ST20CX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST20CX

Instruction Set Reference Manual

STMicroelectronics 

jn

jn

jump

Code: Function 0

Description: Unconditional relative jump. The destination of the jump is expressed as

a byte offset from the first byte after the current instruction. j 0 causes a breakpoint.

Definition:

if (n = 0)

Take a breakpoint trap

else

Iptr′ ← next instruction + n

Areg′ ← undefined

Breg′ ← undefined

Creg′ ← undefined

Error signals: j 0 can cause a breakpoint trap to be signalled.

Comments:

Primary instruction.

Instruction is a descheduling point.

Instruction is a timeslicing point.

See also: cj lend

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