參數資料
型號: RX78K4
英文描述: 78K/IV Series Real-Time OS Fundamental | User's Manual[01/1997]
中文描述: 78K/IV系列實時操作系統(tǒng)的基本|用戶手冊[01/1997]
文件頁數: 32/96頁
文件大小: 265K
代理商: RX78K4
CHAPTER 3 RX78K/IV BASIC OPERATIONS AND CONTROL BLOCKS
23
Register bank 1 is shared by multiple tasks. Therefore, dispatching or preempting make it necessary for registers
to be saved or restored. This causes the overhead of these tasks to be slightly larger than the tasks allocated to
register banks 2 to 7.
Fig. 3-2 shows the flow of the processing to be performed since the system call has been issued until control is
returned to the bank.
Fig. 3-2 Flow of Overall Processing
Task
Issurance of system call
RX78K/IV
Selected task
Processing system call
Save registers, etc.
(when using RB1)
Dispatch
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