Find Minimum -- Min - Omron CPM1 Programming Manual

Caution
!
Flags
7-22-2 FIND MINIMUM - - MIN(- - - -)
MIN(----)
C
R
1
D
Limitations
Description
1, 2, 3...
If bit 14 of C is ON, values above #8000 are treated as negative numbers, so the
results will differ depending on the specified data type. Be sure that the correct
data type is specified.
ER: Indirectly addressed DM word is non-existent. (Content of
not BCD, or the DM area boundary has been exceeded.)
R and R
1
EQ: ON when the maximum value is #0000.
Ladder Symbols
@MIN(----)
C
R
1
D
This instruction is available in the CPM2A/CPM2C only.
N must be BCD between 0001 to 9999.
R and R +N--1 must be in the same data area.
1 1
DM 6144 to DM 6655 cannot be used for D.
When the execution condition is OFF, MIN(----) is not executed. When the execu-
tion condition is ON, MIN(----) searches the range of memory from R
for the address that contains the minimum value and outputs the minimum value
to the destination word (D).
The address is identified differently for the DM area:
1. For an address in the DM area, the word address is written to C+1. For ex-
ample, if the address containing the minimum value is DM 0114, then #0114
is written in D+1.
2. For an address in another data area, the number of addresses from the be-
ginning of the search is written to D+1. For example, if the address contain-
ing the minimum value is IR 114 and the first word in the search range is
IR 014, then #0100 is written in D+1.
If bit 14 of C is ON and more than one address contains the same minimum val-
ue, the position of the lowest of the addresses will be output to D+1. The position
will be output as the DM address for the DM area, but as an absolute position
relative to the first word in the range for all other areas.
The number of words within the range (N) is contained in the 3 rightmost digits of
C, which must be BCD between 001 and 999.
+N--1 are not in the same data area.
1
IR, SR, AR, DM, HR, TC, LR, #
IR, SR, AR, DM, HR, TC, LR
Section


DM word is
Operand Data Areas
C: Control data
R : First word in range
1
D: Destination word
IR, SR, AR, DM, HR, LR
to R
1
7-22
+N--1
1