发明名称 |
Data processor providing fast break in program execution |
摘要 |
A circuit by which an SWI instruction held in a memory circuit is switchedly input in response to a signal supplied externally is provided in a processor, whereby the substitution of a program word can be realized using such an internal circuit, so that a high-speed and reliable break in program execution can be effected. Moreover, an interrupt function separate from normal interrupts is established by setting a specified operation mode, whereby, when a data processor is used as an emulator, the break of a user program including the ordinary interrupt processes can be easily effected by utilizing the special interrupt function. Also, by additionally providing the function of delivering out a signal indicative of the break status, an external circuit can be simplified.
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申请公布号 |
US5493659(A) |
申请公布日期 |
1996.02.20 |
申请号 |
US19900626740 |
申请日期 |
1990.12.13 |
申请人 |
HITACHI, LTD. |
发明人 |
KURAKAZU, KEIICHI;AOTO, YOSHIKAZU;BABA, SHIRO;MASUDA, SATOSHI;KIDA, HIROYUKI;KAWASHIMA, SHINJI;NARUSE, YOSHIAKI |
分类号 |
G06F11/36;(IPC1-7):G06F9/44;G06F9/46 |
主分类号 |
G06F11/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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