Intel 80C196NU, 8XC196NP, Microcontroller manual SRC, Dest, EXT SIGN-EXTEND Integer Into Long

								INSTRUCTION SET REFERENCE
			Table A-6. Instruction Set (Continued)
Mnemonic				Operation					Instruction Format
EST	EXTENDED STORE WORD. Stores the								SRC, DEST
	value of the source (leftmost) word operand							EST	wreg, [treg]
	into the destination (rightmost) operand.
								ext. indirect: (00011100) (treg) (wreg)
	This instruction allows you to move data from
								ext. indexed: (00011101) (treg) (disp-low)
	the lower register file to anywhere in the 16-
									(disp-high) (disp-ext) (wreg)
	Mbyte address space.
	ext. indirect: (DEST) ← (SRC)							NOTE:	For 20-bit addresses, the offset
	ext indexed: (DEST)← (SRC) + 24-bit disp
									must be in the range of +524287
									to –524288.
			PSW Flag Settings
		Z	N	C	V	VT	ST
		—	—	— —	—	—
ESTB	EXTENDED STORE BYTE. Stores the value								SRC, DEST
	of the source (leftmost) byte operand into							ESTB	breg, [treg]
	the destination (rightmost) operand.
								ext. indirect: (00011110) (treg) (breg)
	This instruction allows you to move data from
								ext. indexed: (00011111) (treg) (disp-low)
	the lower register file to anywhere in the 16-
									(disp-high) (disp-ext) (breg)
	Mbyte address space.
	ext. indirect: (DEST) ← (SRC)							NOTE:
	ext indexed: (DEST)← (SRC) + 24-bit disp								For 20-bit addresses, the offset
									must be in the range of +524287
									to –524288.
			PSW Flag Settings
		Z	N	C	V	VT	ST
		—	—	— —	—	—
EXT	SIGN-EXTEND INTEGER INTO LONG-
	INTEGER. Sign-extends the low-order word							EXT	lreg
	of the operand throughout the high-order
								(00000110) (lreg)
	word of the operand.
	if DEST.15 = 1 then
	(high word DEST) ← 0FFFFH
	else
	(high word DEST) ← 0
	end_if
			PSW Flag Settings
		Z	N	C	V	VT	ST
		✓	✓	0	0	—	—

A-19