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https://github.com/dschmenk/PLASMA.git
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I think thic CREATE works properly
This commit is contained in:
David Schmenk
parent
3455286a48
commit
965ccecf2a
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@ -40,7 +40,7 @@ predef _branch_#0, _0branch_(a)#0, _if_#0, _else_#0, _then_#0
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predef _begin_#0, _again_#0, _until_#0, _while_#0, _repeat_#0
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predef _case_#0, _of_#0, _endof_#0, _endcase_#0, _literal_(a)#0
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predef _do_#0, _doloop_#0, _doplusloop_(a)#0, _plusloop_#0, _loop_#0, _leave_#0, _j_#1
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predef _buildcreate_#0, _builds_#0, _dodoes_#0, _filldoes_#0, _does_#0
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predef _create_#0, _itcdoes_(a)#0, _does_#0
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predef pfillw(a)#0, pfillb(a)#0, _colon_#0, _semi_#0
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predef _tors_(a)#0, _fromrs_#1, _toprs_#1, _execute_(a)#0, _lookup_#1
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predef _cmove_(a,b,c)#0, _move_(a,b,c)#0, _fill_(a,b,c)#0, _plasma_(a)#0
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@ -332,24 +332,20 @@ byte = 0
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word = @d_repeat, @_forget_
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// CREATE
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char d_create = "CREATE"
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byte = imm_flag
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word = @d_forget, @_buildcreate_
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byte = 0
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word = @d_forget, @_create_
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// BUILDS
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char d_builds = "<BUILDS"
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byte = imm_flag
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word = @d_create, @_builds_
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// FILL DOES COMPILE TIME
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char d_filldoes = "(FILLDOES)"
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byte = 0
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word = @d_create, @_create_
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// RECREATE/DOES COMPILE TIME
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char d_createdoes = "(CREATEDOES)"
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byte = componly_flag
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word = @d_builds, @_filldoes_
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// DO DOES RUN TIME
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char d_dodoes = "(DODOES)"
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byte = componly_flag
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word = @d_filldoes, @_dodoes_
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word = @d_builds, @_itcdoes_
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// DOES
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char d_does = "DOES>"
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byte = imm_flag
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word = @d_dodoes, @_does_
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word = @d_createdoes, @_does_
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// COMMA
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char d_comma = ","
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byte = 0
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@ -1042,36 +1038,6 @@ end
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def _fill_(a,b,c)#0
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memset(a, c | (c << 8), b)
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end
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def _create_#0
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word bldptr, plist, namechars, namelen
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if state & comp_flag
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puts(" CREATE already compiling\n")
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_abort_
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fin
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namechars, namelen = nextword(' ')
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plist = vlist
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vlist = heapmark
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^vlist = namelen
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bldptr = vlist + 1
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while namelen
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^bldptr = ^namechars
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bldptr++
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namechars++
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namelen--
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loop
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state = state | comp_mode
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^bldptr = state & comp_itc_flag ?? itc_flag :: 0 // Flags
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bldptr++
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*bldptr = plist; // Link ptr
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bldptr = bldptr + 2
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*bldptr = bldptr + 2; // Code ptr linked to PFA
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heapalloc(bldptr - vlist + 2)
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end
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def _buildcreate_#0
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_create_
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pfillw(0) // Allocate space for LFA
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end
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def stodci(str, dci)
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byte len, c
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@ -1099,89 +1065,115 @@ def _lookup_#1
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^symname = symlen
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return cmdsys:lookupsym(stodci(symname, @dci))
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end
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def newdict#0
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word bldptr, plist, namechars, namelen
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namechars, namelen = nextword(' ')
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plist = vlist
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vlist = heapmark
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^vlist = namelen
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bldptr = vlist + 1
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while namelen
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^bldptr = ^namechars
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bldptr++
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namechars++
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namelen--
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loop
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^bldptr = 0 // Flags
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bldptr++
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*bldptr = plist; // Link ptr
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bldptr = bldptr + 2
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*bldptr = bldptr + 2 b// Point CFA to PFA
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heapalloc(bldptr - vlist + 2)
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end
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def _plasma_(a)#0
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_create_
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^(_ffa_(vlist)) = 0 // Always compiled
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*(_cfa_(vlist)) = a // Code address
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state = state & ~comp_flag
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newdict
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*(_cfa_(vlist)) = a // PLASMA code address
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end
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def _var_(a)#0
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_create_
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^(_ffa_(vlist)) = 0 // Always compiled
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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pfillw(heapmark + 3)
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pfillb($5C) // RET
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pfillw(a) // Variable storage
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pfillb($2C) // CONSTANT WORD
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state = state & ~comp_flag
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end
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def _const_(a)#0
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_create_
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^(_ffa_(vlist)) = 0 // Always compiled
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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pfillb($2C) // CONSTANT WORD
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pfillw(a)
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pfillb($5C) // RET
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state = state & ~comp_flag
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end
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def _docolon_#0
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execwords(W + 2) // Exec PFA
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end
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def _colon_#0
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_create_
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if state & comp_itc_flag
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*(_cfa_(vlist)) = @_docolon_
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else // comp_pbc_flag
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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fin
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end
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def _compbuilds_#0
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newdict
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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pfillb($2C) // CONSTANT WORD
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pfillw(heapmark + 6) // Pointer to PFA storage
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pfillb($54) // CALL
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pfillw(0) // Filled in later during _compdoes_
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pfillw(heapmark + 3) // Poiner to variable in PFA
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pfillb($5C) // RET
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pfillw(a) // Variable storage
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end
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def _const_(a)#0
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newdict
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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pfillb($2C) // CONSTANT WORD
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pfillw(a)
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pfillb($5C) // RET
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end
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def _builds_#0
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if state & comp_itc_flag
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pfillw(@d_create)
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else // comp_pbc_flag
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pfillb($54) // CALL
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pfillw(@_create_)
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pfillb($54) // CALL
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pfillw(@_compbuilds_)
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fin
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def _create_#0
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newdict
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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pfillb($2C) // CONSTANT WORD
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pfillw(heapmark + 6) // Pointer to rest of PFA
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pfillb($5C) // RET
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// Reserve following in case of DOES>
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pfillw(0) // reserved word for DOES>
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pfillb(0) // Reserved byte for DOES>
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//
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// 10 bytes after PFA, data follows...
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//
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end
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def _dodoes_#0
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(@push)(W + 4)#0 // Pointer to PFA storage
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(@push)(W + 12)#0 // Pointer to PFA storage
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execwords(*(W + 2)) // Exec PFA ptr
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end
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def _filldoes_#0
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*(_cfa_(vlist)) = @_dodoes_
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*(_pfa_(vlist)) = IIP + 2
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state = state & ~comp_flag
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def _createdoes_(a)#0
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if state & comp_itc_flag
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//
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// Overwrite CREATE as ITC words
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//
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^(_ffa_(vlist)) = itc_flag
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*(_cfa_(vlist)) = @_dodoes_
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*(_pfa_(vlist)) = a // Fill in DOES code address
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else // comp_pbc_flag
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//
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// Rewrite the end of CREATE
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//
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^(_pfa_(vlist) + 6) = $54 // CALL DOES> directly
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*(_pfa_(vlist) + 7) = a
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^(_pfa_(vlist) + 9) = $5C // RET
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fin
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state = state & ~comp_flag
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end
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def _compdoes_(does)#0
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*(_pfa_(vlist) + 7) = does // Fill in DOES code address
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state = state & ~comp_flag
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def _itcdoes_(a)#0
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//
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// Overwrite CREATE as ITC words
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//
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^(_ffa_(vlist)) = itc_flag
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*(_cfa_(vlist)) = @_dodoes_
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*(_pfa_(vlist)) = a // Fill in DOES code address
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end
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def _pbcdoes_(a)#0
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//
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// Rewrite the end of CREATE
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//
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^(_pfa_(vlist) + 6) = $54 // CALL DOES> directly
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*(_pfa_(vlist) + 7) = a
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^(_pfa_(vlist) + 9) = $5C // RET
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end
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def _does_#0
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if state & comp_itc_flag
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pfillw(@d_filldoes)
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pfillw(0)
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else // comp_pbc_flag
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pfillb($2C) // CONSTANT WORD
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pfillw(@d_lit)
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pfillw(heapmark + 6) // Pointer to DOES code
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pfillb($54) // CALL
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pfillw(@_compdoes_) // Fills in code address reserved in _compbuilds_
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pfillb($5C) // RET
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// End of BUILDS, beginning of DOES code
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(@d_createdoes)
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pfillw(0)
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// End of <BUILDS, beginning of DOES>
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else // comp_pbc_flag
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pfillb($2C) // CONSTANT WORD
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pfillw(heapmark + 6) // Pointer to DOES code
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pfillb($54) // CALL
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pfillw(@_pbcdoes_) // Fills in code address reserved in _compbuilds_
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pfillb($5C) // RET
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// End of BUILDS, beginning of DOES> code
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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fin
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end
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@ -1194,16 +1186,30 @@ def _literal_(a)#0
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if a >= 0 and a <= 15
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pfillb(a << 1) // CONSTANT NIBBLE
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elsif a == -1
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pfillb($20) // CONSTANT MINUS_ONE
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pfillb($20) // CONSTANT MINUS_ONE
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else
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pfillb($2C) // CONSTANT WORD
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pfillw(a) // Poke literal value into dictionary
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pfillb($2C) // CONSTANT WORD
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pfillw(a) // Poke literal value into dictionary
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fin
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fin
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else
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pfillw(a) // Not really sure what to do here
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fin
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end
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def _docolon_#0
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execwords(W + 2) // Exec PFA
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end
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def _colon_#0
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newdict
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state = state | comp_mode
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if state & comp_itc_flag
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^(_ffa_(vlist)) = itc_flag
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*(_cfa_(vlist)) = @_docolon_
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else // comp_pbc_flag
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pfillb(^(@divmod)) // Hack - get VM entry vector from divmod
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pfillw(*(@divmod + 1))
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fin
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end
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def _semi_#0
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if state & comp_itc_flag
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pfillw(0)
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@ -1657,6 +1663,7 @@ end
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//
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def _quit_#0
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state = 0
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warmstart
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throw(exit, FALSE)
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end
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//
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@ -1664,8 +1671,7 @@ end
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//
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def _abort_#0
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puts("Abort\n")
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warmstart
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throw(exit, FALSE)
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_quit_
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end
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//
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// Restart
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