version 1.121, 2002/03/19 18:07:55
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version 1.131, 2002/12/27 17:19:33
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Line 27 ToDo:
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Line 27 ToDo:
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cross.fs is used seperately. jaw |
cross.fs is used seperately. jaw |
- Do we need this char translation with >address and in branchoffset? |
- Do we need this char translation with >address and in branchoffset? |
(>body also affected) jaw |
(>body also affected) jaw |
- MAXU etc. can be done with dlit, |
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[THEN] |
[THEN] |
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s" compat/strcomp.fs" included |
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hex |
hex |
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\ debugging for compiling |
\ debugging for compiling |
Line 71 H
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Line 72 H
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>CROSS |
>CROSS |
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\ Test against this definitions to find out whether we are cross-compiling |
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\ may be usefull for assemblers |
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0 Constant gforth-cross-indicator |
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\ find out whether we are compiling with gforth |
\ find out whether we are compiling with gforth |
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: defined? bl word find nip ; |
: defined? bl word find nip ; |
Line 256 hex
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Line 261 hex
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\ FIXME move down |
\ FIXME move down |
: comment? ( c-addr u -- c-addr u ) |
: comment? ( c-addr u -- c-addr u ) |
2dup s" (" compare 0= |
2dup s" (" str= |
IF postpone ( |
IF postpone ( |
ELSE 2dup s" \" compare 0= IF postpone \ THEN |
ELSE 2dup s" \" str= IF postpone \ THEN |
THEN ; |
THEN ; |
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: X ( -- <name> ) |
: X ( -- <name> ) |
Line 315 set-order previous
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Line 320 set-order previous
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\ POSTPONE false |
\ POSTPONE false |
THEN ; immediate |
THEN ; immediate |
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: symentry ( adr len taddr -- ) |
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\G Produce a symbol table (an optional symbol address |
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\G map) if wanted |
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[ [IFDEF] fd-symbol-table ] |
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base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! |
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s" :" fd-symbol-table write-file throw |
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fd-symbol-table write-line throw |
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[ [ELSE] ] |
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2drop drop |
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[ [THEN] ] ; |
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\ \ -------------------- source file |
\ \ -------------------- source file |
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decimal |
decimal |
Line 459 sourcepath value fpath
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Line 476 sourcepath value fpath
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2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... |
2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... |
over c@ [char] / = >r |
over c@ [char] / = >r |
over c@ [char] ~ = >r |
over c@ [char] ~ = >r |
\ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic |
\ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic |
2 min S" ./" compare 0= |
S" ./" string-prefix? |
r> r> r> or or or ; |
r> r> r> or or or ; |
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Create ofile 0 c, 255 chars allot |
Create ofile 0 c, 255 chars allot |
Line 476 Create tfile 0 c, 255 chars allot
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Line 493 Create tfile 0 c, 255 chars allot
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REPEAT ; |
REPEAT ; |
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: remove~+ ( -- ) |
: remove~+ ( -- ) |
ofile count 3 min s" ~+/" compare 0= |
ofile count s" ~+/" string-prefix? |
IF |
IF |
ofile count 3 /string ofile place |
ofile count 3 /string ofile place |
THEN ; |
THEN ; |
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: expandtopic ( -- ) \ stack effect correct? - anton |
: expandtopic ( -- ) \ stack effect correct? - anton |
\ expands "./" into an absolute name |
\ expands "./" into an absolute name |
ofile count 2 min s" ./" compare 0= |
ofile count s" ./" string-prefix? |
IF |
IF |
ofile count 1 /string tfile place |
ofile count 1 /string tfile place |
0 ofile c! sourcefilename extractpath ofile place |
0 ofile c! sourcefilename extractpath ofile place |
Line 496 Create tfile 0 c, 255 chars allot
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Line 513 Create tfile 0 c, 255 chars allot
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\ deletes phrases like "xy/.." out of our directory name 2dec97jaw |
\ deletes phrases like "xy/.." out of our directory name 2dec97jaw |
over swap |
over swap |
BEGIN dup WHILE |
BEGIN dup WHILE |
dup >r '/ scan 2dup 4 min s" /../" compare 0= |
dup >r '/ scan 2dup s" /../" string-prefix? |
IF |
IF |
dup r> - >r 4 /string over r> + 4 - |
dup r> - >r 4 /string over r> + 4 - |
swap 2dup + >r move dup r> over - |
swap 2dup + >r move dup r> over - |
Line 559 fpath= ~+
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Line 576 fpath= ~+
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: included? ( c-addr u -- f ) |
: included? ( c-addr u -- f ) |
file-list |
file-list |
BEGIN @ dup |
BEGIN @ dup |
WHILE >r 2dup r@ >fl-name count compare 0= |
WHILE >r 2dup r@ >fl-name count str= |
IF rdrop 2drop true EXIT THEN |
IF rdrop 2drop true EXIT THEN |
r> |
r> |
REPEAT |
REPEAT |
Line 1157 false DefaultValue header
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Line 1174 false DefaultValue header
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false DefaultValue backtrace |
false DefaultValue backtrace |
false DefaultValue new-input |
false DefaultValue new-input |
false DefaultValue peephole |
false DefaultValue peephole |
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false DefaultValue abranch |
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true DefaultValue control-rack |
[THEN] |
[THEN] |
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true DefaultValue interpreter |
true DefaultValue interpreter |
Line 1219 tbits/char bits/byte / Constant tbyte
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Line 1238 tbits/char bits/byte / Constant tbyte
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\ Variables 06oct92py |
\ Variables 06oct92py |
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Variable image |
Variable image |
Variable tlast TNIL tlast ! \ Last name field |
Variable (tlast) |
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(tlast) Value tlast TNIL tlast ! \ Last name field |
Variable tlastcfa \ Last code field |
Variable tlastcfa \ Last code field |
Variable bit$ |
Variable bit$ |
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Line 1243 Variable region-link \ linked
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Line 1263 Variable region-link \ linked
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Variable mirrored-link \ linked list for mirrored regions |
Variable mirrored-link \ linked list for mirrored regions |
0 dup mirrored-link ! region-link ! |
0 dup mirrored-link ! region-link ! |
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: >rname 8 cells + ; |
: >rname 7 cells + ; |
: >rbm 4 cells + ; \ bitfield per cell witch indicates relocation |
: >rbm 4 cells + ; |
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: >rmem 5 cells + ; |
: >rmem 5 cells + ; |
: >rtype 6 cells + ; |
: >rtype 6 cells + ; \ field per cell witch points to a type struct |
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: >rrom 7 cells + ; \ a -1 indicates that this region is rom |
: >rlink 3 cells + ; |
: >rlink 3 cells + ; |
: >rdp 2 cells + ; |
: >rdp 2 cells + ; |
: >rlen cell+ ; |
: >rlen cell+ ; |
Line 1258 Variable mirrored-link \ linked
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Line 1278 Variable mirrored-link \ linked
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>r r@ last-defined-region ! |
>r r@ last-defined-region ! |
r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; |
r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; |
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: region ( addr len -- ) |
: region ( addr len -- "name" ) |
\G create a new region |
\G create a new region |
\ check whether predefined region exists |
\ check whether predefined region exists |
save-input bl word find >r >r restore-input throw r> r> 0= |
save-input bl word find >r >r restore-input throw r> r> 0= |
Line 1267 Variable mirrored-link \ linked
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Line 1287 Variable mirrored-link \ linked
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save-input create restore-input throw |
save-input create restore-input throw |
here last-defined-region ! |
here last-defined-region ! |
over ( startaddr ) , ( length ) , ( dp ) , |
over ( startaddr ) , ( length ) , ( dp ) , |
region-link linked 0 , 0 , 0 , bl word count string, |
region-link linked 0 , 0 , 0 , 0 , bl word count string, |
ELSE \ store new parameters in region |
ELSE \ store new parameters in region |
bl word drop |
bl word drop |
>body (region) |
>body (region) |
Line 1285 Variable mirrored-link \ linked
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Line 1305 Variable mirrored-link \ linked
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\G returns the total area |
\G returns the total area |
dup >rstart @ swap >rlen @ ; |
dup >rstart @ swap >rlen @ ; |
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: mirrored |
: mirrored ( -- ) |
\G mark a region as mirrored |
\G mark last defined region as mirrored |
mirrored-link |
mirrored-link |
align linked last-defined-region @ , ; |
align linked last-defined-region @ , ; |
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: writeprotected |
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\G mark a region as write protected |
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-1 last-defined-region @ >rrom ! ; |
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: .addr ( u -- ) |
: .addr ( u -- ) |
\G prints a 16 or 32 Bit nice hex value |
\G prints a 16 or 32 Bit nice hex value |
base @ >r hex |
base @ >r hex |
Line 1417 variable sromdp \ start of rom-area for
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Line 1441 variable sromdp \ start of rom-area for
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[THEN] |
[THEN] |
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0 Value current-region |
0 value tdp |
0 Value tdp |
variable fixed \ flag: true: no automatic switching |
Variable fixed \ flag: true: no automatic switching |
\ false: switching is done automatically |
\ false: switching is done automatically |
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\ Switch-Policy: |
\ Switch-Policy: |
Line 1434 variable constflag constflag off
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Line 1458 variable constflag constflag off
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: activate ( region -- ) |
: activate ( region -- ) |
\G next code goes to this region |
\G next code goes to this region |
>rdp to tdp ; |
dup to current-region >rdp to tdp ; |
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: (switchram) |
: (switchram) |
fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT |
fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT |
Line 1528 bigendian
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Line 1552 bigendian
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2drop 0 ; |
2drop 0 ; |
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: taddr>region-abort ( taddr -- region | 0 ) |
: taddr>region-abort ( taddr -- region | 0 ) |
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\G Same as taddr>region but aborts if taddr is not |
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\G a valid address in the target address space |
dup taddr>region dup 0= |
dup taddr>region dup 0= |
IF drop cr ." Wrong address: " .addr |
IF drop cr ." Wrong address: " .addr |
-1 ABORT" Address out of range!" |
-1 ABORT" Address out of range!" |
Line 1543 bigendian
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Line 1569 bigendian
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\ add regions real address in our memory |
\ add regions real address in our memory |
r> >rmem @ + ; |
r> >rmem @ + ; |
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: (>regionramimage) ( taddr -- 'taddr ) |
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\G same as (>regionimage) but aborts if the region is rom |
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dup |
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\ find region we want to address |
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taddr>region-abort |
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>r |
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r@ >rrom @ ABORT" CROSS: region is write-protected!" |
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\ calculate offset in region |
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r@ >rstart @ - |
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\ add regions real address in our memory |
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r> >rmem @ + ; |
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: (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) |
: (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) |
dup |
dup |
\ find region we want to address |
\ find region we want to address |
Line 1591 CREATE Bittable 80 c, 40 c, 20 c, 10 c,
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Line 1629 CREATE Bittable 80 c, 40 c, 20 c, 10 c,
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: (>image) ( taddr -- absaddr ) image @ + ; |
: (>image) ( taddr -- absaddr ) image @ + ; |
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DEFER >image |
DEFER >image |
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DEFER >ramimage |
DEFER relon |
DEFER relon |
DEFER reloff |
DEFER reloff |
DEFER correcter |
DEFER correcter |
Line 1600 T has? relocate H
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Line 1639 T has? relocate H
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' (relon) IS relon |
' (relon) IS relon |
' (reloff) IS reloff |
' (reloff) IS reloff |
' (>regionimage) IS >image |
' (>regionimage) IS >image |
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' (>regionimage) IS >ramimage |
[ELSE] |
[ELSE] |
' drop IS relon |
' drop IS relon |
' drop IS reloff |
' drop IS reloff |
' (>regionimage) IS >image |
' (>regionimage) IS >image |
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' (>regionimage) IS >ramimage |
[THEN] |
[THEN] |
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: enforce-writeprotection ( -- ) |
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['] (>regionramimage) IS >ramimage ; |
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: relax-writeprotection ( -- ) |
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['] (>regionimage) IS >ramimage ; |
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: writeprotection-relaxed? ( -- ) |
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['] >ramimage >body @ ['] (>regionimage) = ; |
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\ Target memory access 06oct92py |
\ Target memory access 06oct92py |
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: align+ ( taddr -- rest ) |
: align+ ( taddr -- rest ) |
Line 1623 T has? relocate H
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Line 1673 T has? relocate H
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dup cfalign+ + ; |
dup cfalign+ + ; |
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: @ ( taddr -- w ) >image S@ ; |
: @ ( taddr -- w ) >image S@ ; |
: ! ( w taddr -- ) >image S! ; |
: ! ( w taddr -- ) >ramimage S! ; |
: c@ ( taddr -- char ) >image Sc@ ; |
: c@ ( taddr -- char ) >image Sc@ ; |
: c! ( char taddr -- ) >image Sc! ; |
: c! ( char taddr -- ) >ramimage Sc! ; |
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; |
: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; |
: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; |
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Line 1654 Ghost (loop) Ghost (+loop)
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Line 1704 Ghost (loop) Ghost (+loop)
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Ghost (next) drop |
Ghost (next) drop |
Ghost (does>) Ghost (compile) 2drop |
Ghost (does>) Ghost (compile) 2drop |
Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop |
Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop |
Ghost (C") drop |
Ghost (C") Ghost c(abort") Ghost type 2drop drop |
Ghost ' drop |
Ghost ' drop |
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\ user ghosts |
\ user ghosts |
Line 1683 Ghost state drop
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Line 1733 Ghost state drop
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: ht-string, ( addr count -- ) |
: ht-string, ( addr count -- ) |
dup there swap last-string 2! |
dup there swap last-string 2! |
dup T c, H bounds ?DO I c@ T c, H LOOP ; |
dup T c, H bounds ?DO I c@ T c, H LOOP ; |
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: ht-mem, ( addr count ) |
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bounds ?DO I c@ T c, H LOOP ; |
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>TARGET |
>TARGET |
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Line 1830 Defer resolve-warning
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Line 1882 Defer resolve-warning
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0 Value resolved |
0 Value resolved |
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: resolve ( ghost tcfa -- ) |
: resolve-forward-references ( ghost resolve-list -- ) |
\G resolve referencies to ghost with tcfa |
\ loop through forward referencies |
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comp-state @ >r Resolving comp-state ! |
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over >link @ resolve-loop |
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r> comp-state ! |
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['] noop IS resolve-warning ; |
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: (resolve) ( ghost tcfa -- ghost resolve-list ) |
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\ check for a valid address, it is a primitive reference |
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\ otherwise |
dup taddr>region 0<> IF |
dup taddr>region 0<> IF |
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\ define this address in the region address type table |
2dup (>regiontype) define-addr-struct addr-xt-ghost |
2dup (>regiontype) define-addr-struct addr-xt-ghost |
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\ we define new address only if empty |
\ we define new address only if empty |
\ this is for not to take over the alias ghost |
\ this is for not to take over the alias ghost |
\ (different ghost, but identical xt) |
\ (different ghost, but identical xt) |
\ but the very first that really defines it |
\ but the very first that really defines it |
dup @ 0= IF ! ELSE 2drop THEN |
dup @ 0= IF ! ELSE 2drop THEN |
THEN |
THEN |
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swap >r |
\ is ghost resolved?, second resolve means another |
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\ definition with the same name |
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over undefined? 0= IF exists EXIT THEN |
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\ get linked-list |
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swap >r r@ >link @ swap \ ( list tcfa R: ghost ) |
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\ mark ghost as resolved |
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dup r@ >link ! <res> r@ >magic ! |
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r@ to resolved |
r@ to resolved |
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\ r@ >comp @ ['] is-forward = |
\ r@ >comp @ ['] is-forward = |
Line 1858 Defer resolve-warning
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Line 1913 Defer resolve-warning
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\ if this is not right something must be set before |
\ if this is not right something must be set before |
\ calling resolve |
\ calling resolve |
r@ >comp @ ['] is-forward = IF |
r@ >comp @ ['] is-forward = IF |
['] colon-resolved r@ >comp ! |
['] colon-resolved r@ >comp ! |
THEN |
THEN |
\ loop through forward referencies |
r@ >link @ swap \ ( list tcfa R: ghost ) |
r> -rot |
\ mark ghost as resolved |
comp-state @ >r Resolving comp-state ! |
r@ >link ! <res> r@ >magic ! |
resolve-loop |
r> swap ; |
r> comp-state ! |
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['] noop IS resolve-warning |
: resolve ( ghost tcfa -- ) |
; |
\G resolve referencies to ghost with tcfa |
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\ is ghost resolved?, second resolve means another |
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\ definition with the same name |
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over undefined? 0= IF exists EXIT THEN |
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(resolve) |
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( ghost resolve-list ) |
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resolve-forward-references ; |
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: resolve-noforwards ( ghost tcfa -- ) |
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\G Same as resolve but complain if there are any |
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\G forward references on this ghost |
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\ is ghost resolved?, second resolve means another |
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\ definition with the same name |
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over undefined? 0= IF exists EXIT THEN |
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(resolve) |
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IF cr ." No forward references allowed on: " .ghost cr |
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-1 ABORT" Illegal forward reference" |
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THEN |
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drop ; |
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\ gexecute ghost, 01nov92py |
\ gexecute ghost, 01nov92py |
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Line 2128 Defer setup-execution-semantics
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Line 2200 Defer setup-execution-semantics
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\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! |
\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! |
HeaderGhost |
HeaderGhost |
\ output symbol table to extra file |
\ output symbol table to extra file |
[ [IFDEF] fd-symbol-table ] |
dup >ghostname there symentry |
base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! |
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s" :" fd-symbol-table write-file throw |
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dup >ghostname fd-symbol-table write-line throw |
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[ [THEN] ] |
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dup Last-Header-Ghost ! dup to lastghost |
dup Last-Header-Ghost ! dup to lastghost |
dup >magic ^imm ! \ a pointer for immediate |
dup >magic ^imm ! \ a pointer for immediate |
alias-mask flag! |
alias-mask flag! |
Line 2188 Defer setup-prim-semantics
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Line 2256 Defer setup-prim-semantics
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: mapprim: ( "forthname" "asmlabel" -- ) |
: mapprim: ( "forthname" "asmlabel" -- ) |
-1 aprim-nr +! aprim-nr @ |
-1 aprim-nr +! aprim-nr @ |
Ghost tuck swap resolve <do:> swap tuck >magic ! |
Ghost tuck swap resolve-noforwards <do:> swap tuck >magic ! |
asmprimname, ; |
asmprimname, ; |
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: Doer: ( cfa -- ) \ name |
: Doer: ( cfa -- ) \ name |
Line 2198 Defer setup-prim-semantics
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Line 2266 Defer setup-prim-semantics
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.sourcepos ." needs doer: " >in @ bl word count type >in ! cr |
.sourcepos ." needs doer: " >in @ bl word count type >in ! cr |
THEN |
THEN |
Ghost |
Ghost |
tuck swap resolve <do:> swap >magic ! ; |
tuck swap resolve-noforwards <do:> swap >magic ! ; |
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Variable prim# |
Variable prim# |
: first-primitive ( n -- ) prim# ! ; |
: first-primitive ( n -- ) prim# ! ; |
Line 2211 Variable prim#
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Line 2279 Variable prim#
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prim# @ (THeader ( S xt ghost ) |
prim# @ (THeader ( S xt ghost ) |
['] prim-resolved over >comp ! |
['] prim-resolved over >comp ! |
dup >ghost-flags <primitive> set-flag |
dup >ghost-flags <primitive> set-flag |
over resolve T A, H alias-mask flag! |
over resolve-noforwards T A, H alias-mask flag! |
-1 prim# +! ; |
-1 prim# +! ; |
>CROSS |
>CROSS |
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Line 2333 Defer (end-code)
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Line 2401 Defer (end-code)
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defempty? |
defempty? |
(THeader ( ghost ) |
(THeader ( ghost ) |
['] prim-resolved over >comp ! |
['] prim-resolved over >comp ! |
there resolve |
there resolve-noforwards |
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[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] |
[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] |
doprim, |
doprim, |
Line 2345 Defer (end-code)
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Line 2413 Defer (end-code)
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: Code: |
: Code: |
defempty? |
defempty? |
Ghost >r |
Ghost >r |
r@ there ca>native resolve |
r@ >ghostname there symentry |
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r@ there ca>native resolve-noforwards |
<do:> r@ >magic ! |
<do:> r@ >magic ! |
r> drop |
r> drop |
depth (code) ; |
depth (code) ; |
Line 2375 Cond: chars ;Cond
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Line 2444 Cond: chars ;Cond
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\ some special literals 27jan97jaw |
\ some special literals 27jan97jaw |
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\ !! Known Bug: Special Literals and plug-ins work only correct |
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\ on 16 and 32 Bit Targets and 32 Bit Hosts! |
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\ This section could be done with dlit, now. But first I need |
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\ some test code JAW |
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Cond: MAXU |
Cond: MAXU |
tcell 1 cells u> |
-1 s>d dlit, |
IF compile lit tcell 0 ?DO FF T c, H LOOP |
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ELSE ffffffff lit, THEN |
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;Cond |
;Cond |
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tcell 2 = tcell 4 = or tcell 8 = or 0= |
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[IF] |
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.( Warning: MINI and MAXI may not work with this host) cr |
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[THEN] |
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Cond: MINI |
Cond: MINI |
tcell 1 cells u> |
tcell 2 = IF $8000 ELSE $80000000 THEN 0 |
IF compile lit bigendian |
tcell 8 = IF swap THEN dlit, |
IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP |
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ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H |
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THEN |
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ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN |
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;Cond |
;Cond |
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Cond: MAXI |
Cond: MAXI |
tcell 1 cells u> |
tcell 2 = IF $7fff ELSE $7fffffff THEN 0 |
IF compile lit bigendian |
tcell 8 = IF drop -1 swap THEN dlit, |
IF 7F T c, H tcell 1 ?DO FF T c, H LOOP |
;Cond |
ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H |
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THEN |
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ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN |
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;Cond |
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>CROSS |
>CROSS |
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Line 2873 compile: does-resolved ;compile
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Line 2931 compile: does-resolved ;compile
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: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw |
: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw |
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: >resolve ( sys -- ) |
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X here ( dup ." >" hex. ) over branchoffset swap X ! ; |
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: <resolve ( sys -- ) |
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X here ( dup ." <" hex. ) branchoffset X , ; |
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:noname compile branch X here branchoffset X , ; |
:noname compile branch X here branchoffset X , ; |
IS branch, ( target-addr -- ) |
IS branch, ( target-addr -- ) |
:noname compile ?branch X here branchoffset X , ; |
:noname compile ?branch X here branchoffset X , ; |
Line 2905 compile: does-resolved ;compile
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Line 2957 compile: does-resolved ;compile
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Variable tleavings 0 tleavings ! |
Variable tleavings 0 tleavings ! |
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: (done) ( addr -- ) |
: (done) ( do-addr -- ) |
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\G resolve branches of leave and ?leave and ?do |
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\G do-addr is the address of the beginning of our |
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\G loop so we can take care of nested loops |
tleavings @ |
tleavings @ |
BEGIN dup |
BEGIN dup |
WHILE |
WHILE |
Line 2955 Cond: ?LEAVE ?leave, ;Cond
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Line 3010 Cond: ?LEAVE ?leave, ;Cond
|
0 DO dup @ swap 1 cells - LOOP |
0 DO dup @ swap 1 cells - LOOP |
free throw ; |
free throw ; |
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: loop] branchto, dup <resolve tcell - (done) ; |
: loop] ( target-addr -- ) |
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branchto, |
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dup X here branchoffset X , |
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tcell - (done) ; |
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: skiploop] ?dup IF branchto, branchtoresolve, THEN ; |
: skiploop] ?dup IF branchto, branchtoresolve, THEN ; |
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Line 3059 Cond: LOOP 1 ncontrols? loop, ;Cond
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Line 3117 Cond: LOOP 1 ncontrols? loop, ;Cond
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Cond: +LOOP 1 ncontrols? +loop, ;Cond |
Cond: +LOOP 1 ncontrols? +loop, ;Cond |
Cond: NEXT 1 ncontrols? next, ;Cond |
Cond: NEXT 1 ncontrols? next, ;Cond |
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\ Absoulte branches 26sep02jaw |
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\ This section defined different semantics for |
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\ conditionals, using and compiling absolute branches |
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X has? abranch [IF] |
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Ghost abranch drop |
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Ghost a?branch drop |
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Ghost a(?do) drop |
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Ghost a(do) drop |
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Ghost a(next) drop |
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Ghost a(+loop) drop |
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Ghost a(loop) drop |
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:noname compile abranch X a, ; plugin-of branch, |
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:noname compile a?branch X a, ; plugin-of ?branch, |
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:noname compile abranch T here 0 a, H ; plugin-of branchmark, |
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:noname compile a?branch T here 0 a, H ; plugin-of ?branchmark, |
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:noname |
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dup X @ ABORT" CROSS: branch already resolved" |
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X here swap X a! ; plugin-of branchtoresolve, |
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:noname |
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0 compile a(?do) ?domark, (leave) |
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branchtomark, 2 to1 ; plugin-of ?do, |
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: aloop] ( target-addr -- ) |
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branchto, |
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dup X a, |
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tcell - (done) ; |
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:noname |
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1to compile a(loop) aloop] |
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compile unloop skiploop] ; plugin-of loop, |
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:noname |
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1to compile a(+loop) aloop] |
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compile unloop skiploop] ; plugin-of +loop, |
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:noname |
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compile a(next) aloop] compile unloop ; plugin-of next, |
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[THEN] |
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\ String words 23feb93py |
\ String words 23feb93py |
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: ," [char] " parse ht-string, X align ; |
: ," [char] " parse ht-string, X align ; |
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X has? control-rack [IF] |
Cond: ." compile (.") T ," H ;Cond |
Cond: ." compile (.") T ," H ;Cond |
Cond: S" compile (S") T ," H ;Cond |
Cond: S" compile (S") T ," H ;Cond |
Cond: C" compile (C") T ," H ;Cond |
Cond: C" compile (C") T ," H ;Cond |
Cond: ABORT" compile (ABORT") T ," H ;Cond |
Cond: ABORT" compile (ABORT") T ," H ;Cond |
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[ELSE] |
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Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align |
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>r then, r> compile ALiteral compile Literal compile type ;Cond |
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Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align |
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>r then, r> compile ALiteral compile Literal ;Cond |
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Cond: C" ahead, there [char] " parse ht-string, X align |
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>r then, r> compile ALiteral ;Cond |
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Cond: ABORT" if, ahead, there [char] " parse ht-string, X align |
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>r then, r> compile ALiteral compile c(abort") then, ;Cond |
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[THEN] |
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Cond: IS T ' >body H compile ALiteral compile ! ;Cond |
Cond: IS T ' >body H compile ALiteral compile ! ;Cond |
: IS T >address ' >body ! H ; |
: IS T >address ' >body ! H ; |
Line 3111 Cond: postpone ( -- ) \ name
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Line 3229 Cond: postpone ( -- ) \ name
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hex |
hex |
|
|
>CROSS |
>CROSS |
Create magic s" Gforth2x" here over allot swap move |
Create magic s" Gforth3x" here over allot swap move |
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bigendian 1+ \ strangely, in magic big=0, little=1 |
bigendian 1+ \ strangely, in magic big=0, little=1 |
tcell 1 = 0 and or |
tcell 1 = 0 and or |
Line 3300 Variable outfile-fd
|
Line 3418 Variable outfile-fd
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dup @ dup IF addr-refs @ THEN |
dup @ dup IF addr-refs @ THEN |
swap >r |
swap >r |
over align+ tuck tcell swap - rshift swap 0 |
over align+ tuck tcell swap - rshift swap 0 |
DO dup 1 and |
?DO dup 1 and |
IF drop rdrop snl-calc UNLOOP EXIT THEN |
IF drop rdrop snl-calc UNLOOP EXIT THEN |
2/ swap 1+ swap |
2/ swap 1+ swap |
LOOP |
LOOP |
Line 3387 Create parsed 20 chars allot \ store wor
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Line 3505 Create parsed 20 chars allot \ store wor
|
1 BEGIN |
1 BEGIN |
BEGIN bl word count dup WHILE |
BEGIN bl word count dup WHILE |
comment? 20 umin parsed place upcase parsed count |
comment? 20 umin parsed place upcase parsed count |
2dup s" [IF]" compare 0= >r |
2dup s" [IF]" str= >r |
2dup s" [IFUNDEF]" compare 0= >r |
2dup s" [IFUNDEF]" str= >r |
2dup s" [IFDEF]" compare 0= r> or r> or |
2dup s" [IFDEF]" str= r> or r> or |
IF 2drop 1+ |
IF 2drop 1+ |
ELSE 2dup s" [ELSE]" compare 0= |
ELSE 2dup s" [ELSE]" str= |
IF 2drop 1- dup |
IF 2drop 1- dup |
IF 1+ |
IF 1+ |
THEN |
THEN |
ELSE |
ELSE |
2dup s" [ENDIF]" compare 0= >r |
2dup s" [ENDIF]" str= >r |
s" [THEN]" compare 0= r> or |
s" [THEN]" str= r> or |
IF 1- THEN |
IF 1- THEN |
THEN |
THEN |
THEN |
THEN |
Line 3445 Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
|
Line 3563 Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
|
IF >in ! X : |
IF >in ! X : |
ELSE drop |
ELSE drop |
BEGIN bl word dup c@ |
BEGIN bl word dup c@ |
IF count comment? s" ;" compare 0= ?EXIT |
IF count comment? s" ;" str= ?EXIT |
ELSE refill 0= ABORT" CROSS: Out of Input while C:" |
ELSE refill 0= ABORT" CROSS: Out of Input while C:" |
THEN |
THEN |
AGAIN |
AGAIN |
Line 3453 Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
|
Line 3571 Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
|
|
|
: d? d? ; |
: d? d? ; |
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|
|
: \D ( -- "debugswitch" ) |
\G doesn't skip line when debug switch is on |
\G doesn't skip line when debug switch is on |
: \D D? 0= IF postpone \ THEN ; |
D? 0= IF postpone \ THEN ; |
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|
|
: \- ( -- "wordname" ) |
\G interprets the line if word is not defined |
\G interprets the line if word is not defined |
: \- tdefined? IF postpone \ THEN ; |
tdefined? IF postpone \ THEN ; |
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|
|
: \+ ( -- "wordname" ) |
\G interprets the line if word is defined |
\G interprets the line if word is defined |
: \+ tdefined? 0= IF postpone \ THEN ; |
tdefined? 0= IF postpone \ THEN ; |
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|
|
: \? ( -- "envorinstring" ) |
|
\G Skip line if environmental variable evaluates to false |
|
X has? 0= IF postpone \ THEN ; |
|
|
Cond: \- \- ;Cond |
Cond: \- \- ;Cond |
Cond: \+ \+ ;Cond |
Cond: \+ \+ ;Cond |
Cond: \D \D ;Cond |
Cond: \D \D ;Cond |
|
Cond: \? \? ;Cond |
|
|
: ?? bl word find IF execute ELSE drop 0 THEN ; |
: ?? bl word find IF execute ELSE drop 0 THEN ; |
|
|
Line 3533 previous
|
Line 3659 previous
|
: rot rot ; |
: rot rot ; |
: drop drop ; |
: drop drop ; |
: = = ; |
: = = ; |
|
: <> <> ; |
: 0= 0= ; |
: 0= 0= ; |
: lshift lshift ; |
: lshift lshift ; |
: 2/ 2/ ; |
: 2/ 2/ ; |
Line 3570 previous
|
Line 3697 previous
|
: doc-on true to-doc ! ; |
: doc-on true to-doc ! ; |
|
|
: declareunique ( "name" -- ) |
: declareunique ( "name" -- ) |
\G Sets the unique flag for a ghost. The assembler output |
\ Sets the unique flag for a ghost. The assembler output |
\G generates labels with the ghostname concatenated with the address |
\ generates labels with the ghostname concatenated with the address |
\G while cross-compiling. The address is concatenated |
\ while cross-compiling. The address is concatenated |
\G because we have double occurences of the same name. |
\ because we have double occurences of the same name. |
\G If we want to reference the labels from the assembler or C |
\ If we want to reference the labels from the assembler or C |
\G code we declare them unique, so the address is skipped. |
\ code we declare them unique, so the address is skipped. |
Ghost >ghost-flags dup @ <unique> or swap ! ; |
Ghost >ghost-flags dup @ <unique> or swap ! ; |
|
|
\ [IFDEF] dbg : dbg dbg ; [THEN] |
\ [IFDEF] dbg : dbg dbg ; [THEN] |
Line 3587 previous
|
Line 3714 previous
|
\ : words also ghosts |
\ : words also ghosts |
\ words previous ; |
\ words previous ; |
: .s .s ; |
: .s .s ; |
|
: depth depth ; |
: bye bye ; |
: bye bye ; |
|
|
\ dummy |
\ dummy |