Intel mcs-48 manual Inter, All mnemonics copyrlghted@ Intel Corporation

inter 8031/8051/8751 ~!ru~lLO[M]OOO&'!ruW

Arithmetic
			Oscillator
Mnemonic	Oescrlptlon	Bytes	Periods
ADD A,An	Add register to A	1	12
"ADD A,data	Add direct byte to A	2	12
ADD A,@Ai	Add indirect AAM to A		12
ADD A,#data	Add immediate data to A		12
ADDC A,An	Add register and carry flag to A		12
"ADDC A,data	Add direct byte and carry flag		12
	to A
ADDCA,@Ai	Add indirect RAM and carry		12
	flag to A
ADDC A,#data	Add immediate data and carry		12
	flag to A
"SUBB A,An	Subtract register and carry flag		12
	from A
"SUBB A,data	Subtract direct byte and carry		12
	flag from A
"SUBBA,@Ai	Subtract indirect RAM and		12
	carry flag from A
"SUBB A,#data	Subtract immediate data and		12
	carry flag from A
INCA	Increment A		12
INC An	Increment register		12
"INC data	Increment direct byte		12
INC@Ai	Increment indirect RAM		12
DECA	Decrement A		12
DEC An	Decrement register		12
"DEC data	Decrement direct byte		12
"DEC@Ai	Decrement indirect RAM		12
"INC DPTR	Increment Data Pointer		24
"MUL AB	Multiply A times B		48
"DIVAB	Divide A by B		48
DAA	Decimal add Adjust of A		12

Other
			Oscillator
Mnemonic	Description	Bytes	Periods
NOP	No Operation	1	12

Control Transfer (Branch)
			Oscillator
Mnemonic	Description	Bytes	Periods
AJMP addr 11	Absolute Jump	2	24
"LJMP addr16	Long Jump	3	24
"SJMP rei	Short Jump		24
"JMP @A+DPTA	Jump indirect relative to		24
	the DPTA
JZ rei	Jump if A is zero		24
JNZ rei	Jump if A is not zero		24
JC rei	Jump if carry is set		24
JNC rei	Jump if carry is not set		24
"JB bit,rel	Jump relative if direct bit	3	24
	is set
• JN8 bitt rei	Jump relative if direct bit	3	24
	is not set
"JBC bit,rel	Jump relative if direct bit		24
	is set, then clear bit
"CJNE A,data,rel	Compare direct byte to A	3	24
	& Jump if not Eq.
	See Note 8.
"CJNE A.#data,rel	Compare immed. to A & Jump	3	24
	jf not Eq. See Note a.
"CJNE An,#data,	Compare immed. to reg &	3	24
rei	Jump if not Eq. See Note a.
"CNJE@Ri,	Compare immed. to indirect	3	24
#data,rel	AAM & Jump if not Eq.
	See Note a.
DJNZ An,rel	Decrement register & Jump	3	24
	if not zero
"DJNZ data,rel	Decrement direct byte &		24
	Jump if not zero

Note a) Set C if the first operand is less than the second operand;

else clear
Control Transfer (SubrOUtine)
			Oscillator
Mnemonic	Description	Bytes	Periods
ACALL addrll	Absolute Subroutine Call	2	24
LCALL addr16	Long Subroutine Call	3	24
AET	Return from Subroutine Call		24
AETI	Return from Interrupt Call		24

All mnemonics copyrlghted@ Intel Corporation 1980"

AFN~01462A~15

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