June 2012
Intermediate to advanced
528 pages
15h 40m
English
Content preview from Computers as Components, 3rd Edition
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2.6 TI C64x
The Texas Instruments TMS320C64x is a high-performance VLIW DSP. It provides both fixed-point and floating-point arithmetic. The CPU can execute up to eight instructions per cycle using eight general-purpose 32-bit registers and eight functional units.
Figure 2.24 shows a simplified block diagram of the C64x. Although instruction execution is controlled by a single execution unit, the instructions are performed by two data paths, each with its own register file. The CPU is a load/store architecture. The data paths are named A and B. Each data path provides four function units:
• The .L units (.L1 and .L2 in the two data paths) perform 32/40-bit arithmetic and comparison, 32-bit logical, and data packing/unpacking.
• The .S units ...
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