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5. Assembly Language

5. Assembly Language. Basics of AL Program data Pseudo-ops Array Program structures Data, stack, code segments. Some instructions – MOV, XCHG ADD, SUB INC, DEC NEG I/O instructions INT – interrupt LEA SHIFT, ROTATE JUMP – JMP, Jxxx , etc. CMP Signed vs. unsigned jumps

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5. Assembly Language

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  1. 5. Assembly Language

  2. Basics of AL • Program data • Pseudo-ops • Array • Program structures • Data, stack, code segments

  3. Some instructions – • MOV, XCHG • ADD, SUB • INC, DEC • NEG • I/O instructions • INT – interrupt • LEA • SHIFT, ROTATE • JUMP – JMP, Jxxx, etc. • CMP • Signed vs. unsigned jumps • MUL, IMUL • DIV, IDIV • DUP

  4. Conditional flow structure • If – then • If – then – else • Case • AND, OR conditions • Control flow structure • FOR loop • WHILE loop • REPEAT-UNTIL loop

  5. Logic instructions • AND, OR, XOR, NOT • TEST • Shift ins., Rotate ins. • Logical shift/rotate • Arithmetic shift/rotate • Stack, Queue • PUSH, POP

  6. String data transfers [ch.11 [Marut], ch.4 [Brey]] • LODS, STOS, MOVS, INS and OUTS • Addressing modes

  7. Interrupts • Procedures & macro • Virtual memory management • Cache memory management • Exception handler

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