Intel 8XC251SP, 8XC251SA, 8XC251SQ, 8XC251SB manual JSG rel, JSG LABEL1, Jsge rel, Jsge LABEL1

8XC251SA, SB, SP, SQ USER’S MANUAL

JSG rel

Function: Jump if greater than (signed)

Description: If the Z flag is clear AND the N flag and the OV flag have the same value, branch to the address specified; otherwise proceed with the next instruction. The branch destination is computed by adding the signed relative displacement in the second instruction byte to the PC, after incrementing the PC twice.

Flags:

	CY	AC	OV	N	Z
	—	—	!	!	!
Example:
	The instruction
	JSG LABEL1

causes program execution to continue at LABEL1 if the Z flag is clear AND the N flag and the OV flag have the same value.

	Binary Mode			Source Mode
	Not Taken	Taken		Not Taken	Taken
Bytes:	3	3	2		2
States:	2	5	1		4
[Encoding]
	0 0 0 1	1 0 0 0		rel. addr

Hex Code in: Binary Mode = [A5][Encoding]

Source Mode = [Encoding]

Operation: JSG

(PC) ← (PC) + 2

IF [(N) = 0 AND (N) = (OV)] THEN (PC) ← (PC) + rel

JSGE rel

Function: Jump if greater than or equal (signed)

Description: If the N flag and the OV flag have the same value, branch to the address specified; otherwise proceed with the next instruction. The branch destination is computed by adding the signed relative displacement in the second instruction byte to the PC, after incrementing the PC twice.

Flags:

	CY	AC	OV	N	Z
	—	—	!	!	!
Example:
	The instruction
	JSGE LABEL1

causes program execution to continue at LABEL1 if the N flag and the OV flag have the same value.

A-74