programmerjake

programmerjake created branch speed-up-interning in programmerjake/fayalite

2026-02-03 01:53:07 +00:00

programmerjake pushed to speed-up-interning at programmerjake/fayalite

2026-02-03 01:53:07 +00:00

a96efa9696 cache interned UInt/SInt types

4ac1bcbc0a change Interner to use a sharded hash table

39810043ea move Interner into new mod interner

26b0dc3fd8 change Interner to pub(crate)

11281a9842 add a thread-local cache when using TypeIdMap

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programmerjake commented on issue libre-chip/grant-tracking#12

2026-01-29 02:23:38 +00:00

NLnet 2024-12-324 Create the PowerISA decoder

I'm considering this complete. A description of what is implemented: libre-chip/cpu#7 (comment)

programmerjake closed issue libre-chip/grant-tracking#12

2026-01-29 02:23:38 +00:00

NLnet 2024-12-324 Create the PowerISA decoder

programmerjake deleted branch add-powerisa-decoder from programmerjake/cpu

2026-01-29 02:22:15 +00:00

programmerjake merged pull request libre-chip/cpu#7

2026-01-29 02:22:14 +00:00

add PowerISA decoder

programmerjake pushed to master at libre-chip/cpu

2026-01-29 02:22:14 +00:00

f88346ea37 implement decoding mtspr/mfspr/mftb

a42b76b468 implement decoding all rotate instructions

130c1b2892 change CommonMOp to directly contain a generic immediate type

167bc4b6a6 implement decoding extswsli[.]

faa8dde774 reduce the number of wires to have one per form/field pair instead of one per insn/field pair

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programmerjake commented on pull request libre-chip/cpu#7

2026-01-29 02:22:00 +00:00

add PowerISA decoder

The decoder handles decoding either 32 or 64-bit (prefixed) instructions, and for each instruction generates 0-3 µOps:

no-ops decode to 0 µOps
most instructions decode to 1…

programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-29 01:35:24 +00:00

f88346ea37 implement decoding mtspr/mfspr/mftb

programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-28 03:20:27 +00:00

a42b76b468 implement decoding all rotate instructions

130c1b2892 change CommonMOp to directly contain a generic immediate type

167bc4b6a6 implement decoding extswsli[.]

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-27 00:13:45 +00:00

faa8dde774 reduce the number of wires to have one per form/field pair instead of one per insn/field pair

1db65ae753 implement decoding shifts: s[lr][wd][.] and sra[wd][i][.]

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-26 04:35:17 +00:00

59874b9b29 add shift/rotate MOp definition

2ad469e331 simplify getting IMM_WIDTH for LogicalFlagsMOpImm

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-25 23:07:05 +00:00

0824b63d31 implement decoding 8/16/32/64-bit store instructions -- all of Power ISA v3.1c Book I 3.3.3

programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-24 00:08:05 +00:00

706d54ae0d implement decoding 8/16/32/64-bit load instructions -- all of Power ISA v3.1C Book I 3.3.2

programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-23 20:13:20 +00:00

d361a2b578 make LogicalFlagsMOp also copy the dest PRegValue.flags into PRegValue.int_fp

aa07e24c78 make check-copyright.sh also handle other tests/.../expected/... files

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-23 19:47:25 +00:00

29757a568c implement decoding mcrf

33529a2296 implement decoding condition register logical instructions

5e9d0957f6 reorder the decoder test cases to match the PowerISA v3.1C PDF

fc8a6cd959 split up tests/simple_power_isa_decoder into separate modules

87112c681a move simple_power_isa_decoder integration test into its own folder

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-22 16:29:24 +00:00

e6f876f9af fix & clean up MOp definitions and ensure_reg_fields_are_in_the_same_place

programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-22 15:35:19 +00:00

9b8d99e9af implement decoding mcrxrx

ffc3d4283c refactor PRegFlags to use view structs instead of a long list of accessor methods

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-21 00:20:59 +00:00

0433e4f8f1 mark .vcd files as generated

a93dca25ac extract lut out into separate Lut4 type and add test

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programmerjake pushed to add-powerisa-decoder at programmerjake/cpu

2026-01-20 06:39:38 +00:00

85ada6e55a add tests for and fix decoding branch instructions