Panasonic MN1030 user manual Conditional Branch for Loop, ZF=1 If ZF = 0, execute next instruction

Chapter 12 List of Machine Language Instructions

Conditional BRANCH for LOOP

Mnemonic	Meaning	Description of operation
LEQ	=	If ZF = 1, branch to the top of the loop as specified with SETLB.
	ZF=1	If ZF = 0, execute next instruction.
LNE	=	If ZF = 0, branch to the top of the loop as specified with SETLB.
	ZF=0	If ZF = 1, execute next instruction.
LGT	< (signed)	If ZF = 0 and NF = VF, branch to the top of the loop as specified with
		SETLB.
		If ZF = 1 or NF != VF, execute next instruction.
LGE	< (signed)	If NF = VF, branch to the top of the loop as specified with SETLB.
		If NF != VF, execute next instruction.
LLE	> (signed)	If CF = 1 or ZF = 1, branch to the top of the loop as specified with
		SETLB.
		IUf CF = 0 and ZF = 0, execute next instruction.
LLT	> (signed)	If NF = 1 and VF = 1 or NF = 0 and VF = 0, branch to the top of the loop
		as specified with SETLB.
		If NF = 1 and VF = 0 or NF = 0 and VF = 1, execute next instruction.
LHI	< (unsigned)	If CF = 0 and ZF = 0, branch to the top of the loop as specified with
		SETLB.
		If CF = 1 or ZF = 1, execute next instruction.
LCC	< (unsigned)	If CF = 0, branch to the top of the loop as specified with SETLB.
	CF=0	If CF = 1, execute next instruction.
LLS	> (unsigned)	If CF = 1 or ZF = 1, branch to the top of the loop as specified with
		SETLB.
		If CF = 0 and ZF = 0, execute next instruction.
LCS	< (unsigned)	If CF = 1, branch to the top of the loop as specified with SETLB.
	CF=1	If CF = 0, execute next instruction.
LRA	1	Unconditionally branch to the top of the loop as specified with SETLB.
Mnemonic		Description of operation
SETLB		Store the four bytes following the SETLB and the address of the fifth
		byte in the Loop Instruction Register (LIR) and the Instruction Fetch
		Address Register (LSR), respectively.

246 List of Machine Language Instructions