,0`

`; initialize TLB`	`; initialize TLB`
`mvts $0,TLB_ENTRY_LO ; invalidate all TLB entries`	`mvts $0,TLB_ENTRY_LO ; invalidate all TLB entries`
`add $8,$0,dmapaddr ; by impossible virtual page number`	`add $8,$0,dmapaddr ; by impossible virtual page number`
`add $9,$0,$0`
`add $10,$0,TLB_ENTRIES`
`tlbloop:`
`mvts $8,TLB_ENTRY_HI`	`mvts $8,TLB_ENTRY_HI`
`mvts $9,TLB_INDEX`	`add $8,$0,$0`
	`add $9,$0,TLB_ENTRIES`
	`tlbloop:`
	`mvts $8,TLB_INDEX`
`tbwi`	`tbwi`
`add $8,$8,0x1000 ; all entries must be different`	`add $8,$8,1`
`add $9,$9,1`	`bne $8,$9,tlbloop`
`bne $9,$10,tlbloop`

`; copy data segment`	`; copy data segment`
`add $10,$0,_bdata ; lowest dst addr to be written to`	`add $10,$0,_bdata ; lowest dst addr to be written to`
`add $8,$0,_edata ; one above the top dst addr`	`add $8,$0,_edata ; one above the top dst addr`
`sub $9,$8,$10 ; $9 = size of data segment`	`sub $9,$8,$10 ; $9 = size of data segment`
Line 211...	Line 206...

`; now do some useful work`	`; now do some useful work`
`add $29,$0,stacktop ; setup monitor stack`	`add $29,$0,stacktop ; setup monitor stack`
`jal dspinit ; init display`	`jal dspinit ; init display`
`jal kbdinit ; init keyboard`	`jal kbdinit ; init keyboard`
`jal serinit ; init serial interface`	`jal ser0init ; init serial line 0`
	`jal ser1init ; init serial line 1`
	`jal dskinit ; init disk`
`jal main ; enter command loop`	`jal main ; enter command loop`

`; main should never return`	`; main should never return`
`j start ; just to be sure...`	`j start ; just to be sure...`

Line 252...	Line 249...
`.align 4`	`.align 4`

`; int dskcap(int dskno)`	`; int dskcap(int dskno)`
`dcap:`	`dcap:`
`bne $4,$0,dcapser`	`bne $4,$0,dcapser`
`j sctcapctl`	`j dskcapctl`
`dcapser:`	`dcapser:`
`j sctcapser`	`j dskcapser`

`; int dskio(int dskno, char cmd, int sct, Word addr, int nscts)`	`; int dskio(int dskno, char cmd, int sct, Word addr, int nscts)`
`dio:`	`dio:`
`bne $4,$0,dioser`	`bne $4,$0,dioser`
`add $4,$5,$0`	`add $4,$5,$0`
`add $5,$6,$0`	`add $5,$6,$0`
`add $6,$7,$0`	`add $6,$7,$0`
`ldw $7,$29,16`	`ldw $7,$29,16`
`j sctioctl`	`j dskioctl`
`dioser:`	`dioser:`
`add $4,$5,$0`	`add $4,$5,$0`
`add $5,$6,$0`	`add $5,$6,$0`
`add $6,$7,$0`	`add $6,$7,$0`
`ldw $7,$29,16`	`ldw $7,$29,16`
`j sctioser`	`j dskioser`

`;***************************************************************`

`.code`
`.align 4`

`; void setISR(Word ptr)`
`setISR1:`
`stw $4,$0,isrPtr`
`jr $31`

`; void setUMSR(Word ptr)`
`setUMSR1:`
`stw $4,$0,umsrPtr`
`jr $31`

`.data`
`.align 4`

`isrPtr:`
`.word 0`

`umsrPtr:`
`.word 0`

`;***************************************************************`	`;***************************************************************`

`.code`	`.code`
`.align 4`	`.align 4`

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[/] [eco32/] [trunk/] [monitor/] [monitor/] [boards/] [s3e-500/] [start.s] - Diff between revs 180 and 182