decode.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 1,767 行 · 第 1/2 页

	lbu	$4,-1($2)
	addiu	$3,$3,%lo(mpeg2_seek_header)
	sb	$4,17052($16)
	li	$4,9			# 0x9
	j	$L94
	sw	$3,17028($16)

	.set	macro
	.set	reorder
	.end	mpeg2_parse_header
	.section	.text.mpeg2_parse,"ax",@progbits
	.align	2
	.align	5
	.globl	mpeg2_parse
	.ent	mpeg2_parse
	.type	mpeg2_parse, @function
mpeg2_parse:
	.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
	.mask	0x80010000,-4
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	addiu	$sp,$sp,-24
	sw	$16,16($sp)
	sw	$31,20($sp)
	lw	$2,17028($4)
	beq	$2,$0,$L166
	move	$16,$4

	jal	$2
	nop

	bltz	$2,$L166
	move	$5,$2

$L126:
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$5
	j	$31
	addiu	$sp,$sp,24

$L166:
	lbu	$10,17092($16)
	lbu	$9,17093($16)
$L176:
	lbu	$3,17052($16)
	subu	$2,$3,$10
	sltu	$2,$2,$9
	beq	$2,$0,$L177
	addiu	$2,$3,-1

	lw	$7,17048($16)
	lw	$3,17040($16)
	lw	$5,17584($16)
	lw	$4,17588($16)
	li	$2,1179648			# 0x120000
	ori	$2,$2,0xa800
	subu	$3,$3,$7
	addu	$9,$3,$2
	subu	$4,$4,$5
	slt	$2,$9,$4
	bne	$2,$0,$L128
	move	$6,$7

	beq	$4,$0,$L135
	move	$11,$0

	lw	$3,17020($16)
	move	$11,$4
	addu	$9,$5,$4
	li	$10,256			# 0x100
$L132:
	lbu	$2,0($5)
	addiu	$5,$5,1
	or	$7,$3,$2
	beq	$3,$10,$L178
	sltu	$8,$5,$9

	sb	$2,0($6)
	sll	$3,$7,8
	bne	$8,$0,$L132
	addiu	$6,$6,1

	lw	$7,17048($16)
	sw	$3,17020($16)
	sw	$5,17584($16)
$L135:
	lw	$2,17076($16)
	addu	$7,$7,$11
	addu	$2,$2,$4
	sw	$2,17076($16)
	sw	$7,17048($16)
	move	$5,$0
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$5
	j	$31
	addiu	$sp,$sp,24

$L177:
	sltu	$2,$2,175
	beq	$2,$0,$L147
	li	$2,179			# 0xb3

	lw	$3,17584($16)
	lw	$2,17588($16)
	subu	$8,$2,$3
	beq	$8,$0,$L149
	move	$11,$3

	lw	$4,17020($16)
	addu	$6,$3,$8
	li	$7,256			# 0x100
$L151:
	lbu	$2,0($3)
	addiu	$3,$3,1
	or	$2,$4,$2
	beq	$4,$7,$L179
	sltu	$5,$3,$6

	bne	$5,$0,$L151
	sll	$4,$2,8

	sw	$4,17020($16)
	sw	$3,17584($16)
$L149:
	lw	$2,17076($16)
	move	$5,$0
	addu	$2,$2,$8
	sw	$2,17076($16)
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$5
	j	$31
	addiu	$sp,$sp,24

$L128:
	beq	$9,$0,$L139
	nop

	lw	$2,17020($16)
	addu	$8,$5,$9
	li	$10,256			# 0x100
$L141:
	lbu	$3,0($5)
	addiu	$5,$5,1
	or	$4,$2,$3
	beq	$2,$10,$L180
	sltu	$7,$5,$8

	sb	$3,0($6)
	sll	$2,$4,8
	bne	$7,$0,$L141
	addiu	$6,$6,1

	sw	$2,17020($16)
	sw	$5,17584($16)
$L139:
	lw	$3,17076($16)
	lui	$2,%hi(seek_chunk)
	addiu	$2,$2,%lo(seek_chunk)
	addu	$3,$3,$9
	sw	$2,17028($16)
	sw	$3,17076($16)
	li	$5,9			# 0x9
	lw	$31,20($sp)
	lw	$16,16($sp)
	move	$2,$5
	j	$31
	addiu	$sp,$sp,24

$L179:
	li	$2,-256			# 0xffffffffffffff00
	subu	$4,$3,$11
	sw	$2,17020($16)
	beq	$4,$0,$L149
	sw	$3,17584($16)

	lw	$2,17076($16)
	addu	$2,$2,$4
	sw	$2,17076($16)
	lbu	$3,-1($3)
	j	$L176
	sb	$3,17052($16)

$L180:
	lw	$3,17584($16)
	addiu	$7,$6,1
	li	$2,-256			# 0xffffffffffffff00
	subu	$3,$5,$3
	sw	$2,17020($16)
	sw	$7,17048($16)
	beq	$3,$0,$L139
	sw	$5,17584($16)

$L136:
	lw	$2,17076($16)
	lbu	$5,17052($16)
	addu	$2,$2,$3
	lw	$6,17044($16)
	sw	$2,17076($16)
	jal	mpeg2_slice
	move	$4,$16

	lw	$2,17584($16)
	lw	$4,17044($16)
	lbu	$3,-1($2)
	lbu	$10,17092($16)
	lbu	$9,17093($16)
	sb	$3,17052($16)
	j	$L176
	sw	$4,17048($16)

$L178:
	lw	$3,17584($16)
	addiu	$7,$6,1
	li	$2,-256			# 0xffffffffffffff00
	subu	$3,$5,$3
	sw	$2,17020($16)
	sw	$7,17048($16)
	bne	$3,$0,$L136
	sw	$5,17584($16)

	j	$L135
	lw	$7,17048($16)

$L147:
	beq	$3,$2,$L158
	sltu	$2,$3,180

	beq	$2,$0,$L160
	li	$2,183			# 0xb7

	bne	$3,$0,$L181
	lui	$2,%hi(seek_chunk)

	lui	$2,%hi(mpeg2_header_picture_start)
	lw	$5,17032($16)
	addiu	$2,$2,%lo(mpeg2_header_picture_start)
	j	$L126
	sw	$2,17028($16)

$L156:
$L181:
	addiu	$2,$2,%lo(seek_chunk)
	li	$5,9			# 0x9
	j	$L126
	sw	$2,17028($16)

$L160:
	beq	$3,$2,$L159
	li	$2,184			# 0xb8

	bne	$3,$2,$L156
	lui	$2,%hi(seek_chunk)

$L158:
	lui	$2,%hi(mpeg2_parse_header)
	addiu	$2,$2,%lo(mpeg2_parse_header)
	sw	$2,17028($16)
$L161:
	lw	$2,17032($16)
	li	$5,7			# 0x7
	xori	$2,$2,0x7
	li	$3,9			# 0x9
	j	$L126
	movn	$5,$3,$2

$L159:
	lui	$2,%hi(mpeg2_header_end)
	addiu	$2,$2,%lo(mpeg2_header_end)
	j	$L161
	sw	$2,17028($16)

	.set	macro
	.set	reorder
	.end	mpeg2_parse
	.section	.text.mpeg2_seek_header,"ax",@progbits
	.align	2
	.align	5
	.globl	mpeg2_seek_header
	.ent	mpeg2_seek_header
	.type	mpeg2_seek_header, @function
mpeg2_seek_header:
	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
	.mask	0x00000000,0
	.fmask	0x00000000,0
	.set	noreorder
	.set	nomacro
	
	lbu	$5,17052($4)
	li	$2,179			# 0xb3
	beq	$5,$2,$L183
	move	$3,$5

	li	$11,-1			# 0xffffffffffffffff
	li	$12,179			# 0xb3
$L184:
	addiu	$2,$3,73
	andi	$2,$2,0x00ff
	sltu	$2,$2,2
	bne	$2,$0,$L194
	nop

	bne	$3,$0,$L185
	nop

$L194:
	lw	$2,17160($4)
	bne	$2,$11,$L199
	nop

$L185:
	lw	$3,17584($4)
	lw	$2,17588($4)
	subu	$9,$2,$3
	beq	$9,$0,$L186
	move	$10,$3

	lw	$5,17020($4)
	addu	$7,$3,$9
	li	$8,256			# 0x100
$L188:
	lbu	$2,0($3)
	addiu	$3,$3,1
	or	$2,$5,$2
	beq	$5,$8,$L203
	sltu	$6,$3,$7

	bne	$6,$0,$L188
	sll	$5,$2,8

	sw	$5,17020($4)
	sw	$3,17584($4)
$L186:
	lw	$3,17076($4)
	move	$2,$0
	addu	$3,$3,$9
	j	$31
	sw	$3,17076($4)

$L203:
	li	$2,-256			# 0xffffffffffffff00
	subu	$5,$3,$10
	sw	$2,17020($4)
	beq	$5,$0,$L186
	sw	$3,17584($4)

	lw	$2,17076($4)
	addu	$2,$2,$5
	sw	$2,17076($4)
	lbu	$3,-1($3)
	bne	$3,$12,$L184
	sb	$3,17052($4)

$L199:
	lbu	$5,17052($4)
$L183:
	lw	$2,17040($4)
	sw	$0,17096($4)
	sw	$2,17044($4)
	beq	$5,$0,$L196
	sw	$2,17048($4)

	j	mpeg2_parse_header
	nop

$L196:
	j	mpeg2_header_picture_start
	nop

	.set	macro
	.set	reorder
	.end	mpeg2_seek_header
	.section	.text.mpeg2_init,"ax",@progbits
	.align	2
	.align	5
	.globl	mpeg2_init
	.ent	mpeg2_init
	.type	mpeg2_init, @function
mpeg2_init:
	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
	.mask	0x80030000,-8
	.fmask	0x00000000,0
	addiu	$sp,$sp,-32
	sw	$16,16($sp)
	lui	$16,%hi(mpeg2_accels)
	sw	$31,24($sp)
	sw	$17,20($sp)
	.set	noreorder
	.set	nomacro
	jal	mpeg2_detect_accel
	sw	$0,%lo(mpeg2_accels)($16)
	.set	macro
	.set	reorder

	li	$3,-2147483648			# 0xffffffff80000000
	or	$17,$2,$3
	move	$4,$17
	.set	noreorder
	.set	nomacro
	jal	mpeg2_cpu_state_init
	sw	$17,%lo(mpeg2_accels)($16)
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	jal	mpeg2_idct_init
	move	$4,$17
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	jal	mpeg2_mc_init
	move	$4,$17
	.set	macro
	.set	reorder

	li	$4,18128			# 0x46d0
	.set	noreorder
	.set	nomacro
	jal	mpeg2_malloc
	move	$5,$0
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L251
	move	$16,$2
	.set	macro
	.set	reorder

	addiu	$4,$2,208
	move	$17,$2
	li	$3,4			# 0x4
	andi	$2,$4,0x3
	subu	$3,$3,$2
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L210
	addiu	$6,$16,336
	.set	macro
	.set	reorder

	li	$2,3			# 0x3
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L211
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	beq	$3,$2,$L252
$L208:
	addiu	$5,$4,-4
	move	$2,$0
#APP
	S32I2M xr1,$2
#NO_APP
	andi	$3,$4,0x1f
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L256
	addiu	$2,$6,-31
	.set	macro
	.set	reorder

	li	$2,-32			# 0xffffffffffffffe0
	and	$2,$5,$2
	addiu	$4,$2,32
	sltu	$3,$5,$4
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L256
	addiu	$2,$6,-31
	.set	macro
	.set	reorder

$L239:
#APP
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$4
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L239
	addiu	$2,$6,-31
	.set	macro
	.set	reorder

$L256:
	li	$3,-32			# 0xffffffffffffffe0
	and	$3,$2,$3
	sltu	$4,$5,$3
	.set	noreorder
	.set	nomacro
	beq	$4,$0,$L257
	addiu	$2,$6,-4
	.set	macro
	.set	reorder

	addiu	$2,$5,4
$L258:
#APP
	pref 30,0($2)
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$3
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L258
	addiu	$2,$5,4
	.set	macro
	.set	reorder

	addiu	$2,$6,-4
$L257:
	li	$3,-4			# 0xfffffffffffffffc
	and	$3,$2,$3
	sltu	$4,$5,$3
	beq	$4,$0,$L217
$L241:
#APP
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$3
	bne	$2,$0,$L241
$L217:
	andi	$3,$6,0x3
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L221
	addiu	$4,$5,4
	.set	macro
	.set	reorder

	li	$2,3			# 0x3
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L222
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	beq	$3,$2,$L253
$L219:
	addiu	$4,$16,17605
	andi	$2,$4,0x3
	li	$3,4			# 0x4
	subu	$3,$3,$2
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L225
	addiu	$6,$16,17861
	.set	macro
	.set	reorder

	li	$2,3			# 0x3
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L226
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	beq	$3,$2,$L254
$L223:
	addiu	$5,$4,-4
	move	$2,$0
#APP
	S32I2M xr1,$2
#NO_APP
	andi	$3,$4,0x1f
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L259
	addiu	$2,$6,-31
	.set	macro
	.set	reorder

	li	$2,-32			# 0xffffffffffffffe0
	and	$2,$5,$2
	addiu	$4,$2,32
	sltu	$3,$5,$4
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L259
	addiu	$2,$6,-31
	.set	macro
	.set	reorder

$L242:
#APP
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$4
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L242
	addiu	$2,$6,-31
	.set	macro
	.set	reorder

$L259:
	li	$3,-32			# 0xffffffffffffffe0
	and	$3,$2,$3
	sltu	$4,$5,$3
	.set	noreorder
	.set	nomacro
	beq	$4,$0,$L260
	addiu	$2,$6,-4
	.set	macro
	.set	reorder

	addiu	$2,$5,4
$L261:
#APP
	pref 30,0($2)
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$3
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L261
	addiu	$2,$5,4
	.set	macro
	.set	reorder

	addiu	$2,$6,-4
$L260:
	li	$3,-4			# 0xfffffffffffffffc
	and	$3,$2,$3
	sltu	$4,$5,$3
	beq	$4,$0,$L232
$L244:
#APP
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$3
	bne	$2,$0,$L244
$L232:
	andi	$3,$6,0x3
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L236
	addiu	$4,$5,4
	.set	macro
	.set	reorder

	li	$2,3			# 0x3
	.set	noreorder
	.set	nomacro
	beq	$3,$2,$L237
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	beq	$3,$2,$L255
$L234:
	li	$4,1179648			# 0x120000
	li	$5,1			# 0x1
	.set	noreorder
	.set	nomacro
	jal	mpeg2_malloc
	ori	$4,$4,0xa804
	.set	macro
	.set	reorder

	sw	$2,17040($16)
	li	$2,-1			# 0xffffffffffffffff
	sw	$2,17160($16)
	lui	$2,%hi(mpeg2_seek_header)
	li	$3,-256			# 0xffffffffffffff00
	addiu	$2,$2,%lo(mpeg2_seek_header)
	sw	$3,17020($16)
	sw	$2,17028($16)
	li	$3,9			# 0x9
	li	$2,1			# 0x1
	li	$4,-76
	sw	$2,17080($16)
	sb	$4,17052($16)
	sw	$3,17032($16)
	addiu	$4,$16,16976
	sw	$0,17588($16)
	sw	$0,17584($16)
	.set	noreorder
	.set	nomacro
	jal	mpeg2_reset_info
	sw	$0,17072($16)
	.set	macro
	.set	reorder

	sw	$0,16980($16)
	sw	$0,17012($16)
	sw	$0,17016($16)
	sw	$0,16976($16)
	.set	noreorder
	.set	nomacro
	jal	mpeg2_header_state_init
	move	$4,$16
	.set	macro
	.set	reorder

	move	$2,$17
	lw	$31,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	.set	noreorder
	.set	nomacro
	j	$31
	addiu	$sp,$sp,32
	.set	macro
	.set	reorder

$L225:
	addiu	$4,$16,17607
	sb	$0,17605($16)
	.set	noreorder
	.set	nomacro
	j	$L223
	sb	$0,17606($16)
	.set	macro
	.set	reorder

$L210:
	addiu	$4,$16,210
	sb	$0,208($16)
	.set	noreorder
	.set	nomacro
	j	$L208
	sb	$0,209($16)
	.set	macro
	.set	reorder

$L221:
	sb	$0,4($5)
	.set	noreorder
	.set	nomacro
	j	$L219
	sb	$0,1($4)
	.set	macro
	.set	reorder

$L236:
	sb	$0,4($5)
	.set	noreorder
	.set	nomacro
	j	$L234
	sb	$0,1($4)
	.set	macro
	.set	reorder

$L211:
	addiu	$4,$16,211
	sb	$0,208($16)
	sb	$0,209($16)
	.set	noreorder
	.set	nomacro
	j	$L208
	sb	$0,210($16)
	.set	macro
	.set	reorder

$L237:
	sb	$0,6($5)
	sb	$0,4($5)
	.set	noreorder
	.set	nomacro
	j	$L234
	sb	$0,5($5)
	.set	macro
	.set	reorder

$L226:
	addiu	$4,$16,17608
	sb	$0,17605($16)
	sb	$0,17606($16)
	.set	noreorder
	.set	nomacro
	j	$L223
	sb	$0,17607($16)
	.set	macro
	.set	reorder

$L222:
	sb	$0,6($5)
	sb	$0,4($5)
	.set	noreorder
	.set	nomacro
	j	$L219
	sb	$0,5($5)
	.set	macro
	.set	reorder

$L253:
	.set	noreorder
	.set	nomacro
	j	$L219
	sb	$0,4($5)
	.set	macro
	.set	reorder

$L255:
	.set	noreorder
	.set	nomacro
	j	$L234
	sb	$0,4($5)
	.set	macro
	.set	reorder

$L254:
	addiu	$4,$16,17606
	.set	noreorder
	.set	nomacro
	j	$L223
	sb	$0,17605($16)
	.set	macro
	.set	reorder

$L252:
	addiu	$4,$16,209
	.set	noreorder
	.set	nomacro
	j	$L208
	sb	$0,208($16)
	.set	macro
	.set	reorder

$L251:
	move	$17,$0
	move	$2,$17
	lw	$31,24($sp)
	lw	$17,20($sp)
	lw	$16,16($sp)
	.set	noreorder
	.set	nomacro
	j	$31
	addiu	$sp,$sp,32
	.set	macro
	.set	reorder

	.end	mpeg2_init
	.local	mpeg2_accels
	.comm	mpeg2_accels,4,4
	.rdata
	.align	2
	.type	process_header.3277, @object
	.size	process_header.3277, 36
process_header.3277:
	.word	mpeg2_header_picture
	.word	mpeg2_header_extension
	.word	mpeg2_header_user_data
	.word	mpeg2_header_sequence
	.word	0
	.word	0
	.word	0
	.word	0
	.word	mpeg2_header_gop
	.ident	"GCC: (GNU) 4.1.2"