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BCHG
Notes: If A or B is specified as the destination operand, the following sequence of events
takes place:
1. The S bit is computed according to its definition (See Section A.5)
2. The accumulator value is scaled according to the scaling mode bits S0
and S1 in the status register (SR).
3. If the accumulator extension is in use, the output of the shifter is limited
to the maximum positive or negative saturation constant, and the L bit is
set.
4. The resulting 24 bit value is placed back into A1 or B1. A0 or B0 is
cleared and the sign of A1 or B1 is extended into A2 or B2.
5. The bit test and change is performed on A1 or B1, and the C bit is set if
the bit tested is set.
Timing: 4+mvb oscillator clock cycles
Memory: 1+ea program words
MOTOROLA
INSTRUCTION DESCRIPTIONS
Bit Test and Change
INSTRUCTION SET DETAILS
BCHG
A - 47
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