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Philips Semiconductors
User’s Manual - Preliminary -
P89LPC901/902/903
INSTRUCTION SET
2003 Dec 8 105
MOV dir,#data Move immediate to direct byte 3 2 75
MOV @Ri,A Move A to indirect memory 1 1 F6-F7
MOV @Ri,dir Move direct byte to indirect memory 2 2 A6-A7
MOV @Ri,#data Move immediate to indirect memory 2 1 76-77
MOV DPTR,#data Move immediate to data pointer 3 2 90
MOVC A,@A+DPTR Move code byte relative DPTR to A 1 2 93
MOVC A,@A+PC Move code byte relative PC to A 1 2 94
MOVX A,@Ri Move external data(A8) to A 1 2 E2-E3
MOVX A,@DPTR Move external data(A16) to A 1 2 E0
MOVX @Ri,A Move A to external data(A8) 1 2 F2-F3
MOVX @DPTR,A Move A to external data(A16) 1 2 F0
PUSH dir Push direct byte onto stack 2 2 C0
POP dir Pop direct byte from stack 2 2 D0
XCH A,Rn Exchange A and register 1 1 C8-CF
XCH A,dir Exchange A and direct byte 2 1 C5
XCH A,@Ri Exchange A and indirect memory 1 1 C6-C7
XCHD A,@Ri Exchange A and indirect memory nibble 1 1 D6-D7
BOOLEAN
Mnemonic Description Bytes Cycles Hex code
CLR C Clear carry 1 1 C3
CLR bit Clear direct bit 2 1 C2
SETB C Set carry 1 1 D3
SETB bit Set direct bit 2 1 D2
CPL C Complement carry 1 1 B3
CPL bit Complement direct bit 2 1 B2
ANL C,bit AND direct bit to carry 2 2 82
ANL C,/bit AND direct bit inverse to carry 2 2 B0
ORL C,bit OR direct bit to carry 2 2 72
ORL C,/bit OR direct bit inverse to carry 2 2 A0
MOV C,bit Move direct bit to carry 2 1 A2
MOV bit,C Move carry to direct bit 2 2 92
BRANCHING
Mnemonic Description Bytes Cycles
Hex
code