3.1 3.2 80C51 3.3 293.4 243.5 243.6 173.7 173 80C51

3.1 3.1.1 8 INC A04HA AACCE0H 0000 0100INC A

53MOV AR0 81110 1000BE8H3000R01110 1000MOV AR0

MOV A#50H 0111 0100B0101 0000B74H50H0101 0000MOV A#50H0111 0100

MOV 20H#50H 0111 0101B0010 0000B0101 0000B75H20H50H0010 0000MOV 20H#50H0111 01010101 0000

3.1.2 [][][]

ANL A40H ANL40HA AACCSFRE0H MOV A30H74H30H MOV ACC30H75HE0H30H

3.1.3 Rnn=0~7-Rii=01--R0R1@ ---------------#data -----------8#data16--------16direct-----------128RAMSFR

addr11-----------11addr16-----------16rel-----------------8128127bit----------------RAMSFR/------------------------------ ----------------

3.2 80C51

RAM128SFRR0R7,A,B,DPTRRAM:@R0,@R1,SPRAM:@R0,@R1,@DPTR:@A+PC,@A+DPTR256:PC+RAM(20H2FH)SFR

3.2.1 MOV AR0 R0~R7ABABDPTR

MOV AR0 R0=30H000H7FH30H30H80HFFHAE8HFFFFHMOV AR00000HROMSFRRAM:A=30H

3.2.2 RAM 128SFRMOV A50H

MOV A50H 50H=3AH50H7FH3AH3AH80HFFHAFFFFHMOV A50H0000HROMSFRRAM:A=50H

3.2.3 RAMRAMR0R1DPTRRAMRAM256P2MOVMOVX

MOV A @R0 R0=30HE6HFFFFHMOV A @ R00000HROM:A=30H30H7FH5AH5AH80HFFHASFRRAM30HR0

3.2.4 ROM

MOV A #50H 7FH50H80HFFHAFFFFHMOV A#50H0000HROMSFRRAM:A=50H

3.2.5 ROMDPTRPCA

MOVC A @A+DPTR 7FH0FH80HFFHAFFFFHMOVC A @A+DPTR 0000HROMSFRRAM:A=88H93H88H00H24H2400H+0FH= 240FH 240FHDPLDPH88H

PC rel 3.2.6 PC +rel PC23PC rel :128127

JC rel rel75HPSW.7 17FH1000 000080HFFHPSW1002HJC rel1000HROMSFRRAM:1077H1001H1077H1000H+02H= 1002H PC1002H+75H= 1077H PCPC

8 3.2.7 SFR

CLR ACC.0 MOV 30HC RAMSFR

3.3 29PSW MOV MOV MOVCMOVXPUSHPOPXCHXCHDSWAP

16 data16DPTR MOV DPTR#1234H 3.3.1 DPH=12HDPL=34H

8 data direct AARnRndirectdirect@Ri@Ri#data

A R1= 20H20H= 55H MOV A@R1MOV ARndirect@Ri#dataA= 55H

Rn 50H= 40H MOV R650H MOV RnAdirect#dataR6= 40H

direct R1=50H,50H=18H MOV 40H@R1 40H=18H MOV directRndirect1@Ri#dataA

@Ri R1=30HA=20H MOV @R1A30H=20HMOV @RiAdirect#data

3.3.2 ROM MOVC A@A+PC PCAPCMOVC A@A+DPTR DPTRADPTR

RAM RAM MOVX A@DPTR MOVX A@Ri RAM MOVX @DPTRA MOVX @RiA

3-4 3000H21H30H R532H3010H DPTR@Ri3-6 1000H1009H0930HXXY40H

PUSH direct POP direct SP 07HSP=07H40H=88H PUSH 40H SP=08H08H=88H

R0=80HA=20H XCH AR0 XCH ARndirect@RiA=80HR0=20H

R030H30H67H A20H XCHD A@R0 A27H30H60H XCHD A@Ri SWAP AA30HSWAP AA03H

3.4 24 11 AA PSWOVCYAC CY OV ACBCD

3.4.1 CYACOVPADD ARndirect@Ri#dataD7D6OV=1OV=1

A=84H30H=8DH ADD A30H A=11HCY=1AC=1OV=1D7D6P=0 CYAC

ACYAADDC ARndirect@Ri#data CY

1 1 INC A PINC Rndirect@RiDPTRA

A2BCD DA A A4BCD4AC=146 A4BCD4CY=146 CY

CY0AR2 ADD AR2 DA A 1 23 BCD

3.4.2 SUBB ARndirect@Ri#dataCYACOVPD7D6OV=1CY 0

A=C9HR2=54HCY=1 SUBB AR2 A=74HCY=0AC=1OV=167P=0

1 1 DEC A PDEC Rndirect@RiA

3.4.3 MUL AB A=50HB=A0H MUL AB A=00HB=32HOV=1CY=0 FFHOV=1 CY0X ABAB

3.4.4 A=FBH251B=12H18 DIV AB A=0DHB=11HOV=0CY=0DIV AB 0ABOV=1 CY0X ABAB

3.5 24 :0 A0P A CY

3.5.1 : A=C3HR0=AAH ANL AR0 A=82HANL directA#dataANL ARndirect@Ri#data A

3.5.2 : A=C3HR0=55HORL AR0 A=D7H ORL directA#dataORL ARndirect@Ri#data A

3.5.3 A=C3HR0=AAH XRL AR0 A=69H XRL directA#dataXRL ARndirect@Ri#data A

3.5.4 0 AACPL ACLR A A=A5H CLR A A=00H A 0 A

3.5.5 RR A A1RRC A ACY1RL A A1RLC A ACY1

A2RLC A A= BDH = 1011 1101BCY0RLC A 17AH3782BDH189 APSW010111101

3.6 17

3.6.1 AJMP addr11 PCAJMP11PC10~0PC15~11 PC5322KBAJMPAJMP2KB

LJMP addr16 PC88 64KBROM NEWADD1234H LJMP NEWADD PC 1234H

SJMP rel rel00H7FH80HFFH1281 rel NEWADD0123HPC0100H SJMP NEWADD 0123H re l= 0123H01002= 21H

JMP @A+DPTRDPTRA MOV DPTR#TABLE JMP @A+DPTRTABLEAJMP ROUT0 A=00H AJMP ROUT1 A=02H AJMP ROUT2 A=04H AJMP ROUT3 A=06H

3.6.2 0 A00H JNZ L1 INC A JNZ L2 L2 JZ rel A 0JNZ rel A 0

CJNE Adirectrel CJNE ARn@Ridatarel

10 1 0 0 0DJNZ Rnrel DJNZ direct rel

MOV 23H#0AH CLR ALOOPXADD A23H DJNZ 23HLOOPX SJMP $ : A=10+9+8+7+6+5+4+3+2+1=37H

3.6.3 AJMPLJMP ACALL addr11 LCALL addr16

ACALL2K LCALL64K SP=07HXADD0345HPC0123H ACALL XADD PC+2=0125H825H08H801H09HPC=0345H0345H

RETPC RETIRET RETI

3.6.4 NOP PC1 1

3.7 17 0D5H 0D0H.5PSW.5 F0 MYFLAG BIT F0PSW5CCYD7H

3.7.1 MOV bitC MOV C bit CY CY=1P3=1100 0101BP1=0011 0101B MOV P1.3C MOV CP3.3 MOV P1.2C CY=0P3P1 0011 1001B

3.7.2 0 CY0 P1=1001 1101BCLR P1.3 ( P1 )=1001 0101BCLR C CLR bit 0

P1=1001 1100BSETB P1.0 P11001 1101B CY1SETB C SETB bit 1

3.7.3 P1=1001 1100BCY1ANL C P1.0 P1 CY0 ANL Cbit ANL C/bit

ORL Cbit ORL C/bit CPL C CPL bit

3.7.4 CYCY=1PCrel JC rel JNC rel CY=0PCrel

bitJB bitrel JBC bitrel JNB bitrel bit =1PCrel bit =0PCrel 0

180C51280C513SFR4RAM5RAM6780C51880C52RAM128

9 1MOV A#88H 2MOV R350H 3MOV P1.1#55H 4ADD A@R1 5SETB 12H10 1R0R1 2RAM60HR2 3RAM1000HRAM60H 4RAM1000HR2 5RAM1000HRAM2000H

11R1=30HA=40H30H=60H40H=08H MOV A@R1 MOV @R140H MOV 40HA MOV R1#7FH12A=E8HR0=40HR1=20HR4=3AH40H=2CH20=0FHCYACOV 1MOV A@R0 2ANL 40H#0FH 3ADD AR4 4SWAP A 5DEC @R1 6XCHD A@R1

1350H=40HAR0RAM40H41H42H MOV A50H MOV R0A MOV A#00H MOV @R0A MOV A3BH MOV 41HA MOV 42H41H14 1ACC.0 24 3ACC.3ACC.4ACC.5ACC.6

15RAM20H21H22H2FH2EH2DH16167F4DH2B4EHRAM30H31H31H830H817R14R248R118RAM20H21HR2R3R28R38

19CY=1P1=10100011BP3=01101100BCYP1P3 MOV P1.3C MOV P1.4C MOV CP1.6 MOV P3.6C MOV CP1.0 MOV P3.4C2012MHz20ms