INSTRUCTION DESCRIPTIONS
A - 110 INSTRUCTION SET DETAILS MOTOROLA
Operation: Assembler Syntax:
If S[n]=0, then xxxx➞PC JCLR #n,X:ea,xxxx
else PC+1➞PC
If S[n]=0, then xxxx ➞PC JCLR #n,X:aa,xxxx
else PC+1 ➞PC
If S[n]=0, then xxxx ➞PC JCLR #n,X:pp,xxxx
else PC+1 ➞PC
If S[n]=0, then xxxx ➞PC JCLR #n,Y:ea,xxxx
else PC+1 ➞PC
If S[n]=0, then xxxx ➞PC JCLR #n,Y:aa,xxxx
else PC+1 ➞PC
If S[n]=0, then xxxx ➞PC JCLR #n,Y:pp,xxxx
else PC+1 ➞PC
If S[n]=0, then xxxx ➞PC JCLR #n,S,xxxx
else PC+1 ➞PC
Description: Jump to the 16-bit absolute address in program memory specified in the
instruction’s 24-bit extension word if the nth bit of the source operand S is clear. The bit to
be tested is selected by an immediate bit number from 0–23. If the specified memory bit
is not clear, the program counter (PC) is incremented and the absolute address in the
extension word is ignored. However, the address register specified in the effective
address field is always updated independently of the state of the nth bit. All address reg-
ister indirect addressing modes may be used to reference the source operand S. Abso-
lute Short and I/O Short addressing modes may also be used.
JCLR Jump if Bit Clear JCLR