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| sxpert | daveshah: https://github.com/sxpert/hp-saturn/blob/master/hp48_02_sys_ram.v | 00:03 |
|---|---|---|
| tpb | Title: hp-saturn/hp48_02_sys_ram.v at master · sxpert/hp-saturn · GitHub (at github.com) | 00:03 |
| sxpert | seems to be fixed | 00:03 |
| sxpert | ah, there's still something wrong though | 00:04 |
| sxpert | now, to debug what next_pnr states is "ERROR: timing analysis failed due to presence of combinatorial loops, incomplete specification of timing ports, etc." | 00:25 |
| daveshah | sxpert: what happens if you grep the Yosys output for DLATCH? | 00:29 |
| sxpert | https://pastebin.pl/view/a006eee3 | 00:46 |
| tpb | Title: Untitled - Pastebin (at pastebin.pl) | 00:46 |
| sxpert | this | 00:46 |
| sxpert | ah, it complains about bus nibble_out[3:0] | 00:57 |
| sxpert | guess I see why... | 00:58 |
| sxpert | will have to do that some other way... | 00:58 |
| sxpert | always @(*) | 00:58 |
| sxpert | appears evil | 00:59 |
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| promach_ | finnb ZipCPU: I have summarized the verilog code issues at https://stackoverflow.com/questions/54602127/problem-with-seeing-internal-generate-variable-and-coverage-failed-issue-with-si | 01:08 |
| tpb | Title: Problem with seeing internal generate variable and coverage failed issue with signed multiplication verilog code - Stack Overflow (at stackoverflow.com) | 01:08 |
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| ZipCPU | promach_: The tools are open source. The standard is on line. The VCD format is public/published. Why not dig into the problem and figure out what's going on for yourself? | 03:10 |
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| sxpert | daveshah: there, all fixed (after a good night sleep) | 08:48 |
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| promach_ | ZipCPU : I have made cover(in_valid) passed | 09:21 |
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| ZipCPU | promach_: What was the issue? | 12:36 |
| promach_ | I did a couple of changes | 12:37 |
| promach_ | not sure which one got it work | 12:37 |
| ZipCPU | Go on | 12:37 |
| promach_ | ZipCPU: see the diff for the current revision of multiply.v https://gist.github.com/promach/5f2d9a9494704ed93cf65687c982198c | 12:37 |
| tpb | Title: A signed multiply verilog code using row adder tree multiplier and modified baugh-wooley algorithm · GitHub (at gist.github.com) | 12:37 |
| promach_ | ZipCPU: shall we discuss later ? you can leave message here. I will be able to see them later | 12:38 |
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| ZipCPU | Looks like voodoo changes to me. "Voodoo computing, n: to change what isn't broken in an effort to fix what is" | 12:40 |
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