Texas Instruments MSP430x1xx User Manual
Page 369
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Instruction Set Overview
B-19
Instruction Set Description
* CLRC
Clear carry bit
Syntax
CLRC
Operation
0 –> C
Emulation
BIC
#1,SR
Description
The carry bit (C) is cleared. The clear carry instruction is a word instruction.
Status Bits
N: Not affected
Z: Not affected
C: Cleared
V: Not
affected
Mode Bits
OscOff, CPUOff, and GIE are not affected.
Example
The 16-bit decimal counter pointed to by R13 is added to a 32-bit counter
pointed to by R12.
CLRC
; C=0: defines start
DADD
@R13,0(R12)
; add 16-bit counter to low word of 32-bit counter
DADC
2(R12)
; add carry to high word of 32-bit counter
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