Topic 11 : Assembler language operators 11-mavzu: Assembler tili operatorlari

Information transmission
Information transmission commands to the group following commands includes :
mov < target operand>, < source operand>
xchg ,
MOV - this data ni _ _ transmission basic command . It 's transmission different kind of options instead increases .
MOV command _ _ with one memory from the field to another _ _ will not .
Yusupov RA, 2021
Protsessorning butun sonli mashinasi ko’rsatmalarining funksional tasnifiga yana to’xtalamiz. Bunday buyruqlarning umumiy sonidan quyidagi guruhlari chiziqli bo’limlarida ishlaydi:

• Ma’lumotlar uzatish buyruqlari;
• Arifmetik buyruqlar;
• Mantiqiy buyruqlar;
• Protsessor holatini boshqarish buyruqlari.

Yusupov R.A., 2021
Information two one - sided transmission XCHG command for _ _ used . This operation do really one for _ _ multiple MOV commands sequence use possible , but interchangeable operations often using standing because processor commands system functional developers separately exchange command - XCHG _ _ to enter considered necessary . _ Naturally , operands a kind of round be _ _ need _ Memory 's two of the cell content each other with to - g ' ridan -to ' g ' ri replacement ( all assembler instructions are allowed ) is not allowed . _ _ _ _ For example ,
xchg ax, bx; ax and bx registers content exchange
; a x registry content and the words in the memory in [ si ] address according to _ replacement :
xchg ax, word ptr [ si ]
Yusupov RA, 2021
Ma’lumotlarni uzatish
Ma’lumotlarni uzatish buyruqlari guruhiga quyidagi buyruqlar kiradi:
mov ,
xchg ,
MOV – bu ma’lumotlarni uzatishning asosiy buyrug’i. U uzatishning turli xil variantlarini amalga oshiradi.
MOV buyrug’i bilan bitta xotira maydonidan boshqasiga o’zatib bo’lmaydi.
Yusupov R.A., 2021
Information two one - sided transmission XCHG command for _ _ used . This operation do really one for _ _ multiple MOV commands sequence use possible , but interchangeable operations often using standing because processor commands system functional developers separately exchange command - XCHG _ _ to enter considered necessary . _ Naturally , operands a kind of round be _ _ need _ Memory 's two of the cell content each other with to - g ' ridan -to ' g ' ri replacement ( all assembler instructions are allowed ) is not allowed . _ _ _ _ For example ,
xchg ax, bx; ax and bx registers content exchange
; a x registry content and the words in the memory in [ si ] address according to _ replacement :
xchg ax, word ptr [ si ]
Yusupov RA, 2021
Ma'lumotlarni ikki tomonlama uzatish uchun XCHG buyrug’i ishlatiladi. Ushbu operatsiyani bajarish uchun, albatta, bir nechta MOV buyruqlar ketma-ketligini ishlatish mumkin, ammo almashinish operatsiyalari tez-tez ishlatib turilganligi sababli protsessor buyruqlar tizimini ishlab chiquvchilar alohida almashtirish buyrug’i - XCHG-ni kiritishni zarur deb hisoblashdi. Tabiiyki, operandlar bir xil turda bo’lishi kerak. Xotiraning ikkita katakchasining tarkibini bir-biri bilan to’g’ridan-to’g’ri almashtirishga (barcha assembler ko’rsatmalari kabi) yo’l qo’yilmaydi. Masalan,
xchg ax, bx; ax va bx registrlari tarkibini almashtirish
;ax registrining mazmunini va xotiradagi so’zlarni [si] dagi adres bo’yicha almashtirish:
xchg ax, word ptr [si]
Yusupov R.A., 2021
Yusupov RA, 2021