opcodes.txt

this is a file about vhdl source code realtinf 8051 through 8051

ADD A,Rn Add register to Accumulator 1 12  
ADD A,direct Add direct byte to Accumulator 2 12
ADD A,@Ri Add indirect RAM to Accumulator 1 12 
ADD A,#data Add immediate data to Accumulator 2 12 
ADDC A,Rn Add register to Accumulator with carry 1 12
ADDC A,direct Add direct byte to Accumulator with carry 2 12
ADDC A,@Ri Add indirect RAM to Accumulator with carry 1 12
ADDC A,#data Add immediate data to ACC with carry 2 12
SUBB A,Rn Subtract Register from A CC with borrow 1 12
SUBB A,direct Subtract direct byte from A CC with borrow 2 12
SUBB A,@Ri Subtract indirect RAM from A CC with borrow 1 12
SUBB A,#data Subtract immediate data from A CC with borrow 2 12
INC A Increment Accumulator 1 12
INC Rn Increment register 1 12
INC direct Increment direct byte 2 12
INC @Ri Increment indirect RAM 1 12
DEC A Decrement Accumulator 1 12
DEC Rn Decrement Register 1 12
DEC direct Decrement direct byte 2 12
DEC @Ri Decrement indirect RAM 1 12
INC DPTR Increment Data Pointer 1 24
MUL AB Multiply A and B 1 48
DIV AB Divide A by B 1 48
DA A Decimal Adjust Accumulator 1 12
LOGICAL OPERATIONS
ANL A,Rn AND Register to Accumulator 1 12
ANL A,direct AND direct byte to Accumulator 2 12
ANL A,@Ri AND indirect RAM to Accumulator 1 12
ANL A,#data AND immediate data to Accumulator 2 12
ANL direct,A AND Accumulator to direct byte 2 12
ANL direct,#data AND immediate data to direct byte 3 24
ORL A,Rn OR register to Accumulator 1 12
ORL A,direct OR direct byte to Accumulator 2 12
ORL A,@Ri OR indirect RAM to Accumulator 1 12
ORL A,#data OR immediate data to Accumulator 2 12
ORL direct,A OR Accumulator to direct byte 2 12
ORL direct,#data OR immediate data to direct byte 3 24
XRL A,Rn Exclusive-OR register to Accumulator 1 12
XRL A,direct Exclusive-OR direct byte to Accumulator 2 12
XRL A,@Ri Exclusive-OR indirect RAM to Accumulator 1 12
XRL A,#data Exclusive-OR immediate data to Accumulator 2 12
XRL direct,A Exclusive-OR Accumulator to direct byte 2 12
XRL direct,#data Exclusive-OR immediate data to direct byte 3 24
CLR A Clear Accumulator 1 12
CPL A Complement Accumulator 1 12
RL A Rotate Accumulator left 1 12
RLC A Rotate Accumulator left through the carry 1 12
RR A Rotate Accumulator right 1 12
RRC A Rotate Accumulator right through the carry 1 12
SWAP A Swap nibbles within the Accumulator 1 12
DATA TRANSFER
MOV A,Rn Move register to Accumulator 1 12
MOV A,direct Move direct byte to Accumulator 2 12
MOV A,@Ri Move indirect RAM to Accumulator 1 12
MOV A,#data Move immediate data to Accumulator 2 12
MOV Rn,A Move Accumulator to register 1 12
MOV Rn,direct Move direct byte to register 2 24
MOV RN,#data Move immediate data to register 2 12
MOV direct,A Move Accumulator to direct byte 2 12
MOV direct,Rn Move register to direct byte 2 24
MOV direct,direct Move direct byte to direct 3 24
MOV direct,@Ri Move indirect RAM to direct byte 2 24
MOV direct,#data Move immediate data to direct byte 3 24
MOV @Ri,A Move Accumulator to indirect RAM 1 12
MOV @Ri,direct Move direct byte to indirect RAM 2 24
MOV @Ri,#data Move immediate data to indirect RAM 2 12
MOV DPTR,#data16 Load Data Pointer with a 16-bit constant 3 24
MOVC A,@A+DPTR Move Code byte relative to DPTR to A CC 1 24
MOVC A,@A+PC Move Code byte relative to PC to A CC 1 24
MOVX A,@Ri Move external RAM (8-bit addr) to A CC 1 24
MOVX A,@DPTR Move external RAM (16-bit addr) to A CC 1 24
MOVX A,@Ri,A Move A CC to external RAM (8-bit addr) 1 24
MOVX @DPTR,A Move A CC to external RAM (16-bit addr) 1 24
PUSH direct Push direct byte onto stack 2 24
POP direct Pop direct byte from stack 2 24
XCH A,Rn Exchange register with Accumulator 1 12
XCH A,direct Exchange direct byte with Accumulator 2 12
XCH A,@Ri Exchange indirect RAM with Accumulator 1 12
XCHD A,@Ri Exchange low-order digit indirect RAM with A CC 1 12
BOOLEAN VARIABLE MANIPULATION
CLR C Clear carry 1 12
CLR bit Clear direct bit 2 12
SETB C Set carry 1 12
SETB bit Set direct bit 2 12
CPL C Complement carry 1 12
CPL bit Complement direct bit 2 12
ANL C,bit AND direct bit to carry 2 24
ANL C,/bit AND complement of direct bit to carry 2 24
ORL C,bit OR direct bit to carry 2 24
ORL C,/bit OR complement of direct bit to carry 2 24
MOV C,bit Move direct bit to carry 2 12
MOV bit,C Move carry to direct bit 2 24
JC rel Jump if carry is set 2 24
JNC rel Jump if carry not set 2 24
JB rel Jump if direct bit is set 3 24
JNB rel Jump if direct bit is not set 3 24
JBC bit,rel Jump if direct bit is set and clear bit 3 24
PROGRAM BRANCHING
ACALL addr11 Absolute subroutine call 2 24
LCALL addr16 Long subroutine call 3 24
RET Return from subroutine 1 24
RETI Return from interrupt 1 24
AJMP addr11 Absolute jump 2 24
LJMP addr16 Long jump 3 24
SJMP rel Short jump (relative addr) 2 24
JMP @A+DPTR Jump indirect relative to the DPTR 1 24
JZ rel Jump if Accumulator is zero 2 24
JNZ rel Jump if Accumulator is not zero 2 24
CJNE A,direct,rel Compare direct byte to A CC and jump if not equal 3 24
CJNE A,#data,rel Compare immediate to A CC and jump if not equal 3 24
CJNE RN,#data,rel Compare immediate to register and jump if not equal 3 24
CJNE @Ri,#data,rel Compare immediate to indirect and jump if not equal 3 24
DJNZ Rn,rel Decrement register and jump if not zero 2 24
DJNZ direct,rel Decrement direct byte and jump if not zero 3 24
NOP No operation 1 12