Multi-tasking processor for control of automation systems - has register block stalk for tasks controlled by selector unit providing highest priority selection

摘要

The multitasking computer system has a processor (1) and a register bank selector (2). The processor consists essentially of a controller (3) and a number of registers (4), each having a programme counter (5) and a stalk pointer (6). The register banks can be assigned to a range of different tasks. The selector is based around a task monitor (7) and a task organiser (8). The monitor has a status register (9), mask register (10), selector (10), and flag register (12). The organiser has a task register (13), command stage (14) and a gate (15). ADVANTAGE - Provides rapid and simple changes in automation systems.