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219 Commits

Author SHA1 Message Date
David Harris
29f41c6792 Continued simplifying fdivsqrt postprocessing 2022-09-07 07:02:22 -07:00
David Harris
461b9d370d Continued simplifying fdivsqrt postprocessing 2022-09-07 07:00:13 -07:00
David Harris
825d3169d9 Moving postprocessing into postproc block 2022-09-07 06:42:37 -07:00
David Harris
f40c6b0ec4 fdivsqrtfsm cleanup 2022-09-07 06:32:07 -07:00
David Harris
a0abe48ad2 fdivsqrtfsm cleanup 2022-09-07 06:27:01 -07:00
David Harris
8438546d52 Fixed regression for divsqrt radix2 2022-09-07 06:12:23 -07:00
David Harris
648a3aae09 Initial radix 4 square root debuggin 2022-09-01 16:57:57 -07:00
David Harris
247ce70348 Fixed lint errors in square root and improved waveforms in testfloat 2022-09-01 15:49:13 -07:00
David Harris
8fad5073cd fdiv debug 2022-08-31 14:26:31 -07:00
David Harris
e64f41f199 Checking in radix 4 square root with qsel, fgen, softc, but not working 2022-08-31 10:54:50 -07:00
David Harris
5956fbdd62 Fixed checking termination in testfloat testbench 2022-08-30 10:55:21 -07:00
David Harris
cb54e95285 commented out lines to have divider work again 2022-08-29 13:01:32 -07:00
David Harris
7b0e43bc10 Initial FDIVSQRT simplification working 2022-08-29 12:01:09 -07:00
David Harris
16cde5f87e Simplify FSM 2022-08-29 04:32:27 -07:00
David Harris
6961e499dc Renamed special case 2022-08-29 04:29:58 -07:00
David Harris
81ec1ac858 Separated out radix 2 and radix 4 stages into different modules 2022-08-29 04:26:14 -07:00
David Harris
b4cb9a678a renamed srt to fdivsqrt 2022-08-29 04:04:05 -07:00
David Harris
8b2e368805 Only stall FPU to IEU on convert instructions with dependencies 2022-08-23 12:57:18 -07:00
David Harris
113258a0d0 Cleaned up fcvt selection control to IEU and FPUIllegalInst signals 2022-08-23 12:17:19 -07:00
David Harris
746842107b Improved illegal instruction checking in FPU 2022-08-23 11:08:02 -07:00
David Harris
46f30d3dbe Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-23 10:14:59 -07:00
David Harris
13831aa3d3 typo in srtfsm 2022-08-23 10:14:54 -07:00
Katherine Parry
f9aa94f87b Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-23 16:36:32 +00:00
Katherine Parry
72a54ef621 renamed rounding bits to L,G,R,S and fixed lint warning 2022-08-23 16:36:20 +00:00
Ross Thompson
b0606a1699 Replaced FPU data replicaiton on WriteData bus with 0 extention. 2022-08-23 10:46:03 -05:00
David Harris
34eece10b8 Finished FPU-LSU interface cleanup 2022-08-22 13:43:04 -07:00
David Harris
fffad8b314 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-22 13:28:54 -07:00
David Harris
2170203847 Simplified FPU-LSU interface to skip IEU 2022-08-22 13:28:51 -07:00
Katherine Parry
a1f0c6c598 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-22 17:16:25 +00:00
Katherine Parry
1accb92745 sqrt passes - lint warnings remain 2022-08-22 17:16:12 +00:00
David Harris
1404d1c248 moved CSA to generic 2022-08-22 08:41:23 +00:00
Katherine Parry
617dc02d01 fixed -1 issue in division 2022-08-20 00:53:45 +00:00
Katherine Parry
0f077012c3 sqrt tests in regression uncommented and pass 2022-08-07 23:38:10 +00:00
Katherine Parry
8eeca3319c radix-2 1 copy passes testfloat 2022-08-06 22:54:05 +00:00
Katherine Parry
8f1d8669b0 fixed fsw problem and removed 2 bit shift from shift correction 2022-08-03 22:16:51 +00:00
David Harris
b13cdf79b3 FMA cleanup 2022-08-02 07:42:32 -07:00
David Harris
d3e39763b6 Moved InvA to sign block; simplified fmaexpadd coding 2022-08-02 07:34:09 -07:00
David Harris
0482bf4fc0 merged lza back into main 2022-08-01 19:45:21 -07:00
David Harris
0b95ca129c Fixed fmaadd to work with new LZA 2022-08-01 19:40:55 -07:00
David Harris
8b44037f58 Parameterized fmalza 2022-08-01 16:18:02 -07:00
David Harris
6e78b46761 Completed LZA simplificaiton 2022-08-01 16:13:16 -07:00
David Harris
76021769a7 lza cleanup 2022-08-01 16:01:02 -07:00
David Harris
47d204f4a2 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-01 15:47:58 -07:00
David Harris
c8d4f3a542 lza cleanup 2022-08-01 15:47:03 -07:00
David Harris
c531df9c4e lza cleanup 2022-08-01 15:43:48 -07:00
David Harris
5468a90cf3 lza cleanup 2022-08-01 15:40:12 -07:00
David Harris
4953ccf273 lza cleanup 2022-08-01 15:37:09 -07:00
Katherine Parry
66eca28ccd regression passes fpu tests 2022-08-01 19:56:25 +00:00
David Harris
31215277ee more lza cleanup 2022-08-01 12:34:00 -07:00
David Harris
48500c642c LZA cleanup 2022-08-01 12:30:42 -07:00
David Harris
87e6402af6 LZA refactoring switched to Pp1, Gm1, Km1 2022-08-01 12:20:23 -07:00
David Harris
5012b96120 LZA refactoring 2022-08-01 11:36:21 -07:00
David Harris
231f52c1fd fmalza edits to match textbook 2022-08-01 18:23:39 +00:00
David Harris
e3b970d3ff Partitioned fma into separate files 2022-08-01 18:07:38 +00:00
Katherine Parry
bd336f18b3 merged radix-2 sqrt into divider - doesnt work yet 2022-07-23 00:41:18 +00:00
Katherine Parry
ee7932c804 divider sizes reworked to match book 2022-07-22 22:02:04 +00:00
Katherine Parry
270216dd02 radix-4 division integrated into srt - not tested 2022-07-21 19:38:06 +00:00
Katherine Parry
67c99d3d1a added input enables and improved forwarding 2022-07-21 01:20:06 +00:00
Katherine Parry
e8c9830b88 turn off 2 word store durring non-fp instructions 2022-07-20 21:57:23 +00:00
Katherine Parry
fb890d621d moved ctrl signal registers into fctrl, also a lot of code cleaning 2022-07-20 02:27:39 +00:00
cturek
db39a05abc small changes 2022-07-20 01:36:25 +00:00
Katherine Parry
afcddf7035 oprimized zeros and replaced complex ?: with always_comb 2022-07-19 23:44:37 +00:00
Katherine Parry
4c2afbbc4f moved Se into execute stage 2022-07-19 01:10:10 +00:00
Katherine Parry
a590728350 reworked fmashiftcalc to match book 2022-07-19 00:04:24 +00:00
David Harris
59eb11b73a Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-18 23:11:12 +00:00
Katherine Parry
e599f82b29 moved Ss to execute stage 2022-07-18 20:48:56 +00:00
Katherine Parry
921debf930 removed underflow from inexactct calculation 2022-07-18 17:51:18 +00:00
Katherine Parry
5bb1478859 renamed signals in ocde to match book 2022-07-18 17:31:17 +00:00
David Harris
7c744f0053 Rewrote convert shift calculation with always for ease of reading 2022-07-17 16:40:58 +00:00
Katherine Parry
a4cd157f00 forgot some files 2022-07-15 21:42:45 +00:00
Katherine Parry
e251022269 merged floating-point radix-2 divider with radix-4 2022-07-15 20:16:59 +00:00
Katherine Parry
b069cfbec2 fixed error in divsqrt 2022-07-14 18:16:00 +00:00
Katherine Parry
e5a8ac2a44 renamed a file to fit diagram 2022-07-13 23:44:54 +00:00
Katherine Parry
7e163e22a3 some code cleanup 2022-07-13 15:28:22 -07:00
Katherine Parry
77ea4e47cb removed minus 1 case in rounding 2022-07-13 15:01:38 -07:00
Katherine Parry
26e39dd325 removed the +1 in the cvt 2022-07-13 09:41:35 -07:00
Katherine Parry
e05b2a07d2 removed warnings and took a mux out of the critical path 2022-07-12 18:32:17 -07:00
Katherine Parry
2ada8a8bc1 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-12 22:37:20 +00:00
Katherine Parry
5c0ecfa433 forgot a file 2022-07-11 18:31:51 -07:00
Katherine Parry
b728e5054d variable interations implemented in radix-4 divider 2022-07-11 18:30:21 -07:00
Katherine Parry
ca4fe08fd9 renamed FLoad2 to FStore2 2022-07-09 00:26:45 +00:00
Katherine Parry
9ef45f36fd renamed signals in cvt and prostproc 2022-07-08 12:30:43 -07:00
Katherine Parry
905b7ffc84 moved unsused division code again 2022-07-07 16:41:26 -07:00
Katherine Parry
2bbde827e6 Revert "moved old divsqrt to unusedsrc" 
This reverts commit c9f5ae12ea.
 2022-07-07 16:29:17 -07:00
Katherine Parry
c9f5ae12ea moved old divsqrt to unusedsrc 2022-07-07 16:09:56 -07:00
Katherine Parry
41c16be012 srt divider merged into fpu 2022-07-07 16:01:33 -07:00
David Harris
4723ff559c Added reference to Schmookler01 for LOA 2022-07-05 05:01:12 +00:00
Katherine Parry
010a05f583 added missing files 2022-07-03 21:40:47 -07:00
Katherine Parry
1b4584e825 Renaming signals to match chapter 2022-07-03 12:26:22 -07:00
David Harris
bde1c5eb1b Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-02 19:37:14 +00:00
David Harris
52dbc9f8be FMA ZAligned name 2022-07-02 19:35:13 +00:00
Katherine Parry
575b73fa8c some prostprocessing cleanup 2022-07-01 14:55:46 -07:00
Katherine Parry
6baded9121 added rv32 double precision stores - untested 2022-06-28 21:33:31 +00:00
Katherine Parry
f2d05911ca very basic early termination passes testfloat 64-bit tests 2022-06-28 00:16:22 +00:00
Katherine Parry
f25bb4a384 radix-4 early termination working for special cases - not working completely 2022-06-27 20:43:55 +00:00
Katherine Parry
2d5d1f4e8f radix-4 divider passing all double precision testfloat tests 2022-06-27 17:04:51 +00:00
Katherine Parry
06f7f9b147 fixed commented out error and removed killprod from result selection 2022-06-25 01:42:23 +00:00
Katherine Parry
d16ae7c305 passing regression again 2022-06-25 00:31:32 +00:00
Katherine Parry
913a381442 commented out error - also some divider bugs fixed 2022-06-25 00:04:53 +00:00
Katherine Parry
c1b4e7fd2c modified result select to account for x/inf 2022-06-24 21:23:15 +00:00