mmf.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 1,031 行

	.file	1 "mmf.c"
	.section .mdebug.abi32
	.previous
	.section	.text.mmf_probe,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_probe
	.type	mmf_probe, @function
mmf_probe:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lw	$4,4($4)
	li	$2,77			# 0x4d
	lbu	$3,0($4)
	beq	$3,$2,$L14
	nop

$L2:
	j	$31
	move	$2,$0

$L14:
	lbu	$5,1($4)
	bne	$5,$3,$L2
	nop

	lbu	$2,2($4)
	bne	$2,$5,$L2
	nop

	lbu	$3,3($4)
	li	$2,68			# 0x44
	bne	$3,$2,$L2
	nop

	lbu	$3,8($4)
	li	$2,67			# 0x43
	bne	$3,$2,$L2
	nop

	lbu	$3,9($4)
	li	$2,78			# 0x4e
	bne	$3,$2,$L2
	nop

	lbu	$3,10($4)
	li	$2,84			# 0x54
	bne	$3,$2,$L2
	nop

	lbu	$3,11($4)
	li	$2,73			# 0x49
	bne	$3,$2,$L2
	nop

	j	$31
	li	$2,100			# 0x64

	.set	macro
	.set	reorder
	.end	mmf_probe
	.section	.text.mmf_read_close,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_read_close
	.type	mmf_read_close, @function
mmf_read_close:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	j	$31
	move	$2,$0

	.set	macro
	.set	reorder
	.end	mmf_read_close
	.section	.text.mmf_write_packet,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_write_packet
	.type	mmf_write_packet, @function
mmf_write_packet:
	.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
	.mask	0x80000000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$31,16($sp)
	lw	$6,20($5)
	lw	$5,16($5)
	jal	put_buffer
	addiu	$4,$4,16

	lw	$31,16($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,24

	.set	macro
	.set	reorder
	.end	mmf_write_packet
	.section	.text.mmf_read_seek,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_read_seek
	.type	mmf_read_seek, @function
mmf_read_seek:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	j	pcm_read_seek
	nop

	.set	macro
	.set	reorder
	.end	mmf_read_seek
	.section	.text.mmf_read_packet,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_read_packet
	.type	mmf_read_packet, @function
mmf_read_packet:
	.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
	.mask	0x80070000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-32
	sw	$16,16($sp)
	addiu	$16,$4,16
	sw	$18,24($sp)
	move	$2,$4
	sw	$31,28($sp)
	sw	$17,20($sp)
	move	$4,$16
	move	$18,$5
	jal	url_feof
	lw	$17,12($2)

	bne	$2,$0,$L22
	nop

	lw	$5,28($17)
	blez	$5,$L34
	lw	$4,24($17)

	li	$5,4096			# 0x1000
$L27:
$L39:
	jal	av_new_packet
	move	$4,$18

	beq	$2,$0,$L35
	nop

$L22:
	li	$16,-5			# 0xfffffffffffffffb
$L37:
	move	$2,$16
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,32

$L35:
	lw	$5,16($18)
	lw	$6,20($18)
	move	$4,$16
	jal	get_buffer
	sw	$0,24($18)

	bltz	$2,$L36
	move	$16,$2

$L29:
	lw	$6,24($17)
$L38:
	lw	$7,28($17)
	subu	$2,$6,$16
	sra	$5,$16,31
	sltu	$8,$6,$2
	subu	$3,$7,$5
	subu	$3,$3,$8
	sw	$2,24($17)
	sw	$3,28($17)
	sw	$16,20($18)
	move	$2,$16
	lw	$31,28($sp)
	lw	$18,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	j	$31
	addiu	$sp,$sp,32

$L34:
	bne	$5,$0,$L24
	sltu	$2,$4,4096

	beq	$2,$0,$L39
	li	$5,4096			# 0x1000

$L24:
	bne	$4,$0,$L27
	move	$5,$4

	j	$L37
	li	$16,-5			# 0xfffffffffffffffb

$L36:
	lw	$2,36($18)
	beq	$2,$0,$L29
	nop

	jal	$2
	move	$4,$18

	j	$L38
	lw	$6,24($17)

	.set	macro
	.set	reorder
	.end	mmf_read_packet
	.section	.rodata.str1.4,"aMS",@progbits,1
	.align	2
$LC0:
	.ascii	"MIDI like format found, unsupported\012\000"
	.align	2
$LC1:
	.ascii	"Unsupported SMAF chunk %08x\012\000"
	.align	2
$LC2:
	.ascii	"Invalid sample rate\012\000"
	.align	2
$LC3:
	.ascii	"Unexpected SMAF chunk %08x\012\000"
	.section	.text.mmf_read_header,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_read_header
	.type	mmf_read_header, @function
mmf_read_header:
	.frame	$sp,64,$31		# vars= 0, regs= 9/0, args= 24, gp= 0
	.mask	0x80ff0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$17,28($sp)
	addiu	$17,$4,16
	sw	$21,44($sp)
	sw	$31,56($sp)
	sw	$23,52($sp)
	sw	$22,48($sp)
	sw	$20,40($sp)
	sw	$19,36($sp)
	sw	$18,32($sp)
	sw	$16,24($sp)
	move	$21,$4
	move	$4,$17
	jal	get_le32
	lw	$23,12($21)

	li	$3,1145896960			# 0x444d0000
	ori	$3,$3,0x4d4d
	beq	$2,$3,$L66
	li	$2,-1			# 0xffffffffffffffff

$L43:
	lw	$31,56($sp)
	lw	$23,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	j	$31
	addiu	$sp,$sp,64

$L66:
	jal	get_be32
	move	$4,$17

	li	$3,1230241792			# 0x49540000
	li	$2,1094975488			# 0x41440000
	ori	$19,$3,0x4e43
	ori	$20,$2,0x504f
	j	$L44
	li	$18,1			# 0x1

$L45:
	move	$6,$2
$L70:
	move	$7,$0
	jal	url_fseek
	sw	$18,16($sp)

$L44:
	jal	get_le32
	move	$4,$17

	move	$16,$2
	jal	get_be32
	move	$4,$17

	beq	$16,$19,$L45
	move	$4,$17

	beq	$16,$20,$L70
	move	$6,$2

	li	$2,16711680			# 0xff0000
	li	$5,5373952			# 0x520000
	ori	$2,$2,0xffff
	and	$4,$16,$2
	ori	$3,$5,0x544d
	beq	$4,$3,$L67
	lui	$6,%hi($LC0)

	ori	$2,$5,0x5441
	bne	$4,$2,$L68
	lui	$6,%hi($LC1)

	jal	get_byte
	move	$4,$17

	jal	get_byte
	move	$4,$17

	jal	get_byte
	move	$4,$17

	andi	$3,$2,0xf
	sltu	$2,$3,5
	beq	$2,$0,$L52
	sll	$3,$3,2

	lui	$2,%hi(mmf_rates)
	addiu	$2,$2,%lo(mmf_rates)
	addu	$3,$3,$2
	lw	$22,0($3)
	bltz	$22,$L71
	lui	$6,%hi($LC2)

	jal	get_byte
	move	$4,$17

	jal	get_byte
	move	$4,$17

	jal	get_byte
	move	$4,$17

	li	$3,1903362048			# 0x71730000
	li	$2,1232076800			# 0x49700000
	ori	$19,$3,0x7441
	ori	$20,$2,0x7341
	j	$L55
	li	$18,1			# 0x1

$L56:
	jal	url_fseek
	sw	$18,16($sp)

$L55:
	jal	get_le32
	move	$4,$17

	move	$4,$17
	jal	get_be32
	move	$16,$2

	move	$9,$0
	move	$4,$17
	move	$8,$2
	move	$6,$2
	beq	$16,$19,$L56
	move	$7,$9

	beq	$16,$20,$L56
	li	$3,16711680			# 0xff0000

	ori	$3,$3,0xffff
	li	$2,6356992			# 0x610000
	and	$3,$16,$3
	ori	$2,$2,0x7741
	beq	$3,$2,$L59
	move	$4,$21

	lui	$6,%hi($LC3)
	addiu	$6,$6,%lo($LC3)
	move	$7,$16
	jal	av_log
	move	$5,$0

	j	$L43
	li	$2,-1			# 0xffffffffffffffff

$L52:
	lui	$6,%hi($LC2)
$L71:
	move	$4,$21
	addiu	$6,$6,%lo($LC2)
	jal	av_log
	move	$5,$0

	j	$L43
	li	$2,-1			# 0xffffffffffffffff

$L59:
	sw	$8,24($23)
	sw	$9,28($23)
	jal	av_new_stream
	move	$5,$0

	beq	$2,$0,$L69
	move	$6,$2

	lw	$4,8($2)
	li	$2,65536			# 0x10000
	ori	$2,$2,0x100e
	li	$5,1			# 0x1
	sw	$2,228($4)
	sll	$3,$22,2
	li	$2,4			# 0x4
	sw	$5,68($4)
	sw	$2,392($4)
	sw	$5,224($4)
	sw	$3,4($4)
	sw	$22,64($4)
	move	$7,$22
	move	$4,$6
	li	$5,64			# 0x40
	jal	av_set_pts_info
	li	$6,1			# 0x1

	j	$L43
	move	$2,$0

$L68:
	move	$4,$21
	addiu	$6,$6,%lo($LC1)
	move	$7,$16
	jal	av_log
	move	$5,$0

	j	$L43
	li	$2,-1			# 0xffffffffffffffff

$L69:
	j	$L43
	li	$2,-12			# 0xfffffffffffffff4

$L67:
	move	$4,$21
	addiu	$6,$6,%lo($LC0)
	jal	av_log
	move	$5,$0

	j	$L43
	li	$2,-1			# 0xffffffffffffffff

	.set	macro
	.set	reorder
	.end	mmf_read_header
	.section	.rodata.str1.4
	.align	2
$LC4:
	.ascii	"Unsupported sample rate %d\012\000"
	.align	2
$LC5:
	.ascii	"MMMD\000"
	.align	2
$LC6:
	.ascii	"CNTI\000"
	.align	2
$LC7:
	.ascii	"VN:libavcodec,\000"
	.rdata
	.align	2
$LC8:
	.ascii	"ATR\000\000"
	.section	.rodata.str1.4
	.align	2
$LC9:
	.ascii	"Atsq\000"
	.rdata
	.align	2
$LC10:
	.ascii	"\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
	.ascii	"\000\000\000"
	.section	.rodata.str1.4
	.align	2
$LC11:
	.ascii	"Awa\001\000"
	.section	.text.mmf_write_header,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_write_header
	.type	mmf_write_header, @function
mmf_write_header:
	.frame	$sp,64,$31		# vars= 0, regs= 9/0, args= 24, gp= 0
	.mask	0x80ff0000,-8
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-64
	sw	$17,28($sp)
	sw	$31,56($sp)
	sw	$23,52($sp)
	sw	$22,48($sp)
	sw	$21,44($sp)
	sw	$20,40($sp)
	sw	$19,36($sp)
	sw	$18,32($sp)
	sw	$16,24($sp)
	lw	$2,100($4)
	move	$17,$4
	lw	$3,8($2)
	li	$2,4000			# 0xfa0
	lw	$7,64($3)
	beq	$7,$2,$L86
	lw	$22,12($4)

	li	$2,8000			# 0x1f40
	beq	$7,$2,$L87
	li	$2,11025			# 0x2b11

	beq	$7,$2,$L88
	li	$2,22050			# 0x5622

	beq	$7,$2,$L89
	li	$2,44100			# 0xac44

	beq	$7,$2,$L75
	li	$23,4			# 0x4

	lui	$6,%hi($LC4)
	addiu	$6,$6,%lo($LC4)
	jal	av_log
	move	$5,$0

	lw	$31,56($sp)
	lw	$23,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	li	$2,-1			# 0xffffffffffffffff
	j	$31
	addiu	$sp,$sp,64

$L86:
	move	$23,$0
$L75:
	addiu	$16,$17,16
	lui	$5,%hi($LC5)
	move	$4,$16
	jal	put_tag
	addiu	$5,$5,%lo($LC5)

	move	$4,$16
	jal	put_be32
	move	$5,$0

	lui	$5,%hi($LC6)
	move	$4,$16
	jal	start_tag
	addiu	$5,$5,%lo($LC6)

	move	$4,$16
	move	$5,$0
	move	$18,$2
	jal	put_byte
	move	$19,$3

	move	$4,$16
	jal	put_byte
	move	$5,$0

	move	$4,$16
	jal	put_byte
	move	$5,$0

	move	$4,$16
	jal	put_byte
	move	$5,$0

	move	$4,$16
	jal	put_byte
	move	$5,$0

	lui	$5,%hi($LC7)
	addiu	$5,$5,%lo($LC7)
	jal	put_tag
	move	$4,$16

	jal	url_ftell
	move	$4,$16

	addiu	$6,$18,-4
	move	$20,$2
	addiu	$7,$19,-1
	sltu	$2,$6,$18
	addu	$7,$2,$7
	move	$4,$16
	move	$21,$3
	jal	url_fseek
	sw	$0,16($sp)

	subu	$5,$20,$18
	jal	put_be32
	move	$4,$16

	move	$7,$21
	move	$6,$20
	move	$4,$16
	jal	url_fseek
	sw	$0,16($sp)

	lui	$5,%hi($LC8)
	li	$6,4			# 0x4
	move	$4,$16
	jal	put_buffer
	addiu	$5,$5,%lo($LC8)

	move	$4,$16
	jal	put_be32
	move	$5,$0

	jal	url_ftell
	move	$4,$16

	sw	$2,0($22)
	sw	$3,4($22)
	move	$4,$16
	jal	put_byte
	move	$5,$0

	move	$4,$16
	jal	put_byte
	move	$5,$0

	move	$4,$16
	jal	put_byte
	ori	$5,$23,0x10

	move	$4,$16
	jal	put_byte
	move	$5,$0

	move	$4,$16
	jal	put_byte
	li	$5,2			# 0x2

	move	$4,$16
	jal	put_byte
	li	$5,2			# 0x2

	lui	$5,%hi($LC9)
	move	$4,$16
	jal	put_tag
	addiu	$5,$5,%lo($LC9)

	move	$4,$16
	jal	put_be32
	li	$5,16			# 0x10

	jal	url_ftell
	move	$4,$16

	lui	$5,%hi($LC10)
	sw	$2,8($22)
	sw	$3,12($22)
	li	$6,16			# 0x10
	move	$4,$16
	jal	put_buffer
	addiu	$5,$5,%lo($LC10)

	lui	$5,%hi($LC11)
	move	$4,$16
	jal	start_tag
	addiu	$5,$5,%lo($LC11)

	lw	$4,100($17)
	sw	$2,16($22)
	lw	$2,8($4)
	sw	$3,20($22)
	lw	$7,64($2)
	li	$5,64			# 0x40
	jal	av_set_pts_info
	li	$6,1			# 0x1

	jal	put_flush_packet
	move	$4,$16

	lw	$31,56($sp)
	lw	$23,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,64

$L87:
	j	$L75
	li	$23,1			# 0x1

$L88:
	j	$L75
	li	$23,2			# 0x2

$L89:
	j	$L75
	li	$23,3			# 0x3

	.set	macro
	.set	reorder
	.end	mmf_write_header
	.globl	__divdi3
	.rdata
	.align	2
$LC12:
	.ascii	"\377\000\000"
	.align	2
$LC13:
	.ascii	"\000\000\000\000\000"
	.section	.text.mmf_write_trailer,"ax",@progbits
	.align	2
	.align	5
	.ent	mmf_write_trailer
	.type	mmf_write_trailer, @function
mmf_write_trailer:
	.frame	$sp,56,$31		# vars= 0, regs= 8/0, args= 24, gp= 0
	.mask	0x807f0000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-56
	sw	$22,48($sp)
	sw	$20,40($sp)
	sw	$31,52($sp)
	sw	$21,44($sp)
	sw	$19,36($sp)
	sw	$18,32($sp)
	sw	$17,28($sp)
	sw	$16,24($sp)
	addiu	$20,$4,16
	lw	$2,52($20)
	move	$22,$4
	beq	$2,$0,$L97
	lw	$21,12($4)

	lw	$31,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,56

$L97:
	lw	$16,16($21)
	lw	$17,20($21)
	jal	url_ftell
	move	$4,$20

	addiu	$6,$16,-4
	move	$18,$2
	addiu	$7,$17,-1
	sltu	$2,$6,$16
	addu	$7,$2,$7
	move	$4,$20
	move	$19,$3
	jal	url_fseek
	sw	$0,16($sp)

	subu	$5,$18,$16
	jal	put_be32
	move	$4,$20

	move	$6,$18
	move	$7,$19
	move	$4,$20
	jal	url_fseek
	sw	$0,16($sp)

	lw	$16,0($21)
	lw	$17,4($21)
	jal	url_ftell
	move	$4,$20

	addiu	$6,$16,-4
	move	$18,$2
	addiu	$7,$17,-1
	sltu	$2,$6,$16
	addu	$7,$2,$7
	move	$4,$20
	move	$19,$3
	jal	url_fseek
	sw	$0,16($sp)

	subu	$5,$18,$16
	jal	put_be32
	move	$4,$20

	move	$6,$18
	move	$7,$19
	move	$4,$20
	jal	url_fseek
	sw	$0,16($sp)

	jal	url_ftell
	move	$4,$20

	move	$16,$2
	li	$6,4			# 0x4
	move	$7,$0
	move	$4,$20
	move	$17,$3
	jal	url_fseek
	sw	$0,16($sp)

	addiu	$5,$16,-8
	jal	put_be32
	move	$4,$20

	move	$6,$16
	move	$7,$17
	move	$4,$20
	jal	url_fseek
	sw	$0,16($sp)

	jal	url_ftell
	move	$4,$20

	move	$18,$2
	lw	$2,16($21)
	move	$19,$3
	lw	$3,20($21)
	lw	$6,8($21)
	lw	$7,12($21)
	subu	$16,$18,$2
	sltu	$5,$18,$16
	subu	$17,$19,$3
	move	$4,$20
	subu	$17,$17,$5
	jal	url_fseek
	sw	$0,16($sp)

	move	$4,$20
	jal	put_byte
	move	$5,$0

	move	$4,$20
	jal	put_byte
	li	$5,1			# 0x1

	li	$2,500			# 0x1f4
	multu	$16,$2
	lw	$6,100($22)
	mfhi	$5
	lw	$3,8($6)
	mflo	$4
	mul	$6,$2,$17
	lw	$8,64($3)
	addu	$5,$6,$5
	sra	$7,$8,31
	jal	__divdi3
	move	$6,$8

	move	$16,$2
	move	$3,$2
	slt	$2,$2,128
	beq	$2,$0,$L93
	addiu	$17,$3,-128

	move	$4,$20
	jal	put_byte
	move	$5,$16

	move	$4,$20
	jal	put_byte
	move	$5,$16

	lui	$5,%hi($LC12)
$L98:
	move	$4,$20
	addiu	$5,$5,%lo($LC12)
	jal	put_buffer
	li	$6,2			# 0x2

	lui	$5,%hi($LC13)
	addiu	$5,$5,%lo($LC13)
	move	$4,$20
	jal	put_buffer
	li	$6,4			# 0x4

	move	$6,$18
	move	$7,$19
	move	$4,$20
	jal	url_fseek
	sw	$0,16($sp)

	jal	put_flush_packet
	move	$4,$20

	lw	$31,52($sp)
	lw	$22,48($sp)
	lw	$21,44($sp)
	lw	$20,40($sp)
	lw	$19,36($sp)
	lw	$18,32($sp)
	lw	$17,28($sp)
	lw	$16,24($sp)
	move	$2,$0
	j	$31
	addiu	$sp,$sp,56

$L93:
	sra	$16,$17,7
	ori	$16,$16,0x80
	andi	$17,$17,0x7f
	move	$4,$20
	jal	put_byte
	move	$5,$16

	move	$4,$20
	jal	put_byte
	move	$5,$17

	move	$4,$20
	jal	put_byte
	move	$5,$16

	move	$4,$20
	jal	put_byte
	move	$5,$17

	j	$L98
	lui	$5,%hi($LC12)

	.set	macro
	.set	reorder
	.end	mmf_write_trailer
	.globl	mmf_demuxer
	.section	.rodata.str1.4
	.align	2
$LC14:
	.ascii	"mmf\000"
	.align	2
$LC15:
	.ascii	"mmf format\000"
	.data
	.align	2
	.type	mmf_demuxer, @object
	.size	mmf_demuxer, 64
mmf_demuxer:
	.word	$LC14
	.word	$LC15
	.word	32
	.word	mmf_probe
	.word	mmf_read_header
	.word	mmf_read_packet
	.word	mmf_read_close
	.word	mmf_read_seek
	.space	32
	.globl	mmf_muxer
	.section	.rodata.str1.4
	.align	2
$LC16:
	.ascii	"application/vnd.smaf\000"
	.data
	.align	2
	.type	mmf_muxer, @object
	.size	mmf_muxer, 64
mmf_muxer:
	.word	$LC14
	.word	$LC15
	.word	$LC16
	.word	$LC14
	.word	32
	.word	69646
	.word	0
	.word	mmf_write_header
	.word	mmf_write_packet
	.word	mmf_write_trailer
	.space	24
	.rdata
	.align	2
	.type	mmf_rates, @object
	.size	mmf_rates, 20
mmf_rates:
	.word	4000
	.word	8000
	.word	11025
	.word	22050
	.word	44100
	.ident	"GCC: (GNU) 4.1.2"