Intel 210200-002 manual Jna

JBE	JUMP ON BELOW
		OR EQUAL
JNA		JUMP ON
		NOT ABOVE
Operation:		Flags Affected:
IF (CF) or (ZF) = 1 then		None

(IP) - (IP) + disp (sign-extended to 16-bits)

Description:

JBE (Jump on Below or Equal)/JNA (Jump on Not Above) transfers control to the target operand (IP + displacement) if CF or ZF = 1.

JBE

JNA

Encoding:

I0111 011 0 I	disp
JBE/JNA Operands Clocks Transfers Bytes JNA Coding Example
			,
short-label	16or4	-	2 JNA NOT_ABOVE

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