DP805X datasheet(71/79 Pages) DCD

Part #	DP805X

Description	Pipelined High Performance Microcontroller Instructions set details ver 3.10

PDF	79 Pages

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Manufacturer	DCD [Digital Core Design]

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DP805x Instructions set details

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3.39.

SJMP

Instruction:

SJMP rel

Function:

Short jump

Description:

Program control branches unconditionally to the address indicated. The

branch destination is computed by adding the signed displacement in

the second instruction byte to the PC, after incrementing the PC twice.

Therefore, the range of destinations allowed is from 128 bytes

preceding this instruction to 127 bytes following it.

Note:

Under the above conditions the instruction following SJMP will be at

102 H. Therefore, the displacement byte of the instruction will be the

relative offset (0123 H - 0102 H ) = 21 H . In other words, an SJMP with

a displacement of 0FE H would be a one-instruction infinite loop.

Operation:

(PC)

← (PC) + 2

(PC)

← (PC) + rel

Bytes:

Cycles:

Encoding:

relative address

DP805X Datasheet(PDF) 71 Page - Digital Core Design