EasyManuals Logo

Texas Instruments TMS320C28x User Manual

Texas Instruments TMS320C28x
695 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #385 background imageLoading...
Page #385 background image
MPY ACC, T, loc16
6-228
MPY ACC, T, loc16 16 X 16-bit Multiply
SYNTAX OPTIONS OPCODE OBJMODE RPT CYC
MPY ACC,T,loc16 0001 0010 LLLL LLLL X 1
Operands ACC Accumulator register
T Multiplicand register
loc16 Addressing mode (see Chapter 5)
Description Multiply the signed 16-bit content of the T register by the signed 16-bit
contents of the location pointed to by the “loc16” addressing mode and store
the result in the ACC register:
ACC = signed T * signed [loc16];
Flags and
Modes
Z After the operation, the Z flag is set if the ACC is zero, else Z is cleared.
N After the operation, the N flag is set if bit 31 of the ACC is 1, else N is
cleared.
Repeat This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example
; Calculate signed using 16-bit multiply:
; Y32 = Y32 + X16*M16
MOV T,@X16 ; T = X16
MPY ACC,T,@M16 ; ACC = T * M16
ADDL @Y32,ACC ; Y32 = Y32 + ACC

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Texas Instruments TMS320C28x and is the answer not in the manual?

Texas Instruments TMS320C28x Specifications

General IconGeneral
BrandTexas Instruments
ModelTMS320C28x
CategoryProcessor
LanguageEnglish

Related product manuals