Inovance H3U Series - Page 264

263
4
4 Instructions 4.6.4 Matrix Rotation and Shift
The character indicated by [S2] and subsequent characters contained in the string from head address [D]
are replaced by a number (indicated by [S2+1]) of characters at the left end (beginning) of the string from
head address [S1].
The source string starts with [S1] and ends with 00H.
When the value in [S2+1] is 0, the instruction is not executed.
When the value in [S2+1] is –1, all characters of the string from head address [S1] replace those of the
string from head address [D].
If the value in [S2+1] is greater than the number of characters within the range from the character indicated
by [S2] to the last one, only the characters within this range are replaced, and redundant characters of the
source string are discarded.
31H (0)
33H (3)
35H (5)
S+1
S+2
b7-----b0
37H (7)
S+3
30H (0)
32H (2)
36H (6)
b15----- b8
S+4
34H (4)
00H
38H (8)
S
“012345678”
S2
5
S2+1
8
“ABCDEFGHI”
D+1
D+2
EE
D+3
EE
D
Eighth
character
First
character
Start point on the left of the
string in [D]
Number of characters on the left
of the string in [S1]
42H(B)
44H(D)
46H(F)
D+1
D+2
EE
48H(H)
D+3
41H(A)
43H(C)
47H(G)
EE
D+4
45H(E)
00H
49H(I)
D
42H(B)
44H(D)
41H(A)
43H(C)
31H(0)
33H(3)
30H(0)
32H(2)
“ABCD01234”
Replace the content from the fifth character to the last one
The extra content 35H (5) to 37H (7) is not stored.
.
Fifth
character
Fifth
character
D+4
00H
34H(4)
An error is returned in the following conditions. The error ag M8067 is set to ON to identify this error and
the error code is stored in D8067.
1. Error 6705 is returned due to out-of-range search when 00H is not found in elements from head address
[S1] or [D].
2. Error 6706 is returned when the value in [S2] is greater than the number of characters contained in the
string from head address [D].
3. Error 6706 is returned when the value of n in [S2] is negative.
4. Error 6706 is returned when the value in [S2+1] is –2 or less.
5. Error 6706 is returned when the value in [S2+1] exceeds the number of characters from head address [S1].
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Application