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655
Table Data Processing Instructions
Section 3-17
Description
SUM(184) adds C units of data beginning with the data in R1 and outputs the
result to D+1 and D. The settings in C+1 determine whether the units are
words or bytes, whether the data is binary (signed or unsigned) or BCD, and
whether to start with the right or left byte of R1 if bytes are being added.
When bit 14 of C+1 has been set to 0, SUM(184) treats the data as binary. In
this case, bit 15 determines whether the data is signed (bit 15 = 1) or
unsigned (bit 15 = 0).
When bit 13 of C+1 has been set to 1, SUM(184) adds bytes of data. In this
case, bit 12 determines whether the calculation starts with the rightmost byte
of R1 (bit 12 = 1) or the leftmost byte of R1 (bit 12 = 0).
Flags
EM Area without bank
E00000 to
E32766
E00000 to
E32767
E00000 to
E32766
EM Area with bank
En_00000 to
En_32766
(n = 0 to C)
En_00000 to
En_32767
(n= 0 to C)
En_00000 to
En_32766
(n = 0 to C)
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Indirect DM/EM
addresses in BCD
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Constants
Specified values
only
---
Data Registers
---
Index Registers
---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Area
C
R1
D
+)
S
D+1
D
The actual table length specified
in C depends upon the units
(words or bytes) set in C+1.
Table length
specified in C
Name
Label
Operation
Error Flag
ER
ON if the content of C isn’t within the specified range of
0001 through FFFF.
ON if the BCD data has been specified, but the range
contains binary data.
OFF in all other cases.
Equals Flag
=
ON if the result is 0000.
OFF in all other cases.
Negative Flag
N
ON if bit 15 is ON in the result.
OFF in all other cases.
Содержание CJ1G-CPUxx
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