Comments (2)
Hi
LSU localparam DEPTH shouldn't be changed because there is nothing which is memorizing outstanding access information for different load instructions to be used when corresponding response will come (like GPR number to be updated or load type).
The only case when 2 outstanding requests could be sent away is for 1 misaligned load where both data will be merged to write the destination GPR.
On Prefetch Buffer side, localparam FIFO_DEPTH can be changed to any power of 2 value.
from cv32e40p.
Hi LSU localparam DEPTH shouldn't be changed because there is nothing which is memorizing outstanding access information for different load instructions to be used when corresponding response will come (like GPR number to be updated or load type). The only case when 2 outstanding requests could be sent away is for 1 misaligned load where both data will be merged to write the destination GPR.
On Prefetch Buffer side, localparam FIFO_DEPTH can be changed to any power of 2 value.
Thanks very much for your reply!
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Related Issues (20)
- Help needed: Integration of cvFPU with cv32e40p and adding a custom instruction HOT 5
- HW Loop Constraints question HOT 5
- Error in Analysis and Synthesis in Quartus HOT 21
- Missing files HOT 3
- Seeking Information on RTL Access HOT 8
- Incorporating FPU HOT 2
- Suggested update to the FPGA Synthesis sub-section of the User Manual HOT 1
- cv32e40p_obi_interface: When TRANS_STABLE=0, unstable transaction can still pass through to obi interface. HOT 4
- Branch predictor in cv32e40p core will take more time. HOT 8
- cv32e40p_prefetch_buffer: Is it ok to assert hwlp_jump_i when there are no outstanding instr_ requests (ie cnt_q == 0)? HOT 4
- How can I build this core? HOT 2
- cv32e40p implementation on Arty a7 100T FPGA HOT 2
- Missing case default HOT 1
- Impossible to cover case default HOT 1
- FPU power consumption HOT 1
- Clarification on cv.clipr signedness HOT 2
- HWLoop count not updated when last instruction is a CSR access with pipeline flush HOT 1
- Ensure Makefiles support both SNPS VCS and Siemens Questa for the above HOT 1
- Code coverage report HOT 4
- Floating Point Unit (FPU) not working HOT 1
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