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Jclr jump if bit clear jclr – Motorola DSP96002 User Manual

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DSP96002 USER’S MANUAL

MOTOROLA

JCLR

Jump if Bit Clear

JCLR

Operation:

If S{n} = 0, then xxxx

PC

else PC + 1

PC

If S{n} = 0, then xxxx

PC

else PC + 1

PC

If S{n} = 0, then xxxx

PC

else PC + 1

PC

If S{n} = 0, then xxxx

PC

else PC + 1

PC

If S{n} = 0, then xxxx

PC

else PC + 1

PC

If S{n} = 0, then xxxx

PC

else PC + 1

PC

If S{n} = 0, then xxxx

PC

else PC + 1

PC

Assembler Syntax:

JCLR #bit,X: ea, label

JCLR #bit,X: aa, label

JCLR #bit,X: pp, label

JCLR #bit,Y: ea, label

JCLR #bit,Y: aa, label

JCLR #bit,Y: pp, label

JCLR #bit,S,label

Description:

The nth bit in the source operand is tested. If the tested bit is zero, program execution continues at a lo-

cation specified by a 32-bit absolute address in the extension word of the instruction. Otherwise, the PC

is incremented and the extension word is ignored. However, the address register specified in the effective

address field is always updated independently of the condition. All memory alterable addressing modes

may be used to reference the source operand. Absolute Short, I/O Short and Register Direct addressing

modes may also be used. The bit to be tested is selected by an immediate bit number 0-31. See Section

A.10 for restrictions. Note that if the specified source operand S is the SSH, the stack pointer register will

be decremented by one.

CCR Condition Codes: Not affected.

ER Status Bits: Not affected.

IER Flags: Not affected.