Labels:bulletin board | sky OCR: High-level language Assembly-language source code source code Machine -language instructions including user programs DOS and the BIOS 8088 PC bus Hardware (memory, disks, kevboard display adapters, speakers and so on FIGURE 3.2 For high performance assembler programming, this vicw of the PC's resources is more useful than that of layered system software. Here the emphasis is on the interaction between machine language instructions, the 8088, and the hardware with cycle eaters potentially present in the PC's hardware and bus. perfc ormance view
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