Microchip Technology MCP9800DM-DL2 Data Sheet

Page of 98
PIC10F200/202/204/206
DS40001239E-page 54
 
 2004-2013 Microchip Technology Inc.
BTFSS
Bit Test f, Skip if Set
Syntax:
label ]  BTFSS  f,b
Operands:
 f  31
 b < 7
Operation:
skip if (f<b>) = 1
Status Affected: None
Description:
If bit ‘b’ in register ‘f’ is ‘1’, then the 
next instruction is skipped.
If bit ‘b’ is ‘1’, then the next instruc-
tion fetched during the current 
instruction execution, is discarded 
and a NOP is executed instead, 
making this a two-cycle instruction.
CALL
Subroutine Call
Syntax:
label ]   CALL   k
Operands:
 k  255
Operation:
(PC) + 1
 Top-of-Stack;
 PC<7:0>;
(STATUS<6:5>) 
 PC<10:9>;
 PC<8>
Status Affected: None
Description:
Subroutine call. First, return 
address (PC + 1) is PUSHed onto 
the stack. The eight-bit immediate 
address is loaded into PC 
bits <7:0>. The upper bits 
PC<10:9> are loaded from 
STATUS<6:5>, PC<8> is cleared. 
CALL is a two-cycle instruction.
CLRF
Clear f
Syntax:
label ]  CLRF    f
Operands:
 f  31
Operation:
00h 
 (f);
 Z
Status Affected: Z
Description:
The contents of register ‘f’ are 
cleared and the Z bit is set.
CLRW
Clear W
Syntax:
label ]   CLRW
Operands:
None
Operation:
00h 
 (W);
 Z
Status Affected: Z
Description:
The W register is cleared. Zero bit 
(Z) is set.
CLRWDT
Clear Watchdog Timer
Syntax:
label ]   CLRWDT
Operands:
None
Operation:
00h 
 WDT;
 WDT prescaler (if assigned);
 TO;
 PD
Status Affected: TO, PD
Description:
The CLRWDT instruction resets the 
WDT. It also resets the prescaler, if 
the prescaler is assigned to the 
WDT and not Timer0. Status bits 
TO and PD are set.
COMF
Complement f
Syntax:
label ]   COMF    f,d
Operands:
 f  31
 [0,1]
Operation:
(f) 
 (dest)
Status Affected: Z
Description:
The contents of register ‘f’ are 
complemented. If ‘d’ is ‘0’, the 
result is stored in the W register. If 
‘d’ is ‘1’, the result is stored back in 
register ‘f’.