version 1.134, 2003/03/09 15:16:52
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version 1.139, 2003/05/15 18:43:15
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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 |
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require compat/strcomp.fs |
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warnings off |
warnings off |
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\ redefinitions of kernel words not present in gforth-0.6.1 |
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: latestxt lastcfa @ ; |
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: latest last @ ; |
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[IFUNDEF] try |
[IFUNDEF] try |
include startup.fs |
include startup.fs |
[THEN] |
[THEN] |
Line 608 wordlist constant type-names \ this is h
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Line 615 wordlist constant type-names \ this is h
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get-current type-names set-current |
get-current type-names set-current |
stack-type 2dup nextname stack-type-name |
stack-type 2dup nextname stack-type-name |
set-current |
set-current |
stack-pointer lastxt >body stack-name nextname make-stack ; |
stack-pointer latestxt >body stack-name nextname make-stack ; |
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stack inst-stream IP Cell |
stack inst-stream IP Cell |
' inst-in-index inst-stream stack-in-index-xt ! |
' inst-in-index inst-stream stack-in-index-xt ! |
Line 1264 variable tail-nextp2 \ xt to execute for
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Line 1271 variable tail-nextp2 \ xt to execute for
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\ int loads; /* number of stack loads */ |
\ int loads; /* number of stack loads */ |
\ int stores; /* number of stack stores */ |
\ int stores; /* number of stack stores */ |
\ int updates; /* number of stack pointer updates */ |
\ int updates; /* number of stack pointer updates */ |
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\ int offset; /* offset into super2 table */ |
\ int length; /* number of components */ |
\ int length; /* number of components */ |
\ int *components; /* array of vm_prim indexes of components */ |
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\ }; |
\ }; |
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\ How do you know which primitive or combined instruction this |
\ How do you know which primitive or combined instruction this |
\ structure refers to? By the order of cost structures, as in most |
\ structure refers to? By the order of cost structures, as in most |
\ other cases. |
\ other cases. |
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: super2-length ( -- n ) |
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combined if |
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num-combined @ |
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else |
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1 |
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endif ; |
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: compute-costs { p -- nloads nstores nupdates } |
: compute-costs { p -- nloads nstores nupdates } |
\ compute the number of loads, stores, and stack pointer updates |
\ compute the number of loads, stores, and stack pointer updates |
\ of a primitive or combined instruction; does not take TOS |
\ of a primitive or combined instruction; does not take TOS |
\ caching into account, nor that IP updates are combined with |
\ caching into account |
\ other stuff |
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0 max-stacks 0 +do |
0 max-stacks 0 +do |
p prim-stacks-in i th @ + |
p prim-stacks-in i th @ + |
loop |
loop |
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super2-length 1- - \ don't count instruction fetches of subsumed insts |
0 max-stacks 0 +do |
0 max-stacks 0 +do |
p prim-stacks-out i th @ + |
p prim-stacks-out i th @ + |
loop |
loop |
0 max-stacks 0 +do |
0 max-stacks 1 +do \ don't count ip updates, therefore "1 +do" |
p prim-stacks-in i th @ p prim-stacks-out i th @ <> - |
p prim-stacks-in i th @ p prim-stacks-out i th @ <> - |
loop ; |
loop ; |
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: output-num-part ( p -- ) |
: output-num-part ( p -- ) |
prim-num @ 4 .r ." ," ; |
prim-num @ 4 .r ." ," ; |
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: output-name-comment ( -- ) |
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." /* " prim prim-name 2@ type ." */" ; |
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variable offset-super2 0 offset-super2 ! \ offset into the super2 table |
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: output-costs ( -- ) |
: output-costs ( -- ) |
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\ 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 ." ," |
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offset-super2 @ 5 .r ." ," |
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super2-length dup 2 .r ." }," offset-super2 +! |
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output-name-comment |
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cr ; |
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: output-super2 ( -- ) |
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\ table of superinstructions without requirement for existing prefixes |
combined if |
combined if |
num-combined @ 2 .r |
['] output-num-part map-combined |
." , ((int []){" ['] output-num-part map-combined ." })}, /* " |
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else |
else |
." 1, ((int []){" prim prim-num @ 4 .r ." })}, /* " |
prim output-num-part |
endif |
endif |
prim prim-name 2@ type ." */" |
output-name-comment |
cr ; |
cr ; |
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\ the parser |
\ the parser |
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Line 1477 Variable c-flag
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Line 1503 Variable c-flag
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start }} [ifdef] vmgen c-ident [else] forth-ident [then] {{ end |
start }} [ifdef] vmgen c-ident [else] forth-ident [then] {{ end |
2dup prim prim-name 2! prim prim-c-name 2! }} white ** |
2dup prim prim-name 2! prim prim-c-name 2! }} white ** |
(( ` / white ** {{ start }} c-ident {{ end prim prim-c-name 2! }} white ** )) ?? |
(( ` / white ** {{ start }} c-ident {{ end prim prim-c-name 2! }} white ** )) ?? |
(( simple-primitive || combined-primitive )) {{ 1 function-number +! }} |
(( simple-primitive || combined-primitive )) |
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{{ 1 function-number +! }} |
)) <- primitive ( -- ) |
)) <- primitive ( -- ) |
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(( (( comment || primitive || nl white ** )) ** eof )) |
(( (( comment || primitive || nl white ** )) ** eof )) |