[libre-riscv-dev] daily kan-ban update 06jul2020

Luke Kenneth Casson Leighton lkcl at lkcl.net
Mon Jul 6 19:29:13 BST 2020


* more on trap and spr pipeline unit tests
* added OP_MTMSR, simulator needs mtmsrd
* big reorganisation of PowerDecode2


* started on a basic version of MUL pipeline just to get something working.

ran immediately into multiply signed issues with the simulator (actually,
the simulator pseudocode) for mulli.

turns out that again, retrospectively, the 3.0B spec says "actually after
you did that multiply, really the operands should be signed".


crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

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