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ECE 391 (10)
Lecture 3

ECE 391 Lecture Notes - Lecture 3: Processor Register, Memory Address, Points Of The Compass

by MB

Department
Electrical and Computer Engineering
Course Code
ECE 391
Professor
Z Kalbarczyk
Lecture
3

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Ex
movL my label eax eax 080000000
mov Lmy label 00lax eax my label
memory
M
memory contents
9
memory
address
LEA does not allow access to memory
Condition codes in EFLA register
SF signflag result is negative when viewed as
2scomplement data type
ZF zeroflag result is exactly zero
CE carry flag unsigned carry or borrow
occurred
of overflow flag 2scomplement overflow
Pfi parityflag even parity in result even of
1bits
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