1 # SPDX-License-Identifier: LGPLv3+
2 # Copyright (C) 2021 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
3 # Funded by NLnet http://nlnet.nl
5 """SVP64 OpenPOWER v3.0B assembly translator
7 This class takes raw svp64 assembly mnemonics (aliases excluded) and creates
8 an EXT001-encoded "svp64 prefix" (as a .long) followed by a v3.0B opcode.
10 It is very simple and straightforward, the only weirdness being the
11 extraction of the register information and conversion to v3.0B numbering.
13 Encoding format of svp64: https://libre-soc.org/openpower/sv/svp64/
14 Encoding format of arithmetic: https://libre-soc.org/openpower/sv/normal/
15 Encoding format of LDST: https://libre-soc.org/openpower/sv/ldst/
16 **TODO format of branches: https://libre-soc.org/openpower/sv/branches/**
17 **TODO format of CRs: https://libre-soc.org/openpower/sv/cr_ops/**
18 Bugtracker: https://bugs.libre-soc.org/show_bug.cgi?id=578
24 from collections
import OrderedDict
26 from openpower
.decoder
.pseudo
.pagereader
import ISA
27 from openpower
.decoder
.power_svp64
import SVP64RM
, get_regtype
, decode_extra
28 from openpower
.decoder
.selectable_int
import SelectableInt
29 from openpower
.consts
import SVP64MODE
30 from openpower
.decoder
.power_insn
import SVP64Instruction
31 from openpower
.decoder
.power_insn
import Database
32 from openpower
.decoder
.power_enums
import find_wiki_dir
35 from openpower
.util
import log
38 def instruction(*fields
):
39 def instruction(insn
, desc
):
40 (value
, start
, end
) = desc
41 bits
= ((1,) * ((end
+ 1) - start
))
44 mask
= ((mask
<< 1) | bit
)
45 return (insn |
((value
& mask
) << (31 - end
)))
47 return functools
.reduce(instruction
, fields
, 0)
50 def setvl(fields
, Rc
):
52 setvl is a *32-bit-only* instruction. It controls SVSTATE.
53 It is *not* a 64-bit-prefixed Vector instruction (no sv.setvl, yet),
54 it is a Vector *control* instruction.
56 * setvl RT,RA,SVi,vf,vs,ms
58 1.6.28 SVL-FORM - from fields.txt
59 |0 |6 |11 |16 |23 |24 |25 |26 |31 |
60 | PO | RT | RA | SVi |ms |vs |vf | XO |Rc |
64 # ARRRGH these are in a non-obvious order in openpower/isa/simplev.mdwn
65 # compared to the SVL-Form above. sigh
66 # setvl RT,RA,SVi,vf,vs,ms
67 (RT
, RA
, SVi
, vf
, vs
, ms
) = fields
82 def svstep(fields
, Rc
):
84 svstep is a 32-bit instruction. It updates SVSTATE.
85 It *can* be SVP64-prefixed, to indicate that its registers
90 # 1.6.28 SVL-FORM - from fields.txt
91 # |0 |6 |11 |16 |23 |24 |25 |26 |31 |
92 # | PO | RT | / | SVi |/ |/ |vf | XO |Rc |
97 (RT
, SVi
, vf
) = fields
114 svshape is a *32-bit-only* instruction. It updates SVSHAPE and SVSTATE.
115 It is *not* a 64-bit-prefixed Vector instruction (no sv.svshape, yet),
116 it is a Vector *control* instruction.
118 * svshape SVxd,SVyd,SVzd,SVrm,vf
120 # 1.6.33 SVM-FORM from fields.txt
121 # |0 |6 |11 |16 |21 |25 |26 |31 |
122 # | PO | SVxd | SVyd | SVzd | SVrm |vf | XO |
127 (SVxd
, SVyd
, SVzd
, SVrm
, vf
) = fields
144 svindex is a *32-bit-only* instruction. It is a convenience
145 instruction that reduces instruction count for Indexed REMAP
147 It is *not* a 64-bit-prefixed Vector instruction (no sv.svindex, yet),
148 it is a Vector *control* instruction.
151 |0 |6 |11 |16 |21 |23|24|25|26 31|
152 | PO | SVG|rmm | SVd |ew |yx|mm|sk| XO |
154 # note that the dimension field one subtracted
157 (SVG
, rmm
, SVd
, ew
, yx
, mm
, sk
) = fields
174 this is a *32-bit-only* instruction. It updates the SVSHAPE SPR
175 it is *not* a 64-bit-prefixed Vector instruction (no sv.svremap),
176 it is a Vector *control* instruction.
178 * svremap SVme,mi0,mi1,mi2,mo0,mo1,pst
181 |0 |6 |11 |13 |15 |17 |19 |21 |22 |26 |31 |
182 | PO | SVme |mi0 | mi1 | mi2 | mo0 | mo1 |pst |/// | XO |
187 (SVme
, mi0
, mi1
, mi2
, mo0
, mo1
, pst
) = fields
202 # ok from here-on down these are added as 32-bit instructions
203 # and are here only because binutils (at present) doesn't have
204 # them (that's being fixed!)
205 # they can - if implementations then choose - be Vectorised
206 # because they are general-purpose scalar instructions
210 |0 |6 |11 |16 |21 |26 |27 31|
211 | PO | RT | RA | RB |bm |L | XO |
215 (RT
, RA
, RB
, bm
, L
) = fields
227 def fsins(fields
, Rc
):
228 # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
229 # however we are out of space with opcode 22
231 # |0 |6 |7|8|9 |10 |11|12|13 |15|16|17 |20|21 |31 |
232 # | PO | FRT | /// | FRB | XO |Rc |
246 def fcoss(fields
, Rc
):
247 # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
248 # however we are out of space with opcode 22
250 # |0 |6 |7|8|9 |10 |11|12|13 |15|16|17 |20|21 |31 |
251 # | PO | FRT | /// | FRB | XO |Rc |
265 def ternlogi(fields
, Rc
):
266 # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
267 # however we are out of space with opcode 22
269 # |0 |6 |11 |16 |21 |29 |31 |
270 # | PO | RT | RA | RB | TLI | XO |Rc |
273 (RT
, RA
, RB
, TLI
) = fields
285 def grev(fields
, Rc
, imm
, wide
):
286 # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
287 # however we are out of space with opcode 22
289 # _ matches fields in table at:
290 # https://libre-soc.org/openPOwer/sv/bitmanip/
296 (RT
, RA
, XBI
) = fields
297 insn
= (insn
<< 5) | RT
298 insn
= (insn
<< 5) | RA
301 insn
= (insn
<< 6) | XBI
302 insn
= (insn
<< 9) | XO
305 insn
= (insn
<< 5) | XBI
306 insn
= (insn
<< 10) | XO
307 insn
= (insn
<< 1) | Rc
311 def av(fields
, XO
, Rc
):
313 # |0 |6 |7|8|9 |10 |11|12|13 |15|16|17 |20|21 |31 |
314 # | PO | RT | RA | RB | XO |Rc |
316 (RT
, RA
, RB
) = fields
328 # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
329 # V3.0B 1.6.6 DX-FORM
330 # |0 |6 |7|8|9 |10 |11|12|13 |15|16|17 |26|27 |31 |
331 # | PO | FRS | d1 | d0 | XO |d2 |
335 # first split imm into d1, d0 and d2. sigh
336 d2
= (imm
& 1) # LSB (0)
337 d1
= (imm
>> 1) & 0b11111 # bits 1-5
338 d0
= (imm
>> 6) # MSBs 6-15
350 # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
351 # V3.0B 1.6.6 DX-FORM
352 # |0 |6 |7|8|9 |10 |11|12|13 |15|16|17 |26|27 |31 |
353 # | PO | FRS | d1 | d0 | XO |d2 |
357 # first split imm into d1, d0 and d2. sigh
358 d2
= (imm
& 1) # LSB (0)
359 d1
= (imm
>> 1) & 0b11111 # bits 1-5
360 d0
= (imm
>> 6) # MSBs 6-15
372 for (name
, hook
) in (
377 ("ternlogi", ternlogi
),
379 CUSTOM_INSNS
[name
] = functools
.partial(hook
, Rc
=False)
380 CUSTOM_INSNS
[f
"{name}."] = functools
.partial(hook
, Rc
=True)
381 CUSTOM_INSNS
["bmask"] = bmask
382 CUSTOM_INSNS
["svshape"] = svshape
383 CUSTOM_INSNS
["svindex"] = svindex
384 CUSTOM_INSNS
["svremap"] = svremap
385 CUSTOM_INSNS
["fmvis"] = fmvis
386 CUSTOM_INSNS
["fishmv"] = fishmv
388 for (name
, imm
, wide
) in (
389 ("grev", False, False),
390 ("grevi", True, False),
391 ("grevw", False, True),
392 ("grevwi", True, True),
394 CUSTOM_INSNS
[name
] = functools
.partial(grev
,
395 imm
=("i" in name
), wide
=("w" in name
), Rc
=False)
396 CUSTOM_INSNS
[f
"{name}."] = functools
.partial(grev
,
397 imm
=("i" in name
), wide
=("w" in name
), Rc
=True)
400 ("maxs", 0b0111001110),
401 ("maxu", 0b0011001110),
402 ("minu", 0b0001001110),
403 ("mins", 0b0101001110),
404 ("absdu", 0b1011110110),
405 ("absds", 0b1001110110),
406 ("avgadd", 0b1101001110),
407 ("absdacu", 0b1111110110),
408 ("absdacs", 0b0111110110),
409 ("cprop", 0b0110001110),
411 CUSTOM_INSNS
[name
] = functools
.partial(av
, XO
=XO
, Rc
=False)
412 CUSTOM_INSNS
[f
"{name}."] = functools
.partial(av
, XO
=XO
, Rc
=True)
415 # decode GPR into sv extra
416 def get_extra_gpr(etype
, regmode
, field
):
417 if regmode
== 'scalar':
418 # cut into 2-bits 5-bits SS FFFFF
419 sv_extra
= field
>> 5
420 field
= field
& 0b11111
422 # cut into 5-bits 2-bits FFFFF SS
423 sv_extra
= field
& 0b11
425 return sv_extra
, field
428 # decode 3-bit CR into sv extra
429 def get_extra_cr_3bit(etype
, regmode
, field
):
430 if regmode
== 'scalar':
431 # cut into 2-bits 3-bits SS FFF
432 sv_extra
= field
>> 3
433 field
= field
& 0b111
435 # cut into 3-bits 4-bits FFF SSSS but will cut 2 zeros off later
436 sv_extra
= field
& 0b1111
438 return sv_extra
, field
442 def decode_subvl(encoding
):
443 pmap
= {'2': 0b01, '3': 0b10, '4': 0b11}
444 assert encoding
in pmap
, \
445 "encoding %s for SUBVL not recognised" % encoding
446 return pmap
[encoding
]
450 def decode_elwidth(encoding
):
451 pmap
= {'8': 0b11, '16': 0b10, '32': 0b01}
452 assert encoding
in pmap
, \
453 "encoding %s for elwidth not recognised" % encoding
454 return pmap
[encoding
]
457 # decodes predicate register encoding
458 def decode_predicate(encoding
):
469 'nl': (1, 0b001), 'ge': (1, 0b001), # same value
471 'ng': (1, 0b011), 'le': (1, 0b011), # same value
474 'so': (1, 0b110), 'un': (1, 0b110), # same value
475 'ns': (1, 0b111), 'nu': (1, 0b111), # same value
477 assert encoding
in pmap
, \
478 "encoding %s for predicate not recognised" % encoding
479 return pmap
[encoding
]
482 # decodes "Mode" in similar way to BO field (supposed to, anyway)
483 def decode_bo(encoding
):
484 pmap
= { # TODO: double-check that these are the same as Branch BO
486 'nl': 0b001, 'ge': 0b001, # same value
488 'ng': 0b011, 'le': 0b011, # same value
491 'so': 0b110, 'un': 0b110, # same value
492 'ns': 0b111, 'nu': 0b111, # same value
494 assert encoding
in pmap
, \
495 "encoding %s for BO Mode not recognised" % encoding
496 return pmap
[encoding
]
498 # partial-decode fail-first mode
501 def decode_ffirst(encoding
):
502 if encoding
in ['RC1', '~RC1']:
504 return decode_bo(encoding
)
507 def decode_reg(field
, macros
=None):
510 # decode the field number. "5.v" or "3.s" or "9"
511 # and now also "*0", and "*%0". note: *NOT* to add "*%rNNN" etc.
512 # https://bugs.libre-soc.org/show_bug.cgi?id=884#c0
513 if field
.startswith(("*%", "*")):
514 if field
.startswith("*%"):
518 while field
in macros
:
519 field
= macros
[field
]
520 return int(field
), "vector" # actual register number
522 # try old convention (to be retired)
523 field
= field
.split(".")
524 regmode
= 'scalar' # default
528 elif field
[1] == 'v':
530 field
= int(field
[0]) # actual register number
531 return field
, regmode
534 def decode_imm(field
):
535 ldst_imm
= "(" in field
and field
[-1] == ')'
537 return field
[:-1].split("(")
542 def crf_extra(etype
, regmode
, field
, extras
):
543 """takes a CR Field number (CR0-CR127), splits into EXTRA2/3 and v3.0
544 the scalar/vector mode (crNN.v or crNN.s) changes both the format
545 of the EXTRA2/3 encoding as well as what range of registers is possible.
546 this function can be used for both BF/BFA and BA/BB/BT by first removing
547 the bottom 2 bits of BA/BB/BT then re-instating them after encoding.
548 see https://libre-soc.org/openpower/sv/svp64/appendix/#cr_extra
551 sv_extra
, field
= get_extra_cr_3bit(etype
, regmode
, field
)
552 # now sanity-check (and shrink afterwards)
553 if etype
== 'EXTRA2':
554 # 3-bit CR Field (BF, BFA) EXTRA2 encoding
555 if regmode
== 'scalar':
556 # range is CR0-CR15 in increments of 1
557 assert (sv_extra
>> 1) == 0, \
558 "scalar CR %s cannot fit into EXTRA2 %s" % \
559 (rname
, str(extras
[extra_idx
]))
560 # all good: encode as scalar
561 sv_extra
= sv_extra
& 0b01
563 # range is CR0-CR127 in increments of 16
564 assert sv_extra
& 0b111 == 0, \
565 "vector CR %s cannot fit into EXTRA2 %s" % \
566 (rname
, str(extras
[extra_idx
]))
567 # all good: encode as vector (bit 2 set)
568 sv_extra
= 0b10 |
(sv_extra
>> 3)
570 # 3-bit CR Field (BF, BFA) EXTRA3 encoding
571 if regmode
== 'scalar':
572 # range is CR0-CR31 in increments of 1
573 assert (sv_extra
>> 2) == 0, \
574 "scalar CR %s cannot fit into EXTRA3 %s" % \
575 (rname
, str(extras
[extra_idx
]))
576 # all good: encode as scalar
577 sv_extra
= sv_extra
& 0b11
579 # range is CR0-CR127 in increments of 8
580 assert sv_extra
& 0b11 == 0, \
581 "vector CR %s cannot fit into EXTRA3 %s" % \
582 (rname
, str(extras
[extra_idx
]))
583 # all good: encode as vector (bit 3 set)
584 sv_extra
= 0b100 |
(sv_extra
>> 2)
585 return sv_extra
, field
588 def to_number(field
):
589 if field
.startswith("0x"):
591 if field
.startswith("0b"):
596 # decodes svp64 assembly listings and creates EXT001 svp64 prefixes
598 def __init__(self
, lst
, bigendian
=False, macros
=None):
603 self
.trans
= self
.translate(lst
)
604 self
.isa
= ISA() # reads the v3.0B pseudo-code markdown files
605 self
.svp64
= SVP64RM() # reads the svp64 Remap entries for registers
606 assert bigendian
== False, "error, bigendian not supported yet"
609 yield from self
.trans
611 def translate_one(self
, insn
, macros
=None):
614 macros
.update(self
.macros
)
617 insn_no_comments
= insn
.partition('#')[0]
618 # find first space, to get opcode
619 ls
= insn_no_comments
.split(' ')
621 # now find opcode fields
622 fields
= ''.join(ls
[1:]).split(',')
623 mfields
= list(map(str.strip
, fields
))
624 log("opcode, fields", ls
, opcode
, mfields
)
627 for field
in mfields
:
628 fields
.append(macro_subst(macros
, field
))
629 log("opcode, fields substed", ls
, opcode
, fields
)
631 # identify if it is a special instruction
632 custom_insn_hook
= CUSTOM_INSNS
.get(opcode
)
633 if custom_insn_hook
is not None:
634 fields
= tuple(map(to_number
, fields
))
635 insn_num
= custom_insn_hook(fields
)
636 log(opcode
, bin(insn_num
))
637 yield ".long 0x%X # %s" % (insn_num
, insn
)
640 # identify if is a svp64 mnemonic
641 if not opcode
.startswith('sv.'):
642 yield insn
# unaltered
644 opcode
= opcode
[3:] # strip leading "sv"
646 # start working on decoding the svp64 op: sv.basev30Bop/vec2/mode
647 opmodes
= opcode
.split("/") # split at "/"
648 v30b_op_orig
= opmodes
.pop(0) # first is the v3.0B
649 # check instruction ends with dot
650 rc_mode
= v30b_op_orig
.endswith('.')
652 v30b_op
= v30b_op_orig
[:-1]
654 v30b_op
= v30b_op_orig
656 # look up the 32-bit op (original, with "." if it has it)
657 if v30b_op_orig
in isa
.instr
:
658 isa_instr
= isa
.instr
[v30b_op_orig
]
660 raise Exception("opcode %s of '%s' not supported" %
661 (v30b_op_orig
, insn
))
663 # look up the svp64 op, first the original (with "." if it has it)
664 if v30b_op_orig
in svp64
.instrs
:
665 rm
= svp64
.instrs
[v30b_op_orig
] # one row of the svp64 RM CSV
666 # then without the "." (if there was one)
667 elif v30b_op
in svp64
.instrs
:
668 rm
= svp64
.instrs
[v30b_op
] # one row of the svp64 RM CSV
670 raise Exception(f
"opcode {v30b_op_orig!r} of "
671 f
"{insn!r} not an svp64 instruction")
673 # get regs info e.g. "RT,RA,RB"
674 v30b_regs
= isa_instr
.regs
[0]
675 log("v3.0B op", v30b_op
, "Rc=1" if rc_mode
else '')
676 log("v3.0B regs", opcode
, v30b_regs
)
679 # right. the first thing to do is identify the ordering of
680 # the registers, by name. the EXTRA2/3 ordering is in
681 # rm['0']..rm['3'] but those fields contain the names RA, BB
682 # etc. we have to read the pseudocode to understand which
683 # reg is which in our instruction. sigh.
685 # first turn the svp64 rm into a "by name" dict, recording
686 # which position in the RM EXTRA it goes into
687 # also: record if the src or dest was a CR, for sanity-checking
688 # (elwidth overrides on CRs are banned)
689 decode
= decode_extra(rm
)
690 dest_reg_cr
, src_reg_cr
, svp64_src
, svp64_dest
= decode
692 log("EXTRA field index, src", svp64_src
)
693 log("EXTRA field index, dest", svp64_dest
)
695 # okaaay now we identify the field value (opcode N,N,N) with
696 # the pseudo-code info (opcode RT, RA, RB)
697 assert len(fields
) == len(v30b_regs
), \
698 "length of fields %s must match insn `%s` fields %s" % \
699 (str(v30b_regs
), insn
, str(fields
))
700 opregfields
= zip(fields
, v30b_regs
) # err that was easy
702 # now for each of those find its place in the EXTRA encoding
703 # note there is the possibility (for LD/ST-with-update) of
704 # RA occurring **TWICE**. to avoid it getting added to the
705 # v3.0B suffix twice, we spot it as a duplicate, here
706 extras
= OrderedDict()
707 for idx
, (field
, regname
) in enumerate(opregfields
):
708 imm
, regname
= decode_imm(regname
)
709 rtype
= get_regtype(regname
)
710 log(" idx find", rtype
, idx
, field
, regname
, imm
)
712 # probably an immediate field, append it straight
713 extras
[('imm', idx
, False)] = (idx
, field
, None, None, None)
715 extra
= svp64_src
.get(regname
, None)
716 if extra
is not None:
717 extra
= ('s', extra
, False) # not a duplicate
718 extras
[extra
] = (idx
, field
, regname
, rtype
, imm
)
719 log(" idx src", idx
, extra
, extras
[extra
])
720 dextra
= svp64_dest
.get(regname
, None)
721 log("regname in", regname
, dextra
)
722 if dextra
is not None:
723 is_a_duplicate
= extra
is not None # duplicate spotted
724 dextra
= ('d', dextra
, is_a_duplicate
)
725 extras
[dextra
] = (idx
, field
, regname
, rtype
, imm
)
726 log(" idx dst", idx
, extra
, extras
[dextra
])
728 # great! got the extra fields in their associated positions:
729 # also we know the register type. now to create the EXTRA encodings
730 etype
= rm
['Etype'] # Extra type: EXTRA3/EXTRA2
731 ptype
= rm
['Ptype'] # Predication type: Twin / Single
734 for extra_idx
, (idx
, field
, rname
, rtype
, iname
) in extras
.items():
735 # is it a field we don't alter/examine? if so just put it
738 v30b_newfields
.append(field
)
741 # identify if this is a ld/st immediate(reg) thing
742 ldst_imm
= "(" in field
and field
[-1] == ')'
744 immed
, field
= field
[:-1].split("(")
746 field
, regmode
= decode_reg(field
, macros
=macros
)
747 log(" ", extra_idx
, rname
, rtype
,
748 regmode
, iname
, field
, end
=" ")
750 # see Mode field https://libre-soc.org/openpower/sv/svp64/
751 # XXX TODO: the following is a bit of a laborious repeated
752 # mess, which could (and should) easily be parameterised.
753 # XXX also TODO: the LD/ST modes which are different
754 # https://libre-soc.org/openpower/sv/ldst/
756 # rright. SVP64 register numbering is from 0 to 127
757 # for GPRs, FPRs *and* CR Fields, where for v3.0 the GPRs and RPFs
758 # are 0-31 and CR Fields are only 0-7. the SVP64 RM "Extra"
759 # area is used to extend the numbering from the 32-bit
760 # instruction, and also to record whether the register
761 # is scalar or vector. on a per-operand basis. this
762 # results in a slightly finnicky encoding: here we go...
764 # encode SV-GPR and SV-FPR field into extra, v3.0field
765 if rtype
in ['GPR', 'FPR']:
766 sv_extra
, field
= get_extra_gpr(etype
, regmode
, field
)
767 # now sanity-check. EXTRA3 is ok, EXTRA2 has limits
768 # (and shrink to a single bit if ok)
769 if etype
== 'EXTRA2':
770 if regmode
== 'scalar':
771 # range is r0-r63 in increments of 1
772 assert (sv_extra
>> 1) == 0, \
773 "scalar GPR %s cannot fit into EXTRA2 %s" % \
774 (rname
, str(extras
[extra_idx
]))
775 # all good: encode as scalar
776 sv_extra
= sv_extra
& 0b01
778 # range is r0-r127 in increments of 2 (r0 r2 ... r126)
779 assert sv_extra
& 0b01 == 0, \
780 "%s: vector field %s cannot fit " \
782 (insn
, rname
, str(extras
[extra_idx
]))
783 # all good: encode as vector (bit 2 set)
784 sv_extra
= 0b10 |
(sv_extra
>> 1)
785 elif regmode
== 'vector':
786 # EXTRA3 vector bit needs marking
789 # encode SV-CR 3-bit field into extra, v3.0field.
790 # 3-bit is for things like BF and BFA
791 elif rtype
== 'CR_3bit':
792 sv_extra
, field
= crf_extra(etype
, regmode
, field
, extras
)
794 # encode SV-CR 5-bit field into extra, v3.0field
795 # 5-bit is for things like BA BB BC BT etc.
796 # *sigh* this is the same as 3-bit except the 2 LSBs of the
797 # 5-bit field are passed through unaltered.
798 elif rtype
== 'CR_5bit':
799 cr_subfield
= field
& 0b11 # record bottom 2 bits for later
800 field
= field
>> 2 # strip bottom 2 bits
801 # use the exact same 3-bit function for the top 3 bits
802 sv_extra
, field
= crf_extra(etype
, regmode
, field
, extras
)
803 # reconstruct the actual 5-bit CR field (preserving the
804 # bottom 2 bits, unaltered)
805 field
= (field
<< 2) | cr_subfield
808 raise Exception("no type match: %s" % rtype
)
810 # capture the extra field info
811 log("=>", "%5s" % bin(sv_extra
), field
)
812 extras
[extra_idx
] = sv_extra
814 # append altered field value to v3.0b, differs for LDST
815 # note that duplicates are skipped e.g. EXTRA2 contains
816 # *BOTH* s:RA *AND* d:RA which happens on LD/ST-with-update
817 srcdest
, idx
, duplicate
= extra_idx
818 if duplicate
: # skip adding to v3.0b fields, already added
821 v30b_newfields
.append(("%s(%s)" % (immed
, str(field
))))
823 v30b_newfields
.append(str(field
))
825 log("new v3.0B fields", v30b_op
, v30b_newfields
)
826 log("extras", extras
)
828 # rright. now we have all the info. start creating SVP64 instruction.
829 db
= Database(find_wiki_dir())
830 svp64_insn
= SVP64Instruction
.pair(prefix
=0, suffix
=0)
831 svp64_prefix
= svp64_insn
.prefix
832 svp64_rm
= svp64_insn
.prefix
.rm
834 # begin with EXTRA fields
835 for idx
, sv_extra
in extras
.items():
841 srcdest
, idx
, duplicate
= idx
842 if etype
== 'EXTRA2':
843 svp64_rm
.extra2
[idx
] = sv_extra
845 svp64_rm
.extra3
[idx
] = sv_extra
847 # identify if the op is a LD/ST. the "blegh" way. copied
848 # from power_enums. TODO, split the list _insns down.
850 "lbarx", "lbz", "lbzu", "lbzux", "lbzx", # load byte
851 "ld", "ldarx", "ldbrx", "ldu", "ldux", "ldx", # load double
852 "lfs", "lfsx", "lfsu", "lfsux", # FP load single
853 "lfd", "lfdx", "lfdu", "lfdux", "lfiwzx", "lfiwax", # FP load dbl
854 "lha", "lharx", "lhau", "lhaux", "lhax", # load half
855 "lhbrx", "lhz", "lhzu", "lhzux", "lhzx", # more load half
856 "lwa", "lwarx", "lwaux", "lwax", "lwbrx", # load word
857 "lwz", "lwzcix", "lwzu", "lwzux", "lwzx", # more load word
860 "stb", "stbcix", "stbcx", "stbu", "stbux", "stbx",
861 "std", "stdbrx", "stdcx", "stdu", "stdux", "stdx",
862 "stfs", "stfsx", "stfsu", "stfux", # FP store sgl
863 "stfd", "stfdx", "stfdu", "stfdux", "stfiwx", # FP store dbl
864 "sth", "sthbrx", "sthcx", "sthu", "sthux", "sthx",
865 "stw", "stwbrx", "stwcx", "stwu", "stwux", "stwx",
867 # use this to determine if the SVP64 RM format is different.
868 # see https://libre-soc.org/openpower/sv/ldst/
869 is_ldst
= is_ld
or is_st
871 # branch-conditional detection
879 destwid
= 0 # bits 4-5
880 srcwid
= 0 # bits 6-7
882 smask
= 0 # bits 16-18 but only for twin-predication
883 mode
= 0 # bits 19-23
885 mask_m_specified
= False
896 mapreduce_crm
= False
897 mapreduce_svm
= False
903 # branch-conditional bits
913 # ok let's start identifying opcode augmentation fields
914 for encmode
in opmodes
:
915 # predicate mask (src and dest)
916 if encmode
.startswith("m="):
918 pmmode
, pmask
= decode_predicate(encmode
[2:])
919 smmode
, smask
= pmmode
, pmask
921 mask_m_specified
= True
922 # predicate mask (dest)
923 elif encmode
.startswith("dm="):
925 pmmode
, pmask
= decode_predicate(encmode
[3:])
928 # predicate mask (src, twin-pred)
929 elif encmode
.startswith("sm="):
931 smmode
, smask
= decode_predicate(encmode
[3:])
935 elif encmode
.startswith("vec"):
936 subvl
= decode_subvl(encmode
[3:])
938 elif encmode
.startswith("ew="):
939 destwid
= decode_elwidth(encmode
[3:])
940 elif encmode
.startswith("sw="):
941 srcwid
= decode_elwidth(encmode
[3:])
942 # element-strided LD/ST
943 elif encmode
== 'els':
946 elif encmode
== 'sats':
947 assert sv_mode
is None
950 elif encmode
== 'satu':
951 assert sv_mode
is None
955 elif encmode
== 'sz':
957 elif encmode
== 'dz':
960 elif encmode
.startswith("ff="):
961 assert sv_mode
is None
963 failfirst
= decode_ffirst(encmode
[3:])
964 # predicate-result, interestingly same as fail-first
965 elif encmode
.startswith("pr="):
966 assert sv_mode
is None
968 predresult
= decode_ffirst(encmode
[3:])
969 # map-reduce mode, reverse-gear
970 elif encmode
== 'mrr':
971 assert sv_mode
is None
976 elif encmode
== 'mr':
977 assert sv_mode
is None
980 elif encmode
== 'crm': # CR on map-reduce
981 assert sv_mode
is None
984 elif encmode
== 'svm': # sub-vector mode
989 elif encmode
== 'st': # svstep mode
991 elif encmode
== 'sr': # svstep BRc mode
994 elif encmode
== 'vs': # VLSET mode
996 elif encmode
== 'vsi': # VLSET mode with VLI (VL inclusives)
999 elif encmode
== 'vsb': # VLSET mode with VSb
1002 elif encmode
== 'vsbi': # VLSET mode with VLI and VSb
1006 elif encmode
== 'snz': # sz (only) already set above
1009 elif encmode
== 'lu': # LR update mode
1012 raise AssertionError("unknown encmode %s" % encmode
)
1014 raise AssertionError("unknown encmode %s" % encmode
)
1017 # since m=xx takes precedence (overrides) sm=xx and dm=xx,
1018 # treat them as mutually exclusive
1019 if mask_m_specified
:
1020 assert not has_smask
,\
1021 "cannot have both source-mask and predicate mask"
1022 assert not has_pmask
,\
1023 "cannot have both dest-mask and predicate mask"
1024 # since the default is INT predication (ALWAYS), if you
1025 # specify one CR mask, you must specify both, to avoid
1026 # mixing INT and CR reg types
1027 if has_pmask
and pmmode
== 1:
1029 "need explicit source-mask in CR twin predication"
1030 if has_smask
and smmode
== 1:
1032 "need explicit dest-mask in CR twin predication"
1033 # sanity-check that 2Pred mask is same mode
1034 if has_pmask
and has_smask
:
1035 assert smmode
== pmmode
, \
1036 "predicate masks %s and %s must be same reg type" % \
1039 # sanity-check that twin-predication mask only specified in 2P mode
1041 assert not has_smask
, \
1042 "source-mask can only be specified on Twin-predicate ops"
1043 assert not has_pmask
, \
1044 "dest-mask can only be specified on Twin-predicate ops"
1046 # construct the mode field, doing sanity-checking along the way
1048 assert sv_mode
== 0b00, "sub-vector mode in mapreduce only"
1049 assert subvl
!= 0, "sub-vector mode not possible on SUBVL=1"
1052 assert has_smask
or mask_m_specified
, \
1053 "src zeroing requires a source predicate"
1055 assert has_pmask
or mask_m_specified
, \
1056 "dest zeroing requires a dest predicate"
1058 # okaaay, so there are 4 different modes, here, which will be
1059 # partly-merged-in: is_ldst is merged in with "normal", but
1060 # is_bc is so different it's done separately. likewise is_cr
1061 # (when it is done). here are the maps:
1063 # for "normal" arithmetic: https://libre-soc.org/openpower/sv/normal/
1065 | 0-1 | 2 | 3 4 | description |
1066 | --- | --- |---------|-------------------------- |
1067 | 00 | 0 | dz sz | normal mode |
1068 | 00 | 1 | 0 RG | scalar reduce mode (mapreduce), SUBVL=1 |
1069 | 00 | 1 | 1 / | parallel reduce mode (mapreduce), SUBVL=1 |
1070 | 00 | 1 | SVM RG | subvector reduce mode, SUBVL>1 |
1071 | 01 | inv | CR-bit | Rc=1: ffirst CR sel |
1072 | 01 | inv | VLi RC1 | Rc=0: ffirst z/nonz |
1073 | 10 | N | dz sz | sat mode: N=0/1 u/s |
1074 | 11 | inv | CR-bit | Rc=1: pred-result CR sel |
1075 | 11 | inv | dz RC1 | Rc=0: pred-result z/nonz |
1078 # https://libre-soc.org/openpower/sv/ldst/
1079 # for LD/ST-immediate:
1081 | 0-1 | 2 | 3 4 | description |
1082 | --- | --- |---------|--------------------------- |
1083 | 00 | 0 | dz els | normal mode |
1084 | 00 | 1 | dz shf | shift mode |
1085 | 01 | inv | CR-bit | Rc=1: ffirst CR sel |
1086 | 01 | inv | els RC1 | Rc=0: ffirst z/nonz |
1087 | 10 | N | dz els | sat mode: N=0/1 u/s |
1088 | 11 | inv | CR-bit | Rc=1: pred-result CR sel |
1089 | 11 | inv | els RC1 | Rc=0: pred-result z/nonz |
1092 # for LD/ST-indexed (RA+RB):
1094 | 0-1 | 2 | 3 4 | description |
1095 | --- | --- |---------|-------------------------- |
1096 | 00 | SEA | dz sz | normal mode |
1097 | 01 | SEA | dz sz | Strided (scalar only source) |
1098 | 10 | N | dz sz | sat mode: N=0/1 u/s |
1099 | 11 | inv | CR-bit | Rc=1: pred-result CR sel |
1100 | 11 | inv | dz RC1 | Rc=0: pred-result z/nonz |
1103 # and leaving out branches and cr_ops for now because they're
1105 """ TODO branches and cr_ops
1108 # now create mode and (overridden) src/dst widths
1109 # XXX TODO: sanity-check bc modes
1111 sv_mode
= ((bc_svstep
<< SVP64MODE
.MOD2_MSB
) |
1112 (bc_vlset
<< SVP64MODE
.MOD2_LSB
) |
1113 (bc_snz
<< SVP64MODE
.BC_SNZ
))
1114 srcwid
= (bc_vsb
<< 1) | bc_lru
1115 destwid
= (bc_lru
<< 1) | bc_all
1119 ######################################
1122 mode |
= src_zero
<< SVP64MODE
.SZ
# predicate zeroing
1123 mode |
= dst_zero
<< SVP64MODE
.DZ
# predicate zeroing
1125 # TODO: for now, LD/ST-indexed is ignored.
1126 mode |
= ldst_elstride
<< SVP64MODE
.ELS_NORMAL
# el-strided
1128 # TODO, reduce and subvector mode
1129 # 00 1 dz CRM reduce mode (mapreduce), SUBVL=1
1130 # 00 1 SVM CRM subvector reduce mode, SUBVL>1
1134 ######################################
1136 elif sv_mode
== 0b00:
1137 mode |
= (0b1 << SVP64MODE
.REDUCE
) # sets mapreduce
1138 assert dst_zero
== 0, "dest-zero not allowed in mapreduce mode"
1140 mode |
= (0b1 << SVP64MODE
.RG
) # sets Reverse-gear mode
1142 mode |
= (0b1 << SVP64MODE
.CRM
) # sets CRM mode
1143 assert rc_mode
, "CRM only allowed when Rc=1"
1144 # bit of weird encoding to jam zero-pred or SVM mode in.
1145 # SVM mode can be enabled only when SUBVL=2/3/4 (vec2/3/4)
1147 mode |
= dst_zero
<< SVP64MODE
.DZ
# predicate zeroing
1149 mode |
= (0b1 << SVP64MODE
.SVM
) # sets SVM mode
1151 ######################################
1153 elif sv_mode
== 0b01:
1154 assert src_zero
== 0, "dest-zero not allowed in failfirst mode"
1155 if failfirst
== 'RC1':
1156 mode |
= (0b1 << SVP64MODE
.RC1
) # sets RC1 mode
1157 mode |
= (dst_zero
<< SVP64MODE
.DZ
) # predicate dst-zeroing
1158 assert rc_mode
== False, "ffirst RC1 only ok when Rc=0"
1159 elif failfirst
== '~RC1':
1160 mode |
= (0b1 << SVP64MODE
.RC1
) # sets RC1 mode
1161 mode |
= (dst_zero
<< SVP64MODE
.DZ
) # predicate dst-zeroing
1162 mode |
= (0b1 << SVP64MODE
.INV
) # ... with inversion
1163 assert rc_mode
== False, "ffirst RC1 only ok when Rc=0"
1165 assert dst_zero
== 0, "dst-zero not allowed in ffirst BO"
1166 assert rc_mode
, "ffirst BO only possible when Rc=1"
1167 mode |
= (failfirst
<< SVP64MODE
.BO_LSB
) # set BO
1169 ######################################
1170 # "saturation" modes
1171 elif sv_mode
== 0b10:
1172 mode |
= src_zero
<< SVP64MODE
.SZ
# predicate zeroing
1173 mode |
= dst_zero
<< SVP64MODE
.DZ
# predicate zeroing
1174 mode |
= (saturation
<< SVP64MODE
.N
) # signed/us saturation
1176 ######################################
1177 # "predicate-result" modes. err... code-duplication from ffirst
1178 elif sv_mode
== 0b11:
1179 assert src_zero
== 0, "dest-zero not allowed in predresult mode"
1180 if predresult
== 'RC1':
1181 mode |
= (0b1 << SVP64MODE
.RC1
) # sets RC1 mode
1182 mode |
= (dst_zero
<< SVP64MODE
.DZ
) # predicate dst-zeroing
1183 assert rc_mode
== False, "pr-mode RC1 only ok when Rc=0"
1184 elif predresult
== '~RC1':
1185 mode |
= (0b1 << SVP64MODE
.RC1
) # sets RC1 mode
1186 mode |
= (dst_zero
<< SVP64MODE
.DZ
) # predicate dst-zeroing
1187 mode |
= (0b1 << SVP64MODE
.INV
) # ... with inversion
1188 assert rc_mode
== False, "pr-mode RC1 only ok when Rc=0"
1190 assert dst_zero
== 0, "dst-zero not allowed in pr-mode BO"
1191 assert rc_mode
, "pr-mode BO only possible when Rc=1"
1192 mode |
= (predresult
<< SVP64MODE
.BO_LSB
) # set BO
1194 # whewww.... modes all done :)
1195 # now put into svp64_rm
1198 svp64_rm
.mode
= mode
1200 # put in predicate masks into svp64_rm
1202 # source pred: bits 16-18
1203 svp64_rm
.smask
= smask
1205 svp64_rm
.mmode
= mmode
1207 svp64_rm
.mask
= pmask
1209 # and subvl: bits 8-9
1210 svp64_rm
.subvl
= subvl
1214 svp64_rm
.ewsrc
= srcwid
1216 svp64_rm
.elwidth
= destwid
1218 # nice debug printout. (and now for something completely different)
1219 # https://youtu.be/u0WOIwlXE9g?t=146
1220 svp64_rm_value
= int(svp64_rm
)
1221 log("svp64_rm", hex(svp64_rm_value
), bin(svp64_rm_value
))
1222 log(" mmode 0 :", bin(mmode
))
1223 log(" pmask 1-3 :", bin(pmask
))
1224 log(" dstwid 4-5 :", bin(destwid
))
1225 log(" srcwid 6-7 :", bin(srcwid
))
1226 log(" subvl 8-9 :", bin(subvl
))
1227 log(" mode 19-23:", bin(mode
))
1228 offs
= 2 if etype
== 'EXTRA2' else 3 # 2 or 3 bits
1229 for idx
, sv_extra
in extras
.items():
1234 srcdest
, idx
, duplicate
= idx
1235 start
= (10+idx
*offs
)
1236 end
= start
+ offs
-1
1237 log(" extra%d %2d-%2d:" % (idx
, start
, end
),
1240 log(" smask 16-17:", bin(smask
))
1243 # update prefix PO and ID (aka PID)
1244 svp64_prefix
.po
= 0x1
1245 svp64_prefix
.id = 0b11
1247 # fiinally yield the svp64 prefix and the thingy. v3.0b opcode
1248 rc
= '.' if rc_mode
else ''
1249 yield ".long 0x%08x" % int(svp64_prefix
)
1250 log(v30b_op
, v30b_newfields
)
1251 # argh, sv.fmadds etc. need to be done manually
1252 if v30b_op
== 'ffmadds':
1253 opcode
= 59 << (32-6) # bits 0..6 (MSB0)
1254 opcode |
= int(v30b_newfields
[0]) << (32-11) # FRT
1255 opcode |
= int(v30b_newfields
[1]) << (32-16) # FRA
1256 opcode |
= int(v30b_newfields
[2]) << (32-21) # FRB
1257 opcode |
= int(v30b_newfields
[3]) << (32-26) # FRC
1258 opcode |
= 0b00101 << (32-31) # bits 26-30
1260 opcode |
= 1 # Rc, bit 31.
1261 yield ".long 0x%x" % opcode
1262 # argh, sv.fdmadds need to be done manually
1263 elif v30b_op
== 'fdmadds':
1264 opcode
= 59 << (32-6) # bits 0..6 (MSB0)
1265 opcode |
= int(v30b_newfields
[0]) << (32-11) # FRT
1266 opcode |
= int(v30b_newfields
[1]) << (32-16) # FRA
1267 opcode |
= int(v30b_newfields
[2]) << (32-21) # FRB
1268 opcode |
= int(v30b_newfields
[3]) << (32-26) # FRC
1269 opcode |
= 0b01111 << (32-31) # bits 26-30
1271 opcode |
= 1 # Rc, bit 31.
1272 yield ".long 0x%x" % opcode
1273 # argh, sv.ffadds etc. need to be done manually
1274 elif v30b_op
== 'ffadds':
1275 opcode
= 59 << (32-6) # bits 0..6 (MSB0)
1276 opcode |
= int(v30b_newfields
[0]) << (32-11) # FRT
1277 opcode |
= int(v30b_newfields
[1]) << (32-16) # FRA
1278 opcode |
= int(v30b_newfields
[2]) << (32-21) # FRB
1279 opcode |
= 0b01101 << (32-31) # bits 26-30
1281 opcode |
= 1 # Rc, bit 31.
1282 yield ".long 0x%x" % opcode
1283 # sigh have to do svstep here manually for now...
1284 elif v30b_op
in ["svstep", "svstep."]:
1285 insn
= 22 << (31-5) # opcode 22, bits 0-5
1286 insn |
= int(v30b_newfields
[0]) << (31-10) # RT , bits 6-10
1287 insn |
= int(v30b_newfields
[1]) << (31-22) # SVi , bits 16-22
1288 insn |
= int(v30b_newfields
[2]) << (31-25) # vf , bit 25
1289 insn |
= 0b10011 << (31-30) # XO , bits 26..30
1290 if opcode
== 'svstep.':
1291 insn |
= 1 << (31-31) # Rc=1 , bit 31
1292 log("svstep", bin(insn
))
1293 yield ".long 0x%x" % insn
1294 # argh, sv.fcoss etc. need to be done manually
1295 elif v30b_op
in ["fcoss", "fcoss."]:
1296 insn
= 59 << (31-5) # opcode 59, bits 0-5
1297 insn |
= int(v30b_newfields
[0]) << (31-10) # RT , bits 6-10
1298 insn |
= int(v30b_newfields
[1]) << (31-20) # RB , bits 16-20
1299 insn |
= 0b1000101110 << (31-30) # XO , bits 21..30
1300 if opcode
== 'fcoss.':
1301 insn |
= 1 << (31-31) # Rc=1 , bit 31
1302 log("fcoss", bin(insn
))
1303 yield ".long 0x%x" % insn
1305 if not v30b_op
.endswith('.'):
1307 yield "%s %s" % (v30b_op
, ", ".join(v30b_newfields
))
1308 log("new v3.0B fields", v30b_op
, v30b_newfields
)
1310 def translate(self
, lst
):
1312 yield from self
.translate_one(insn
)
1315 def macro_subst(macros
, txt
):
1317 log("subst", txt
, macros
)
1320 for macro
, value
in macros
.items():
1323 replaced
= txt
.replace(macro
, value
)
1324 log("macro", txt
, "replaced", replaced
, macro
, value
)
1327 toreplace
= '%s.s' % macro
1328 if toreplace
== txt
:
1330 replaced
= txt
.replace(toreplace
, "%s.s" % value
)
1331 log("macro", txt
, "replaced", replaced
, toreplace
, value
)
1334 toreplace
= '%s.v' % macro
1335 if toreplace
== txt
:
1337 replaced
= txt
.replace(toreplace
, "%s.v" % value
)
1338 log("macro", txt
, "replaced", replaced
, toreplace
, value
)
1341 toreplace
= '(%s)' % macro
1342 if toreplace
in txt
:
1344 replaced
= txt
.replace(toreplace
, '(%s)' % value
)
1345 log("macro", txt
, "replaced", replaced
, toreplace
, value
)
1348 log(" processed", txt
)
1356 if not line
[0].isspace():
1364 # get an input file and an output file
1368 outfile
= sys
.stdout
1369 # read the whole lot in advance in case of in-place
1370 lines
= list(infile
.readlines())
1371 elif len(args
) != 2:
1372 print("pysvp64asm [infile | -] [outfile | -]", file=sys
.stderr
)
1378 infile
= open(args
[0], "r")
1379 # read the whole lot in advance in case of in-place overwrite
1380 lines
= list(infile
.readlines())
1383 outfile
= sys
.stdout
1385 outfile
= open(args
[1], "w")
1387 # read the line, look for custom insn, process it
1388 macros
= {} # macros which start ".set"
1391 op
= line
.split("#")[0].strip()
1393 if op
.startswith(".set"):
1394 macro
= op
[4:].split(",")
1395 (macro
, value
) = map(str.strip
, macro
)
1396 macros
[macro
] = value
1397 if not op
.startswith('sv.') and not op
.startswith(tuple(CUSTOM_INSNS
)):
1401 (ws
, line
) = get_ws(line
)
1402 lst
= isa
.translate_one(op
, macros
)
1403 lst
= '; '.join(lst
)
1404 outfile
.write("%s%s # %s\n" % (ws
, lst
, op
))
1407 if __name__
== '__main__':
1408 lst
= ['slw 3, 1, 4',
1411 'sv.cmpi 5, 1, 3, 2',
1413 'sv.isel 64.v, 3, 2, 65.v',
1414 'sv.setb/dm=r3/sm=1<<r3 5, 31',
1415 'sv.setb/m=r3 5, 31',
1416 'sv.setb/vec2 5, 31',
1417 'sv.setb/sw=8/ew=16 5, 31',
1418 'sv.extsw./ff=eq 5, 31',
1419 'sv.extsw./satu/sz/dz/sm=r3/dm=r3 5, 31',
1420 'sv.extsw./pr=eq 5.v, 31',
1421 'sv.add. 5.v, 2.v, 1.v',
1422 'sv.add./m=r3 5.v, 2.v, 1.v',
1425 'sv.stw 5.v, 4(1.v)',
1426 'sv.ld 5.v, 4(1.v)',
1427 'setvl. 2, 3, 4, 0, 1, 1',
1428 'sv.setvl. 2, 3, 4, 0, 1, 1',
1431 "sv.stfsu 0.v, 16(4.v)",
1434 "sv.stfsu/els 0.v, 16(4)",
1437 'sv.add./mr 5.v, 2.v, 1.v',
1439 macros
= {'win2': '50', 'win': '60'}
1441 'sv.addi win2.v, win.v, -1',
1442 'sv.add./mrr 5.v, 2.v, 1.v',
1443 #'sv.lhzsh 5.v, 11(9.v), 15',
1444 #'sv.lwzsh 5.v, 11(9.v), 15',
1445 'sv.ffmadds 6.v, 2.v, 4.v, 6.v',
1448 #'sv.fmadds 0.v, 8.v, 16.v, 4.v',
1449 #'sv.ffadds 0.v, 8.v, 4.v',
1450 'svremap 11, 0, 1, 2, 3, 2, 1',
1451 'svshape 8, 1, 1, 1, 0',
1452 'svshape 8, 1, 1, 1, 1',
1455 #'sv.lfssh 4.v, 11(8.v), 15',
1456 #'sv.lwzsh 4.v, 11(8.v), 15',
1457 #'sv.svstep. 2.v, 4, 0',
1458 #'sv.fcfids. 48.v, 64.v',
1459 'sv.fcoss. 80.v, 0.v',
1460 'sv.fcoss. 20.v, 0.v',
1463 'sv.bc/all 3,12,192',
1464 'sv.bclr/vsbi 3,81.v,192',
1465 'sv.ld 5.v, 4(1.v)',
1466 'sv.svstep. 2.v, 4, 0',
1477 'svindex 0,0,1,0,0,0,0',
1480 'sv.svstep./m=r3 2.v, 4, 0',
1481 'ternlogi 0,0,0,0x5',
1493 'sv.andi. *80, *80, 1',
1494 'sv.ffmadds. 6.v, 2.v, 4.v, 6.v', # incorrectly inserted 32-bit op
1495 'sv.ffmadds 6.v, 2.v, 4.v, 6.v', # correctly converted to .long
1497 isa
= SVP64Asm(lst
, macros
=macros
)
1498 log("list:\n", "\n\t".join(list(isa
)))
1499 # running svp64.py is designed to test hard-coded lists
1500 # (above) - which strictly speaking should all be unit tests.
1501 # if you need to actually do assembler translation at the
1502 # commandline use "pysvp64asm" - see setup.py
1503 # XXX NO. asm_process()