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CISC Characteristics :
The design of an instruction set for a computer might take into consideration not only machine language constraints, but also the requirements imposed on the use of high-level programming languages. The translation from high-level to machine language programs is done by means of a compiler program. One cause for the trend to provide a complex instruction set is the desire to simplify the compilation and improve the overall computer performance. The task of a compiler is to produce a sequence of machine instructions for each high-level language statement. The job is simplified if there are machine instructions that implement the statements directly. The important aim of CISC architecture is to attempt to provide a single machine instruction for each statement that is written in a high-level language .An Examples of CISC architectures are the Digital Equipment Corporation VAX computer and the IBM 370 computer.
The main characteristics of CISC architecture are:
1. A large number of instructions-usually from 100 to 250 instructions.
2. Some instructions that perform specialized tasks and are used infrequently.
3. A vast variety of addressing modes-typically from 5 to 20 different modes.
4. Variable-length instruction formats.
5. Instructions that manipulate operands in memory.
Segment Registers The 8086 addresses a segmented memory unlike 8085. The complete 1 megabyte memory, which 8086 is capable to address is divided into 16 logical segments.Thusea
RCR: Rotate Right through Carry:- This instruction rotates the contents bit-wise of the destination operand right by the specified count through carry flag (CF). For each operati
hi!im looking for someone who expert in an assembly language and help me write the programmed!Thank you
I can get it to copy the string but can''t get it to reverse it.
Physical Memory Mapped I/O and Port I/O : CPU controlled I/O comes in 2 ways. Simply the difference is whether we utilize the normal memory addresses for I/O, this is mention
assempbly language routine that takes an array named A containing n bytes of postive numebrs and fills two arranys, array B containing n words and array C containing n long words
AAD: ASCII Adjust for Division though the names of these 2 instructions (AAM and AAD) seem to be same, there is many difference between their functions. The AAD instruction conver
• To develop an assembly language program to control a "simulated" intelligent domestic lighting system with the intention of deterring burglary. • To produce a schematic circuit d
hi, i''m new to assembly language and my teacher told us to look for an example of the odd and even numbers program using debug.exe in ms dos as a guide since we just started. plea
INC: Increment : - This instruction increments the contents of the particular memory or register location by the value 1. All the condition code flags are affected except the carry
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