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Make CSR Content Addressable #12

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opened 2025-03-08 00:10:54 +00:00 by Yehowshua · 1 comment
Yehowshua commented 2025-03-08 00:10:54 +00:00
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You only need about 50 or 60 64 bit CSR regs to support full RiscV spec. So no need to have 4096 entry CSR. To make this work in practice however, the CSR need to be content addressable... This also means we need to have some sort of exception for "CSR does not exist"

You only need about 50 or 60 64 bit CSR regs to support full RiscV spec. So no need to have 4096 entry CSR. To make this work in practice however, the CSR need to be content addressable... This also means we need to have some sort of exception for "CSR does not exist"
Yehowshua commented 2025-03-08 00:12:07 +00:00
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The closest we can get to "CSR does not exist" is perhaps "Illegal Instruction Exception"

The closest we can get to "CSR does not exist" is perhaps "Illegal Instruction Exception"
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Reference: Yehowshua/RiscV-Formal#12
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