4xm.mid

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· MID 代码 · 共 4,862 行 · 第 1/5 页

	addiu	$3,$21,4864
	addiu	$4,$21,4992
	sw	$0,6176($sp)
	addiu	$20,$21,4608
	sw	$2,6232($sp)
	sw	$3,6240($sp)
	sw	$4,6244($sp)
$L308:
	lw	$2,44($21)
	.set	noreorder
	.set	nomacro
	jal	$2
	move	$4,$20
	.set	macro
	.set	reorder

	lui	$3,%hi(ff_zigzag_direct)
	lui	$2,%hi(dequant_table)
	addiu	$23,$3,%lo(ff_zigzag_direct)
	addiu	$fp,$2,%lo(dequant_table)
	move	$22,$0
	addiu	$19,$21,4608
$L309:
	lw	$8,8($16)
	lw	$13,0($16)
	sra	$4,$8,3
	addu	$4,$13,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$8,0x7
	sll	$2,$2,$4
	srl	$2,$2,23
	lw	$12,4588($21)
	sll	$2,$2,2
	addu	$2,$12,$2
	lh	$7,2($2)
	.set	noreorder
	.set	nomacro
	bltz	$7,$L468
	lh	$18,0($2)
	.set	macro
	.set	reorder

$L310:
	addu	$2,$8,$7
	sra	$3,$18,4
	.set	noreorder
	.set	nomacro
	bne	$3,$0,$L469
	sw	$2,8($16)
	.set	macro
	.set	reorder

	bne	$18,$0,$L315
$L473:
	move	$3,$0
$L317:
	lw	$2,4600($21)
	li	$7,1			# 0x1
	addu	$2,$3,$2
	sll	$2,$2,16
	sra	$2,$2,16
	sw	$2,4600($21)
	sh	$2,0($19)
	move	$14,$23
	move	$15,$fp
$L450:
	lw	$10,8($16)
	sra	$4,$10,3
	addu	$4,$13,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$10,0x7
	sll	$2,$2,$4
	srl	$2,$2,23
	sll	$2,$2,2
	addu	$2,$12,$2
	lh	$9,2($2)
	.set	noreorder
	.set	nomacro
	bltz	$9,$L470
	lh	$8,0($2)
	.set	macro
	.set	reorder

$L319:
	addu	$2,$10,$9
	.set	noreorder
	.set	nomacro
	beq	$8,$0,$L322
	sw	$2,8($16)
	.set	macro
	.set	reorder

	li	$2,240			# 0xf0
	.set	noreorder
	.set	nomacro
	beq	$8,$2,$L471
	sra	$2,$8,4
	.set	macro
	.set	reorder

	lw	$5,8($17)
	lw	$3,0($17)
	addu	$7,$7,$2
	andi	$11,$8,0xf
	sra	$2,$5,3
	addu	$2,$2,$3
	addu	$4,$11,$5
	slt	$3,$7,64
	lbu	$10,3($2)
	lbu	$6,0($2)
	lbu	$8,1($2)
	lbu	$9,2($2)
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L389
	sw	$4,8($17)
	.set	macro
	.set	reorder

	sll	$3,$6,24
	sll	$2,$8,16
	or	$3,$3,$2
	or	$3,$3,$10
	sll	$2,$9,8
	andi	$4,$5,0x7
	or	$2,$2,$3
	sll	$2,$2,$4
	addu	$3,$7,$14
	nor	$5,$0,$2
	sra	$5,$5,31
	lbu	$4,0($3)
	xor	$2,$2,$5
	subu	$3,$0,$11
	srl	$2,$2,$3
	addu	$6,$4,$15
	lbu	$3,0($6)
	xor	$2,$2,$5
	subu	$2,$2,$5
	mul	$2,$2,$3
	addiu	$7,$7,1
	sll	$4,$4,1
	addu	$4,$4,$19
	slt	$3,$7,64
	.set	noreorder
	.set	nomacro
	bne	$3,$0,$L450
	sh	$2,0($4)
	.set	macro
	.set	reorder

$L322:
	addiu	$22,$22,1
$L476:
	li	$2,6			# 0x6
	.set	noreorder
	.set	nomacro
	bne	$22,$2,$L309
	addiu	$19,$19,128
	.set	macro
	.set	reorder

	lw	$3,3136($21)
	lhu	$2,4608($21)
	sra	$22,$3,1
	lw	$3,6176($sp)
	addiu	$2,$2,8192
	mtlo	$3
	lw	$3,6172($sp)
	sh	$2,4608($21)
	madd	$22,$3
	move	$4,$20
	mflo	$5
	lw	$fp,3120($21)
	sll	$5,$5,1
	.set	noreorder
	.set	nomacro
	jal	idct
	sw	$5,6208($sp)
	.set	macro
	.set	reorder

	lhu	$2,4736($21)
	lw	$4,6232($sp)
	addiu	$2,$2,8192
	.set	noreorder
	.set	nomacro
	jal	idct
	sh	$2,4736($21)
	.set	macro
	.set	reorder

	lhu	$2,4864($21)
	lw	$4,6240($sp)
	addiu	$2,$2,8192
	.set	noreorder
	.set	nomacro
	jal	idct
	sh	$2,4864($21)
	.set	macro
	.set	reorder

	lhu	$2,4992($21)
	lw	$4,6244($sp)
	addiu	$2,$2,8192
	.set	noreorder
	.set	nomacro
	jal	idct
	sh	$2,4992($21)
	.set	macro
	.set	reorder

	lw	$3,0($21)
	lw	$2,12($3)
	andi	$2,$2,0x2000
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L494
	lw	$4,6208($sp)
	.set	macro
	.set	reorder

	addiu	$18,$21,5120
	li	$19,4			# 0x4
	li	$23,6			# 0x6
$L331:
	move	$4,$18
	.set	noreorder
	.set	nomacro
	jal	idct
	addiu	$19,$19,1
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	bne	$19,$23,$L331
	addiu	$18,$18,128
	.set	macro
	.set	reorder

	lw	$4,6208($sp)
$L494:
	sll	$2,$22,1
	addu	$24,$fp,$4
	addu	$19,$24,$2
	addiu	$25,$20,512
	addiu	$23,$20,640
	sll	$22,$22,2
	move	$18,$0
$L332:
	sll	$3,$18,4
	sra	$2,$18,2
	sll	$15,$2,1
	addu	$13,$23,$3
	andi	$14,$18,0x3
	addu	$12,$25,$3
	move	$11,$19
	move	$10,$24
	move	$9,$0
$L333:
	sra	$5,$9,2
	addu	$5,$15,$5
	sll	$5,$5,2
	addu	$5,$5,$14
	andi	$2,$9,0x3
	sll	$5,$5,3
	addu	$5,$5,$2
	lh	$6,0($12)
	lh	$8,0($13)
	sll	$5,$5,2
	addu	$5,$5,$20
	lh	$4,0($5)
	addu	$7,$6,$8
	sra	$7,$7,1
	andi	$7,$7,0xffff
	andi	$2,$4,0xffff
	andi	$8,$8,0xffff
	sll	$6,$6,1
	subu	$3,$2,$7
	addu	$4,$6,$4
	addu	$2,$2,$8
	andi	$3,$3,0xfc
	sll	$3,$3,3
	sra	$4,$4,3
	andi	$2,$2,0xf8
	addu	$4,$4,$3
	sll	$2,$2,8
	addu	$4,$4,$2
	sh	$4,0($10)
	lh	$3,2($5)
	addiu	$9,$9,1
	andi	$2,$3,0xffff
	subu	$4,$2,$7
	addu	$3,$6,$3
	addu	$2,$8,$2
	andi	$4,$4,0xfc
	sll	$4,$4,3
	sra	$3,$3,3
	andi	$2,$2,0xf8
	addu	$3,$3,$4
	sll	$2,$2,8
	addu	$3,$3,$2
	sh	$3,2($10)
	lh	$2,16($5)
	addiu	$10,$10,4
	andi	$3,$2,0xffff
	subu	$4,$3,$7
	addu	$2,$6,$2
	addu	$3,$8,$3
	andi	$4,$4,0xfc
	sra	$2,$2,3
	sll	$4,$4,3
	andi	$3,$3,0xf8
	sll	$3,$3,8
	addu	$2,$2,$4
	addu	$2,$2,$3
	sh	$2,0($11)
	lh	$3,18($5)
	addiu	$12,$12,2
	andi	$2,$3,0xffff
	subu	$7,$2,$7
	addu	$8,$8,$2
	addu	$6,$6,$3
	andi	$7,$7,0xfc
	sra	$6,$6,3
	sll	$7,$7,3
	andi	$8,$8,0xf8
	addu	$6,$6,$7
	sll	$8,$8,8
	addu	$6,$6,$8
	li	$2,8			# 0x8
	sh	$6,2($11)
	addiu	$13,$13,2
	.set	noreorder
	.set	nomacro
	bne	$9,$2,$L333
	addiu	$11,$11,4
	.set	macro
	.set	reorder

	addiu	$18,$18,1
	.set	noreorder
	.set	nomacro
	beq	$18,$9,$L472
	addu	$19,$19,$22
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	j	$L332
	addu	$24,$24,$22
	.set	macro
	.set	reorder

$L469:
	lw	$4,0($21)
	lui	$6,%hi($LC17)
	addiu	$6,$6,%lo($LC17)
	.set	noreorder
	.set	nomacro
	jal	av_log
	move	$5,$0
	.set	macro
	.set	reorder

	lw	$12,4588($21)
	.set	noreorder
	.set	nomacro
	beq	$18,$0,$L473
	lw	$13,0($16)
	.set	macro
	.set	reorder

$L315:
	lw	$6,8($17)
	lw	$2,0($17)
	sra	$4,$6,3
	addu	$4,$4,$2
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$7,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$7
	sll	$2,$2,8
	andi	$4,$6,0x7
	or	$2,$2,$3
	sll	$2,$2,$4
	nor	$3,$0,$2
	sra	$3,$3,31
	xor	$2,$2,$3
	subu	$4,$0,$18
	srl	$2,$2,$4
	xor	$2,$2,$3
	subu	$2,$2,$3
	addu	$6,$18,$6
	sll	$3,$2,4
	.set	noreorder
	.set	nomacro
	j	$L317
	sw	$6,8($17)
	.set	macro
	.set	reorder

$L471:
	.set	noreorder
	.set	nomacro
	j	$L450
	addiu	$7,$7,16
	.set	macro
	.set	reorder

$L470:
	addiu	$10,$10,9
	sra	$4,$10,3
	addu	$4,$13,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$10,0x7
	sll	$2,$2,$4
	srl	$2,$2,$9
	addu	$2,$2,$8
	sll	$2,$2,2
	addu	$2,$12,$2
	subu	$3,$0,$9
	lh	$9,2($2)
	.set	noreorder
	.set	nomacro
	bgez	$9,$L319
	lh	$8,0($2)
	.set	macro
	.set	reorder

	addu	$10,$10,$3
	sra	$4,$10,3
	addu	$4,$13,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$10,0x7
	sll	$2,$2,$4
	srl	$2,$2,$9
	addu	$2,$2,$8
	sll	$2,$2,2
	addu	$2,$12,$2
	lh	$9,2($2)
	.set	noreorder
	.set	nomacro
	j	$L319
	lh	$8,0($2)
	.set	macro
	.set	reorder

$L389:
	lw	$4,0($21)
	lui	$6,%hi($LC18)
	addiu	$6,$6,%lo($LC18)
	.set	noreorder
	.set	nomacro
	jal	av_log
	move	$5,$0
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	j	$L476
	addiu	$22,$22,1
	.set	macro
	.set	reorder

$L468:
	addiu	$8,$8,9
	sra	$4,$8,3
	addu	$4,$13,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$8,0x7
	sll	$2,$2,$4
	srl	$2,$2,$7
	addu	$2,$2,$18
	sll	$2,$2,2
	addu	$2,$12,$2
	subu	$3,$0,$7
	lh	$7,2($2)
	.set	noreorder
	.set	nomacro
	bgez	$7,$L310
	lh	$18,0($2)
	.set	macro
	.set	reorder

	addu	$8,$8,$3
	sra	$4,$8,3
	addu	$4,$13,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$8,0x7
	sll	$2,$2,$4
	srl	$2,$2,$7
	addu	$2,$2,$18
	sll	$2,$2,2
	addu	$2,$12,$2
	lh	$7,2($2)
	.set	noreorder
	.set	nomacro
	j	$L310
	lh	$18,0($2)
	.set	macro
	.set	reorder

$L472:
	lw	$5,6176($sp)
	lw	$7,6216($sp)
	addiu	$5,$5,16
	slt	$2,$5,$7
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L308
	sw	$5,6176($sp)
	.set	macro
	.set	reorder

$L337:
	lw	$2,6172($sp)
	lw	$3,6220($sp)
	addiu	$2,$2,16
	sw	$2,6172($sp)
	slt	$2,$2,$3
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L495
	lw	$4,6216($sp)
	.set	macro
	.set	reorder

$L304:
	lw	$8,8($16)
	lw	$10,0($16)
	sra	$4,$8,3
	addu	$4,$10,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$8,0x7
	sll	$2,$2,$4
	srl	$2,$2,23
	lw	$11,4588($21)
	sll	$2,$2,2
	addu	$2,$11,$2
	lh	$7,2($2)
	.set	noreorder
	.set	nomacro
	bltz	$7,$L474
	lh	$9,0($2)
	.set	macro
	.set	reorder

$L338:
	addu	$2,$8,$7
	li	$3,256			# 0x100
	.set	noreorder
	.set	nomacro
	beq	$9,$3,$L217
	sw	$2,8($16)
	.set	macro
	.set	reorder

	lw	$4,0($21)
	lui	$6,%hi($LC19)
	addiu	$6,$6,%lo($LC19)
	.set	noreorder
	.set	nomacro
	jal	av_log
	move	$5,$0
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	j	$L477
	lw	$7,6236($sp)
	.set	macro
	.set	reorder

$L267:
	li	$2,-1
	sb	$2,6($5)
	sb	$2,4($5)
	.set	noreorder
	.set	nomacro
	j	$L264
	sb	$2,5($5)
	.set	macro
	.set	reorder

$L474:
	addiu	$8,$8,9
	sra	$4,$8,3
	addu	$4,$10,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$8,0x7
	sll	$2,$2,$4
	srl	$2,$2,$7
	addu	$2,$2,$9
	sll	$2,$2,2
	addu	$2,$11,$2
	subu	$3,$0,$7
	lh	$7,2($2)
	.set	noreorder
	.set	nomacro
	bgez	$7,$L338
	lh	$9,0($2)
	.set	macro
	.set	reorder

	addu	$8,$8,$3
	sra	$4,$8,3
	addu	$4,$10,$4
	lbu	$3,0($4)
	lbu	$5,1($4)
	lbu	$6,3($4)
	lbu	$2,2($4)
	sll	$3,$3,24
	sll	$5,$5,16
	or	$3,$3,$5
	or	$3,$3,$6
	sll	$2,$2,8
	or	$2,$2,$3
	andi	$4,$8,0x7
	sll	$2,$2,$4
	srl	$2,$2,$7
	addu	$2,$2,$9
	sll	$2,$2,2
	addu	$2,$11,$2
	lh	$7,2($2)
	.set	noreorder
	.set	nomacro
	j	$L338
	lh	$9,0($2)
	.set	macro
	.set	reorder

$L300:
	move	$7,$0
	move	$2,$0
	.set	noreorder
	.set	nomacro
	j	$L303
	move	$3,$0
	.set	macro
	.set	reorder

$L296:
	move	$2,$0
	move	$4,$0
	.set	noreorder
	.set	nomacro
	j	$L299
	move	$5,$0
	.set	macro
	.set	reorder

$L252:
	sb	$0,6($5)
	sb	$0,4($5)
	.set	noreorder
	.set	nomacro
	j	$L249
	sb	$0,5($5)
	.set	macro
	.set	reorder

$L358:
	lw	$4,5376($21)
	.set	noreorder
	.set	nomacro
	jal	av_fast_realloc
	addiu	$6,$23,8
	.set	macro
	.set	reorder

	lw	$5,6168($sp)
	lw	$7,6204($sp)
	lw	$3,2816($21)
	addu	$16,$5,$7
	move	$4,$2
	sw	$2,5376($21)
	move	$5,$16
	.set	noreorder
	.set	nomacro
	jal	$3
	srl	$6,$23,2
	.set	macro
	.set	reorder

	sll	$2,$23,3
	sra	$4,$2,3
	addiu	$8,$21,3536
	.set	noreorder
	.set	nomacro
	bltz	$4,$L359
	lw	$3,5376($21)
	.set	macro
	.set	reorder

	bltz	$2,$L359
	addu	$5,$3,$4
$L362:
	sw	$2,12($8)
	sw	$0,8($8)
	lw	$2,5384($21)
	addu	$4,$16,$23
	addu	$7,$4,$fp
	sw	$3,0($8)
	slt	$2,$2,2
	lui	$3,%hi(mv)
	sw	$5,4($8)
	sw	$4,3556($21)
	sw	$7,3552($21)
	addiu	$6,$3,%lo(mv)
	move	$7,$21
	move	$5,$0
	lw	$9,3136($21)
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L363
	li	$10,256			# 0x100
	.set	macro
	.set	reorder

$L444:
	lb	$2,1($6)
	lb	$4,0($6)
	mul	$2,$2,$9
	addiu	$5,$5,1
	srl	$3,$2,31
	addu	$3,$3,$2
	sra	$3,$3,1
	addu	$4,$4,$3
	sw	$4,3560($7)
	addiu	$6,$6,2
	.set	noreorder
	.set	nomacro
	bne	$5,$10,$L444
	addiu	$7,$7,4
	.set	macro
	.set	reorder

$L441:
	lw	$2,6192($sp)
$L478:
	.set	noreorder
	.set	nomacro
	blez	$2,$L368
	lw	$3,6196($sp)
	.set	macro
	.set	reorder

	move	$20,$17
	move	$22,$18
	sll	$16,$3,4
	sw	$0,6184($sp)
$L370:
	lw	$7,6188($sp)
	.set	noreorder
	.set	nomacro
	blez	$7,$L496
	lw	$4,6184($sp)
	.set	macro
	.set	reorder

	move	$19,$22
	move	$18,$20
	move	$17,$0
$L371:
	li	$2,3			# 0x3
	sw	$2,16($sp)
	lw	$2,6196($sp)
	move	$5,$19
	move	$6,$18
	move	$4,$21
	li	$7,3			# 0x3
	sw	$2,20($sp)
	.set	noreorder
	.set	nomacro
	jal	decode_p_block
	sw	$8,6248($sp)
	.set	macro
	.set	reorder

	lw	$3,6188($sp)
	addiu	$17,$17,8
	slt	$2,$17,$3
	addiu	$19,$19,16
	addiu	$18,$18,16
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L371
	lw	$8,6248($sp)
	.set	macro
	.set	reorder

	lw	$4,6184($sp)
$L496:
	lw	$5,6192($sp)
	addiu	$4,$4,8
	slt	$2,$4,$5
	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L368
	sw	$4,6184($sp)
	.set	macro
	.set	reorder

	addu	$20,$20,$16
	.set	noreorder
	.set	nomacro
	j	$L370
	addu	$22,$22,$16
	.set	macro
	.set	reorder

$L363:
	sra	$2,$5,4
	addiu	$2,$2,-8
	mul	$2,$2,$9
	andi	$4,$5,0xf
	srl	$3,$2,31
	addu	$3,$3,$2
	sra	$3,$3,1
	addu	$4,$4,$3
	addiu	$4,$4,-8
	addiu	$5,$5,1
	sw	$4,3560($7)
	.set	noreorder
	.set	nomacro
	beq	$5,$10,$L441
	addiu	$7,$7,4
	.set	macro
	.set	reorder

	sra	$2,$5,4
	addiu	$2,$2,-8
	mul	$2,$2,$9
	andi	$4,$5,0xf
	srl	$3,$2,31
	addu	$3,$3,$2
	sra	$3,$3,1
	addu	$4,$4,$3
	addiu	$4,$4,-8
	addiu	$5,$5,1
	sw	$4,3560($7)
	.set	noreorder
	.set	nomacro
	bne	$5,$10,$L363
	addiu	$7,$7,4
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	j	$L478
	lw	$2,6192($sp)
	.set	macro
	.set	reorder

$L359:
	move	$2,$0
	move	$3,$0
	.set	noreorder
	.set	nomacro
	j	$L362
	move	$5,$0
	.set	macro
	.set	reorder

$L368:
	lw	$2,8($8)
	addiu	$3,$2,31
	slt	$4,$3,0
	addiu	$2,$2,62
	movn	$3,$2,$4
	sra	$3,$3,5
	sll	$8,$3,2
	.set	noreorder
	.set	nomacro
	beq	$23,$8,$L376
	lw	$3,6204($sp)
	.set	macro
	.set	reorder

	lw	$4,6200($sp)
	addu	$2,$23,$3
	addu	$6,$fp,$2
	lw	$7,3552($21)
	addu	$5,$4,$6
	lw	$3,6168($sp)
$L497:
	lw	$4,0($21)
	subu	$2,$7,$3
	addiu	$2,$2,3
	li	$3,-4			# 0xfffffffffffffffc
	and	$2,$2,$3
	subu	$2,$5,$2