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489
Conversion Instructions
Section 3-12
Description
BCD(024) converts the binary data in S to BCD data and writes the result to
R.
Flags
Precautions
The content of S must not exceed 270F (9999 decimal).
Example
The following diagram shows an example BCD-to-binary conversion.
In this example, N words of binary data is converted to BCD data.
If N = 3, the three words of binary starting from D00010 will be converted to
binary data one word at a time when CIO 00000 turns ON. The resulting BCD
data will be stored starting from D00100.
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
---
Data Registers
DR0 to DR15
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
S
R
(BCD)
(BIN)
R
Name
Label
Operation
Error Flag
ER
ON if the content of S exceeds 270F (9999 decimal).
OFF in all other cases.
Equals Flag
=
ON if the result is 0000.
OFF in all other cases.
R
×
16
3
×
16
2
×
16
1
×
16
0
×
10
3
×
10
2
×
10
1
×
10
0
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...