From: lkcl Date: Fri, 24 Jun 2022 18:07:28 +0000 (+0100) Subject: (no commit message) X-Git-Tag: opf_rfc_ls005_v1~1544 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=afec47fd3e4ed1f0c4f8d017d47f5614b3afa537;p=libreriscv.git --- diff --git a/openpower/sv/sv/draft_opcode_tables.mdwn b/openpower/sv/sv/draft_opcode_tables.mdwn new file mode 100644 index 000000000..234ea405f --- /dev/null +++ b/openpower/sv/sv/draft_opcode_tables.mdwn @@ -0,0 +1,131 @@ +# summary + +two major opcodes are needed + +ternlog has its own major opcode + +| 29.30 |31| name | Form | +| ------ |--| --------- | ---- | +| 0 0 |Rc| ternlogi | TLI-Form | +| 0 1 | | crternlogi | TLI-Form | +| 1 iv | | grevlogi | TLI-Form | + +2nd major opcode for other bitmanip: minor opcode allocation + +| 28.30 |31| name | +| ------ |--| --------- | +| -00 |0 | xpermi | +| -00 |1 | binary lut | +| -01 |0 | grevlog | +| -01 |1 | swizzle mv/fmv | +| 010 |Rc| bitmask | +| 011 | | SVP64 | +| 110 |Rc| 1/2-op | +| 111 | | bmrevi | + + +1-op and variants + +| dest | src1 | subop | op | +| ---- | ---- | ----- | -------- | +| RT | RA | .. | bmatflip | + +2-op and variants + +| dest | src1 | src2 | subop | op | +| ---- | ---- | ---- | ----- | -------- | +| RT | RA | RB | or | bmatflip | +| RT | RA | RB | xor | bmatflip | +| RT | RA | RB | | grev | +| RT | RA | RB | | clmul\* | +| RT | RA | RB | | gorc | +| RT | RA | RB | shuf | shuffle | +| RT | RA | RB | unshuf| shuffle | +| RT | RA | RB | width | xperm | +| RT | RA | RB | type | av minmax | +| RT | RA | RB | | av abs avgadd | +| RT | RA | RB | type | vmask ops | +| RT | RA | RB | type | abs accumulate (overwrite) | + +3 ops + +* grevlog[w] +* GF mul-add +* bitmask-reverse + +TODO: convert all instructions to use RT and not RS + +| 0.5|6.10|11.15|16.20 |21..25 | 26....30 |31| name | Form | +| -- | -- | --- | --- | ----- | -------- |--| ------ | -------- | +| NN | RT | RA |it/im57|im0-4 | 0 00 00 |0 | xpermi | TODO-Form | +| NN | | | | | - -- 00 |0 | rsvd | rsvd | +| NN | RT | RA | RB | RC | nh 00 00 |1 | binlut | VA-Form | +| NN | RT | RA | RB | /BFA/ | 0 01 00 |1 | bincrflut | VA-Form | +| NN | | | | | 1 01 00 |1 | svindex | SVI-Form | +| NN | RT | RA | RB | mode | L 10 00 |1 | bmask | BM2-Form | +| NN | | | | | 0 11 00 |1 | svshape | SVM-Form | +| NN | | | | | 1 11 00 |1 | svremap | SVRM-Form | +| NN | RT | RA | RB | im0-4 | im5-7 01 |0 | grevlog | TLI-Form | +| NN | RT | RA | RB | im0-4 | im5-7 01 |1 | grevlogw | TLI-Form | +| NN | RT | RA | RB | RC | mode 010 |Rc| bitmask\* | VA2-Form | +| NN |FRS | d1 | d0 | d0 | 00 011 |d2| fmvis | DX-Form | +| NN |FRS | d1 | d0 | d0 | 01 011 |d2| fishmv | DX-Form | +| NN | | | | | 10 011 |Rc| svstep | SVL-Form | +| NN | | | | | 11 011 |Rc| setvl | SVL-Form | +| NN | | | | | ---- 110 | | 1/2 ops | other table [1] | +| NN | RT | RA | RB | RC | 11 110 |Rc| bmrev | VA2-Form | +| NN | RT | RA | RB | sh0-4 | sh5 1 111 |Rc| bmrevi | MDS-Form | + +[1] except bmrev + +ops (note that av avg and abs as well as vec scalar mask +are included here [[sv/vector_ops]], and +the [[sv/av_opcodes]]) + +| 0.5|6.10|11.15|16.20| 21 | 22.23 | 24....30 |31| name | Form | +| -- | -- | --- | --- | -- | ----- | -------- |--| ---- | ------- | +| NN | RS | me | sh | SH | ME 0 | nn00 110 |Rc| bmopsi | BM-Form | +| NN | RS | RA | sh | SH | 0 1 | nn00 110 |Rc| bmopsi | XB-Form | +| NN | RS | RA |im04 | im5| 1 1 | im67 00 110 |Rc| bmatxori | TODO | +| NN | RT | RA | RB | 1 | 00 | 0001 110 |Rc| cldiv | X-Form | +| NN | RT | RA | RB | 1 | 01 | 0001 110 |Rc| clmod | X-Form | +| NN | RT | RA | | 1 | 10 | 0001 110 |Rc| clmulh | X-Form | +| NN | RT | RA | RB | 1 | 11 | 0001 110 |Rc| clmul | X-Form | +| NN | RT | RA | RB | 0 | 00 | 0001 110 |Rc| rsvd | | +| NN | RT | RA | RB | 0 | 01 | 0001 110 |Rc| rsvd | | +| NN | RT | RA | RB | 0 | 10 | 0001 110 |Rc| rsvd | | +| NN | RT | RA | RB | 0 | 11 | 0001 110 |Rc| vec cprop | X-Form | +| NN | | | | | 00 | 0101 110 |0 | crfbinlog | {TODO} | +| NN | | | | | 00 | 0101 110 |1 | rsvd | | +| NN | | | | | 10 | 0101 110 |Rc| rsvd | | +| NN | | | | | -1 | 0101 110 |Rc| rsvd | | +| NN | RT | RA | RB | 0 | itype | 1001 110 |Rc| av minmax | X-Form | +| NN | RT | RA | RB | 1 | 00 | 1001 110 |Rc| av abss | X-Form | +| NN | RT | RA | RB | 1 | 01 | 1001 110 |Rc| av absu | X-Form | +| NN | RT | RA | RB | 1 | 10 | 1001 110 |Rc| av avgadd | X-Form | +| NN | RT | RA | RB | 1 | 11 | 1001 110 |Rc| grevlutr | X-Form | +| NN | RT | RA | RB | 0 | itype | 1101 110 |Rc| shadd | X-Form | +| NN | RT | RA | RB | 1 | itype | 1101 110 |Rc| shadduw | X-Form | +| NN | RT | RA | RB | 0 | 00 | 0010 110 |Rc| rsvd | | +| NN | RS | RA | sh | SH | 00 | 1010 110 |Rc| rsvd | | +| NN | RT | RA | RB | 0 | 00 | 0110 110 |Rc| rsvd | | +| NN | RS | RA | SH | 0 | 00 | 1110 110 |Rc| rsvd | | +| NN | RT | RA | RB | 1 | 00 | 1110 110 |Rc| absds | X-Form | +| NN | RT | RA | RB | 0 | 01 | 0010 110 |Rc| rsvd | | +| NN | RT | RA | RB | 1 | 01 | 0010 110 |Rc| clmulr | X-Form | +| NN | RS | RA | sh | SH | 01 | 1010 110 |Rc| rsvd | | +| NN | RT | RA | RB | 0 | 01 | 0110 110 |Rc| rsvd | | +| NN | RS | RA | SH | 0 | 01 | 1110 110 |Rc| rsvd | | +| NN | RT | RA | RB | 1 | 01 | 1110 110 |Rc| absdu | X-Form | +| NN | RS | RA | RB | 0 | 10 | 0010 110 |Rc| bmator | X-Form | +| NN | RS | RA | RB | 0 | 10 | 0110 110 |Rc| bmatand | X-Form | +| NN | RS | RA | RB | 0 | 10 | 1010 110 |Rc| bmatxor | X-Form | +| NN | RS | RA | RB | 0 | 10 | 1110 110 |Rc| bmatflip | X-Form | +| NN | RT | RA | RB | 1 | 10 | 0010 110 |Rc| xpermn | X-Form | +| NN | RT | RA | RB | 1 | 10 | 0110 110 |Rc| xpermb | X-Form | +| NN | RT | RA | RB | 1 | 10 | 1010 110 |Rc| xpermh | X-Form | +| NN | RT | RA | RB | 1 | 10 | 1110 110 |Rc| xpermw | X-Form | +| NN | RT | RA | RB | 0 | 11 | 1110 110 |Rc| absdacs | X-Form | +| NN | RT | RA | RB | 1 | 11 | 1110 110 |Rc| absdacu | X-Form | +| NN | | | | | | --11 110 |Rc| bmrev | VA2-Form | +