PIC17C7XX_13 Datasheet, PDF (205/306 Pages) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

BSF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
Bit Set f
[ label ] BSF f,b
0  f  255
0b7
1  (f<b>)
None
1000 0bbb ffff
Bit 'b' in register 'f' is set.
1
1
ffff
Q2
Read
register 'f'
Q3
Process
Data
Q4
Write
register 'f'
Example:
BSF
Before Instruction
FLAG_REG =
After Instruction
FLAG_REG =
FLAG_REG, 7
0x0A
0x8A
PIC17C7XX
BTFSC
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
Bit Test, skip if Clear
[ label ] BTFSC f,b
0  f  255
0b7
skip if (f<b>) = 0
None
1001 1bbb ffff ffff
If bit 'b' in register ’f' is 0, then the next
instruction is skipped.
If bit 'b' is 0, then the next instruction
fetched during the current instruction exe-
cution is discarded and a NOP is executed
instead, making this a two-cycle
instruction.
1
1(2)
Q2
Read
register 'f'
Q3
Process
Data
Q4
No
operation
If skip:
Q1
No
operation
Q2
No
operation
Q3
No
operation
Q4
No
operation
Example:
HERE
FALSE
TRUE
BTFSC
:
:
FLAG,1
Before Instruction
PC
= address (HERE)
After Instruction
If FLAG<1> =
PC
=
If FLAG<1> =
PC
=
0;
address (TRUE)
1;
address (FALSE)
 1998-2013 Microchip Technology Inc.
DS30289C-page 205