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G.1 instructions executing with no unit specified, G.2 opcode map symbols and meanings – Texas Instruments TMS320C67X/C67X+ DSP User Manual

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Instructions Executing With No Unit Specified

No Unit Specified Instructions and Opcode Maps

G-2

SPRU733

G.1 Instructions Executing With No Unit Specified

Table G−1 lists the instructions that execute with no unit specified.

Table G−1. Instructions Executing With No Unit Specified

Instruction

IDLE

NOP

G.2 Opcode Map Symbols and Meanings

Table G−2 lists the symbols and meanings used in the opcode maps.

Table G−2. No Unit Specified Instructions Opcode Map Symbol Definitions

Symbol

Meaning

creg

3-bit field specifying a conditional register

csta

constant a

cstb

constant b

cstn

n-bit constant field

ii

n

bit n of the constant ii

N3

3-bit field

op

opfield; field within opcode that specifies a unique instruction

p

parallel execution; 0 = next instruction is not executed in parallel, 1 = next instruction is
executed in parallel

s

side A or B for destination; 0 = side A, 1 = side B.

stg

n

bit n of the constant stg

z

test for equality with zero or nonzero

Instructions Executing With No Unit Specified / Opcode Map Symbols and Meanings