Infineon TriCore TC1.6P User Manual

TriCore
®
TC1.6P & TC1.6E
32-bit Unified Processor Core
Instruction Set Overview
V1.0 2013-07
User Manual (Volume 2) 2-5
Figure 2-2 EXTR Operation
Figure 2-3 EXTR.U Operation
DEXTR
The DEXTR instruction concatenates two data register sources to form a 64-bit value from which 32 consecutive
bits are extracted. The operation can be thought of as a left shift by pos bits, followed by the truncation of the least-
significant 32-bits of the result. The value of pos is contained in a data register, or is an immediate value in the
instruction.
The DEXTR instruction can be used to normalize the result of a DSP filter accumulation in which a 64-bit
accumulator is used with several guard bits. The value of pos can be determined by using the CLS (Count Leading
Signs) instruction. The DEXTR instruction can also be used to perform a multi-bit rotation by using the same
source register for both of the sources (that are concatenated).
Figure 2-4 DEXTR Operation
TC1046B
Source Registers
31 0
S
Destination Register
31 0
Sign Fill
Width
Pos
S
S
TC1045B
Source Registers
31 0
Destination Register
31 0
Zero fill
Width
Pos
0
TC1047B
Source Registers
63
0
Destination Register
31
0
Pos
32 31

Infineon TriCore TC1.6P Specifications

General

Brand	Infineon
Model	TriCore TC1.6P
Category	Microcontrollers
Language	English