RFPIC12C509AG Microchip Technology Inc., RFPIC12C509AG Datasheet - Page 62

• Manufacturer Part Number: RFPIC12C509AG
• Description: 18/20-pin 8-bit Cmos Microcontroller With Uhf Ask/fsk Transmitter
• Manufacturer: Microchip Technology Inc.

Operands:
Operation:
Status Affected: None
Encoding:
Operands:
Operation:
Status Affected: None
Encoding:
rfPIC12C509AG/509AF
BSF
Syntax:
Description:
Words:
Cycles:
Example:
BTFSC
Syntax:
Description:
Words:
Cycles:
Example:
DS70031A-page 60
Before Instruction
After Instruction
Before Instruction
After Instruction
FLAG_REG = 0x0A
FLAG_REG = 0x8A
PC
if FLAG<1>
PC
if FLAG<1>
PC
Bit Set f
[ label ] BSF
0
0
1
Bit 'b' in register 'f' is set.
1
1
BSF
Bit Test f, Skip if Clear
[ label ] BTFSC f,b
0
0
skip if (f<b>) = 0
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
execution is discarded, and an NOP is
executed instead, making this a 2 cycle
instruction.
1
1(2)
HERE
FALSE
TRUE
0110
0101
f
b
f
b
=
=
=
=
=
(f<b>)
31
31
7
7
FLAG_REG,
BTFSC
GOTO
•
•
•
address (HERE)
0,
address (TRUE) ;
1,
address (FALSE)
bbbf
bbbf
f,b
FLAG,1
PROCESS_CODE
ffff
ffff
7
Preliminary
BTFSS
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Before Instruction
After Instruction
PC
If FLAG<1>
PC
if FLAG<1>
PC
Bit Test f, Skip if Set
[ label ] BTFSS f,b
0
0
skip if (f<b>) = 1
None
If bit 'b' in register 'f' is '1' then the next
instruction is skipped.
If bit 'b' is '1', then the next instruction
fetched during the current instruction
execution, is discarded and an NOP is
executed instead, making this a 2 cycle
instruction.
1
1(2)
HERE
FALSE
TRUE
0111
f
b < 7
=
=
=
=
=
©
31
2001 Microchip Technology Inc.
BTFSS
GOTO
address (HERE)
0,
address (FALSE) ;
1,
address (TRUE)
bbbf
FLAG,1
PROCESS_CODE
ffff