ton/crypto/fift/lib/Asm.fif

library TVM_Asm
// simple TVM Assembler
variable @atend
'nop @atend !
{ `normal eq? not abort"must be terminated by }>" } : @normal?
{ @atend @ 1 { @atend ! @normal? } does @atend ! } : @pushatend
{ @pushatend <b } : <{
{ @atend @ execute } : @endblk
{ `normal @endblk } : }>
{ }> b> } : }>c
{ }>c <s } : }>s
{ @atend @ 2 { @atend ! rot b> ref, swap @endblk } does @atend ! <b } : @|
{ @atend @ 3 { @atend ! 2swap rot execute } does @atend ! <b } : @doafter<{
{ over brembits <= } : @havebits
{ rot >= -rot <= and } : 2x<=
{ 2 pick brembitrefs 1- 2x<= } : @havebitrefs
{ @havebits not ' @| if } : @ensurebits
{ @havebitrefs not ' @| if } : @ensurebitrefs
{ rot over @ensurebits -rot u, } : @simpleuop
{ tuck sbitrefs @ensurebitrefs swap s, } : @addop
{ tuck bbitrefs @ensurebitrefs swap b+ } : @addopb
' @addopb : @inline
{ 1 ' @addop does create } : @Defop
{ 1 { <b swap s, swap 8 u, @addopb } does create } : @Defop(8u)
{ 1 { <b swap s, swap 8 i, @addopb } does create } : @Defop(8i)
{ 1 { <b swap s, swap 1- 8 u, @addopb } does create } : @Defop(8u+1)
{ 1 { <b swap s, swap 4 u, @addopb } does create } : @Defop(4u)
{ 1 { <b swap s, rot 4 u, swap 4 u, @addopb } does create } : @Defop(4u,4u)
{ 1 { <b swap s, swap ref, @addopb } does create } : @Defop(ref)
{ <b 0xef 8 u, swap 12 i, b> } : si()
// x mi ma -- ?
{ rot tuck >= -rot <= and } : @range
{ rot tuck < -rot > or } : @-range
{ @-range abort"Out of range" } : @rangechk
{ dup 0 < over 255 > or abort"Invalid stack register number" si() } : s()
{ si() constant } : @Sreg
-2 @Sreg s(-2)
-1 @Sreg s(-1)
0 @Sreg s0
1 @Sreg s1
2 @Sreg s2
3 @Sreg s3
4 @Sreg s4
5 @Sreg s5
6 @Sreg s6
7 @Sreg s7
8 @Sreg s8
9 @Sreg s9
10 @Sreg s10
11 @Sreg s11
12 @Sreg s12
13 @Sreg s13
14 @Sreg s14
15 @Sreg s15
{ dup 0 < over 7 > or abort"Invalid control register number" <b 0xcc 8 u, swap 4 u, b> } : c()
{ c() constant } : @Creg
0 @Creg c0
1 @Creg c1
2 @Creg c2
3 @Creg c3
4 @Creg c4
5 @Creg c5
7 @Creg c7
{ <s 8 u@+ swap 0xef <> abort"not a stack register" 12 i@+ s> } : @bigsridx
{ @bigsridx dup 16 >= over 0< or abort"stack register s0..s15 expected" } : @sridx
{ rot @bigsridx tuck < -rot tuck > rot or abort"stack register out of range" } : @sridxrange
{ swap @bigsridx + dup 16 >= over 0< or abort"stack register out of range" } : @sridx+
{ <s 8 u@+ 4 u@+ s> swap 0xcc <> over 7 > or over 6 = or abort"not a control register c0..c5 or c7" } : @cridx
{ <s 8 u@ 0xcc = } : @iscr?
{ <b swap s, 1 { swap @sridx 4 u, @addopb } does create } : @Defop(s)
{ <b swap s, 1 { rot @sridx 4 u, swap @sridx 4 u, @addopb } does create } : @Defop(s,s)
{ <b swap s, 1 { swap @cridx 4 u, @addopb } does create } : @Defop(c)
//
// stack manipulation primitives
// (simple stack primitives)
//
x{00} @Defop NOP
x{01} @Defop SWAP
x{0} @Defop(s) XCHG0
{ @bigsridx swap @bigsridx 2dup =
  { 2drop <b }
  { 2dup < { swap } if dup 0=
    { drop dup 16 <
      { <b x{0} s, swap 4 u, }
      { <b x{11} s, swap 8 u, }
      cond
    }
    { over 16 >=
      { tuck 16 >=
        { <b x{11} s, 2 pick 8 u, x{11} s, swap 8 u, x{11} s, swap 8 u, }
	{ <b x{0} s, 2 pick 4 u, x{11} s, swap 8 u, x{0} s, swap 4 u, } cond
      }
      { dup 1 =
        { drop <b x{1} s, swap 4 u, }
        { <b x{10} s, swap 4 u, swap 4 u, }
        cond
      } cond
    } cond
  } cond
  @addopb } : XCHG
x{ED4} @Defop(c) PUSHCTR
x{ED5} @Defop(c) POPCTR
{ dup @iscr?
  ' PUSHCTR
  { @bigsridx dup 16 <
    { <b x{2} s, swap 4 u, }
    { <b x{56} s, swap 8 u,
    } cond
  @addopb
  } cond
} : PUSH
x{20} @Defop DUP
x{21} @Defop OVER
{ dup @iscr?
  ' POPCTR
  { @bigsridx dup 16 <
    { <b x{3} s, swap 4 u, }
    { <b x{57} s, swap 8 u,
    } cond
  @addopb
  } cond
} : POP
x{30} @Defop DROP
x{31} @Defop NIP

// compound stack primitives
{ @sridx rot @sridx rot @sridx swap <b x{4} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : XCHG3
x{50} @Defop(s,s) XCHG2
x{51} @Defop(s,s) XCPU
{ <b x{52} s, rot @sridx 4 u, swap 1 @sridx+ 4 u, @addopb } : PUXC
x{53} @Defop(s,s) PUSH2
{ @sridx rot @sridx rot @sridx swap <b x{540} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : XCHG3_l
{ @sridx rot @sridx rot @sridx swap <b x{541} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : XC2PU
{ 1 @sridx+ rot @sridx rot @sridx swap <b x{542} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : XCPUXC
{ @sridx rot @sridx rot @sridx swap <b x{543} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : XCPU2
{ 1 @sridx+ rot @sridx rot 1 @sridx+ swap <b x{544} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : PUXC2
{ 1 @sridx+ rot @sridx rot 1 @sridx+ swap <b x{545} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : PUXCPU
{ 2 @sridx+ rot @sridx rot 1 @sridx+ swap <b x{546} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : PU2XC
{ @sridx rot @sridx rot @sridx swap <b x{547} s, swap 4 u, swap 4 u, swap 4 u, @addopb } : PUSH3
{ <b x{55} s, rot 1- 4 u, swap 1- 4 u, @addopb } : BLKSWAP
{ dup { 1 swap BLKSWAP } { drop } cond } : ROLL
{ dup { 1 BLKSWAP } { drop } cond } dup : -ROLL : ROLLREV
x{5513} dup @Defop 2ROT @Defop ROT2

// exotic stack primitives
x{58} @Defop ROT
x{59} dup @Defop -ROT @Defop ROTREV
x{5A} dup @Defop 2SWAP @Defop SWAP2
x{5B} dup @Defop 2DROP @Defop DROP2
x{5C} dup @Defop 2DUP @Defop DUP2
x{5D} dup @Defop 2OVER @Defop OVER2
{ <b x{5E} s, rot 2 - 4 u, swap 4 u, @addopb } : REVERSE
{ <b x{5F0} s, swap 4 u, @addopb } : BLKDROP
{ over 0= abort"first argument must be non-zero"
  <b x{5F} s, rot 4 u, swap 4 u, @addopb } : BLKPUSH
x{60} dup @Defop PICK @Defop PUSHX
x{61} @Defop ROLLX
x{62} dup @Defop -ROLLX @Defop ROLLREVX
x{63} @Defop BLKSWX
x{64} @Defop REVX
x{65} @Defop DROPX
x{66} @Defop TUCK
x{67} @Defop XCHGX
x{68} @Defop DEPTH
x{69} @Defop CHKDEPTH
x{6A} @Defop ONLYTOPX
x{6B} @Defop ONLYX

// null primitives
x{6D} dup @Defop NULL @Defop PUSHNULL
x{6E} @Defop ISNULL
// tuple primitives
x{6F0} @Defop(4u) TUPLE
x{6F00} @Defop NIL
x{6F01} @Defop SINGLE
x{6F02} dup @Defop PAIR @Defop CONS 
x{6F03} @Defop TRIPLE
x{6F1} @Defop(4u) INDEX
x{6F10} dup @Defop FIRST @Defop CAR
x{6F11} dup @Defop SECOND @Defop CDR
x{6F12} @Defop THIRD
x{6F2} @Defop(4u) UNTUPLE
x{6F21} @Defop UNSINGLE
x{6F22} dup @Defop UNPAIR @Defop UNCONS
x{6F23} @Defop UNTRIPLE
x{6F3} @Defop(4u) UNPACKFIRST
x{6F30} @Defop CHKTUPLE
x{6F4} @Defop(4u) EXPLODE
x{6F5} @Defop(4u) SETINDEX
x{6F50} @Defop SETFIRST
x{6F51} @Defop SETSECOND
x{6F52} @Defop SETTHIRD
x{6F6} @Defop(4u) INDEXQ
x{6F60} dup @Defop FIRSTQ @Defop CARQ
x{6F61} dup @Defop SECONDQ @Defop CDRQ
x{6F62} @Defop THIRDQ
x{6F7} @Defop(4u) SETINDEXQ
x{6F70} @Defop SETFIRSTQ
x{6F71} @Defop SETSECONDQ
x{6F72} @Defop SETTHIRDQ
x{6F80} @Defop TUPLEVAR
x{6F81} @Defop INDEXVAR
x{6F82} @Defop UNTUPLEVAR
x{6F83} @Defop UNPACKFIRSTVAR
x{6F84} @Defop EXPLODEVAR
x{6F85} @Defop SETINDEXVAR
x{6F86} @Defop INDEXVARQ
x{6F87} @Defop SETINDEXVARQ
x{6F88} @Defop TLEN
x{6F89} @Defop QTLEN
x{6F8A} @Defop ISTUPLE
x{6F8B} @Defop LAST
x{6F8C} dup @Defop TPUSH @Defop COMMA
x{6F8D} @Defop TPOP
x{6FA0} @Defop NULLSWAPIF
x{6FA1} @Defop NULLSWAPIFNOT
x{6FA2} @Defop NULLROTRIF
x{6FA3} @Defop NULLROTRIFNOT
{ <b x{6FB} s, rot 2 u, swap 2 u, @addopb } : INDEX2
x{6FB4} @Defop CADR
x{6FB5} @Defop CDDR
{ <b x{6FE_} s, 3 roll 2 u, rot 2 u, swap 2 u, @addopb } : INDEX3
x{6FD4} @Defop CADDR
x{6FD5} @Defop CDDDR

// integer constants
x{70} dup @Defop ZERO @Defop FALSE
x{71} @Defop ONE
x{72} @Defop TWO
x{7A} @Defop TEN
x{7F} @Defop TRUE
{ dup 10 <= over -5 >= and
  { 15 and <b x{7} s, swap 4 u, }
  { dup 8 fits
    { <b x{80} s, swap 8 i, }
    { dup 16 fits
      { <b x{81} s, swap 16 i, }
      { 11 { dup 259 > abort"integer too large" 8 + 2dup fits } until
        <b x{82} s, over 3 >> 2- 5 u, -rot i, 
      } cond
    } cond
  } cond
  @addopb } dup : PUSHINT : INT
{ <b x{83} s, swap 1- 8 u, @addopb } : PUSHPOW2
x{83FF} @Defop PUSHNAN
{ <b x{84} s, swap 1- 8 u, @addopb } : PUSHPOW2DEC
{ <b x{85} s, swap 1- 8 u, @addopb } : PUSHNEGPOW2
//
// other constants
x{88} @Defop(ref) PUSHREF
x{89} @Defop(ref) PUSHREFSLICE
x{8A} @Defop(ref) PUSHREFCONT
{ 1- dup 0< over 8 >= or abort"invalid slice padding"
  swap 1 1 u, 0 rot u, } : @scomplete
{ tuck sbitrefs swap 17 + swap @havebitrefs not
  { <b rot s, b> PUSHREFSLICE }
  { over sbitrefs 2dup 123 0 2x<=
    { drop tuck 4 + 3 >> swap x{8B} s, over 4 u, 3 roll s,
      -rot 3 << 4 + swap - @scomplete }
    { 2dup 1 >= swap 248 <= and
      { rot x{8C} s, swap 1- 2 u, over 7 + 3 >> tuck 5 u, 3 roll s,
        -rot 3 << 1 + swap - @scomplete }
      { rot x{8D} s, swap 3 u, over 2 + 3 >> tuck 7 u, 3 roll s,
        -rot 3 << 6 + swap - @scomplete
      } cond
    } cond
  } cond
} dup : PUSHSLICE : SLICE
{ tuck bbitrefs swap 16 + dup 7 and 3 -roll swap @havebitrefs
  not rot or
  { swap b> PUSHREFCONT }
  { over bbitrefs 2dup 120 0 2x<=
    { drop swap x{9} s, swap 3 >> 4 u, swap b+ }
    { rot x{8F_} s, swap 2 u, swap 3 >> 7 u, swap b+ } cond
  } cond
} dup : PUSHCONT : CONT
{ }> PUSHCONT } : }>CONT
{ { @normal? PUSHCONT } @doafter<{ } : CONT:<{

// arithmetic operations
{ 2 { rot dup 8 fits
      { nip <b rot s, swap 8 i, }
      { rot drop <b swap PUSHINT swap s, }
      cond @addopb
    } does create
} : @Defop(8i,alt)
x{A0} @Defop ADD
x{A1} @Defop SUB
x{A2} @Defop SUBR
x{A3} @Defop NEGATE
x{A4} @Defop INC
x{A5} @Defop DEC
x{A6} x{A0} @Defop(8i,alt) ADDCONST
{ negate ADDCONST } : SUBCONST
x{A7} x{A8} @Defop(8i,alt) MULCONST
' ADDCONST : ADDINT
' SUBCONST : SUBINT
' MULCONST : MULINT
x{A8} @Defop MUL
x{A904} @Defop DIV
x{A905} @Defop DIVR
x{A906} @Defop DIVC
x{A908} @Defop MOD
x{A90C} @Defop DIVMOD
x{A90D} @Defop DIVMODR
x{A90E} @Defop DIVMODC
x{A925} @Defop RSHIFTR
x{A935} @Defop(8u+1) RSHIFTR#
x{A938} @Defop(8u+1) MODPOW2#
x{A984} @Defop MULDIV
x{A985} @Defop MULDIVR
x{A98C} @Defop MULDIVMOD
x{A9C4} @Defop LSHIFTDIV
x{A9C5} @Defop LSHIFTDIVR
x{A9D4} @Defop(8u+1) LSHIFT#DIV
x{A9D5} @Defop(8u+1) LSHIFT#DIVR
x{A9E4} @Defop MULRSHIFT
x{A9E5} @Defop MULRSHIFTR
x{A9F4} @Defop(8u+1) MULRSHIFT#
x{A9F5} @Defop(8u+1) MULRSHIFTR#
x{AA} @Defop(8u+1) LSHIFT#
x{AB} @Defop(8u+1) RSHIFT#
x{AC} @Defop LSHIFT
x{AD} @Defop RSHIFT
x{AE} @Defop POW2
x{B0} @Defop AND
x{B1} @Defop OR
x{B2} @Defop XOR
x{B3} @Defop NOT
x{B4} @Defop(8u+1) FITS
x{B400} @Defop CHKBOOL
x{B5} @Defop(8u+1) UFITS
x{B500} @Defop CHKBIT
x{B600} @Defop FITSX
x{B601} @Defop UFITSX
x{B602} @Defop BITSIZE
x{B603} @Defop UBITSIZE
x{B608} @Defop MIN
x{B609} @Defop MAX
x{B60A} dup @Defop MINMAX @Defop INTSORT2
x{B60B} @Defop ABS
x{B7} @Defop QUIET
x{B7A0} @Defop QADD
x{B7A1} @Defop QSUB
x{B7A2} @Defop QSUBR
x{B7A3} @Defop QNEGATE
x{B7A4} @Defop QINC
x{B7A5} @Defop QDEC
x{B7A8} @Defop QMUL
x{B7A904} @Defop QDIV
x{B7A905} @Defop QDIVR
x{B7A906} @Defop QDIVC
x{B7A908} @Defop QMOD
x{B7A90C} @Defop QDIVMOD
x{B7A90D} @Defop QDIVMODR
x{B7A90E} @Defop QDIVMODC
x{B7A985} @Defop QMULDIVR
x{B7A98C} @Defop QMULDIVMOD
x{B7AC} @Defop QLSHIFT
x{B7AD} @Defop QRSHIFT
x{B7AE} @Defop QPOW2
x{B7B0} @Defop QAND
x{B7B1} @Defop QOR
x{B7B2} @Defop QXOR
x{B7B3} @Defop QNOT
x{B7B4} @Defop(8u+1) QFITS
x{B7B5} @Defop(8u+1) QUFITS
x{B7B600} @Defop QFITSX
x{B7B601} @Defop QUFITSX

// integer comparison
x{B8} @Defop SGN
x{B9} @Defop LESS
x{BA} @Defop EQUAL
x{BB} @Defop LEQ
x{BC} @Defop GREATER
x{BD} @Defop NEQ
x{BE} @Defop GEQ
x{BF} @Defop CMP
x{C0} x{BA} @Defop(8i,alt) EQINT
x{C000} @Defop ISZERO
x{C1} x{B9} @Defop(8i,alt) LESSINT
{ 1+ LESSINT } : LEQINT
x{C100} @Defop ISNEG
x{C101} @Defop ISNPOS
x{C2} x{BC} @Defop(8i,alt) GTINT
{ 1- GTINT } : GEQINT
x{C200} @Defop ISPOS
x{C2FF} @Defop ISNNEG
x{C3} x{BD} @Defop(8i,alt) NEQINT
x{C300} @Defop ISNZERO
x{C4} @Defop ISNAN
x{C5} @Defop CHKNAN

// other comparison
x{C700} @Defop SEMPTY
x{C701} @Defop SDEMPTY
x{C702} @Defop SREMPTY
x{C703} @Defop SDFIRST
x{C704} @Defop SDLEXCMP
x{C705} @Defop SDEQ
x{C708} @Defop SDPFX
x{C709} @Defop SDPFXREV
x{C70A} @Defop SDPPFX
x{C70B} @Defop SDPPFXREV
x{C70C} @Defop SDSFX
x{C70D} @Defop SDSFXREV
x{C70E} @Defop SDPSFX
x{C70F} @Defop SDPSFXREV
x{C710} @Defop SDCNTLEAD0
x{C711} @Defop SDCNTLEAD1
x{C712} @Defop SDCNTTRAIL0
x{C713} @Defop SDCNTTRAIL1

// cell serialization (Builder manipulation primitives)
x{C8} @Defop NEWC
x{C9} @Defop ENDC
x{CA} @Defop(8u+1) STI
x{CB} @Defop(8u+1) STU
x{CC} @Defop STREF
x{CD} dup @Defop STBREFR @Defop ENDCST
x{CE} @Defop STSLICE
x{CF00} @Defop STIX
x{CF01} @Defop STUX
x{CF02} @Defop STIXR
x{CF03} @Defop STUXR
x{CF04} @Defop STIXQ
x{CF05} @Defop STUXQ
x{CF06} @Defop STIXRQ
x{CF07} @Defop STUXRQ
x{CF08} @Defop(8u+1) STI_l
x{CF09} @Defop(8u+1) STU_l
x{CF0A} @Defop(8u+1) STIR
x{CF0B} @Defop(8u+1) STUR
x{CF0C} @Defop(8u+1) STIQ
x{CF0D} @Defop(8u+1) STUQ
x{CF0E} @Defop(8u+1) STIRQ
x{CF0F} @Defop(8u+1) STURQ
x{CF10} @Defop STREF_l
x{CF11} @Defop STBREF
x{CF12} @Defop STSLICE_l
x{CF13} @Defop STB
x{CF14} @Defop STREFR
x{CF15} @Defop STBREFR_l
x{CF16} @Defop STSLICER
x{CF17} dup @Defop STBR @Defop BCONCAT
x{CF18} @Defop STREFQ
x{CF19} @Defop STBREFQ
x{CF1A} @Defop STSLICEQ
x{CF1B} @Defop STBQ
x{CF1C} @Defop STREFRQ
x{CF1D} @Defop STBREFRQ
x{CF1E} @Defop STSLICERQ
x{CF1F} dup @Defop STBRQ @Defop BCONCATQ
x{CF20} @Defop(ref) STREFCONST
{ <b x{CF21} s, rot ref, swap ref, @addopb } : STREF2CONST
x{CF28} @Defop STILE4
x{CF29} @Defop STULE4
x{CF2A} @Defop STILE8
x{CF2B} @Defop STULE8
x{CF31} @Defop BBITS
x{CF32} @Defop BREFS
x{CF33} @Defop BBITREFS
x{CF35} @Defop BREMBITS
x{CF36} @Defop BREMREFS
x{CF37} @Defop BREMBITREFS
x{CF38} @Defop(8u+1) BCHKBITS#
x{CF39} @Defop BCHKBITS
x{CF3A} @Defop BCHKREFS
x{CF3B} @Defop BCHKBITREFS
x{CF3C} @Defop(8u+1) BCHKBITSQ#
x{CF3D} @Defop BCHKBITSQ
x{CF3E} @Defop BCHKREFSQ
x{CF3F} @Defop BCHKBITREFSQ
x{CF40} @Defop STZEROES
x{CF41} @Defop STONES
x{CF42} @Defop STSAME
{ tuck sbitrefs swap 15 + swap @havebitrefs not
  { swap PUSHSLICE STSLICER }
  { over sbitrefs 2dup 57 3 2x<=
    { rot x{CFC_} s, swap 2 u, over 6 + 3 >> tuck 3 u, 3 roll s,
      -rot 3 << 2 + swap - @scomplete }
    { 2drop swap PUSHSLICE STSLICER } cond
  } cond
} : STSLICECONST
x{CF81} @Defop STZERO
x{CF83} @Defop STONE
// cell deserialization (CellSlice primitives)
x{D0} @Defop CTOS
x{D1} @Defop ENDS
x{D2} @Defop(8u+1) LDI
x{D3} @Defop(8u+1) LDU
x{D4} @Defop LDREF
x{D5} @Defop LDREFRTOS
x{D6} @Defop(8u+1) LDSLICE
x{D700} @Defop LDIX
x{D701} @Defop LDUX
x{D702} @Defop PLDIX
x{D703} @Defop PLDUX
x{D704} @Defop LDIXQ
x{D705} @Defop LDUXQ
x{D706} @Defop PLDIXQ
x{D707} @Defop PLDUXQ
x{D708} @Defop(8u+1) LDI_l
x{D709} @Defop(8u+1) LDU_l
x{D70A} @Defop(8u+1) PLDI
x{D70B} @Defop(8u+1) PLDU
x{D70C} @Defop(8u+1) LDIQ
x{D70D} @Defop(8u+1) LDUQ
x{D70E} @Defop(8u+1) PLDIQ
x{D70F} @Defop(8u+1) PLDUQ
{ dup 31 and abort"argument must be a multiple of 32" 5 >> 1-
  <b x{D714_} s, swap 3 u, @addopb
} : PLDUZ
x{D718} @Defop LDSLICEX
x{D719} @Defop PLDSLICEX
x{D71A} @Defop LDSLICEXQ
x{D71B} @Defop PLDSLICEXQ
x{D71C} @Defop(8u+1) LDSLICE_l
x{D71D} @Defop(8u+1) PLDSLICE
x{D71E} @Defop(8u+1) LDSLICEQ
x{D71F} @Defop(8u+1) PLDSLICEQ
x{D720} @Defop SDCUTFIRST
x{D721} @Defop SDSKIPFIRST
x{D722} @Defop SDCUTLAST
x{D723} @Defop SDSKIPLAST
x{D724} @Defop SDSUBSTR
x{D726} @Defop SDBEGINSX
x{D727} @Defop SDBEGINSXQ
{ tuck sbits tuck 5 + 3 >> swap x{D72A_} s, over 7 u, 3 roll s,
  -rot 3 << 3 + swap - @scomplete } : SDBEGINS:imm
{ tuck sbitrefs abort"no references allowed in slice" dup 26 <=
  { drop <b rot SDBEGINS:imm @addopb }
  { @havebits
    { swap SDBEGINS:imm }
    { swap PUSHSLICE SDBEGINSX
    } cond
  } cond
} : SDBEGINS
{ tuck sbits tuck 5 + 3 >> swap x{D72E_} s, over 7 u, 3 roll s,
  -rot 3 << 3 + swap - @scomplete } : SDBEGINSQ:imm
{ tuck sbitrefs abort"no references allowed in slice" dup 26 <=
  { drop <b rot SDBEGINSQ:imm @addopb }
  { @havebits
    { swap SDBEGINSQ:imm }
    { swap PUSHSLICE SDBEGINSXQ
    } cond
  } cond
} : SDBEGINSQ
x{D730} @Defop SCUTFIRST
x{D731} @Defop SSKIPFIRST
x{D732} @Defop SCUTLAST
x{D733} @Defop SSKIPLAST
x{D734} @Defop SUBSLICE
x{D736} @Defop SPLIT
x{D737} @Defop SPLITQ
x{D741} @Defop SCHKBITS
x{D742} @Defop SCHKREFS
x{D743} @Defop SCHKBITREFS
x{D745} @Defop SCHKBITSQ
x{D746} @Defop SCHKREFSQ
x{D747} @Defop SCHKBITREFSQ
x{D748} @Defop PLDREFVAR
x{D749} @Defop SBITS
x{D74A} @Defop SREFS
x{D74B} @Defop SBITREFS
{ <b x{D74E_} s, swap 2 u, @addopb } : PLDREFIDX
x{D74C} @Defop PLDREF
x{D750} @Defop LDILE4
x{D751} @Defop LDULE4
x{D752} @Defop LDILE8
x{D753} @Defop LDULE8
x{D754} @Defop PLDILE4
x{D755} @Defop PLDULE4
x{D756} @Defop PLDILE8
x{D757} @Defop PLDULE8
x{D758} @Defop LDILE4Q
x{D759} @Defop LDULE4Q
x{D75A} @Defop LDILE8Q
x{D75B} @Defop LDULE8Q
x{D75C} @Defop PLDILE4Q
x{D75D} @Defop PLDULE4Q
x{D75E} @Defop PLDILE8Q
x{D75F} @Defop PLDULE8Q
x{D760} @Defop LDZEROES
x{D761} @Defop LDONES
x{D762} @Defop LDSAME
//
// continuation / flow control primitives
x{D8} dup @Defop EXECUTE @Defop CALLX
x{D9} @Defop JMPX
{ dup 1+
  { <b x{DA} s, rot 4 u, swap 4 u, }
  { drop <b x{DB0} s, swap 4 u,
  } cond @addopb
} : CALLXARGS
x{DB1} @Defop(4u) JMPXARGS
x{DB2} @Defop(4u) RETARGS
x{DB30} dup @Defop RET @Defop RETTRUE
x{DB31} dup @Defop RETALT @Defop RETFALSE
x{DB32} dup @Defop BRANCH @Defop RETBOOL
x{DB34} @Defop CALLCC
x{DB35} @Defop JMPXDATA
{ dup 1+ 0= { 16 + } if
  <b x{DB36} rot 4 u, swap 4 u, @addopb
} : CALLCCARGS
x{DB38} @Defop CALLXVARARGS
x{DB39} @Defop RETVARARGS
x{DB3A} @Defop JMPXVARARGS
x{DB3B} @Defop CALLCCVARARGS
x{DB3C} @Defop(ref) CALLREF
x{DB3D} @Defop(ref) JMPREF
x{DB3E} @Defop(ref) JMPREFDATA
x{DB3F} @Defop RETDATA
// conditional and iterated execution primitives
x{DC} @Defop IFRET
x{DD} @Defop IFNOTRET
x{DE} @Defop IF
{ }> PUSHCONT IF } : }>IF
x{DF} @Defop IFNOT
{ }> PUSHCONT IFNOT } : }>IFNOT
' IFNOTRET : IF:
' IFRET : IFNOT:
x{E0} @Defop IFJMP
{ }> PUSHCONT IFJMP } : }>IFJMP
{ { @normal? PUSHCONT IFJMP } @doafter<{ } : IFJMP:<{
x{E1} @Defop IFNOTJMP
{ }> PUSHCONT IFNOTJMP } : }>IFNOTJMP
{ { @normal? PUSHCONT IFNOTJMP } @doafter<{ } : IFNOTJMP:<{
x{E2} @Defop IFELSE
{ `else @endblk } : }>ELSE<{
{ `else: @endblk } : }>ELSE:
{ PUSHCONT { @normal? PUSHCONT IFELSE } @doafter<{ } : @doifelse
{ 1 { swap @normal? -rot PUSHCONT swap PUSHCONT IFELSE } does @doafter<{ } : @doifnotelse
{ 
  { dup `else eq? 
    { drop @doifelse }
    { dup `else: eq?
      { drop PUSHCONT IFJMP }
      { @normal? PUSHCONT IF
      } cond 
    } cond 
  } @doafter<{ 
} : IF:<{
{ 
  { dup `else eq? 
    { drop @doifnotelse }
    { dup `else: eq?
      { drop PUSHCONT IFNOTJMP }
      { @normal? PUSHCONT IFNOT
      } cond 
    } cond 
  } @doafter<{ 
} : IFNOT:<{
x{E300} @Defop(ref) IFREF
x{E301} @Defop(ref) IFNOTREF
x{E302} @Defop(ref) IFJMPREF
x{E303} @Defop(ref) IFNOTJMPREF
x{E304} @Defop CONDSEL
x{E305} @Defop CONDSELCHK
x{E308} @Defop IFRETALT
x{E309} @Defop IFNOTRETALT
{ <b x{E39_} swap 5 u, @addopb } : IFBITJMP
{ <b x{E3B_} swap 5 u, @addopb } : IFNBITJMP
{ <b x{E3D_} swap 5 u, swap ref, @addopb } : IFBITJMPREF
{ <b x{E3F_} swap 5 u, swap ref, @addopb } : IFNBITJMPREF
x{E4} @Defop REPEAT
{ }> PUSHCONT REPEAT } : }>REPEAT
{ { @normal? PUSHCONT REPEAT } @doafter<{ } : REPEAT:<{
x{E5} dup @Defop REPEATEND @Defop REPEAT:
x{E6} @Defop UNTIL
{ }> PUSHCONT UNTIL } : }>UNTIL
{ { @normal? PUSHCONT UNTIL } @doafter<{ } : UNTIL:<{
x{E7} dup @Defop UNTILEND @Defop UNTIL:
x{E8} @Defop WHILE
x{E9} @Defop WHILEEND
{ `do @endblk } : }>DO<{
{ `do: @endblk } : }>DO:
{ PUSHCONT { @normal? PUSHCONT WHILE } @doafter<{ } : @dowhile
{ 
  { dup `do eq? 
    { drop @dowhile } 
    { `do: eq? not abort"`}>DO<{` expected" PUSHCONT WHILEEND 
    } cond 
  } @doafter<{ 
} : WHILE:<{
x{EA} @Defop AGAIN
{ }> PUSHCONT AGAIN } : }>AGAIN
{ { @normal? PUSHCONT AGAIN } @doafter<{ } : AGAIN:<{
x{EB} dup @Defop AGAINEND @Defop AGAIN:
//
// continuation stack manipulation and continuation creation
//
{ <b x{EC} s, rot 4 u, swap dup 1+ { 16 + } ifnot 4 u, @addopb } : SETCONTARGS
{ 0 swap SETCONTARGS } : SETNUMARGS
x{ED0} @Defop(4u) RETURNARGS
x{ED10} @Defop RETURNVARARGS
x{ED11} @Defop SETCONTVARARGS
x{ED12} @Defop SETNUMVARARGS
x{ED1E} @Defop BLESS
x{ED1F} @Defop BLESSVARARGS
{ <b x{EE} s, rot 4 u, swap dup 1+ { 16 + } ifnot 4 u, @addopb } : BLESSARGS
{ 0 swap BLESSARGS } : BLESSNUMARGS
//
// control register and continuation savelist manipulation
// x{ED4} Defop(c) PUSHCTR
// x{ED5} Defop(c) POPCTR
{ c4 PUSHCTR } : PUSHROOT
{ c4 POPCTR } : POPROOT
x{ED6} dup @Defop(c) SETCONTCTR @Defop(c) SETCONT
x{ED7} @Defop(c) SETRETCTR 
x{ED8} @Defop(c) SETALTCTR 
x{ED9} dup @Defop(c) POPSAVE @Defop(c) POPCTRSAVE
x{EDA} dup @Defop(c) SAVE @Defop(c) SAVECTR
x{EDB} dup @Defop(c) SAVEALT @Defop(c) SAVEALTCTR
x{EDC} dup @Defop(c) SAVEBOTH @Defop(c) SAVEBOTHCTR
x{EDE0} @Defop PUSHCTRX
x{EDE1} @Defop POPCTRX
x{EDE2} @Defop SETCONTCTRX
x{EDF0} dup @Defop BOOLAND @Defop COMPOS
x{EDF1} dup @Defop BOOLOR @Defop COMPOSALT
x{EDF2} @Defop COMPOSBOTH
x{EDF3} @Defop ATEXIT
{ }> PUSHCONT ATEXIT } : }>ATEXIT
{ { @normal? PUSHCONT ATEXIT } @doafter<{ } : ATEXIT:<{
x{EDF4} @Defop ATEXITALT
{ }> PUSHCONT ATEXITALT } : }>ATEXITALT
{ { @normal? PUSHCONT ATEXITALT } @doafter<{ } : ATEXITALT:<{
x{EDF5} @Defop SETEXITALT
{ }> PUSHCONT SETEXITALT } : }>SETEXITALT
{ { @normal? PUSHCONT SETEXITALT } @doafter<{ } : SETEXITALT:<{
x{EDF6} @Defop THENRET
x{EDF7} @Defop THENRETALT
x{EDF8} @Defop INVERT
x{EDF9} @Defop BOOLEVAL
// x{EE} is BLESSARGS
//
// dictionary subroutine call/jump primitives
{ c3 PUSH EXECUTE } : CALLVAR
{ c3 PUSH JMPX } : JMPVAR
{ c3 PUSH } : PREPAREVAR
{ dup 14 ufits {
    dup 8 ufits {
      <b x{F0} s, swap 8 u, } {
      <b x{F12_} s, swap 14 u,
    } cond @addopb } {
    PUSHINT CALLVAR
  } cond
} dup : CALL : CALLDICT
{ dup 14 ufits
  { <b x{F16_} s, swap 14 u, @addopb }
  { PUSHINT JMPVAR } cond
} dup : JMP : JMPDICT
{ dup 14 ufits
  { <b x{F1A_} s, swap 14 u, @addopb }
  { PUSHINT c3 PREPAREVAR } cond
} dup : PREPARE : PREPAREDICT
//
// throwing and handling exceptions
{ dup 6 ufits
  { <b x{F22_} s, swap 6 u, }
  { <b x{F2C4_} s, swap 11 u,
  } cond
@addopb } : THROW
{ dup 6 ufits
  { <b x{F26_} s, swap 6 u, }
  { <b x{F2D4_} s, swap 11 u,
  } cond
@addopb } : THROWIF
{ dup 6 ufits
  { <b x{F2A_} s, swap 6 u, }
  { <b x{F2E4_} s, swap 11 u,
  } cond
@addopb } : THROWIFNOT
{ <b x{F2CC_} s, swap 11 u, @addopb } : THROWARG
{ <b x{F2DC_} s, swap 11 u, @addopb } : THROWARGIF
{ <b x{F2EC_} s, swap 11 u, @addopb } : THROWARGIFNOT
x{F2F0} @Defop THROWANY
x{F2F1} @Defop THROWARGANY
x{F2F2} @Defop THROWANYIF
x{F2F3} @Defop THROWARGANYIF
x{F2F4} @Defop THROWANYIFNOT
x{F2F5} @Defop THROWARGANYIFNOT
x{F2FF} @Defop TRY
x{F3} @Defop(4u,4u) TRYARGS
{ `catch @endblk } : }>CATCH<{
{ PUSHCONT { @normal? PUSHCONT TRY } @doafter<{ } : @trycatch
{ 
  { `catch eq? not abort"`}>CATCH<{` expected" @trycatch
  } @doafter<{ 
} : TRY:<{
//
// dictionary manipulation
' NULL : NEWDICT
' ISNULL : DICTEMPTY
' STSLICE : STDICTS
x{F400} dup @Defop STDICT @Defop STOPTREF
x{F401} dup @Defop SKIPDICT @Defop SKIPOPTREF
x{F402} @Defop LDDICTS
x{F403} @Defop PLDDICTS
x{F404} dup @Defop LDDICT @Defop LDOPTREF
x{F405} dup @Defop PLDDICT @Defop PLDOPTREF
x{F406} @Defop LDDICTQ
x{F407} @Defop PLDDICTQ

x{F40A} @Defop DICTGET
x{F40B} @Defop DICTGETREF
x{F40C} @Defop DICTIGET
x{F40D} @Defop DICTIGETREF
x{F40E} @Defop DICTUGET
x{F40F} @Defop DICTUGETREF

x{F412} @Defop DICTSET
x{F413} @Defop DICTSETREF
x{F414} @Defop DICTISET
x{F415} @Defop DICTISETREF
x{F416} @Defop DICTUSET
x{F417} @Defop DICTUSETREF
x{F41A} @Defop DICTSETGET
x{F41B} @Defop DICTSETGETREF
x{F41C} @Defop DICTISETGET
x{F41D} @Defop DICTISETGETREF
x{F41E} @Defop DICTUSETGET
x{F41F} @Defop DICTUSETGETREF

x{F422} @Defop DICTREPLACE
x{F423} @Defop DICTREPLACEREF
x{F424} @Defop DICTIREPLACE
x{F425} @Defop DICTIREPLACEREF
x{F426} @Defop DICTUREPLACE
x{F427} @Defop DICTUREPLACEREF
x{F42A} @Defop DICTREPLACEGET
x{F42B} @Defop DICTREPLACEGETREF
x{F42C} @Defop DICTIREPLACEGET
x{F42D} @Defop DICTIREPLACEGETREF
x{F42E} @Defop DICTUREPLACEGET
x{F42F} @Defop DICTUREPLACEGETREF

x{F432} @Defop DICTADD
x{F433} @Defop DICTADDREF
x{F434} @Defop DICTIADD
x{F435} @Defop DICTIADDREF
x{F436} @Defop DICTUADD
x{F437} @Defop DICTUADDREF
x{F43A} @Defop DICTADDGET
x{F43B} @Defop DICTADDGETREF
x{F43C} @Defop DICTIADDGET
x{F43D} @Defop DICTIADDGETREF
x{F43E} @Defop DICTUADDGET
x{F43F} @Defop DICTUADDGETREF

x{F441} @Defop DICTSETB
x{F442} @Defop DICTISETB
x{F443} @Defop DICTUSETB
x{F445} @Defop DICTSETGETB
x{F446} @Defop DICTISETGETB
x{F447} @Defop DICTUSETGETB

x{F449} @Defop DICTREPLACEB
x{F44A} @Defop DICTIREPLACEB
x{F44B} @Defop DICTUREPLACEB
x{F44D} @Defop DICTREPLACEGETB
x{F44E} @Defop DICTIREPLACEGETB
x{F44F} @Defop DICTUREPLACEGETB

x{F451} @Defop DICTADDB
x{F452} @Defop DICTIADDB
x{F453} @Defop DICTUADDB
x{F455} @Defop DICTADDGETB
x{F456} @Defop DICTIADDGETB
x{F457} @Defop DICTUADDGETB

x{F459} @Defop DICTDEL
x{F45A} @Defop DICTIDEL
x{F45B} @Defop DICTUDEL

x{F462} @Defop DICTDELGET
x{F463} @Defop DICTDELGETREF
x{F464} @Defop DICTIDELGET
x{F465} @Defop DICTIDELGETREF
x{F466} @Defop DICTUDELGET
x{F467} @Defop DICTUDELGETREF

x{F469} @Defop DICTGETOPTREF
x{F46A} @Defop DICTIGETOPTREF
x{F46B} @Defop DICTUGETOPTREF
x{F46D} @Defop DICTSETGETOPTREF
x{F46E} @Defop DICTISETGETOPTREF
x{F46F} @Defop DICTUSETGETOPTREF

x{F470} @Defop PFXDICTSET
x{F471} @Defop PFXDICTREPLACE
x{F472} @Defop PFXDICTADD
x{F473} @Defop PFXDICTDEL

x{F474} @Defop DICTGETNEXT
x{F475} @Defop DICTGETNEXTEQ
x{F476} @Defop DICTGETPREV
x{F477} @Defop DICTGETPREVEQ
x{F478} @Defop DICTIGETNEXT
x{F479} @Defop DICTIGETNEXTEQ
x{F47A} @Defop DICTIGETPREV
x{F47B} @Defop DICTIGETPREVEQ
x{F47C} @Defop DICTUGETNEXT
x{F47D} @Defop DICTUGETNEXTEQ
x{F47E} @Defop DICTUGETPREV
x{F47F} @Defop DICTUGETPREVEQ

x{F482} @Defop DICTMIN
x{F483} @Defop DICTMINREF
x{F484} @Defop DICTIMIN
x{F485} @Defop DICTIMINREF
x{F486} @Defop DICTUMIN
x{F487} @Defop DICTUMINREF
x{F48A} @Defop DICTMAX
x{F48B} @Defop DICTMAXREF
x{F48C} @Defop DICTIMAX
x{F48D} @Defop DICTIMAXREF
x{F48E} @Defop DICTUMAX
x{F48F} @Defop DICTUMAXREF

x{F492} @Defop DICTREMMIN
x{F493} @Defop DICTREMMINREF
x{F494} @Defop DICTIREMMIN
x{F495} @Defop DICTIREMMINREF
x{F496} @Defop DICTUREMMIN
x{F497} @Defop DICTUREMMINREF
x{F49A} @Defop DICTREMMAX
x{F49B} @Defop DICTREMMAXREF
x{F49C} @Defop DICTIREMMAX
x{F49D} @Defop DICTIREMMAXREF
x{F49E} @Defop DICTUREMMAX
x{F49F} @Defop DICTUREMMAXREF

x{F4A0} @Defop DICTIGETJMP
x{F4A1} @Defop DICTUGETJMP
x{F4A2} @Defop DICTIGETEXEC
x{F4A3} @Defop DICTUGETEXEC
{ dup sbitrefs tuck 1 > swap 1 <> or abort"not a dictionary" swap 1 u@ over <> abort"not a dictionary" } : @chkdicts
{ dup null? tuck { <s } ifnot drop not } : @chkdict 
{ over @chkdict
  { swap <b x{F4A6_} s, swap ref, swap 10 u, @addopb }
  { nip swap NEWDICT swap PUSHINT }
  cond
} : DICTPUSHCONST
x{F4A8} @Defop PFXDICTGETQ
x{F4A9} @Defop PFXDICTGET
x{F4AA} @Defop PFXDICTGETJMP
x{F4AB} @Defop PFXDICTGETEXEC
{ over @chkdict
  { swap <b x{F4AE_} s, swap ref, swap 10 u, @addopb
  } if
} dup : PFXDICTCONSTGETJMP : PFXDICTSWITCH

x{F4B1} @Defop SUBDICTGET
x{F4B2} @Defop SUBDICTIGET
x{F4B3} @Defop SUBDICTUGET
x{F4B5} @Defop SUBDICTRPGET
x{F4B6} @Defop SUBDICTIRPGET
x{F4B7} @Defop SUBDICTURPGET

//
// blockchain-specific primitives

x{F800} @Defop ACCEPT
x{F801} @Defop SETGASLIMIT

x{F82} @Defop(4u) GETPARAM
x{F823} @Defop NOW
x{F824} @Defop BLOCKLT
x{F825} @Defop LTIME
x{F828} @Defop MYADDR
x{F829} @Defop CONFIGROOT
x{F830} @Defop CONFIGDICT
x{F832} @Defop CONFIGPARAM
x{F833} @Defop CONFIGOPTPARAM

x{F840} @Defop GETGLOBVAR
{ dup 1 31 @rangechk <b x{F85_} s, swap 5 u, @addopb } : GETGLOB
x{F860} @Defop SETGLOBVAR
{ dup 1 31 @rangechk <b x{F87_} s, swap 5 u, @addopb } : SETGLOB

x{F900} @Defop HASHCU
x{F901} @Defop HASHSU
x{F902} @Defop SHA256U
x{F910} @Defop CHKSIGNU
x{F911} @Defop CHKSIGNS

x{FA00} dup @Defop LDGRAMS @Defop LDVARUINT16
x{FA01} @Defop LDVARINT16
x{FA02} dup @Defop STGRAMS @Defop STVARUINT16
x{FA03} @Defop STVARINT16

x{FA40} @Defop LDMSGADDR
x{FA41} @Defop LDMSGADDRQ
x{FA42} @Defop PARSEMSGADDR
x{FA43} @Defop PARSEMSGADDRQ
x{FA44} @Defop REWRITESTDADDR
x{FA45} @Defop REWRITESTDADDRQ
x{FA46} @Defop REWRITEVARADDR
x{FA47} @Defop REWRITEVARADDRQ

x{FB00} @Defop SENDRAWMSG
x{FB02} @Defop RAWRESERVE
x{FB03} @Defop RAWRESERVEX
x{FB04} @Defop SETCODE

//
// debug primitives

{ dup 0 239 @-range abort"debug selector out of range"
  <b x{FE} s, swap 8 u, @addopb
} : DEBUG
{ dup $len 1- <b x{FEF} s, swap 4 u, swap $, @addopb
} : DEBUGSTR
{ over $len <b x{FEF} s, swap 4 u, swap 8 u, swap $, @addopb
} : DEBUGSTRI

x{FE00} @Defop DUMPSTK
{ 1 15 @rangechk <b x{FE0} s, swap 4 u, @addopb
} : DUMPSTKTOP
x{FE10} @Defop HEXDUMP
x{FE11} @Defop HEXPRINT
x{FE12} @Defop BINDUMP
x{FE13} @Defop BINPRINT
x{FE14} @Defop STRDUMP
x{FE15} @Defop STRPRINT
x{FE1E} @Defop DEBUGOFF
x{FE1F} @Defop DEBUGON
x{FE2} @Defop(s) DUMP
x{FE3} @Defop(s) PRINT
' DEBUGSTR : DUMPTOSFMT
{ 0 DEBUGSTRI } : LOGSTR
{ 1 DEBUGSTRI } : PRINTSTR
x{FEF000} @Defop LOGFLUSH

//
// codepage primitives
x{FF00} @Defop SETCP0
x{FFF0} @Defop SETCPX
{ dup -14 239 @-range abort"codepage out of range"
  255 and <b x{FF} s, swap 8 u, @addopb
} : SETCP

//
// provisions for defining programs consisting of several mutually-recursive procedures
//
variable @proccnt
variable @proclist
19 constant @procdictkeylen
{ @proclist @ cons @proclist ! } : @proclistadd
{ dup @procdictkeylen fits not abort"procedure index out of range"
  1 'nop does swap dup @proclistadd 0 (create)
} : @declproc
{ @proccnt @ 1+ dup @proccnt ! @declproc } : @newproc
{ 0 =: main  @proclist null!  @proccnt 0!
  { bl word @newproc } : NEWPROC
  { bl word dup (def?) ' drop ' @newproc cond } : DECLPROC
  { bl word dup find
    { nip execute <> abort"method redefined with different id" }
    { swap @declproc }
  cond } : DECLMETHOD
  "main" @proclistadd
  dictnew
} : PROGRAM{
{ dup sbits 1000 > { s>c <b swap ref, b> <s } if } : @adj-long-proc
{ // d i s
  @adj-long-proc swap rot @procdictkeylen idict!+ not abort"cannot define procedure, redefined?"
} : PROC
{ 2dup swap @procdictkeylen idict@ abort"procedure already defined"
  1 { -rot @normal? b> <s PROC } does @doafter<{
} : PROC:<{
{ 0 swap @procdictkeylen idict@ not abort"`main` procedure not defined" drop
} : @chkmaindef
{ dup @chkmaindef
  @proclist @ { dup null? not } {
    uncons swap dup find not
    { +": undefined procedure name in list" abort } if
    execute 3 pick @procdictkeylen idict@ not
    { +": procedure declared but left undefined" abort } if
    drop (forget)
  } while
  drop @proclist null! @proccnt 0!
} : }END
forget @proclist  forget @proccnt
{ }END <{ SETCP0 swap @procdictkeylen DICTPUSHCONST DICTIGETJMP 11 THROWARG }> } : }END>
{ }END> b> } : }END>c
{ }END>c <s } : }END>s

0 constant recv_internal
-1 constant recv_external
-2 constant run_ticktock
-3 constant split_prepare
-4 constant split_install

// ( c -- )   add vm library for later use with runvmcode
{ <b over ref, b> <s swap hash vmlibs @ 256 udict! not abort"cannot add library" vmlibs ! } : add-lib
// ( x -- c ) make library reference cell
{ <b 2 8 u, swap 256 u, b>spec } : hash>libref
// ( c -- c' )
{ hash hash>libref } : >libref