version 1.156, 2005/07/27 19:44:20
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version 1.162, 2006/10/25 22:01:16
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\ converts primitives to, e.g., C code |
\ converts primitives to, e.g., C code |
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\ Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005 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 51
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Line 51
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\ (stack-in-index-xt and a test for stack==instruction-stream); there |
\ (stack-in-index-xt and a test for stack==instruction-stream); there |
\ should be only one. |
\ should be only one. |
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\ for backwards compatibility, jaw |
\ for backwards compatibility, jaw |
require compat/strcomp.fs |
require compat/strcomp.fs |
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Line 102 variable include-skipped-insts
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Line 103 variable include-skipped-insts
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\ inline arguments (false) |
\ inline arguments (false) |
include-skipped-insts off |
include-skipped-insts off |
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2variable threaded-code-pointer-type \ type used for geninst etc. |
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s" Inst **" threaded-code-pointer-type 2! |
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variable immarg \ values for immediate arguments (to be used in IMM_ARG macros) |
variable immarg \ values for immediate arguments (to be used in IMM_ARG macros) |
$12340000 immarg ! |
$12340000 immarg ! |
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Line 201 struct%
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Line 205 struct%
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end-struct ss% \ stack-state |
end-struct ss% \ stack-state |
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struct% |
struct% |
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cell% field state-enabled |
cell% field state-number |
cell% field state-number |
cell% max-stacks * field state-sss |
cell% max-stacks * field state-sss |
end-struct state% |
end-struct state% |
Line 231 variable next-state-number 0 next-state-
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Line 236 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 351 wordlist constant primitives
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Line 356 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 497 defer inst-stream-f ( -- stack )
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Line 505 defer inst-stream-f ( -- stack )
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." vm_two" |
." vm_two" |
r@ item-stack-type-name type ." 2" |
r@ item-stack-type-name type ." 2" |
r@ item-type @ print-type-prefix ." (" |
r@ item-type @ print-type-prefix ." (" |
r@ item-in-index r@ item-stack @ 2dup ." (Cell)" stack-read |
r@ item-in-index r@ item-stack @ 2dup stack-read |
." , " -1 under+ ." (Cell)" stack-read |
." , " -1 under+ stack-read |
." , " r@ item-name 2@ type |
." , " r@ item-name 2@ type |
." )" cr |
." )" cr |
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 616 does> ( item -- )
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Line 627 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 650 does> ( item -- )
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Line 662 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 |
get-current prefixes set-current |
: ... ( item -- ) |
: ... ( item -- ) |
\ this "prefix" ensures that the appropriate stack is synced with memory |
\ this "prefix" ensures that the appropriate stack is synced with memory |
dup item-name 2@ s" ..." str= 0= abort" '...' must end the item name" |
dup item-name 2@ s" ..." str= 0= abort" '...' must end the item name" |
item-stack @ dup if |
item-stack @ dup if |
stack-number @ prim prim-stacks-sync swap th on |
set-prim-stacks-sync |
else \ prefixless "..." syncs all stacks |
else \ prefixless "..." syncs all stacks |
max-stacks 0 +do |
drop ['] set-prim-stacks-sync map-stacks1 |
prim prim-stacks-sync i th on |
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loop |
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endif ; |
endif ; |
set-current |
set-current |
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Line 739 stack inst-stream IP Cell
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Line 756 stack inst-stream IP Cell
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: state ( "name" -- ) |
: state ( "name" -- ) |
\ create a state initialized with default-sss |
\ create a state initialized with default-sss |
create state% %allot { s } |
create state% %allot { s } |
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s state-enabled on |
next-state-number @ s state-number ! 1 next-state-number +! |
next-state-number @ s state-number ! 1 next-state-number +! |
max-stacks 0 ?do |
max-stacks 0 ?do |
default-ss s state-sss i th ! |
default-ss s state-sss i th ! |
loop ; |
loop ; |
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: state-disable ( state -- ) |
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state-enabled off ; |
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: state-enabled? ( state -- f ) |
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state-enabled @ ; |
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: .state ( state -- ) |
: .state ( state -- ) |
0 >body - >name .name ; |
0 >body - >name .name ; |
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Line 775 stack inst-stream IP Cell
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Line 799 stack inst-stream IP Cell
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: init-simple { prim -- } |
: init-simple { prim -- } |
\ much of the initialization is elsewhere |
\ much of the initialization is elsewhere |
max-stacks 0 +do |
['] clear-prim-stacks-sync map-stacks ; |
prim prim-stacks-sync i th off |
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loop ; |
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: process-simple ( -- ) |
: process-simple ( -- ) |
prim init-simple |
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prim prim { W^ key } key cell |
prim prim { W^ key } key cell |
combinations ['] constant insert-wordlist |
combinations ['] constant insert-wordlist |
declarations compute-offsets |
declarations compute-offsets |
Line 795 stack inst-stream IP Cell
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Line 816 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 809 stack inst-stream IP Cell
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Line 838 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 868 stack inst-stream IP Cell
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Line 905 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 957 variable tail-nextp2 \ xt to execute for
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Line 1014 variable tail-nextp2 \ xt to execute for
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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 ; |
Line 1020 variable tail-nextp2 \ xt to execute for
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Line 1078 variable tail-nextp2 \ xt to execute for
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bounds ?DO I c@ dup '* = IF drop 'x THEN emit LOOP |
bounds ?DO I c@ dup '* = IF drop 'x THEN emit LOOP |
ELSE type THEN ; |
ELSE type THEN ; |
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: output-c ( -- ) |
: output-c ( -- ) |
print-entry ." /* " prim prim-name 2@ prim-type |
print-entry ." /* " prim prim-name 2@ prim-type |
." ( " prim prim-stack-string 2@ type ." ) " |
." ( " prim prim-stack-string 2@ type ." ) " |
state-in .state ." -- " state-out .state ." */" cr |
state-in .state ." -- " state-out .state ." */" cr |
Line 1123 variable tail-nextp2 \ xt to execute for
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Line 1181 variable tail-nextp2 \ xt to execute for
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: output-gen ( -- ) |
: output-gen ( -- ) |
\ generate C code for generating VM instructions |
\ generate C code for generating VM instructions |
." void gen_" prim prim-c-name 2@ type ." (Inst **ctp" gen-args-parm ." )" cr |
." void gen_" prim prim-c-name 2@ type ." (" |
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threaded-code-pointer-type 2@ type ." ctp" gen-args-parm ." )" cr |
." {" cr |
." {" cr |
." gen_inst(ctp, vm_prim[" function-number @ 0 .r ." ]);" cr |
." gen_inst(ctp, " function-number @ 0 .r ." );" cr |
gen-args-gen |
gen-args-gen |
." }" cr ; |
." }" cr ; |
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Line 1411 variable reprocessed-num 0 reprocessed-n
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Line 1470 variable reprocessed-num 0 reprocessed-n
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: state-prim1 { in-state out-state prim -- } |
: state-prim1 { in-state out-state prim -- } |
in-state out-state state-default dup d= ?EXIT |
in-state out-state state-default dup d= ?EXIT |
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in-state state-enabled? out-state state-enabled? and 0= ?EXIT |
in-state to state-in |
in-state to state-in |
out-state to state-out |
out-state to state-out |
prim reprocess-simple ; |
prim reprocess-simple ; |
Line 1429 variable reprocessed-num 0 reprocessed-n
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Line 1489 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 1755 nl-char singleton eof-char over add-memb
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Line 1818 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 1818 Variable c-flag
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Line 1885 Variable c-flag
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{{ 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! }} )) ?? |