Luke Kenneth Casson Leighton [Thu, 3 Sep 2020 07:45:23 +0000 (08:45 +0100)]
testing microwatt 3.bin (2.bin ok)
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 22:08:27 +0000 (23:08 +0100)]
when mtocrf FXM is 0, the CR has to be set to CR7
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 17:48:34 +0000 (18:48 +0100)]
fix bug in cmpli (and cmplw)
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 16:48:17 +0000 (17:48 +0100)]
sign-extend lhax needs 16-64, separate from lwax which is 32-64
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 16:38:03 +0000 (17:38 +0100)]
add bc ctr regression test when CTR=0 and CTR=1
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 14:13:31 +0000 (15:13 +0100)]
update submodule
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 14:13:22 +0000 (15:13 +0100)]
bug in carry32 handling in OP_CMP
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 14:13:06 +0000 (15:13 +0100)]
add cmpl regression test (one binary, one assembly)
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 11:44:15 +0000 (12:44 +0100)]
add cmpl microwatt 1.bin test, cmpl
Luke Kenneth Casson Leighton [Wed, 2 Sep 2020 11:32:38 +0000 (12:32 +0100)]
series of extensive modifications to fix long-standing bug in CR handling
cr as a FieldSelectableInt is being removed
Luke Kenneth Casson Leighton [Mon, 31 Aug 2020 11:06:24 +0000 (12:06 +0100)]
add XER to fastregs and "construct" it in mfspr/mtspr
Luke Kenneth Casson Leighton [Sun, 30 Aug 2020 19:49:58 +0000 (20:49 +0100)]
redo OP_CMP based on microwatt. L=1 had been ignored
Luke Kenneth Casson Leighton [Sun, 30 Aug 2020 14:45:03 +0000 (15:45 +0100)]
reversal of FXM mask for one-hot selection in OP_MTCR decode
Luke Kenneth Casson Leighton [Sun, 30 Aug 2020 12:05:36 +0000 (13:05 +0100)]
working on dcache.py
Luke Kenneth Casson Leighton [Sun, 30 Aug 2020 10:00:37 +0000 (11:00 +0100)]
tidyup on mul proof
Luke Kenneth Casson Leighton [Sun, 30 Aug 2020 09:51:30 +0000 (10:51 +0100)]
set mul post_stage o.ok only when needed, and fix xer_so pass-through
https://bugs.libre-soc.org/show_bug.cgi?id=482
Cole Poirier [Sun, 30 Aug 2020 03:24:22 +0000 (20:24 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Sun, 30 Aug 2020 03:23:18 +0000 (20:23 -0700)]
icache.py commit progress, about a third through the process
Samuel A. Falvo II [Sat, 29 Aug 2020 23:53:49 +0000 (16:53 -0700)]
Qualify XER_OV output in proof
Samuel A. Falvo II [Sat, 29 Aug 2020 23:27:54 +0000 (16:27 -0700)]
Fix test breakage in MUL proofs
Cole Poirier [Sat, 29 Aug 2020 22:58:31 +0000 (15:58 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Sat, 29 Aug 2020 22:56:15 +0000 (15:56 -0700)]
mmu.py, dcache.py, mem_types.py change types capitalization because I
was making typing errors, and this make more sense. Mmu -> MMU, Dcache
-> DCache, Icache -> ICache
Cole Poirier [Sat, 29 Aug 2020 22:41:07 +0000 (15:41 -0700)]
mem_types add more types from common.vhdl specifially for icache,
Fetch1ToIcacheType() and IcacheToDecode1Type()
Cole Poirier [Sat, 29 Aug 2020 22:32:38 +0000 (15:32 -0700)]
mem_types.py arrange in alphabetical order for ease of reference, align
formatting
Samuel A. Falvo II [Sat, 29 Aug 2020 22:24:15 +0000 (15:24 -0700)]
BROKEN: xer_ov_o != dut.o.xer_ov.data ???!!!
Cole Poirier [Sat, 29 Aug 2020 22:06:01 +0000 (15:06 -0700)]
mmu.py remove duplicate comment left over from mmu.vhdl
Cole Poirier [Sat, 29 Aug 2020 22:02:56 +0000 (15:02 -0700)]
icache.py initial commit of first attempt at translation of icache.vhdl
Cesar Strauss [Fri, 28 Aug 2020 09:55:10 +0000 (06:55 -0300)]
Move new write_gtkw and its example to nmutil
But keep using it to generate the GTKWave document for this unit test.
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 19:56:29 +0000 (20:56 +0100)]
minor code-shuffle, comments
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 19:42:35 +0000 (20:42 +0100)]
slowly morphing towards using an XER bit-field selector in decoder
Samuel A. Falvo II [Sat, 29 Aug 2020 19:41:30 +0000 (12:41 -0700)]
MUL pipeline formal proofs complete, I *think*.
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 18:54:23 +0000 (19:54 +0100)]
break down XER into flags
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 18:47:40 +0000 (19:47 +0100)]
add XER read via DMI interface to sim.py
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 18:41:49 +0000 (19:41 +0100)]
add hack to get at XER through DMI interface
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 18:29:16 +0000 (19:29 +0100)]
submodule update
Samuel A. Falvo II [Sat, 29 Aug 2020 17:28:12 +0000 (10:28 -0700)]
WIP: prep for 64-bit insns
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 16:18:10 +0000 (17:18 +0100)]
yep disable OE for MULH64/32 and EXTS and CNTZ
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 15:27:23 +0000 (16:27 +0100)]
investigating CR mtocrf / mfocrf
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 13:19:48 +0000 (14:19 +0100)]
add additional CR regression tests
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 13:19:11 +0000 (14:19 +0100)]
allow pseudocode numbering to decrement in for-loops
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 13:18:41 +0000 (14:18 +0100)]
add wat to write out raw binary assembled programs
Luke Kenneth Casson Leighton [Sat, 29 Aug 2020 09:56:02 +0000 (10:56 +0100)]
CR FXM becomes a full mask.
https://bugs.libre-soc.org/show_bug.cgi?id=478
Cole Poirier [Fri, 28 Aug 2020 03:04:55 +0000 (20:04 -0700)]
dcache.py add first attempt at translation of dcache_tb.vhdl as
dcache_sim()
Cole Poirier [Thu, 27 Aug 2020 23:38:09 +0000 (16:38 -0700)]
dcache.py add skeleton sim and test adapted from mmu.py which was
adapted from regfile.py
Cole Poirier [Thu, 27 Aug 2020 23:35:21 +0000 (16:35 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Thu, 27 Aug 2020 23:33:58 +0000 (16:33 -0700)]
dcache.py implement the remaining vhdl generate statements in nmigen,
fix formatting, typos
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 20:18:12 +0000 (21:18 +0100)]
https://bugs.libre-soc.org/show_bug.cgi?id=476
XER SO not being "listened" to correctly when OE=0 and Rc=1 creating CR0
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 19:52:58 +0000 (20:52 +0100)]
xer so is not being passed through to CR0
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 19:37:04 +0000 (20:37 +0100)]
really bad hack to fix simulator bug in carry handling
https://bugs.libre-soc.org/show_bug.cgi?id=476
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 17:20:29 +0000 (18:20 +0100)]
augment addme test case to show bug #476
https://bugs.libre-soc.org/show_bug.cgi?id=476
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 16:23:17 +0000 (17:23 +0100)]
add addze and addme uni tests
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 16:23:01 +0000 (17:23 +0100)]
incompatibility with POWER9 on mulhw/u due to lack of spec clarity
both microwatt and IBM POWER9 violate spec
http://lists.libre-soc.org/pipermail/libre-soc-dev/2020-August/000302.html
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 14:20:31 +0000 (15:20 +0100)]
overflow-enable does not occur on shift operations
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 14:01:23 +0000 (15:01 +0100)]
oink, write_cr shiftrot record width was zero (??)
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 13:58:25 +0000 (14:58 +0100)]
sorting out shift_rot to use new output stage data structures
shift_rot does not modify OV/32 so needs its own output stage
similar to logical, SO is never set but is "read"
Luke Kenneth Casson Leighton [Thu, 27 Aug 2020 12:23:04 +0000 (13:23 +0100)]
need to read SO if Rc=1
Luke Kenneth Casson Leighton [Wed, 26 Aug 2020 17:59:47 +0000 (18:59 +0100)]
reorg of SO handling related to CR0
because CR0 needs XER SO, logical pipe needs to read but not write SO
this means quite a substantial but relatively straightforward change
in the pipe_data for logical and ALU
Cole Poirier [Wed, 26 Aug 2020 18:06:12 +0000 (11:06 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Wed, 26 Aug 2020 18:04:45 +0000 (11:04 -0700)]
dcache.py replace subtypes/types/constant aliases with the names of the
orignal constants that these were aliases of, tidy up
names
Luke Kenneth Casson Leighton [Wed, 26 Aug 2020 14:37:22 +0000 (15:37 +0100)]
use sub-test in logical test_pipe_caller
Luke Kenneth Casson Leighton [Wed, 26 Aug 2020 14:29:01 +0000 (15:29 +0100)]
investigating div fsm and simulator bug
Cole Poirier [Tue, 25 Aug 2020 20:35:04 +0000 (13:35 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Tue, 25 Aug 2020 20:33:17 +0000 (13:33 -0700)]
dcache.py rearrange, transform classes into functions with input
parameters, fix typos, whitespace, syntax
Jacob Lifshay [Tue, 25 Aug 2020 18:54:51 +0000 (11:54 -0700)]
fix broken remainder for div FSM
Jacob Lifshay [Tue, 25 Aug 2020 18:16:03 +0000 (11:16 -0700)]
clean up formatting
Luke Kenneth Casson Leighton [Tue, 25 Aug 2020 13:30:04 +0000 (14:30 +0100)]
although shift-rot does not alter XER.so it still needs it as input for CR0
Luke Kenneth Casson Leighton [Tue, 25 Aug 2020 11:59:38 +0000 (12:59 +0100)]
add way to capture CR from DMI in litex sim
Luke Kenneth Casson Leighton [Tue, 25 Aug 2020 11:26:19 +0000 (12:26 +0100)]
add CR read to DMI interface
Luke Kenneth Casson Leighton [Tue, 25 Aug 2020 10:56:36 +0000 (11:56 +0100)]
shorten using temp vars
Luke Kenneth Casson Leighton [Tue, 25 Aug 2020 10:54:35 +0000 (11:54 +0100)]
add CR DMI interface
Luke Kenneth Casson Leighton [Tue, 25 Aug 2020 10:52:24 +0000 (11:52 +0100)]
add crxor unit test to qemu
Cole Poirier [Tue, 25 Aug 2020 01:19:24 +0000 (18:19 -0700)]
dcache.py fix whitespace, fomatting, syntax
Cole Poirier [Tue, 25 Aug 2020 01:03:14 +0000 (18:03 -0700)]
dcache.py fix formatting
Cole Poirier [Tue, 25 Aug 2020 01:01:36 +0000 (18:01 -0700)]
dcache.py move Reservation RecordObject to top of file
Cole Poirier [Tue, 25 Aug 2020 00:59:16 +0000 (17:59 -0700)]
dcache.py move RegStage1 RecordObject to top of file
Cole Poirier [Tue, 25 Aug 2020 00:47:41 +0000 (17:47 -0700)]
dcache.py move MemAccessRequest RecordObject to top of file, small
formatting changes
Cole Poirier [Tue, 25 Aug 2020 00:40:19 +0000 (17:40 -0700)]
dcache.py move Stage0 RecordObject to top of file
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 22:27:02 +0000 (23:27 +0100)]
argh, reading regfile over DMI was overlapped and corrupting reg 0
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 18:45:13 +0000 (19:45 +0100)]
add isel CR tests to run on qemu (confirmed working)
Tobias Platen [Mon, 24 Aug 2020 16:50:47 +0000 (18:50 +0200)]
TestCachedMemoryPortInterface cleanup
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 14:32:02 +0000 (15:32 +0100)]
make it easier to select FSM/Pipe DIV unit
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 14:04:55 +0000 (15:04 +0100)]
fix *another* ld-update-related timing / FSM issue
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 12:42:03 +0000 (13:42 +0100)]
tidyup / shuffle after review
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 12:30:28 +0000 (13:30 +0100)]
remove default parameter
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 11:43:34 +0000 (12:43 +0100)]
"WAY" does not exist - range(NUM_WAYS) was intended
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 11:37:32 +0000 (12:37 +0100)]
use WAY_BITS in appropriate locations
Luke Kenneth Casson Leighton [Mon, 24 Aug 2020 11:18:04 +0000 (12:18 +0100)]
reminder that the license (reflecting what is in setup.py) is the LGPLv3
Cole Poirier [Mon, 24 Aug 2020 00:48:16 +0000 (17:48 -0700)]
Merge branch 'master' of git.libre-soc.org:soc
Cole Poirier [Mon, 24 Aug 2020 00:46:21 +0000 (17:46 -0700)]
dcache.py commit first full tranlation pass, about five percent left
undone as I don't understand how to do it and need help
Luke Kenneth Casson Leighton [Sun, 23 Aug 2020 21:07:33 +0000 (22:07 +0100)]
update copyright notices to include additional primary author
(michael, please make sure to be properly informed on copyright law.
the git commit logs are the "ultimate" record, and simply being just one
of the authors does not mean that you can take the entire code and re-license
it under your own license. you can only take the portions that *you* wrote)
Luke Kenneth Casson Leighton [Sun, 23 Aug 2020 20:57:10 +0000 (21:57 +0100)]
add load algebraic immediate unit test
Luke Kenneth Casson Leighton [Sun, 23 Aug 2020 20:39:25 +0000 (21:39 +0100)]
add algebraic ld tests lwax, lwaux
Michael Nolan [Sun, 23 Aug 2020 20:06:24 +0000 (16:06 -0400)]
Add copyright to files I primarily authored in simulator/
Michael Nolan [Sun, 23 Aug 2020 20:04:13 +0000 (16:04 -0400)]
Add copyright to files in fu/ that I was the primary author on
Michael Nolan [Sun, 23 Aug 2020 19:51:32 +0000 (15:51 -0400)]
Add copyright statement to power_decoder.py
Michael Copyright
Luke Kenneth Casson Leighton [Sun, 23 Aug 2020 19:49:13 +0000 (20:49 +0100)]
bring "core stopped" signal out through DMI interface
Luke Kenneth Casson Leighton [Sun, 23 Aug 2020 19:36:58 +0000 (20:36 +0100)]
add in DMI "stat" loop which monitors core "stopping"
Cesar Strauss [Sun, 23 Aug 2020 19:26:20 +0000 (16:26 -0300)]
Allow an empty style, and passing default styles as arguments
This permits to entirely avoid passing a style structure, if only
the root selector is needed.
Cesar Strauss [Sun, 23 Aug 2020 18:31:12 +0000 (15:31 -0300)]
Add comment node type
Cesar Strauss [Sun, 23 Aug 2020 18:06:21 +0000 (15:06 -0300)]
Add base and display styles