PIC16F716 Microchip Technology, PIC16F716 Datasheet - Page 77

• Manufacturer Part Number: PIC16F716
• Description: 8-bit Flash-based Microcontroller with A/D Converter and Enhanced Capture/Compare/PWM
• Manufacturer: Microchip Technology

 2003 Microchip Technology Inc.
BTFSS
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Bit Test f, Skip if Set
[ label ] BTFSS f,b
0
0
skip if (f<b>) = 1
None
01
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 a NOP is executed
instead, making this a two-cycle
instruction.
1
1(2)
HERE
FALSE
TRUE
Before Instruction
After Instruction
if FLAG<1> = 1,
f
b < 7
127
PC = address HERE
if FLAG<1> = 0,
PC =
PC =
11bb
BTFSS
GOTO
•
•
•
address FALSE
address TRUE
bfff
REG1
PROCESS_CODE
ffff
Preliminary
CALL
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
CLRF
Encoding:
Description:
Words:
Cycles:
Example
Status Affected:
Operands:
Operation:
Syntax:
Call Subroutine
[ label ] CALL k
0
(PC)+ 1
k
(PCLATH<4:3>)
None
10
Call Subroutine. First, return
address (PC+1) is pushed onto
the stack. The eleven bit
immediate address is loaded
into PC bits <10:0>. The upper
bits of the PC are loaded from
PCLATH. CALL is a two-cycle
instruction.
1
2
HERE
Before Instruction
After Instruction
Clear f
[ label ] CLRF
0
00h
1
Z
00
The contents of register ‘f’ are
cleared and the Z bit is set.
1
1
CLRF
Before Instruction
After Instruction
k
f
PC<10:0>,
Z
PC
PC
TOS = Address HERE+1
PIC16F716
REG1
REG1
Z
127
(f)
2047
0kkk
CALL
0001
REG1
TOS,
= Address HERE
= Address THERE
= 0x5A
= 0x00
= 1
DS41206A-page 75
f
kkkk
THERE
1fff
PC<12:11>
kkkk
ffff