6. Funktionseinheiten eines Computers / Mikrocomputers

Rechnergrundlagen Teil 2 - 16 - Prof. Dipl.-Ing. Komar
LAHF Load: AH= flags
LDS Xl ,X2 Load pointer using DS
LEA Xl ,X2 Load effectiv adress
LES Xl ,X2 Load pointer using ES
LODS Load stringbyte
LODSW Load stringword
LOOP XX Loop DEC CX; jump short if CX/=0
LOOPE XX Loop Equal DEC CX; jump short if CX/=0 and equal (ZF=l)
LOOPNE XX Loop Not Equal DEC CX; jump short if CX/=0 and not equal
LOOPNZ XX Loop Not Zero DEC CX; jump short if CX/=0 and ZF=0
LOOPZ XX Loop Zero DEC CX; jump short if CX/=0 and zero (ZF=l)
MOV Xl ,X2 Move
MOVSB Move Stringbyte
MOVSW Move Stringword
MUL Multipy unsigned
NEG Negate
NOP No Operation
NOT NOT-Vergleich
OR Xl ,X2 Logical-OR
OUT Xl ,X2 Output to port
POP Xl POP Register from stack
POPF Pop Flags
PUSH Xl PUSH Register to stack
PUSHF PUSH Flags
RCL xx,l Rotate left carry
RCR xx,l Rotate right carry
REP (prefix) Repeat
REPE (prefix) Repeat equal
REPNE (prefix) Repeat not equal
REPNZ (prefix) Repeat not zero
REPZ (prefix) Repeat zero
RETF Return far
RET Return near
ROL xx,1 Rotate left
ROR xx,l Rotate right
SAHF Store AH into flags
SAL xx,l Shift arithmetik left
SAR xx,l Shift arithmetik right
SBB Xl ,X2 Subtract with borrow
SCAS Compare Strings
SHL xx,l Shift left
SHR xx,l Shift right
STC Set carry flag
STD Set direction flag
STI Set interrupt enable flag
STOS xx Store String
SUB Xl ,X2 Subtract
TEST Xl ,X2 Test
XCHG Xl ,X2 Exchange
XLAT xx Translate
XOR Xl ,X2 Exclusive-OR