soc.git
3 years agoadd debug info, update comments, disable dcache in test
Luke Kenneth Casson Leighton [Wed, 12 May 2021 14:33:04 +0000 (15:33 +0100)]
add debug info, update comments, disable dcache in test
all tracking down bugs in test_ldst_pi.py

3 years agostart doing virtual memory queries via PortInterface on LoadStore1
Luke Kenneth Casson Leighton [Wed, 12 May 2021 14:07:09 +0000 (15:07 +0100)]
start doing virtual memory queries via PortInterface on LoadStore1

3 years agowhoops missing default zero (no idea how)
Luke Kenneth Casson Leighton [Wed, 12 May 2021 13:35:55 +0000 (14:35 +0100)]
whoops missing default zero (no idea how)

3 years agoaddcomments for MMU PortInterface test (how it, um, doesnt actually use PortInterface? :)
Luke Kenneth Casson Leighton [Wed, 12 May 2021 12:17:33 +0000 (13:17 +0100)]
addcomments for MMU PortInterface test (how it, um, doesnt actually use PortInterface? :)

3 years agobit of a hack to get test_mmu_dcache_pi.py operational.
Luke Kenneth Casson Leighton [Wed, 12 May 2021 12:15:05 +0000 (13:15 +0100)]
bit of a hack to get test_mmu_dcache_pi.py operational.
if missing data from the mem dictionary in wb_get, return zero

3 years agowhitespace
Luke Kenneth Casson Leighton [Wed, 12 May 2021 12:04:51 +0000 (13:04 +0100)]
whitespace

3 years agono need for sel0
Luke Kenneth Casson Leighton [Wed, 12 May 2021 12:04:37 +0000 (13:04 +0100)]
no need for sel0

3 years agopass through MSR.PR through PortInterface, into LoadStore1
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:59:45 +0000 (11:59 +0100)]
pass through MSR.PR through PortInterface, into LoadStore1

3 years agoconnect MSR.PR to PortInterface in LDSTCompUnit
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:52:53 +0000 (11:52 +0100)]
connect MSR.PR to PortInterface in LDSTCompUnit

3 years agoadd msr_pr bit in PortInterface
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:46:33 +0000 (11:46 +0100)]
add msr_pr bit in PortInterface

3 years agoadd MSR to LD/ST Input Record
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:44:42 +0000 (11:44 +0100)]
add MSR to LD/ST Input Record

3 years agocomment tidyup
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:07:55 +0000 (11:07 +0100)]
comment tidyup

3 years agomust also pass through instruction fault exception in LoadStore1
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:05:57 +0000 (11:05 +0100)]
must also pass through instruction fault exception in LoadStore1

3 years agowhoops names changed in MMU FSM
Luke Kenneth Casson Leighton [Tue, 11 May 2021 10:04:25 +0000 (11:04 +0100)]
whoops names changed in MMU FSM

3 years agotidyup comments and remove LoadStore COMPLETE state
Luke Kenneth Casson Leighton [Tue, 11 May 2021 09:56:56 +0000 (10:56 +0100)]
tidyup comments and remove LoadStore COMPLETE state

3 years agocleanup on exception setting
Luke Kenneth Casson Leighton [Tue, 11 May 2021 09:53:34 +0000 (10:53 +0100)]
cleanup on exception setting

3 years agorename LoadStore1 data structures back to microwatt names
Luke Kenneth Casson Leighton [Tue, 11 May 2021 09:45:29 +0000 (10:45 +0100)]
rename LoadStore1 data structures back to microwatt names

3 years agoadd block for MMU activation to LoadStore1
Luke Kenneth Casson Leighton [Mon, 10 May 2021 23:43:17 +0000 (00:43 +0100)]
add block for MMU activation to LoadStore1

3 years agomove LoadStore1 d_validblip setting, and get MMU_LOOKUP to re-run
Luke Kenneth Casson Leighton [Mon, 10 May 2021 23:35:18 +0000 (00:35 +0100)]
move LoadStore1 d_validblip setting, and get MMU_LOOKUP to re-run
the dcache request after the MMU_LOOKUP succeeds

3 years agowhoops, indentation issue on m.If/m.Else in dcache.py
Luke Kenneth Casson Leighton [Mon, 10 May 2021 23:25:53 +0000 (00:25 +0100)]
whoops, indentation issue on m.If/m.Else in dcache.py

3 years agostyle-wise: use ~self.instr_fault not self.instr_fault==0
Tobias Platen [Mon, 10 May 2021 17:41:58 +0000 (19:41 +0200)]
style-wise: use ~self.instr_fault not self.instr_fault==0

3 years agoLoadStore1: add rules for MMU_LOOKUP
Tobias Platen [Mon, 10 May 2021 17:23:19 +0000 (19:23 +0200)]
LoadStore1: add rules for MMU_LOOKUP

3 years agoadd links to set associative image, and bugreport
Luke Kenneth Casson Leighton [Mon, 10 May 2021 13:15:49 +0000 (14:15 +0100)]
add links to set associative image, and bugreport

3 years agoadd comments on translation of MMU_LOOKUP
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:41:22 +0000 (20:41 +0100)]
add comments on translation of MMU_LOOKUP

3 years agoinstall MMU_LOOKUP vhdl to be translated to nmigen
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:34:39 +0000 (20:34 +0100)]
install MMU_LOOKUP vhdl to be translated to nmigen

3 years agomove (unused) ACK_WAIT code into FSM
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:32:45 +0000 (20:32 +0100)]
move (unused) ACK_WAIT code into FSM
remove another (unneeded) state, FINISH_LFS
sort-of got ACK_WAIT to flip over to IDLE but done has to be
asserted for longer than necessary. needs investigating

3 years agoadd comments in LoadStore1
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:14:28 +0000 (20:14 +0100)]
add comments in LoadStore1

3 years agoremove invalid setting of d_in.valid from self.mmureq
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:09:45 +0000 (20:09 +0100)]
remove invalid setting of d_in.valid from self.mmureq

3 years agono SECOND_REQ
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:05:42 +0000 (20:05 +0100)]
no SECOND_REQ

3 years agoremove SECOND_REQ
Luke Kenneth Casson Leighton [Sun, 9 May 2021 19:04:35 +0000 (20:04 +0100)]
remove SECOND_REQ

3 years agosrc/soc/fu/ldst/loadstore.py drive output d_in.valid
Tobias Platen [Sun, 9 May 2021 18:57:31 +0000 (20:57 +0200)]
src/soc/fu/ldst/loadstore.py drive output d_in.valid

3 years agomove skeleton to elaborate
Tobias Platen [Sun, 9 May 2021 17:00:50 +0000 (19:00 +0200)]
move skeleton to elaborate

3 years agosrc/soc/fu/ldst/loadstore.py: add skeleton for fsm
Tobias Platen [Sun, 9 May 2021 16:57:55 +0000 (18:57 +0200)]
src/soc/fu/ldst/loadstore.py: add skeleton for fsm

3 years agoadd comment about LD/ST exception needs copying into PowerDecoder2
Luke Kenneth Casson Leighton [Sun, 9 May 2021 15:48:29 +0000 (16:48 +0100)]
add comment about LD/ST exception needs copying into PowerDecoder2

3 years agorun LD/ST Exception test case for MMU
Luke Kenneth Casson Leighton [Sun, 9 May 2021 15:47:34 +0000 (16:47 +0100)]
run LD/ST Exception test case for MMU

3 years agoadd MMU bugtracker link
Luke Kenneth Casson Leighton [Sun, 9 May 2021 14:45:17 +0000 (15:45 +0100)]
add MMU bugtracker link

3 years agogit submodule update
Luke Kenneth Casson Leighton [Sun, 9 May 2021 14:42:09 +0000 (15:42 +0100)]
git submodule update

3 years agoupdate code-comments
Luke Kenneth Casson Leighton [Sun, 9 May 2021 14:34:55 +0000 (15:34 +0100)]
update code-comments

3 years agoadd in alignment exception capture/reporting in LoadStore1
Luke Kenneth Casson Leighton [Sun, 9 May 2021 14:30:25 +0000 (15:30 +0100)]
add in alignment exception capture/reporting in LoadStore1

3 years agopreference is to create a temp variable for comb and sync and use that
Luke Kenneth Casson Leighton [Sun, 9 May 2021 12:30:49 +0000 (13:30 +0100)]
preference is to create a temp variable for comb and sync and use that

3 years agoadd misalign flag to PortInterfaceBase
Luke Kenneth Casson Leighton [Sun, 9 May 2021 12:29:19 +0000 (13:29 +0100)]
add misalign flag to PortInterfaceBase
allows first exception to be generated

3 years agoLoadStore1 tidyup
Luke Kenneth Casson Leighton [Sat, 8 May 2021 19:17:19 +0000 (20:17 +0100)]
LoadStore1 tidyup

3 years agotransferring more over to LoadStore FSM
Luke Kenneth Casson Leighton [Sat, 8 May 2021 19:15:34 +0000 (20:15 +0100)]
transferring more over to LoadStore FSM

3 years agostart putting state info into LoadStore1, slowly putting loadstore1.vhdl
Luke Kenneth Casson Leighton [Sat, 8 May 2021 19:08:02 +0000 (20:08 +0100)]
start putting state info into LoadStore1, slowly putting loadstore1.vhdl
FSM into LoadStore1

3 years agoadd LoadStore State enum
Luke Kenneth Casson Leighton [Sat, 8 May 2021 19:00:10 +0000 (20:00 +0100)]
add LoadStore State enum

3 years agoadd bugreport link to mmu
Luke Kenneth Casson Leighton [Sat, 8 May 2021 00:43:43 +0000 (01:43 +0100)]
add bugreport link to mmu

3 years agofix 'sync' referenced before assignment in src/soc/fu/mmu/fsm.py
Tobias Platen [Fri, 7 May 2021 18:39:37 +0000 (20:39 +0200)]
fix 'sync' referenced before assignment in src/soc/fu/mmu/fsm.py

3 years agostart setting DSISR bits but commented out
Luke Kenneth Casson Leighton [Fri, 7 May 2021 17:53:29 +0000 (18:53 +0100)]
start setting DSISR bits but commented out

3 years agoupdate comments and docstrings
Luke Kenneth Casson Leighton [Fri, 7 May 2021 12:26:21 +0000 (13:26 +0100)]
update comments and docstrings

3 years agowhoops, import error
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:51:56 +0000 (12:51 +0100)]
whoops, import error

3 years agomove LoadStore1 class to soc.fu.ldst.loadstore
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:51:26 +0000 (12:51 +0100)]
move LoadStore1 class to soc.fu.ldst.loadstore

3 years agowhoops was still copying output over in CommonOutputStage
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:44:07 +0000 (12:44 +0100)]
whoops was still copying output over in CommonOutputStage
for SVP64 pred-zero-dest

3 years agohow we managed to get this far without noticing that test_runner.py is
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:40:41 +0000 (12:40 +0100)]
how we managed to get this far without noticing that test_runner.py is
not using "with self.subTest" is anyones guess

3 years agomove dsisr and dar into LoadStore1
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:37:17 +0000 (12:37 +0100)]
move dsisr and dar into LoadStore1

3 years agomove zero-dest-pred in Common Output Stage to not copy target.
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:19:26 +0000 (12:19 +0100)]
move zero-dest-pred in Common Output Stage to not copy target.
this then allows CR0 to set a "zero" bit

3 years agowhoops setup of core.sv_pred_sm/dm not indented and under "if svp64_en"
Luke Kenneth Casson Leighton [Fri, 7 May 2021 11:15:48 +0000 (12:15 +0100)]
whoops setup of core.sv_pred_sm/dm not indented and under "if svp64_en"

3 years agowhoops disabled tests agaaaaain
Luke Kenneth Casson Leighton [Thu, 6 May 2021 17:52:50 +0000 (18:52 +0100)]
whoops disabled tests agaaaaain

3 years agopass relevant predicate mask bits through to Decoders (PowerDecoderSubset)
Luke Kenneth Casson Leighton [Thu, 6 May 2021 17:52:24 +0000 (18:52 +0100)]
pass relevant predicate mask bits through to Decoders (PowerDecoderSubset)
at the right time

3 years agoadd in predicate mask bit detection when zeroing is enabled
Luke Kenneth Casson Leighton [Thu, 6 May 2021 17:45:43 +0000 (18:45 +0100)]
add in predicate mask bit detection when zeroing is enabled

3 years agopass SVP64 ReMap field through to core and then on to FU decoders
Luke Kenneth Casson Leighton [Thu, 6 May 2021 17:06:47 +0000 (18:06 +0100)]
pass SVP64 ReMap field through to core and then on to FU decoders

3 years agomoved exts* SVP64 unit tests to a different location
Luke Kenneth Casson Leighton [Thu, 6 May 2021 12:40:28 +0000 (13:40 +0100)]
moved exts* SVP64 unit tests to a different location

3 years ago.gitlab-ci.yml: Increase the build timeout
Jonathan Neuschäfer [Mon, 3 May 2021 19:53:26 +0000 (21:53 +0200)]
.gitlab-ci.yml: Increase the build timeout

The job takes longer than an hour on gitlab.com, so let's set the
timeout to two hours, to be sure that there's enough time.

On other GitLab-CI runners, it will be faster, but it's good to be able
to run the tests on gitlab.com too.

3 years agoargh someobe falsely stated in the README that LibreSOC is an "open"
Luke Kenneth Casson Leighton [Thu, 6 May 2021 04:02:31 +0000 (05:02 +0100)]
argh someobe falsely stated in the README that LibreSOC is an "open"
project.

3 years agoif zeroing is set, put zero into input or output as requested
Luke Kenneth Casson Leighton [Wed, 5 May 2021 15:33:48 +0000 (16:33 +0100)]
if zeroing is set, put zero into input or output as requested

3 years agofix bug in mmu/fsm.py
Tobias Platen [Wed, 5 May 2021 17:56:53 +0000 (19:56 +0200)]
fix bug in mmu/fsm.py

3 years agosimplify README.md so that it gets submitted to pypi
Luke Kenneth Casson Leighton [Wed, 5 May 2021 13:36:07 +0000 (14:36 +0100)]
simplify README.md so that it gets submitted to pypi

3 years agomark long description type as markdown
Luke Kenneth Casson Leighton [Wed, 5 May 2021 13:19:23 +0000 (14:19 +0100)]
mark long description type as markdown

3 years agoupdate NEWS.txt
Luke Kenneth Casson Leighton [Wed, 5 May 2021 13:17:59 +0000 (14:17 +0100)]
update NEWS.txt

3 years agoadd libresoc-openpower-isa to setup.py dependencies
Luke Kenneth Casson Leighton [Wed, 5 May 2021 13:16:58 +0000 (14:16 +0100)]
add libresoc-openpower-isa to setup.py dependencies

3 years agoput sv_input_record_layout onto CompOpSubsetBase after all
Luke Kenneth Casson Leighton [Wed, 5 May 2021 12:38:39 +0000 (13:38 +0100)]
put sv_input_record_layout onto CompOpSubsetBase after all

3 years agowhoops wrong signal name, set exc_happened
Luke Kenneth Casson Leighton [Wed, 5 May 2021 12:38:11 +0000 (13:38 +0100)]
whoops wrong signal name, set exc_happened

3 years agoadd SVP64 RM fields to ALU input record
Luke Kenneth Casson Leighton [Wed, 5 May 2021 11:51:26 +0000 (12:51 +0100)]
add SVP64 RM fields to ALU input record

3 years agoMerge branch 'master' of ssh://git.libre-riscv.org:922/soc
Tobias Platen [Tue, 4 May 2021 19:25:22 +0000 (21:25 +0200)]
Merge branch 'master' of ssh://git.libre-riscv.org:922/soc

3 years agoimplement MFSPR the same way as fu/spr/main_stage.py
Tobias Platen [Tue, 4 May 2021 19:23:32 +0000 (21:23 +0200)]
implement MFSPR the same way as fu/spr/main_stage.py

3 years agoremove minerva debug unit (not needed)
Luke Kenneth Casson Leighton [Tue, 4 May 2021 19:21:04 +0000 (20:21 +0100)]
remove minerva debug unit (not needed)

3 years agominerva tests: Don't import soc.minerva.csr
Jonathan Neuschäfer [Tue, 4 May 2021 11:09:49 +0000 (13:09 +0200)]
minerva tests: Don't import soc.minerva.csr

Fixes: 4af6717b ("remove unneeded minerva code")
3 years ago.gitlab-ci.yml: Silence pywriter harder
Jonathan Neuschäfer [Tue, 4 May 2021 08:03:17 +0000 (10:03 +0200)]
.gitlab-ci.yml: Silence pywriter harder

"make -j$(nproc) pywriter" and "pywriter" fill the log with over 20000
lines like this:

> /builds/neuschaefer/soc/openpower-isa/src/openpower/decoder/power_decoder.py:420: UnusedElaboratable: <openpower.decoder.power_decoder.PowerDecoder object at 0x7f4bf8ae8e48> created but never used
>   row_subset=self.row_subsetfn)
> UnusedElaboratable: Enable tracemalloc to get the object allocation traceback

Ideally, the relevant code should be fixed to avoid this warning, but for now,
I'm silencing it, so I can fit more relevant output into GitLab-CI's 4 MiB limit.

3 years ago.gitlab-ci.yml: Trim log output
Jonathan Neuschäfer [Tue, 4 May 2021 06:19:29 +0000 (08:19 +0200)]
.gitlab-ci.yml: Trim log output

GitLab-CI limits log output to 4 MiB, which the build job currently
exceeds. Trim the output of some of the earlier steps, to make it
possible to figure out what went wrong in the later steps.

3 years ago.gitlab-ci.yml: Fix invocation of pywriter
Jonathan Neuschäfer [Mon, 3 May 2021 21:14:35 +0000 (23:14 +0200)]
.gitlab-ci.yml: Fix invocation of pywriter

See ffb6288f ("svanalysis and pywriter now command-line scripts").

3 years ago.gitlab-ci.yml: Clone and build power-instruction-analyzer
Jonathan Neuschäfer [Tue, 4 May 2021 10:57:26 +0000 (12:57 +0200)]
.gitlab-ci.yml: Clone and build power-instruction-analyzer

3 years ago.gitlab-ci.yml: Clone and build c4m-jtag
Jonathan Neuschäfer [Tue, 4 May 2021 10:28:56 +0000 (12:28 +0200)]
.gitlab-ci.yml: Clone and build c4m-jtag

3 years ago.gitlab-ci.yml: Clone and build openpower-isa
Jonathan Neuschäfer [Mon, 3 May 2021 21:57:58 +0000 (23:57 +0200)]
.gitlab-ci.yml: Clone and build openpower-isa

3 years ago.gitlab-ci.yml: Install Rust and cargo
Jonathan Neuschäfer [Mon, 3 May 2021 20:33:12 +0000 (22:33 +0200)]
.gitlab-ci.yml: Install Rust and cargo

Unfortunately, Rust 1.41 (as available in Debian 10) is too old for
object v0.23.0, a dependency of maturin:

error[E0658]: subslice patterns are unstable
   --> /root/.cargo/registry/src/github.com-1ecc6299db9ec823/object-0.23.0/src/read/mod.rs:162:41
    |
162 |             [0x7f, b'E', b'L', b'F', 1, ..] => FileKind::Elf32,
    |                                         ^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/62254

... so we have to resort to rustup.

3 years ago.gitlab-ci.yml: Remove tags from nmigen-soc repo
Jonathan Neuschäfer [Mon, 3 May 2021 19:13:18 +0000 (21:13 +0200)]
.gitlab-ci.yml: Remove tags from nmigen-soc repo

In nmigen-soc, setuptools complains:

  pkg_resources.extern.packaging.version.InvalidVersion: Invalid version: '24jan2021_ls180'

This commit is partially inspired by: https://git.libre-soc.org/?p=dev-env-setup.git;a=commitdiff;h=6b79a0fea2052a8b35a4f130a64c119983d40f3c

3 years ago.gitlab-ci.yml: Rewrite git://git.libre-riscv.org URLs to https://git.libre-soc.org/
Jonathan Neuschäfer [Mon, 3 May 2021 19:01:02 +0000 (21:01 +0200)]
.gitlab-ci.yml: Rewrite git://git.libre-riscv.org URLs to https://git.libre-soc.org/

git.libre-soc.org supports git over HTTPS, so let's use it.

3 years agowhoops disabled some test_issuer group tests
Luke Kenneth Casson Leighton [Tue, 4 May 2021 18:33:34 +0000 (19:33 +0100)]
whoops disabled some test_issuer group tests

3 years agoadd SVSTATE (SVSRR0) to TRAP pipeline
Luke Kenneth Casson Leighton [Tue, 4 May 2021 17:40:35 +0000 (18:40 +0100)]
add SVSTATE (SVSRR0) to TRAP pipeline
involves adding svstate to TrapOutputData regspec, and a corresponding
write port to StateRegs, and adding svstate to CompTrapOpSubset

3 years agoupate dsisr and dar using sync
Tobias Platen [Tue, 4 May 2021 18:32:39 +0000 (20:32 +0200)]
upate dsisr and dar using sync

3 years agoadding fast3 SPR to Trap pipeline and unit test
Luke Kenneth Casson Leighton [Tue, 4 May 2021 17:09:36 +0000 (18:09 +0100)]
adding fast3 SPR to Trap pipeline and unit test

3 years agonew fast3 needs to be remapped to fast1 port in "reduced ports" case in core
Luke Kenneth Casson Leighton [Tue, 4 May 2021 17:08:56 +0000 (18:08 +0100)]
new fast3 needs to be remapped to fast1 port in "reduced ports" case in core

3 years agomissed that soc.regfile.util has moved to openpower.util
Luke Kenneth Casson Leighton [Tue, 4 May 2021 16:32:40 +0000 (17:32 +0100)]
missed that soc.regfile.util has moved to openpower.util

3 years agoadd SVSRR0 to FastRegsEnum
Luke Kenneth Casson Leighton [Tue, 4 May 2021 16:32:26 +0000 (17:32 +0100)]
add SVSRR0 to FastRegsEnum

3 years agoadd TODO comments and cross-reference to bug
Luke Kenneth Casson Leighton [Tue, 4 May 2021 16:18:33 +0000 (17:18 +0100)]
add TODO comments and cross-reference to bug
https://bugs.libre-soc.org/show_bug.cgi?id=636
TestIssuer EXECUTE_WAIT FSM needs to note that an exception has happened
and *re-execute* the instruction

3 years agonote a way to see if an exception happened, in TestIssuer
Luke Kenneth Casson Leighton [Tue, 4 May 2021 16:02:49 +0000 (17:02 +0100)]
note a way to see if an exception happened, in TestIssuer

3 years agoadd printout showing exception output from FUs
Luke Kenneth Casson Leighton [Tue, 4 May 2021 15:56:06 +0000 (16:56 +0100)]
add printout showing exception output from FUs

3 years agoremove symlink
Luke Kenneth Casson Leighton [Tue, 4 May 2021 14:44:39 +0000 (15:44 +0100)]
remove symlink

3 years agoadd links in README
Luke Kenneth Casson Leighton [Tue, 4 May 2021 14:39:10 +0000 (15:39 +0100)]
add links in README

3 years agomore rename of exception_o to exc_o, add convenience function in TestCore
Luke Kenneth Casson Leighton [Tue, 4 May 2021 14:18:51 +0000 (15:18 +0100)]
more rename of exception_o to exc_o, add convenience function in TestCore
to get at all exceptions

3 years agowire in exc_o.happened into write-cancellation of LDSTCompUnit
Luke Kenneth Casson Leighton [Tue, 4 May 2021 14:18:08 +0000 (15:18 +0100)]
wire in exc_o.happened into write-cancellation of LDSTCompUnit

3 years agocomments, and change name of LDSTCompUnit exception_o to exc_o
Luke Kenneth Casson Leighton [Tue, 4 May 2021 13:55:14 +0000 (14:55 +0100)]
comments, and change name of LDSTCompUnit exception_o to exc_o