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COMPUTER ORGANIZATION AND ARCHITECTURE (William Stallings)

COMPUTER ORGANIZATION AND ARCHITECTURE (William Stallings). CHAPTER 14 CONTROL UNIT OPERATION. Fungsi-fungsi yang dimiliki CPU :. Operasi-operasi (Opcode) Mode-mode Pengalamatan Register-register Antarmuka Modul I/O Antarmuka Modul Memori Struktur Pengolahan Interrupt. Operasi Mikro.

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COMPUTER ORGANIZATION AND ARCHITECTURE (William Stallings)

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  1. COMPUTER ORGANIZATIONAND ARCHITECTURE(William Stallings) CHAPTER 14 CONTROL UNIT OPERATION

  2. Fungsi-fungsi yang dimiliki CPU : • Operasi-operasi (Opcode) • Mode-mode Pengalamatan • Register-register • Antarmuka Modul I/O • Antarmuka Modul Memori • Struktur Pengolahan Interrupt

  3. Operasi Mikro • Fungsi komputer  Eksekusi Program • Ekseksi Program  Siklus-siklus Instruksi • Pengambilan, Indirect, Eksekusi, Interrupt. • Operasi Mikro adalah Operasi Fungsional atau Atomik Suatu CPU

  4. Elemen-elemen Eksekusi Program

  5. Siklus Pengambilan t1 : MAR  (PC) t2 : MBR  Memory PC  (PC) + 1 t3 : IR  (MBR)

  6. Rangkaian Kejadian, Siklus Pengambilan

  7. Siklus Tak Langsung t1 : MAR  (IR(Alamat)) t2 : MBR  Memory t3 : IR(Alamat)  (MBR(Alamat))

  8. Siklus Interrup t1 : MBR  (PC) t2 : MAR  Alamat-Simpan PC  Alamat-Rutin t3 : Memory  (MBR)

  9. Siklus Eksekusi ADD R1, X t1 : MAR  (IR(Alamat)) t2 : MBR  Memory t3 : R1  (R1) + (MBR)

  10. ISZ X t1 : MAR  (IR(Alamat)) t2 : MBR  Memory t3 : MBR  (MBR) + 1 t3 : Memory  (MBR) If (MBR) = 0) Then (PC  PC + 1)

  11. BSA X t1 : MAR  (IR(Alamat)) MBR  (PC) t2 : PC  (IR(Alamat)) Memory  (MBR) t3 : PC  (PC) + 1

  12. Siklus Instruksi 00 : Fetch (Pengambilan) 01 : Indirect (Tak Langsung) 10 : Execute (Eksekusi) 11 : Intrrupt

  13. CONTROL CPU Karateristik CONTROL UNIT : • Menentukan Elemen Dasar CPU • Menjelaskan Operasi Mikro yang akan dilakukan CPU • Menentukan Fungsi-fungsi yang akan dilakukan unit kontrol agar menyebabkan Operasi Mikro Tugas Dasar CPU : • SEQUENCING (Pengurutan) • EXECUTION (Eksekusi)

  14. Sinyal Kontrol Input : • Clock • Instruction Register • Flags • Control Signals to Control Bus Output : • Control Signals Within the CPU • Control Signals to Control Bus

  15. Contoh Sinyal Kontrol Tiga tujuan yang terpisah : • Data Paths (Lintasan Data) • ALU • System BUS

  16. Organisasi Internal CPU T1 : MAR  (IR(Address)) T2 : MBR  Memori T3 : Y  (MBR) T4 : Z  (AC) + (Y) T5 : AC  (Z)

  17. Intel 8085 Komponen Penting : • Incrementer /Decrement Address Latch • Interrupt Control • Serial I/O Control Hal Pokok CU adalah Pewaktuan dan Modul Kontrol

  18. Implementasi Hardwired Teknik Implementasi CU : • Implementasi Hardwired Rangkaian Kombinatorial  signal-signal logika inputnya diubah menjadi sekumpulan signal-signal output • Implementasi Microprogrammed

  19. Implementasi Hardwired • Input Unit Kontrol • Flag dan Control Bus • Instruksi Register • Clock

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