ST20-C1 STMICROELECTRONICS [STMicroelectronics], ST20-C1 Datasheet - Page 192

• Manufacturer Part Number: ST20-C1
• Description: Instruction Set Reference Manual
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Pointer
Prefix
Primary instruction
Priority
Procedure
Process
Process descriptor block
Process pointer
Queue
Real time operating system
Register cache
Register file
RTOS
Scheduler
192/205
An address .
An instruction component used to extend the data value of the following instruction
component. There are two prefixes - pfix (function code #2) which preserves the
sign and nfix (function code #6) which complements the data value and so
changes the sign.
One of thirteen directly coded instructions which therefore do not require an
operate instruction component. A primary instruction has a data part associated
with it, called the operand. cf. secondary instruction .
A value associated with each process or interrupt which is used to make choices
when conflicts occur .
A named section of code which may have parameters.
A sequential algorithm and data which can run in parallel with other
processes.Processes are also known as tasks or threads. Each process is identi-
fied b y a task descriptor which points to a process descriptor block.
A data structure defining a process , including the saved instruction pointer ,
workspace pointer and a link used for queuein g processes.
A pointer to a process .
A linked list.
An operating system providing facilities for real-time programming, including multi-
tasking and interrupt handling.
Registers used to cache the lowest words of the work space in order to accelerate
access to local variables. Also called work space cache or register file .
See register cache .
Real-time operating system .
Code or hardware which controls how processes share CPU time.