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PIC16F193X Datasheet, PDF (345/418 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology | |||
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PIC16F193X/LF193X
CALL
Syntax:
Operands:
Operation:
Status Affected:
Description:
Call Subroutine
[ label ] CALL k
0 ⤠k ⤠2047
(PC)+ 1â TOS,
k â PC<10:0>,
(PCLATH<4:3>) â PC<12:11>
None
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 instruc-
tion.
CALLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Subroutine Call With W
[ label ] CALLW
None
(PC) +1 â TOS,
(W) â PC<7:0>,
(PCLATH<6:0>) â PC<14:8>
None
Subroutine call with W. First, the
return address (PC + 1) is pushed
onto the return stack. Then, the con-
tents of W is loaded into PC<7:0>,
and the contents of PCLATH into
PC<14:8>. CALLW is a two-cycle
instruction.
CLRF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Clear f
[ label ] CLRF f
0 ⤠f ⤠127
00h â (f)
1âZ
Z
The contents of register âfâ are cleared
and the Z bit is set.
CLRW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Clear W
[ label ] CLRW
None
00h â (W)
1âZ
Z
W register is cleared. Zero bit (Z) is
set.
CLRWDT
Syntax:
Operands:
Operation:
Status Affected:
Description:
Clear Watchdog Timer
[ label ] CLRWDT
None
00h â WDT
0 â WDT prescaler,
1 â TO
1 â PD
TO, PD
CLRWDT instruction resets the Watch-
dog Timer. It also resets the prescaler
of the WDT.
Status bits TO and PD are set.
COMF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Complement f
[ label ] COMF f,d
0 ⤠f ⤠127
d â [0,1]
(f) â (destination)
Z
The contents of register âfâ are com-
plemented. If âdâ is â0â, the result is
stored in W. If âdâ is â1â, the result is
stored back in register âfâ.
DECF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Decrement f
[ label ] DECF f,d
0 ⤠f ⤠127
d â [0,1]
(f) - 1 â (destination)
Z
Decrement register âfâ. If âdâ is â0â, the
result is stored in the W
register. If âdâ is â1â, the result is stored
back in register âfâ.
© 2008 Microchip Technology Inc.
Preliminary
DS41364A-page 343
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