Central Processing Unit; Status Register St0 - Texas Instruments TMS320C28x Reference Manual

Central Processing Unit

The central processing unit (CPU) is responsible for controlling the flow of a
program and the processing of instructions. It performs arithmetic, Boolean-
logic, multiply, and shift operations. When performing signed math, the CPU
uses 2s-complement notation. This chapter describes the architecture, regis-
ters, and primary functions of the CPU.
Topic
2.1 CPU Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3

Status Register ST0

2.4 Status Register ST1
2.5 Program Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Multiply Operations
2.7 Shift Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Chapter 2
Page
2-2
2-4
2-16
2-34
2-39
2-41
2-44
2-1