version 1.146, 2003/10/16 18:48:03
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version 1.158, 2005/07/28 19:15:00
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\ converts primitives to, e.g., C code |
\ converts primitives to, e.g., C code |
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\ Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 231 variable next-state-number 0 next-state-
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Line 231 variable next-state-number 0 next-state-
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rdrop ; |
rdrop ; |
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: map-stacks { xt -- } |
: map-stacks { xt -- } |
\ perform xt for all stacks |
\ perform xt ( stack -- ) for all stacks |
next-stack-number @ 0 +do |
next-stack-number @ 0 +do |
stacks i th @ xt execute |
stacks i th @ xt execute |
loop ; |
loop ; |
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: map-stacks1 { xt -- } |
: map-stacks1 { xt -- } |
\ perform xt for all stacks except inst-stream |
\ perform xt ( stack -- ) for all stacks except inst-stream |
next-stack-number @ 1 +do |
next-stack-number @ 1 +do |
stacks i th @ xt execute |
stacks i th @ xt execute |
loop ; |
loop ; |
Line 246 variable next-state-number 0 next-state-
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Line 246 variable next-state-number 0 next-state-
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: init-item ( addr u addr1 -- ) |
: init-item ( addr u addr1 -- ) |
\ initialize item at addr1 with name addr u |
\ initialize item at addr1 with name addr u |
\ !! remove stack prefix |
\ the stack prefix is removed by the stack-prefix |
dup item% %size erase |
dup item% %size erase |
item-name 2! ; |
item-name 2! ; |
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Line 280 struct%
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Line 280 struct%
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cell% field prim-effect-out-end |
cell% field prim-effect-out-end |
cell% max-stacks * field prim-stacks-in \ number of in items per stack |
cell% max-stacks * field prim-stacks-in \ number of in items per stack |
cell% max-stacks * field prim-stacks-out \ number of out items per stack |
cell% max-stacks * field prim-stacks-out \ number of out items per stack |
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cell% max-stacks * field prim-stacks-sync \ sync flag per stack |
end-struct prim% |
end-struct prim% |
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: make-prim ( -- prim ) |
: make-prim ( -- prim ) |
Line 350 wordlist constant primitives
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Line 351 wordlist constant primitives
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\ address of number of stack items in effect out |
\ address of number of stack items in effect out |
stack-number @ cells prim prim-stacks-out + ; |
stack-number @ cells prim prim-stacks-out + ; |
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: stack-prim-stacks-sync ( stack -- addr ) |
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prim prim-stacks-sync swap stack-number @ th ; |
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\ global vars |
\ global vars |
variable c-line |
variable c-line |
2variable c-filename |
2variable c-filename |
Line 503 defer inst-stream-f ( -- stack )
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Line 507 defer inst-stream-f ( -- stack )
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rdrop ; |
rdrop ; |
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: same-as-in? ( item -- f ) |
: same-as-in? ( item -- f ) |
\ f is true iff the offset and stack of item is the same as on input |
\ f is true iff the offset and stack of item is the same as on input |
>r |
>r |
r@ item-first @ if |
r@ item-stack @ stack-prim-stacks-sync @ if |
rdrop false exit |
rdrop false exit |
endif |
endif |
r@ item-name 2@ prim prim-items-wordlist @ search-wordlist 0= abort" bug" |
r@ item-first @ if |
execute @ |
rdrop false exit |
dup r@ = |
endif |
if \ item first appeared in output |
r@ item-name 2@ prim prim-items-wordlist @ search-wordlist 0= abort" bug" |
drop false |
execute @ |
else |
dup r@ = |
dup item-stack @ r@ item-stack @ = |
if \ item first appeared in output |
swap item-offset @ r@ item-offset @ = and |
drop false |
endif |
else |
rdrop ; |
dup item-stack @ r@ item-stack @ = |
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swap item-offset @ r@ item-offset @ = and |
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endif |
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rdrop ; |
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: item-out-index ( item -- n ) |
: item-out-index ( item -- n ) |
\ n is the index of item (in the out-effect) |
\ n is the index of item (in the out-effect) |
Line 535 defer inst-stream-f ( -- stack )
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Line 542 defer inst-stream-f ( -- stack )
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: store-single { item -- } |
: store-single { item -- } |
item item-stack @ { stack } |
item item-stack @ { stack } |
store-optimization @ in-part @ 0= and item same-as-in? and |
store-optimization @ in-part @ 0= and item same-as-in? and |
item item-in-index stack state-in stack-reg 0= and \ in in memory? |
item item-in-index stack state-in stack-reg \ in reg/mem |
item item-out-index stack state-out stack-reg 0= and \ out in memory? |
item item-out-index stack state-out stack-reg = and \ out reg/mem |
0= if |
0= if |
item really-store-single cr |
item really-store-single cr |
endif ; |
endif ; |
Line 615 does> ( item -- )
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Line 622 does> ( item -- )
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UNLOOP EXIT |
UNLOOP EXIT |
endif |
endif |
-1 s+loop |
-1 s+loop |
\ we did not find a type, abort |
\ we did not find a type, abort |
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abort |
false s" unknown prefix" ?print-error ; |
false s" unknown prefix" ?print-error ; |
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: declaration ( item -- ) |
: declaration ( item -- ) |
Line 649 does> ( item -- )
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Line 657 does> ( item -- )
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stack item item-stack ! |
stack item item-stack ! |
item declaration ; |
item declaration ; |
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: set-prim-stacks-sync ( stack -- ) |
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stack-prim-stacks-sync on ; |
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: clear-prim-stacks-sync ( stack -- ) |
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stack-prim-stacks-sync off ; |
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get-current prefixes set-current |
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: ... ( item -- ) |
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\ this "prefix" ensures that the appropriate stack is synced with memory |
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dup item-name 2@ s" ..." str= 0= abort" '...' must end the item name" |
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item-stack @ dup if |
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set-prim-stacks-sync |
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else \ prefixless "..." syncs all stacks |
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drop ['] set-prim-stacks-sync map-stacks1 |
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endif ; |
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set-current |
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create ...-item ( -- addr ) \ just used for letting stack-prefixes work on it |
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item% %allot \ stores the stack temporarily until used by ... |
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: init-item1 ( addr1 addr u -- addr2 ) |
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\ initialize item at addr1 with name addr u, next item is at addr2 |
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\ !! make sure that any mention of "..." is only stack-prefixed |
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2dup s" ..." search nip nip if ( addr1 addr u ) |
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0 ...-item item-stack ! \ initialize to prefixless |
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2dup ...-item item-name 2! |
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...-item rot rot execute-prefix ( addr1 ) |
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else |
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2 pick init-item item% %size + |
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endif ; |
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\ types pointed to by stacks for use in combined prims |
\ types pointed to by stacks for use in combined prims |
\ !! output-c-combined shouldn't use these names! |
\ !! output-c-combined shouldn't use these names! |
: stack-type-name ( addr u "name" -- ) |
: stack-type-name ( addr u "name" -- ) |
Line 716 stack inst-stream IP Cell
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Line 756 stack inst-stream IP Cell
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default-ss s state-sss i th ! |
default-ss s state-sss i th ! |
loop ; |
loop ; |
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: .state ( state -- ) |
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0 >body - >name .name ; |
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: set-ss ( ss stack state -- ) |
: set-ss ( ss stack state -- ) |
state-sss swap stack-number @ th ! ; |
state-sss swap stack-number @ th ! ; |
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Line 742 stack inst-stream IP Cell
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Line 785 stack inst-stream IP Cell
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prim prim-effect-out prim prim-effect-out-end @ ['] compute-offset-out map-items |
prim prim-effect-out prim prim-effect-out-end @ ['] compute-offset-out map-items |
inst-stream stack-out @ 0= s" # can only be on the input side" ?print-error ; |
inst-stream stack-out @ 0= s" # can only be on the input side" ?print-error ; |
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: init-simple { prim -- } |
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\ much of the initialization is elsewhere |
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['] clear-prim-stacks-sync map-stacks ; |
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: process-simple ( -- ) |
: process-simple ( -- ) |
prim prim { W^ key } key cell |
prim prim { W^ key } key cell |
combinations ['] constant insert-wordlist |
combinations ['] constant insert-wordlist |
Line 757 stack inst-stream IP Cell
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Line 804 stack inst-stream IP Cell
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stack state-in stack-state-items stack stack-in @ - 0 max |
stack state-in stack-state-items stack stack-in @ - 0 max |
stack state-out stack-state-items stack stack-out @ - 0 max ; |
stack state-out stack-state-items stack stack-out @ - 0 max ; |
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: spill-stack-items { stack -- u } |
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\ there are u items to spill in stack |
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stack unused-stack-items |
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stack stack-prim-stacks-sync @ if |
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drop 0 |
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endif |
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swap - ; |
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: spill-stack { stack -- } |
: spill-stack { stack -- } |
\ spill regs of state-in that are not used by prim and are not in state-out |
\ spill regs of state-in that are not used by prim and are not in state-out |
stack state-in stack-offset { offset } |
stack state-in stack-offset { offset } |
stack state-in stack-state-items ( items ) |
stack state-in stack-state-items ( items ) |
dup stack unused-stack-items - - +do |
dup stack spill-stack-items + +do |
\ loop through the bottom items |
\ loop through the bottom items |
stack stack-pointer 2@ type |
stack stack-pointer 2@ type |
i offset - stack normal-stack-access0 ." = " |
i offset - stack normal-stack-access0 ." = " |
Line 771 stack inst-stream IP Cell
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Line 826 stack inst-stream IP Cell
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: spill-state ( -- ) |
: spill-state ( -- ) |
['] spill-stack map-stacks1 ; |
['] spill-stack map-stacks1 ; |
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: fill-stack-items { stack -- u } |
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\ there are u items to fill in stack |
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stack unused-stack-items |
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stack stack-prim-stacks-sync @ if |
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swap drop 0 swap |
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endif |
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- ; |
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: fill-stack { stack -- } |
: fill-stack { stack -- } |
stack state-out stack-offset { offset } |
stack state-out stack-offset { offset } |
stack state-out stack-state-items ( items ) |
stack state-out stack-state-items ( items ) |
dup stack unused-stack-items - + +do |
dup stack fill-stack-items + +do |
\ loop through the bottom items |
\ loop through the bottom items |
i stack state-out normal-stack-access1 ." = " |
i stack state-out normal-stack-access1 ." = " |
stack stack-pointer 2@ type |
stack stack-pointer 2@ type |
Line 830 stack inst-stream IP Cell
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Line 893 stack inst-stream IP Cell
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stack-access-transform @ dup >r execute |
stack-access-transform @ dup >r execute |
0 r> execute - ; |
0 r> execute - ; |
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: stack-pointer-update { stack -- } |
: update-stack-pointer { stack n -- } |
\ and moves |
n if \ this check is not necessary, gcc would do this for us |
\ stacks grow downwards |
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stack stack-diff ( in-out ) |
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stack state-in stack-offset - |
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stack state-out stack-offset + ( [in-in_offset]-[out-out_offset] ) |
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?dup-if \ this check is not necessary, gcc would do this for us |
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stack inst-stream = if |
stack inst-stream = if |
." INC_IP(" 0 .r ." );" cr |
." INC_IP(" n 0 .r ." );" cr |
else |
else |
stack stack-pointer 2@ type ." += " |
stack stack-pointer 2@ type ." += " |
stack stack-update-transform 0 .r ." ;" cr |
n stack stack-update-transform 0 .r ." ;" cr |
endif |
endif |
endif |
endif ; |
stack stack-moves ; |
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: stack-pointer-update { stack -- } |
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\ and moves |
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\ stacks grow downwards |
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stack stack-prim-stacks-sync @ if |
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stack stack-in @ |
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stack state-in stack-offset - |
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stack swap update-stack-pointer |
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else |
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stack stack-diff ( in-out ) |
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stack state-in stack-offset - |
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stack state-out stack-offset + ( [in-in_offset]-[out-out_offset] ) |
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stack swap update-stack-pointer |
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stack stack-moves |
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endif ; |
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: stack-pointer-updates ( -- ) |
: stack-pointer-updates ( -- ) |
['] stack-pointer-update map-stacks ; |
['] stack-pointer-update map-stacks ; |
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: stack-pointer-update2 { stack -- } |
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stack stack-prim-stacks-sync @ if |
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stack state-out stack-offset |
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stack stack-out @ - |
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stack swap update-stack-pointer |
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endif ; |
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: stack-pointer-updates2 ( -- ) |
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\ update stack pointers after C code, where necessary |
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['] stack-pointer-update2 map-stacks ; |
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: store ( item -- ) |
: store ( item -- ) |
\ f is true if the item should be stored |
\ f is true if the item should be stored |
\ f is false if the store is probably not necessary |
\ f is false if the store is probably not necessary |
Line 910 variable tail-nextp2 \ xt to execute for
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Line 993 variable tail-nextp2 \ xt to execute for
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: output-label2 ( -- ) |
: output-label2 ( -- ) |
." LABEL2(" prim prim-c-name 2@ type ." )" cr |
." LABEL2(" prim prim-c-name 2@ type ." )" cr |
." NEXT_P2;" cr ; |
." NEXT_P1_5;" cr |
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." LABEL3(" prim prim-c-name 2@ type ." )" cr |
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." DO_GOTO;" cr ; |
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: output-c-tail1 { xt -- } |
: output-c-tail1 { xt -- } |
\ the final part of the generated C code, with xt printing LABEL2 or not. |
\ the final part of the generated C code, with xt printing LABEL2 or not. |
output-super-end |
output-super-end |
print-debug-results |
print-debug-results |
output-nextp1 |
output-nextp1 |
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stack-pointer-updates2 |
stores |
stores |
fill-state |
fill-state |
xt execute ; |
xt execute ; |
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: output-c-vm-jump-tail ( -- ) |
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\ !! this functionality not yet implemented for superinstructions |
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output-super-end |
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print-debug-results |
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stores |
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fill-state |
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." LABEL2(" prim prim-c-name 2@ type ." )" cr |
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." LABEL3(" prim prim-c-name 2@ type ." )" cr |
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." DO_GOTO;" cr ; |
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: output-c-tail1-no-stores { xt -- } |
: output-c-tail1-no-stores { xt -- } |
\ the final part of the generated C code for combinations |
\ the final part of the generated C code for combinations |
output-super-end |
output-super-end |
Line 932 variable tail-nextp2 \ xt to execute for
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Line 1028 variable tail-nextp2 \ xt to execute for
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tail-nextp2 @ output-c-tail1 ; |
tail-nextp2 @ output-c-tail1 ; |
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: output-c-tail2 ( -- ) |
: output-c-tail2 ( -- ) |
['] output-label2 output-c-tail1 ; |
prim prim-c-code 2@ s" VM_JUMP(" search nip nip if |
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output-c-vm-jump-tail |
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else |
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['] output-label2 output-c-tail1 |
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endif ; |
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: output-c-tail-no-stores ( -- ) |
: output-c-tail-no-stores ( -- ) |
tail-nextp2 @ output-c-tail1-no-stores ; |
tail-nextp2 @ output-c-tail1-no-stores ; |
Line 959 variable tail-nextp2 \ xt to execute for
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Line 1059 variable tail-nextp2 \ xt to execute for
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: print-entry ( -- ) |
: print-entry ( -- ) |
." LABEL(" prim prim-c-name 2@ type ." )" ; |
." LABEL(" prim prim-c-name 2@ type ." )" ; |
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: output-c ( -- ) |
: prim-type ( addr u -- ) |
print-entry ." /* " prim prim-name 2@ type ." ( " prim prim-stack-string 2@ type ." ) */" cr |
\ print out a primitive, but avoid "*/" |
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2dup s" */" search nip nip IF |
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bounds ?DO I c@ dup '* = IF drop 'x THEN emit LOOP |
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ELSE type THEN ; |
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: output-c ( -- ) |
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print-entry ." /* " prim prim-name 2@ prim-type |
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." ( " prim prim-stack-string 2@ type ." ) " |
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state-in .state ." -- " state-out .state ." */" cr |
." /* " prim prim-doc 2@ type ." */" cr |
." /* " prim prim-doc 2@ type ." */" cr |
." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging |
." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging |
." {" cr |
." {" cr |
Line 1039 variable tail-nextp2 \ xt to execute for
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Line 1147 variable tail-nextp2 \ xt to execute for
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prim prim-branch? |
prim prim-branch? |
prim prim-c-code 2@ s" SUPER_END" search nip nip 0<> or |
prim prim-c-code 2@ s" SUPER_END" search nip nip 0<> or |
prim prim-c-code 2@ s" SUPER_CONTINUE" search nip nip 0= and |
prim prim-c-code 2@ s" SUPER_CONTINUE" search nip nip 0= and |
negate 0 .r ." , /* " prim prim-name 2@ type ." */" cr ; |
negate 0 .r ." , /* " prim prim-name 2@ prim-type ." */" cr ; |
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: gen-arg-parm { item -- } |
: gen-arg-parm { item -- } |
item item-stack @ inst-stream = if |
item item-stack @ inst-stream = if |
Line 1110 variable tail-nextp2 \ xt to execute for
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Line 1218 variable tail-nextp2 \ xt to execute for
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: output-alias ( -- ) |
: output-alias ( -- ) |
( primitive-number @ . ." alias " ) ." Primitive " prim prim-name 2@ type cr ; |
( primitive-number @ . ." alias " ) ." Primitive " prim prim-name 2@ type cr ; |
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: output-c-prim-num ( -- ) |
defer output-c-prim-num ( -- ) |
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:noname ( -- ) |
." N_" prim prim-c-name 2@ type ." ," cr ; |
." N_" prim prim-c-name 2@ type ." ," cr ; |
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is output-c-prim-num |
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: output-forth ( -- ) |
: output-forth ( -- ) |
prim prim-forth-code @ 0= |
prim prim-forth-code @ 0= |
Line 1364 variable reprocessed-num 0 reprocessed-n
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Line 1475 variable reprocessed-num 0 reprocessed-n
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: compute-default-state-out ( n-in -- n-out ) |
: compute-default-state-out ( n-in -- n-out ) |
\ for the current prim |
\ for the current prim |
cache-stack stack-in @ - 0 max |
cache-stack stack-in @ - 0 max |
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cache-stack stack-prim-stacks-sync @ if |
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drop 0 |
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endif |
cache-stack stack-out @ + cache-states 2@ nip 1- min ; |
cache-stack stack-out @ + cache-states 2@ nip 1- min ; |
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: gen-prim-states ( prim -- ) |
: gen-prim-states ( prim -- ) |
Line 1442 variable reprocessed-num 0 reprocessed-n
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Line 1556 variable reprocessed-num 0 reprocessed-n
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: output-part ( p -- ) |
: output-part ( p -- ) |
to prim |
to prim |
." /* " prim prim-name 2@ type ." ( " prim prim-stack-string 2@ type ." ) */" cr |
." /* " prim prim-name 2@ prim-type ." ( " prim prim-stack-string 2@ type ." ) */" cr |
." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging |
." NAME(" quote prim prim-name 2@ type quote ." )" cr \ debugging |
." {" cr |
." {" cr |
print-declarations |
print-declarations |
Line 1550 variable reprocessed-num 0 reprocessed-n
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Line 1664 variable reprocessed-num 0 reprocessed-n
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\ prim-num @ 4 .r ." ," ; |
\ prim-num @ 4 .r ." ," ; |
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: output-name-comment ( -- ) |
: output-name-comment ( -- ) |
." /* " prim prim-name 2@ type ." */" ; |
." /* " prim prim-name 2@ prim-type ." */" ; |
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variable offset-super2 0 offset-super2 ! \ offset into the super2 table |
variable offset-super2 0 offset-super2 ! \ offset into the super2 table |
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Line 1559 variable offset-super2 0 offset-super2
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Line 1673 variable offset-super2 0 offset-super2
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rot 2 .r ." ," swap 2 .r ." ," 2 .r ." , " |
rot 2 .r ." ," swap 2 .r ." ," 2 .r ." , " |
prim prim-branch? negate . ." ," |
prim prim-branch? negate . ." ," |
state-in state-number @ 2 .r ." ," |
state-in state-number @ 2 .r ." ," |
state-out state-number @ 2 .r ." ," ; |
state-out state-number @ 2 .r ." ," |
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inst-stream stack-in @ 1 .r ." ," |
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; |
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: output-costs-gforth-simple ( -- ) |
: output-costs-gforth-simple ( -- ) |
output-costs-prefix |
output-costs-prefix |
Line 1575 variable offset-super2 0 offset-super2
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Line 1691 variable offset-super2 0 offset-super2
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output-name-comment |
output-name-comment |
cr ; |
cr ; |
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: output-costs ( -- ) |
\ : output-costs ( -- ) |
\ description of superinstructions and simple instructions |
\ \ description of superinstructions and simple instructions |
." {" prim compute-costs |
\ ." {" prim compute-costs |
rot 2 .r ." ," swap 2 .r ." ," 2 .r ." ," |
\ rot 2 .r ." ," swap 2 .r ." ," 2 .r ." ," |
offset-super2 @ 5 .r ." ," |
\ offset-super2 @ 5 .r ." ," |
super2-length dup 2 .r ." }," offset-super2 +! |
\ super2-length dup 2 .r ." ," offset-super2 +! |
output-name-comment |
\ inst-stream stack-in @ 1 .r ." }," |
cr ; |
\ output-name-comment |
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\ cr ; |
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: output-super2-simple ( -- ) |
: output-super2-simple ( -- ) |
prim prim-c-name 2@ prim prim-c-name-orig 2@ d= if |
prim prim-c-name 2@ prim prim-c-name-orig 2@ d= if |
Line 1687 nl-char singleton eof-char over add-memb
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Line 1804 nl-char singleton eof-char over add-memb
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(( letter (( letter || digit )) ** |
(( letter (( letter || digit )) ** |
)) <- c-ident ( -- ) |
)) <- c-ident ( -- ) |
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(( ` # ?? (( letter || digit || ` : )) ++ |
(( ` . ` . ` . |
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)) <- sync-stack ( -- ) |
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(( ` # ?? (( letter || digit || ` : )) ++ sync-stack ?? |
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|| sync-stack |
)) <- stack-ident ( -- ) |
)) <- stack-ident ( -- ) |
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(( nowhitebq nowhite ** )) |
(( nowhitebq nowhite ** )) |
Line 1742 Variable c-flag
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Line 1863 Variable c-flag
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(( ` \ comment-body nleof )) <- comment ( -- ) |
(( ` \ comment-body nleof )) <- comment ( -- ) |
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(( {{ start }} stack-ident {{ end 2 pick init-item item% %size + }} white ** )) ** |
(( {{ start }} stack-ident {{ end init-item1 }} white ** )) ** |
<- stack-items |
<- stack-items ( addr1 -- addr2 ) |
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(( {{ prim prim-effect-in }} stack-items {{ prim prim-effect-in-end ! }} |
(( {{ prim prim-effect-in }} stack-items {{ prim prim-effect-in-end ! }} |
` - ` - white ** |
` - ` - white ** |
{{ prim prim-effect-out }} stack-items {{ prim prim-effect-out-end ! }} |
{{ prim prim-effect-out }} stack-items {{ prim prim-effect-out-end ! }} |
)) <- stack-effect ( -- ) |
)) <- stack-effect ( -- ) |
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(( {{ prim create-prim }} |
(( {{ prim create-prim prim init-simple }} |
` ( white ** {{ start }} stack-effect {{ end prim prim-stack-string 2! }} ` ) white ** |
` ( white ** {{ start }} stack-effect {{ end prim prim-stack-string 2! }} ` ) white ** |
(( {{ start }} forth-ident {{ end prim prim-wordset 2! }} white ** |
(( {{ start }} forth-ident {{ end prim prim-wordset 2! }} white ** |
(( {{ start }} c-ident {{ end 2dup prim-c-name-2! }} )) ?? |
(( {{ start }} c-ident {{ end 2dup prim-c-name-2! }} )) ?? |