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AS3661

Datasheet - D e t a i l e d D e s c r i p t i o n

8.15 Arithmetic Instructions

8.15.1 LD

This instruction is used to assign a value into a variable; the previous value in that variable is overwritten. Each of the

engines have two local variables, called A and B. The variable C is a global variable which is shared with all three

program execution engines.

COMPILER COMMAND SYNTAX: LD, Target Variable[2];

8.15.1.1 LD Application Example

In this example we want to load variable B with a value of 100;

COMPILER COMMAND SYNTAX EXAMPLE: LD, 1, 100;

8.15.2 ADD (Numerical Operands)

Operator either adds the 8-bit value to the current value of the target variable.

COMPILER COMMAND SYNTAX: ADN, Target Variable,[2], 8-Bit value[8];

8.15.2.1 ADN Application Example

In this example we would like to add a value of100 d to variable ‘A’, which is loaded with a value of 10d. The result of

the operation is 110d stored in variable ‘A’.

COMPILER COMMAND SYNTAX EXAMPLE: ADN, 0, 100;

8.15.3 ADD (Variables)

This command adds the value of the variable 1 (A, B, C or D) to the value of the variable 2 (A, B, C or D) and stores the

result in the register of variable A, B or C which is defined as target variable. Variables overflow from 255 to 0.

Table 91. LD Parameter Description

Name

Value

Description

Target Variable

0-2

variable A

variable B

variable C

8-bit value

0-255

variable value

Table 92. ADN Parameter Description

Name

Value

Description

8-bit value

0-255

Variable value

Target Variable

0-2

variable A

variable B

variable C

Variable1

0-3

local variable A

local variable B

global variable

Variable2

0-3

local variable A

local variable B

global variable

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