Hitachi NJI-350B User Manual
Page 120
Chapter 5 Instruction Specifications
5-70
Item number
Application instructions-3
Name
Bit test
Ladder format
Condition code
Processing time (
µs)
Remark
R7F4
R7F3
R7F2
R7F1
R7F0
Average Maximum
BTS (d, n)
DER
ERR
SD
V
C
Upper case: W
z
z
z
z
↕
31
Lower case: DW
Instruction format
Number of steps
Condition
Steps
BTS (d, n)
3
38
Bit
Word
Double word
Usable I/O
X
Y
R,
M
TD, SS,
CU, CT
WX WY
WR,
WM TC DX DY
DR,
DM
C
o
nstant
Other
d
I/O to be tested
{
{
{
{
{
n
Bit location to be tested
{
{
{
{
{
The constant is set in
decimal.
Function
• Checks the contents of the nth bit of the I/O (word or double word) specified by d, and if the result is “1,” '1' is set to C
(R7F0). If the result is “0,” C (R7F0) is reset to “0.”
• The contents of d remains unaltered.
5
d
C (R7F0)
4
3
2
1
0
n
n-1
n+1
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
If d is a word:
Designates the bit location depending on the contents (0 to 15) of the lower 4 bits (b3 to b0) of n (WX,
WY, WR, WM, TC). (Upper bits are ignored and considered as “0.”)
The n (constant) can be set to 0 to 15 (decimal).
If d is a double word:
Designates the bit location depending on the contents (0 to 31) of the lower 5 bits (b4 to b0) of n (WX,
WY, WR, WM, TC). (Upper bits are ignored and considered as “0.”)
The n (constant) can be set to 0 to 31 (decimal).
Program example
BSET (DR0100, WR0001)
BRES (DR0102, WR0001)
BTS
(DR0104, WR0001)
R000 = R7F0
X00000
DIF200
LD
X00000
AND DIF200
[
BSET (DR0100, WR0001)
BRES (DR0102, WR0001)
BTS
(DR0104, WR0001)
R000 = R7F0
]
BTS
(
d, n
)