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Intel 8086/80186/80286/80386/80486 Family Architecture; Instruction Clock Cycle Calculation; 8088/8086 Effective Address (EA) Calculation; Task State Calculation; FLAGS - Intel 8086 Family Flags Register; MSW - Machine Status Word (286+ only)
Feb 10, 1997 Intel Instruction Set pages. 1 - Intel 8086 Family Architecture 2 - Instruction Clock Cycle Calculation 3 - 8088/8086 Effective Address (EA) Calculation 4 - Task State Calculation 5 - FLAGS - Intel 8086 Family Flags Register 6 - MSW - Machine Status Word (286+ only) 7 - 8086/80186/80286/80386/80486
The 32-bit 80486 is the next evolutionary step up. from the 80386 One of the most obvious feature included in a 80486. is a built in math coprocessor. This coprocessor is essentially the same as the 80387 processor used with a 80386, but being integrated on the chip allows it to execute math instructions about three
8086/80186/80286/80386/80486 Instruction Set A very nice reference about Intel instruction set This guide is a complete reference to Intel instru.
Intel 80486, also known as i486 or just 486, is the fourth-generation generation Intel x86 microprocessor. The 80486 was capable of over 40 million instructions per second (MIPS) and offered roughly twice the performance of the 386. It featured an 8K cache for storing recent instructions.
80486 compatible processors have been produced by other companies such as IBM, Texas Instruments, AMD, Cyrix, UMC, and SGS Thomson. Some were clones (identical at the microarchitectural level), others were clean room implementations of the Intel instruction-set. (IBM's multiple source requirement is one of the
The Intel microprocessors 8086/8088, 80186/80188, 80286, 80386, 80486, Pentium, Pentium. Pro processor, Pentium . inal instruction set. Appendices are included to enhance the text. Appendix A provides an abbreviated listing of the DOS INT 21H function calls because the use of DOS has waned. It also details the use
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes
80486, Pentium, etc.) you can use the sahf instruction to copy the floating point status reg- ister flags into the 80x86's flag register. You'll see this use in the chapter on floating point arithmetic (see “Floating Point Arithmetic" on page 771). 6.4. Conversions. The 80x86 instruction set provides several conversion instructions.
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