请那位指点一下这个程序是何用意？
M011: CLR
A #STAT30
O #STAT31
= #TEMP103
NOT
= L 56.2
A L 56.2
A #STAT29
O #STAT21
A #STAT18
= #STAT29
L DW#16#10020018
T LD 62
L DINO
T LW 66
TAR2
+ L#720
T LD 68
L LD 62
T LD 20
L LD 66
T LD 24
L LW 70
T LW 28
L B#16#2
T LB 21
L W#16#298
T LW 22
L #STAT48.STAT58
T #TEMP105
JCN M013
A #STAT21
= #STAT73.REQ
A #IN1
= #STAT73.R
L #IN10
T #STAT73.ID
L #IN11
AD DW#16#FFFF
T #STAT73.R_ID
L LD 20
T DID [AR2,P#790.0]
L LD 24
T DID [AR2,P#794.0]
L LW 28
T DIW [AR2,P#798.0]
L #TEMP105
T #STAT73.LEN
+AR2 P#778.0
UC "BSEND"
+AR2 P#7414.0
L #STAT73.LEN
T #TEMP105
A #STAT73.DONE
= #STAT30
A #STAT73.ERROR
= #STAT31
L #STAT73.STATUS
T #TEMP108
M013: CLR
A #STAT32
NOT
A #STAT30
JCN M014
L #STAT36
L 1
+I
T #STAT36
JU M015
M014: CLR
A #STAT26
JCN M015
L 0
T #STAT36
M015: CLR
A #STAT30
= #STAT32
A #STAT31
A #STAT29
JCN M016
L #TEMP108
T #STAT39
L DINO
T LW 62
TAR2
+ L#464
T LD 64
TAR2 LD 58
UC "READ_CLK"
P#L 54.0
P#L 62.0
LAR2 LD 58
JU M017
M016: CLR
A #STAT30
JCN M017
L W#16#0
T #STAT39
M017: L #TEMP104
L T#10M
>=D
A #OUT13
JCN M018
SET
= #STAT24
JU M019
M018: CLR
= #STAT24
M019: L DW#16#10020018
T LD 62
L DINO
T LW 66
TAR2
+ L#6032
T LD 68
L LD 62
T LD 30
L LD 66
T LD 34
L LW 70
T LW 38
L B#16#2
T LB 31
L W#16#18
T LW 32
CLR
A #STAT18
= #STAT84.EN_R
L #IN10
T #STAT84.ID
L #IN12
AD DW#16#FFFF
T #STAT84.R_ID
L LD 30
T DID [AR2,P#816.0]
L LD 34
T DID [AR2,P#820.0]
L LW 38
T DIW [AR2,P#824.0]
L #TEMP106
T #STAT84.LEN
+AR2 P#804.0
UC "BRCV"
+AR2 P#7388.0
L #STAT84.LEN
T #TEMP106
A #STAT84.NDR
= #STAT26
A #STAT84.ERROR
= #STAT27
L #STAT84.STATUS
T #TEMP107
A #STAT28
NOT
A #STAT26
JCN M01a
L #STAT37
L 1
+I
T #STAT37
JU M01b
M01a: CLR
A #STAT21
JCN M01b
L 0
T #STAT37
M01b: CLR
A #STAT26
= #STAT28
A #STAT27
A #STAT18
JCN M01c
L #TEMP107
T #STAT41
L DINO
T LW 62
TAR2
+ L#544
T LD 64
TAR2 LD 58
UC "READ_CLK"
P#L 54.0
P#L 62.0
LAR2 LD 58
JU M01d
M01c: CLR
A #STAT26
JCN M01d
L W#16#0
T #STAT41
M01d: CLR
A #STAT18
= #OUT14
NOT
= #OUT13
L #STAT36
T #OUT15
A L 56.1
SAVE
BE