openpower-isa.git
2 years agopower_insn: skip sv. instructions in PPC database
Dmitry Selyutin [Fri, 7 Oct 2022 12:16:05 +0000 (15:16 +0300)]
power_insn: skip sv. instructions in PPC database

2 years agopower_insn: fix AA match
Dmitry Selyutin [Fri, 7 Oct 2022 12:15:09 +0000 (15:15 +0300)]
power_insn: fix AA match

2 years agopower_insn: do not allow default records
Dmitry Selyutin [Fri, 7 Oct 2022 12:14:19 +0000 (15:14 +0300)]
power_insn: do not allow default records

2 years agoadd max-with-getting-index-of vertical-first loop example
Luke Kenneth Casson Leighton [Fri, 14 Oct 2022 13:14:53 +0000 (14:14 +0100)]
add max-with-getting-index-of vertical-first loop example

2 years agosmall update in the max detection code
Konstantinos Margaritis [Fri, 14 Oct 2022 10:34:05 +0000 (10:34 +0000)]
small update in the max detection code

2 years agoSVP64RMModeDecode detects Post-Inc LDST-imm mode
Luke Kenneth Casson Leighton [Fri, 14 Oct 2022 09:16:33 +0000 (10:16 +0100)]
SVP64RMModeDecode detects Post-Inc LDST-imm mode

2 years agocorrect comments
Luke Kenneth Casson Leighton [Thu, 13 Oct 2022 06:45:46 +0000 (07:45 +0100)]
correct comments

2 years agoadd in zeroing on test strncpy
Luke Kenneth Casson Leighton [Wed, 12 Oct 2022 21:47:48 +0000 (22:47 +0100)]
add in zeroing on test strncpy

2 years agoremove unneeded svstate from test
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 20:14:34 +0000 (21:14 +0100)]
remove unneeded svstate from test

2 years agoadd strncpy example - 6 instructions
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 16:09:54 +0000 (17:09 +0100)]
add strncpy example - 6 instructions

2 years agoadd sv.stwu/pi example in test_sv_load_store_postinc
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 14:17:45 +0000 (15:17 +0100)]
add sv.stwu/pi example in test_sv_load_store_postinc

2 years agoadd ld/st-immediate "post-inc" mode support. unit test for LD
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 13:11:04 +0000 (14:11 +0100)]
add ld/st-immediate "post-inc" mode support. unit test for LD

2 years agoadd /pi to sv/trans/svp64.py and power_insns.py
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 12:31:58 +0000 (13:31 +0100)]
add /pi to sv/trans/svp64.py and power_insns.py

2 years agoadd new LD-Immediate Post constants
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 12:30:56 +0000 (13:30 +0100)]
add new LD-Immediate Post constants

2 years agofirst working version
Konstantinos Margaritis [Fri, 14 Oct 2022 00:16:59 +0000 (00:16 +0000)]
first working version

2 years agoincrease buffer size, fix svp64 address for r5
Konstantinos Margaritis [Fri, 14 Oct 2022 00:16:37 +0000 (00:16 +0000)]
increase buffer size, fix svp64 address for r5

2 years agoadd sv.divmod2du test, inverse of the sv.madded
Luke Kenneth Casson Leighton [Wed, 12 Oct 2022 20:55:50 +0000 (21:55 +0100)]
add sv.divmod2du test, inverse of the sv.madded
using the same values

2 years agocomments clean-up on bigint big-mul case
Luke Kenneth Casson Leighton [Wed, 12 Oct 2022 15:04:21 +0000 (16:04 +0100)]
comments clean-up on bigint big-mul case

2 years agowhoops ea not ra in pifixedstore.mdwn
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 16:09:28 +0000 (17:09 +0100)]
whoops ea not ra in pifixedstore.mdwn

2 years agoadd Post-increment version of fixedstore.mdwn
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 14:05:58 +0000 (15:05 +0100)]
add Post-increment version of fixedstore.mdwn

2 years agoadd asciidump option to Mem class
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 16:09:08 +0000 (17:09 +0100)]
add asciidump option to Mem class

2 years agowhoops zero-error on masked-out
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 16:08:52 +0000 (17:08 +0100)]
whoops zero-error on masked-out

2 years agoWIP: add initial AV1 SVP64 porting
Konstantinos Margaritis [Tue, 11 Oct 2022 09:51:34 +0000 (09:51 +0000)]
WIP: add initial AV1 SVP64 porting

2 years agomove pypowersim_wrapper on its own
Konstantinos Margaritis [Tue, 11 Oct 2022 09:49:24 +0000 (09:49 +0000)]
move pypowersim_wrapper on its own

2 years agoadd experimental post-increment fixedload pseudocode
Luke Kenneth Casson Leighton [Tue, 11 Oct 2022 09:48:29 +0000 (10:48 +0100)]
add experimental post-increment fixedload pseudocode

2 years agoadd elwidth overrides on Indexed REMAP, 8-bit example. reduces reg usage
Luke Kenneth Casson Leighton [Mon, 10 Oct 2022 19:29:43 +0000 (20:29 +0100)]
add elwidth overrides on Indexed REMAP, 8-bit example. reduces reg usage

2 years agoadd elwidth overrides to get_idx_out2
Luke Kenneth Casson Leighton [Mon, 10 Oct 2022 19:02:59 +0000 (20:02 +0100)]
add elwidth overrides to get_idx_out2

2 years agofix format in debug log
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 23:35:34 +0000 (00:35 +0100)]
fix format in debug log

2 years agoforgot to add offset on GPR() get
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 23:32:05 +0000 (00:32 +0100)]
forgot to add offset on GPR() get

2 years agoadd elwidth overrides on destination (write) in ISACaller.
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 23:11:15 +0000 (00:11 +0100)]
add elwidth overrides on destination (write) in ISACaller.
first two unit tests pass (sv.add/ew=8, sv.add/ew=32)

2 years agosplit out base,offset in register decoding for elwidth overrides to work
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 20:14:24 +0000 (21:14 +0100)]
split out base,offset in register decoding for elwidth overrides to work
previously, calculating the register number was fine, it was straight
64-bit reg indexed.  however elwidths are *part-way* through registers
(packed) so need to compute the reg differently

2 years agoadd 8-bit elwidth alu svp64 case
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 19:42:17 +0000 (20:42 +0100)]
add 8-bit elwidth alu svp64 case

2 years agoadd rfscv to major_19.csv, add test_pysvp64dis.py unit test
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 13:37:33 +0000 (14:37 +0100)]
add rfscv to major_19.csv, add test_pysvp64dis.py unit test

2 years agodrat
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 13:29:20 +0000 (14:29 +0100)]
drat

2 years agoadd sc and scv support after moving from major.csv to extra.csv
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 13:28:00 +0000 (14:28 +0100)]
add sc and scv support after moving from major.csv to extra.csv
this now involves a laborious brute-force search looking for anything
with an extra.csv path, in order to prioritise the (full) 32-bit
pattern-match over e.g. MAJOR XO=17.
attn should also work (but currently does not, no idea why, possibly
because it should actually be in major.csv?

2 years agovector name "RSp" not recognised in sv.stq, added as example
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 12:26:09 +0000 (13:26 +0100)]
vector name "RSp" not recognised in sv.stq, added as example

2 years agoadd stq to CSV files and unit test to test_pysvp64dis.py
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 12:23:03 +0000 (13:23 +0100)]
add stq to CSV files and unit test to test_pysvp64dis.py

2 years agoseparate out DQ and DS to separate custom_immediates
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 12:14:13 +0000 (13:14 +0100)]
separate out DQ and DS to separate custom_immediates
D was unhappy about being a custom_field as an immediate.
better: create SignedImmediate class deriving from ImmediateOperand

2 years agouse new base-class EXTSOperand, derive from ImmediateOperand
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 12:11:33 +0000 (13:11 +0100)]
use new base-class EXTSOperand, derive from ImmediateOperand

2 years agoconvert TargetAddrOperand to base class EXTSOperand
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 11:45:30 +0000 (12:45 +0100)]
convert TargetAddrOperand to base class EXTSOperand
(about to do DQ/DS operand)

2 years agoadd lq and CONST_DQ
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 11:22:56 +0000 (12:22 +0100)]
add lq and CONST_DQ

2 years agorestore tests, accidentally disabled
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 10:11:28 +0000 (11:11 +0100)]
restore tests, accidentally disabled

2 years agoadd CY operand to fields.txt, in Z23-Form
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 10:09:39 +0000 (11:09 +0100)]
add CY operand to fields.txt, in Z23-Form
(missing from Power ISA v3.0B and v3.1 spec!)

2 years agoadd XER bits to register enums
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 10:04:05 +0000 (11:04 +0100)]
add XER bits to register enums

2 years agoadd addex to csv and sv_analysis db. also needs CryIn.OV enum
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 09:29:38 +0000 (10:29 +0100)]
add addex to csv and sv_analysis db. also needs CryIn.OV enum
added quick test_pysvp64dis.py test too

2 years agomisnamed instruction, lfiwzx
Luke Kenneth Casson Leighton [Sat, 8 Oct 2022 09:10:15 +0000 (10:10 +0100)]
misnamed instruction, lfiwzx

2 years agomore work on inssort. add useful reg-dump in ISACaller
Luke Kenneth Casson Leighton [Fri, 7 Oct 2022 12:47:03 +0000 (13:47 +0100)]
more work on inssort. add useful reg-dump in ISACaller

2 years agonope. failfirst needs to always save the result, but truncate VL *after*.
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 21:41:04 +0000 (22:41 +0100)]
nope.  failfirst needs to always save the result, but truncate VL *after*.
https://bugs.libre-soc.org/show_bug.cgi?id=936

2 years agofix fail-first to exclude failed element in VLi=0 mode
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 19:19:42 +0000 (20:19 +0100)]
fix fail-first to exclude failed element in VLi=0 mode

2 years agosort out CROPs fail-first in ISACaller. needed to take a copy of CR
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 17:34:38 +0000 (18:34 +0100)]
sort out CROPs fail-first in ISACaller.  needed to take a copy of CR
for when sv.cmp (and other pseudocode) *overwrites* CR and it needs
restoring (when VLI=0).  also needed to identify 3-bit and 5-bit
ffirst mode, and extract bottom 2 bits of BF

2 years agomake fail-first cope with sv.cmp which uses CR[BF]
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 16:26:24 +0000 (17:26 +0100)]
make fail-first cope with sv.cmp which uses CR[BF]

2 years agoadd insert sort svp64 test
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 14:59:54 +0000 (15:59 +0100)]
add insert sort svp64 test

2 years agosearch for BF in registers to over-ride Vector lookup into CR Register
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 14:58:11 +0000 (15:58 +0100)]
search for BF in registers to over-ride Vector lookup into CR Register
CR[32+BF...] is used, so it is more complex

2 years agostarting to add sv.cmp support and failfirst, had to add
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 13:36:23 +0000 (14:36 +0100)]
starting to add sv.cmp support and failfirst, had to add
SVMode to SVP64RMModeDecode to identify the different RM modes first

2 years agoadd PredicateBaseRM decode to CR Ops Simple mode as well as ff=3-bit
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 12:16:28 +0000 (13:16 +0100)]
add PredicateBaseRM decode to CR Ops Simple mode as well as ff=3-bit

2 years agoadd vli mode to ff=5 CR ops
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 11:57:57 +0000 (12:57 +0100)]
add vli mode to ff=5 CR ops

2 years agowhoops must only be PredicateBaseRM in CROpFF5RM
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 11:51:42 +0000 (12:51 +0100)]
whoops must only be PredicateBaseRM in CROpFF5RM

2 years agoadd sv.cmp (ffirst-5) decode/encode asm support
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 11:43:00 +0000 (12:43 +0100)]
add sv.cmp (ffirst-5) decode/encode asm support
* sv/trans/svp64.py needed a totally different ffirst handling
* CROpFF5RM needs to derive from FFPRRc0BaseRM and PredicateWidthBaseRM

2 years agoslightly different crops failfirst mode bits
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 11:18:30 +0000 (12:18 +0100)]
slightly different crops failfirst mode bits

2 years agoadd sv.cmp and try fail-first test_pysvp64dist.py
Luke Kenneth Casson Leighton [Thu, 6 Oct 2022 10:53:59 +0000 (11:53 +0100)]
add sv.cmp and try fail-first test_pysvp64dist.py

2 years agoremove complaints about standard Cray-style Vectors for the past 40 years
Luke Kenneth Casson Leighton [Sun, 2 Oct 2022 11:38:32 +0000 (12:38 +0100)]
remove complaints about standard Cray-style Vectors for the past 40 years
being able to have VL set to zero dynamically at runtime.
it is not appropriate to have complaints about 40-year-old standard
canonical behaviour of Cray Vectors in source code comments

VL=0 being set dynamically at runtime based on an algorithm input
sets the operations to nop because that is expected behaviour.
to not have VL=0 would be catastrophically inconvenient: it would
require either Illegal-Instruction traps to be raised, or Condition
Codes to be set and followed up with instructions to test and
branch for the dynamic condition when RA was zero, or to pre-test
for RA or CTR pre-being-zero prior to entry into a loop.

Data-Dependent Fail-First would become irrevocably damaged as well
as it is possible for VL to be set to zero at that time (first
test fails)

sv.bc would also be irrevocably damaged as it would no longer
be possible in VLSET mode to have VL become truncated to zero
dynamically based on a Condition Code.

in all it is pretty catastrophic to the entire Cray-Vector paradigm
and would severely damage SimpleV to disallow VL=0 purely for
arbitrary "convenience"

2 years agocomments for why preinc is called for svstep
Luke Kenneth Casson Leighton [Sun, 2 Oct 2022 02:29:39 +0000 (03:29 +0100)]
comments for why preinc is called for svstep

2 years agocomment out selectableint getitem logs
Luke Kenneth Casson Leighton [Sun, 2 Oct 2022 02:21:08 +0000 (03:21 +0100)]
comment out selectableint getitem logs

2 years agoskip svstate_pre_inc on svremap
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 23:35:08 +0000 (00:35 +0100)]
skip svstate_pre_inc on svremap
should not be needed

2 years agono svstate instruction
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 23:26:23 +0000 (00:26 +0100)]
no svstate instruction

2 years agosvstep calls SVSTATE_NEXT so needs svstate_pre_inc
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 23:24:25 +0000 (00:24 +0100)]
svstep calls SVSTATE_NEXT so needs svstate_pre_inc
setvl no longer calls SVSTATE_NEXT so does not

2 years agoremove special case from setvl calling SVSTATE_NEXT,
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 23:10:15 +0000 (00:10 +0100)]
remove special case from setvl calling SVSTATE_NEXT,
only accessible through svstep now

2 years agoreplacing setvl-svstep with just svstep
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 21:40:21 +0000 (22:40 +0100)]
replacing setvl-svstep with just svstep

2 years agoreplacing setvl-svstep with just svstep
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 21:36:04 +0000 (22:36 +0100)]
replacing setvl-svstep with just svstep

2 years agoreplacing setvl-svstep with just svstep
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 21:27:25 +0000 (22:27 +0100)]
replacing setvl-svstep with just svstep

2 years agocomments
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 16:00:06 +0000 (17:00 +0100)]
comments

2 years agocomments
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 15:55:13 +0000 (16:55 +0100)]
comments

2 years agominor cleanup in ISACaller on result handling
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 15:44:56 +0000 (16:44 +0100)]
minor cleanup in ISACaller on result handling
create a dictionary matched with output reg names, adapt handle_carry
handle_overflow etc. to use it. mostly

2 years agosimplify ISACaller execute_one
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 13:43:24 +0000 (14:43 +0100)]
simplify ISACaller execute_one

2 years agosimplify setting default SVSHAPE SPRs to zero
Luke Kenneth Casson Leighton [Sat, 1 Oct 2022 13:21:44 +0000 (14:21 +0100)]
simplify setting default SVSHAPE SPRs to zero

2 years agoincrease pcdec. output compression by skipping impossible codes
Jacob Lifshay [Sat, 1 Oct 2022 00:10:44 +0000 (17:10 -0700)]
increase pcdec. output compression by skipping impossible codes

2 years agoprefix codes tests pass
Jacob Lifshay [Fri, 30 Sep 2022 23:08:53 +0000 (16:08 -0700)]
prefix codes tests pass

2 years agono need for ctr mode on sv.bc
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 17:39:45 +0000 (18:39 +0100)]
no need for ctr mode on sv.bc

2 years agoctr mode not needed, just use unconditional CTR dec
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 17:37:35 +0000 (18:37 +0100)]
ctr mode not needed, just use unconditional CTR dec

2 years agoset srcstep/dststep to zero in StepLoop (ISACaller) at loopend
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 13:39:27 +0000 (14:39 +0100)]
set srcstep/dststep to zero in StepLoop (ISACaller) at loopend
see if a different style of looping can be used

2 years agoadd sv.bc vlset-inverted test
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 13:03:20 +0000 (14:03 +0100)]
add sv.bc vlset-inverted test

2 years agocomments/variables-cleanup
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 12:59:05 +0000 (13:59 +0100)]
comments/variables-cleanup

2 years agoadd sv.bc vlset-inverted test
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 11:28:19 +0000 (12:28 +0100)]
add sv.bc vlset-inverted test
this one inverts all the logic (some instead of all, LE instead of GT,
VL-truncate if FAIL)
and thus can swap the success-fail branch point.  avoids one branch in loops

2 years agoadd sv.bc/vs - VLset - test. truncates VL at the vector-condition-fail point
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 10:56:55 +0000 (11:56 +0100)]
add sv.bc/vs - VLset - test. truncates VL at the vector-condition-fail point

2 years agoadd code-comments in variance_svp64_real.s on how to use sv.bc/ctr/all
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 09:47:41 +0000 (10:47 +0100)]
add code-comments in variance_svp64_real.s on how to use sv.bc/ctr/all

2 years agoadd new sv.bc CTR-loop test, subtracts VL from CTR
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 09:37:57 +0000 (10:37 +0100)]
add new sv.bc CTR-loop test, subtracts VL from CTR

2 years agowhitespace
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 08:14:26 +0000 (09:14 +0100)]
whitespace

2 years agouse regs variables in get_predint
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 08:12:41 +0000 (09:12 +0100)]
use regs variables in get_predint

2 years agocomments
Luke Kenneth Casson Leighton [Fri, 30 Sep 2022 08:06:58 +0000 (09:06 +0100)]
comments

2 years agofix pcdec. assembly -- merge into va_form() since it's no longer VA2-form
Jacob Lifshay [Fri, 30 Sep 2022 03:49:16 +0000 (20:49 -0700)]
fix pcdec. assembly -- merge into va_form() since it's no longer VA2-form

2 years agofix pcdec.'s form
Jacob Lifshay [Fri, 30 Sep 2022 03:46:38 +0000 (20:46 -0700)]
fix pcdec.'s form

2 years agorewrite pcdec. pseudocode to work better for JPEG
Jacob Lifshay [Fri, 30 Sep 2022 03:17:50 +0000 (20:17 -0700)]
rewrite pcdec. pseudocode to work better for JPEG

the pcdec. unittests aren't updated yet

2 years agoadd lookup table generation for JPEG decode
Jacob Lifshay [Fri, 30 Sep 2022 01:44:47 +0000 (18:44 -0700)]
add lookup table generation for JPEG decode

2 years agoallow logging function to be overridden for Mem.log_fancy
Jacob Lifshay [Fri, 30 Sep 2022 01:44:23 +0000 (18:44 -0700)]
allow logging function to be overridden for Mem.log_fancy

2 years agoconvert svp64 bigint unittests to use TestAccumulatorBase
Jacob Lifshay [Thu, 29 Sep 2022 23:21:22 +0000 (16:21 -0700)]
convert svp64 bigint unittests to use TestAccumulatorBase

2 years agofinish changing to use adde, not addeo for bigint add
Jacob Lifshay [Thu, 29 Sep 2022 22:46:48 +0000 (15:46 -0700)]
finish changing to use adde, not addeo for bigint add

2 years agosv.adde not sv.addeo
Luke Kenneth Casson Leighton [Thu, 29 Sep 2022 18:00:30 +0000 (19:00 +0100)]
sv.adde not sv.addeo

2 years agodestination for maddedu and divmod2du for RS defaults to RC for scalar
Luke Kenneth Casson Leighton [Thu, 29 Sep 2022 14:06:52 +0000 (15:06 +0100)]
destination for maddedu and divmod2du for RS defaults to RC for scalar

2 years agowowser, complex. implementing maddedu implicit RC/RS rules.
Luke Kenneth Casson Leighton [Thu, 29 Sep 2022 13:59:45 +0000 (14:59 +0100)]
wowser, complex. implementing maddedu implicit RC/RS rules.
still TODO
    <!-- bit 8 of EXTRA is clear: RS.[s|v]=RT.[s|v]+MAXVL
    <!-- bit 8 of EXTRA is set  : RS.[s|v]=RC.[s|v]
actually it is currently "if RC is scalar then RS=RC" which is more
sensible

2 years agoadd carry-roll-over-vector-mul-with-add (!) unit test
Luke Kenneth Casson Leighton [Thu, 29 Sep 2022 13:57:26 +0000 (14:57 +0100)]
add carry-roll-over-vector-mul-with-add (!) unit test
test_caller_svp64_bigint.py
https://bugs.libre-soc.org/show_bug.cgi?id=937