发明名称 |
Selective shadowing of registers for interrupt processing |
摘要 |
Interrupts are prioritized such that selected interrupts use shadow registers to save the current state of the machine, whereas other interrupts use a software implemented interrupt service routine (ISR) to save and restore the current machine state. Hence, the number of nested interrupts that can be serviced will not be limited to the depth of register shadowing.
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申请公布号 |
US5642516(A) |
申请公布日期 |
1997.06.24 |
申请号 |
US19940324077 |
申请日期 |
1994.10.14 |
申请人 |
CIRRUS LOGIC, INC. |
发明人 |
HEDAYAT, SHAHIN;MANDAVA, SURENDRA |
分类号 |
G06F13/26;(IPC1-7):G06F13/32;G06F13/24 |
主分类号 |
G06F13/26 |
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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