Individual Instruction Descriptions

4.14.3 ADDS

Add String

 

 

 

 

Syntax

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[label]

name

dest, src, src1

Clock, clk

Words, w

With RPT, clk

Class

 

 

 

 

 

 

 

 

 

 

ADDS

An[~], An, {adrs}

Table 4±46

Table 4±46

Table 4±46

1a

 

 

 

 

 

 

 

 

 

 

ADDS

An[~], An[~], pma16

nS+4

2

N/R

2b

 

 

ADDS

An[~], An~, An

nS+2

1

nR+2

3

 

 

ADDS²

An[~], An[~], PH

1

1

1

3

²This instruction ignores the string count, executing only once but maintains the CF and ZF status of the previous multi- ply or shift operation as if the sequence was a single string. This instruction should immediately follow one of the fol- lowing class 1b instructions: MOVAPH, MULAPL, MULSPL, SHLTPL, SHLSPL, and SHLAPL. An interrupt should not occur between one of these instructions and ADDS. An interrupt may cause incorrect results. Interrupts must be explicitly disabled at least one instruction before the class 1b instruction. This special sequence is protected inside a BEGLOOP ± ENDLOOP construct. In addition, single stepping is not allowed for this instruction. An in this instruc- tion should be the same as An in one of the listed class 1b instruction. Offsets are allowed. See Section 4.8 for more detail.

Execution

dest string ⇐

src string + src1 string

 

 

 

 

 

 

 

 

 

 

 

 

PC ⇐ PC + w

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flags Affected

dest is An:

 

 

 

OF, SF, ZF, CF are set accordingly

 

 

 

 

 

src1 is {adrs}:

 

 

TAG is set accordingly

 

 

 

 

 

 

 

 

 

Opcode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Instructions

 

16

15

14

13

12

 

11

10

9

 

8

7

 

6

5

4

 

3

2

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADDS An[~], An, {adrs}

 

0

0

0

0

~A

 

1

1

 

An

 

 

 

 

 

adrs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x

 

dma16 (for direct) or offset16 (long relative) [see section 4.13]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADDS An[~], An[~], pma16

1

1

1

0

0

 

1

1

 

An

0

 

0

0

0

 

0

1

A~

 

~A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x

 

 

 

 

 

 

 

 

 

pma16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADDS An[~], An~, An

 

1

1

1

0

0

 

1

1

 

An

0

 

0

1

0

 

1

0

A~

 

~A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADDS An[~], An[~], PH

 

1

1

1

0

0

 

1

1

 

An

0

 

1

1

0

 

1

0

A~

 

~A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

Add value of src string to the value of src1 string and store resulting string in

 

dest. String length minus two should be stored in STR before execution.

 

See Also

ADD, ADDB, SUB, SUBB, SUBS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Example 4.14.3.1

ADDS A0, A0~, *R2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Add data memory string beginning at address in R2 to accumulator string A0~, put result in accumulator string A0.

Example 4.14.3.2 ADDS A0, A0~, 0x1400

Add program memory string beginning at address 0x1400 to accumulator string A0~, put result in accumulator string A0.

4-78

Page 169 Page 171
Page 170
Image 170
Texas Instruments MSP50C614 manual Adds Add String, Clock , clk Words , w
Page 169 Page 171

MSP50C614 specifications

The Texas Instruments MSP50C614 is a microcontroller that belongs to the MSP430 family, renowned for its low power consumption and versatile functionality. Primarily designed for embedded applications, this microcontroller is favored in various industries, including consumer electronics, industrial automation, and healthcare devices.

One of the standout features of the MSP50C614 is its ultra-low power technology, which enables it to operate in various power modes. This makes it ideal for battery-powered applications, where energy efficiency is crucial. The MSP430 architecture allows for a flexible power management system, ensuring that energy is conserved while providing robust performance.

The MSP50C614 is equipped with a 16-bit RISC CPU that delivers high performance while maintaining low power usage. With a maximum clock frequency of 16 MHz, it can execute most instructions in a single cycle, resulting in swift operation and responsive performance. This microcontroller also comes with a generous flash memory capacity, allowing developers to store large amounts of code and data conveniently.

In terms of peripherals, the MSP50C614 is highly versatile. It features a range of digital and analog input/output options, including multiple timers, GPIO ports, and various communication interfaces like UART, SPI, and I2C. This extensive set of peripherals allows for seamless integration with other components and simplifies the design of complex systems.

The integrated 12-bit Analog-to-Digital Converter (ADC) stands out as a valuable characteristic of the MSP50C614. This feature enables the microcontroller to convert physical analog signals into digital data, making it particularly useful for sensing applications and real-time monitoring.

Another noteworthy technology employed in the MSP50C614 is its support for low-voltage operations. With a broad supply voltage range, this microcontroller can function efficiently in diverse environments and is suitable for low-power applications, enhancing its practicality.

Moreover, Texas Instruments provides software support in the form of Code Composer Studio and various libraries that make it easier for developers to program and utilize the MSP50C614 effectively.

In summary, the Texas Instruments MSP50C614 microcontroller is a powerful, low-power solution equipped with the features and technologies necessary for efficient operation in a wide array of applications. Its blend of performance, flexibility, and energy efficiency makes it a popular choice among engineers and designers looking to create innovative, sustainable designs in the rapidly evolving tech landscape.
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