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| author | Clifford Wolf <clifford@clifford.at> | 2015-06-07 20:59:20 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2015-06-07 20:59:20 +0200 |
| commit | 06ba3a1a574f1fae39d9a57ffe602b72143e3d2b (patch) | |
| tree | 1a33ba0266167871ea9d3445a473fe712d7dd02d | |
| parent | 34d9dea8c79e38c1abda85fdab5d2fcc75d6a218 (diff) | |
| download | picorv32-06ba3a1a574f1fae39d9a57ffe602b72143e3d2b.tar.gz picorv32-06ba3a1a574f1fae39d9a57ffe602b72143e3d2b.zip | |
README Updates
| -rw-r--r-- | README.md | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -26,9 +26,13 @@ For even smaller size it is possible disable support for registers `x16`..`x31` well as `RDCYCLE[H]`, `RDTIME[H]`, and `RDINSTRET[H]` instructions, turning the processor into an RV32E core. +Furthermore it is possible to choose between a single-port and a dual-port +register file implementation. The former provides better performance while +the latter results in a smaller core. + *Note: In architectures that implement the register file in dedicated memory -resources, such as many FPGAs, disabling the 16 upper registers may not further -reduce the core size.* +resources, such as many FPGAs, disabling the 16 upper registers and/or +disabling the dual-port register file may not further reduce the core size.* The core exists in two variations: `picorv32` and `picorv32_axi`. The former provides a simple native memory interface, that is easy to use in simple |