bsf PORTA,4 btfss STATUS,C bcf PORTA,4
ie: Assume the bit is one, then change to 0 if it is not. A C/C++ macro for Hitech C is available
Saves 1 instruction over the more standard:
btfsc STATUS,C ; load the data bsf PORTA,4 btfss STATUS,C bcf PORTA,4
This macro...
COPY_BIT MACRO var_A,bit_N,var_B,bit_M NOEXPAND btfsc var_A,bit_N bsf var_B,bit_M btfss var_A,bit_N bcf var_B,bit_M ENDM remember to define the dummy macro variables: var_A equ 0 bit_N equ 0
...will produce the same output if called like this:
COPY_BIT STATUS,C,PORTA,4
but can be used on any current bank registers.
file: /Techref/scenix/lib/math/bit/cuabrr.htm, 1KB, , updated: 2004/6/10 14:40, local time: 2024/8/16 13:21,
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