QUESTIONS AND PROBLEMS 11.1 Discuss the typical features of 32-bit and 64-bit microprocessors. 11.2 (a) What is the basic difference between the 80386 and 80386SX? (b) What is the basic difference between the 80386 and 80486? 11.3 What is the difference between the 80386 protected, real-address, and virtual 8086 modes? 11.4 Discuss the basic features […]
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INTEL AND MOTOROLA 32- & 64-BIT MICROPROCESSORS
Motorola’s State-of-the-art Microprocessors
11.7.2 Motorola’s State-of-the-art Microprocessors As part of their plans to carry the PowerPC architecture into the future, Motorola /IBM/ Apple already announced AltiVec extensions for the PowerPC family. The result is the MPC7400 PowerPC microprocessor. This microprocessor is available in 400 MHz, 450 MHz and 500 MHz clock speeds. Motorola’s AltiVec technology is the foundation […]
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Motorola MC68030 , Motorola MC68040 I MC68060 , PowerPC Microprocessor , IBM/Motorola/Apple PowerPC 601 , PowerPC 601 Registers , PowerPC 601 Addressing Modes , Typical PowerPC 601 Instructions , Integer Instructions , Floating-Point Instructions , Load/Store Instructions , PowerPC 601 Exception Model , Summary of PowerPC 601 Features and PowerPC 64-Bit Microprocessors.
11.7.2 Motorola MC68030 The MC68030 is a virtual memory microprocessor based on the MC68020 with additional features. The MC68030 is designed by using HCMOS technology and can be operated at clock rates of 16.67 and 33 MHz. The MC68030 contains all features of the MC68020, plus some additional ones. The basic differences between the MC68020 […]
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MC68HC000 Enhanced Instructions and M68020 Pins and Signals
Example 11.8 Determine the effect of execution of each of the following PACK and UNPK instructions: Assume the following data prior to execution of each of the above instructions: Note that ASCII code for 2 is $32 and for 7 is $37. Hence, this pack·instruction converts ASCII code to packed BCD. PACK -(Al),-(A4),$0000 (EA) can […]
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MC68020 System Design and MC68020 I/O
MC68020 System Design The following 8-MHz 68020 system design will use a 128 KB 32-bit wide supervisor data memory. Four 27C256’s (32K x 8 HCMOS EPROM with 120-ns access time) are used for this purpose. Because the memory is 32 KB, the 68020 address lines A2-A16 are used for addressing the 27C256′ s. The 68020 […]
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MC68020 Addressing Modes and Examples
MC68020 Addressing Modes Table 11.7 lists the MC68020’s 18 addressing modes. Table 11.8 compares the addressing TABLE 11.7 68020 Addressing Modes modes of the 68HC000 with those of the MC68020. Because 68HC000 addressing modes were covered earlier in this chapter in detail with examples, the 68020 modes not available in the 68HC000 will be covered […]
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Merced/ia-64 , overview of motorola 32- and 64-bit microprocessors , motorola mc68020 , mc68020 functional characteristics and mc68020 programmer’s model
11.6 Merced/IA-64 Intel and Hewlett-Packard recently announced a 64-bit microprocessor called "Merced" and also known as "Intel Architecture-64" (IA-64) or ltanium. The microprocessor is not an extension of Intel’s 32-bit 80×86 or Pentium series processors, nor is it an evolution of HP’s 64-bit RISC architecture. IA-64 is a new design that will implement innovative forward-looking […]
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80386 Instruction Set
11.3.5 80386 Instruction Set The 80386 can execute all 16-bit instructions in real and protected modes. This is provided in order to make the 80386 software compatible with the 8086. The 80386 uses either 8- or 32-bit displacements and any register as the base or index register while executing 32-bit code. However, the 80386 uses […]
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80386 Instruction Set
11.3.5 80386 Instruction Set The 80386 can execute all 16-bit instructions in real and protected modes. This is provided in order to make the 80386 software compatible with the 8086. The 80386 uses either 8- or 32-bit displacements and any register as the base or index register while executing 32-bit code. However, the 80386 uses […]
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Intel 80486 microprocessor , Intel 80486/80386 comparison , special features of the 80486 , 80486 new instructions beyond those of the 80386 , Intel Pentium microprocessor , Pentium registers , Pentium addressing modes and instructions , Pentium versus 80486: basic differences in registers, paging, stack operations, and exceptions , Pentium input/output , applications with the Pentium , Pentium versus Pentium pro and Pentium ii/ Celeron/ Pentium ii xeon / Pentium iii / Pentium 4
11.4 Intel 80486 Microprocessor The Intel 80486 is an enhanced 80386 microprocessor with on-chip floating-point hardware. 11.4.1 Intel80486/80386 Comparison Table 11.2 compares the basic features of the 80486 with those of the 80386. 11.4.2 Special Features of the 80486 The Intel 80486 is a 32-bit microprocessor, like the Intel 80386. It executes the complete instruction […]
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