High−level Instructions
3 − 253
Description
Shifts one hexadecimal digit (4 bits) of the data range specified by D1 (starting) and D2 (ending) to the left (to
the higher digit position).
The lower hexadecimal digit
(bit positions 0 to 3) becomes 0.
Specified data range
·· ·· ·· · ·
15 1211 8 7 4 3 0
D2
·· ·· ·· · ·
15 1211 8 7 4 3 0
D1
0
·· ·· ·· · ·
15 1211 8 7 4 3 0
D2
·· ·· ·· · ·
15 1211 8 7 4 3 0
D1
··
15
··
15
··
0
··
0
The data in the higher
hexadecimal digit (bit
position 12 to 15) is
shifted out.
Starting area D1 and ending area D2 should be:
− The same type of operand.
− D1
D2.
When the hexadecimal digit (4 bits) is shifted to the left,
− The data at the higher hexadecimal digit (bit positions 12 to 15) of the 16-bit data specified by D2 is
shifted out.
− The data at the lower hexadecimal digit (bit positions 0 to 3) in the 16-bit data specified by D1
becomes 0.
Flag conditions
・Error flag (R9007): Turns on and stays on when:
・Error flag (R9008): Turns on for an instant when:
− The area specified using the index modifier exceeds the limit.
− D1 > D2.
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