PSOC datasheet(24/148 Pages) CYPRESS

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Cypress MicroSystems CY8C25122/CY8C26233/CY8C26443/CY8C26643 Family Data Sheet

Document #: 38-12010 CY Rev. ** CMS Rev. 3.20

September 5, 2002

Examples

2.3.8

Destination Direct Direct

The result of an instruction using this addressing mode is

placed within the RAM memory. Operand 1 is the

address of the result. Operand 2 is an address that

points to a location in the RAM memory that is the source

for the instruction. This addressing mode is only valid on

the MOV instruction. The instruction using this address-

ing mode is three bytes in length.

Example

2.3.9

Source Indirect Post Increment

The result of an instruction using this addressing mode is

placed in the Accumulator. Operand 1 is an address

pointing to a location within the memory space, which

contains an address (the indirect address) for the source

of the instruction. The indirect address is incremented as

part of the instruction execution. This addressing mode

is only valid on the MVI instruction. The instruction using

this addressing mode is two bytes in length. See Sec-

tion 7. Instruction Set

in PSoC Designer: Assembly

Language User Guide

for further details on MVI instruc-

tion.

Example

2.3.10 Destination Indirect Post Increment

The result of an instruction using this addressing mode is

placed within the memory space. Operand 1 is an

address pointing to a location within the memory space,

which contains an address (the indirect address) for the

destination of the instruction. The indirect address is

incremented as part of the instruction execution. The

source for the instruction is the Accumulator. This

addressing mode is only valid on the MVI instruction.

The instruction using this addressing mode is two bytes

in length.

Example

ADD

[X+7],

;In this case, the

;value in the memory

;location at address

;X+7 is added with

;the immediate value

;of 5, and the result

;is placed in the

;memory location at

;address X+7.

MOV

REG[X+8], 6

;In this case, the

;immediate value of 6

;is moved into the

;location in the

;register space at

;address X+8.

Table 20:

Destination Direct Direct

Opcode

Operand 1

Operand 2

Instruction

Destination Address Source Address

MOV

[7], [8]

;In this case, the value

;in the memory location at

;address 8 is moved to the

;memory location at

;address 7.

Table 21:

Source Indirect Post Increment

Opcode

Operand 1

Instruction

Source Address Address

MVI

[8]

;In this case, the value

;in the memory location at

;address 8 is an indirect

;address. The memory

;location pointed to by

;the indirect address is

;moved into the

;Accumulator. The

;indirect address is then

;incremented.

Table 22:

Destination Indirect Post Increment

Opcode

Operand 1

Instruction

Destination Address Address

MVI

[8],

;In this case, the

;value in the memory

;location at address 8

;is an indirect

;address. The

;Accumulator is moved

;into the memory

;location pointed to by

;the indirect address.

;The indirect address

;is then incremented.

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