summaryrefslogtreecommitdiffstats
path: root/qemu/roms/SLOF/slof/engine.in
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/SLOF/slof/engine.in')
-rw-r--r--qemu/roms/SLOF/slof/engine.in542
1 files changed, 0 insertions, 542 deletions
diff --git a/qemu/roms/SLOF/slof/engine.in b/qemu/roms/SLOF/slof/engine.in
deleted file mode 100644
index 0344a38e3..000000000
--- a/qemu/roms/SLOF/slof/engine.in
+++ /dev/null
@@ -1,542 +0,0 @@
-/******************************************************************************
- * Copyright (c) 2004, 2008 IBM Corporation
- * All rights reserved.
- * This program and the accompanying materials
- * are made available under the terms of the BSD License
- * which accompanies this distribution, and is available at
- * http://www.opensource.org/licenses/bsd-license.php
- *
- * Contributors:
- * IBM Corporation - initial implementation
- *****************************************************************************/
-// ============================================================================
-// ============================================================================
-
-
-//
-// Copyright 2002,2003,2004 Segher Boessenkool <segher@kernel.crashing.org>
-//
-
-// This is the core engine of Paflof. It is almost ANS Forth compatible.
-// There are two possibilities why an aspect would not be:
-// a) Open Firmware requires different semantics;
-// b) bugs.
-// Most of the "extended" semantics defined in the OF specification are
-// not implemented; just the bare essentials. For example, you can't
-// use structural words (IF, THEN, BEGIN, etc.) or return-stack
-// manipulation words (R> etc.) in the interpreter.
-
-// The data stack pointer.
-raw(HERE DOVAL _A(the_mem))
-
-// Some common constant numbers; smaller and faster if they are defined
-// as constants, than when inlined as a literal.
-con(-1 -1)
-con(0 0)
-con(1 1)
-con(2 2)
-con(3 3)
-con(4 4)
-con(8 8)
-con(H#10 0x10)
-con(H#20 0x20)
-con(H#FF 0xff)
-con(H#FFFF 0xffff)
-con(H#FFFFFFFF 0xffffffff)
-con(D#10 0x0a)
-
-
-// Manipulating different kinds of addresses.
-con(/C 1)
-con(/W 2)
-con(/L 4)
-con(/X 8)
-con(/N CELLSIZE)
-con(CELL CELLSIZE)
-col(/C* /C *)
-col(/W* /W *)
-col(/L* /L *)
-col(/X* /X *)
-col(/N* /N *)
-col(CA+ /C* +)
-col(WA+ /W* +)
-col(LA+ /L* +)
-col(XA+ /X* +)
-col(NA+ /N* +)
-col(CA1+ /C +)
-col(WA1+ /W +)
-col(LA1+ /L +)
-col(XA1+ /X +)
-col(NA1+ /N +)
-col(CHAR+ CA1+)
-col(CELL+ NA1+)
-col(CHAR- /C -)
-col(CELL- /N -)
-col(CHARS /C*)
-col(CELLS /N*)
-col(CHARS+ CA+)
-col(CELLS+ NA+)
-
-
-// Run-time words for TO and for string literals.
-col(DOTO R> CELL+ DUP >R @ CELL+ !)
-col(SLITERAL R> CELL+ DUP DUP C@ + LIT(-CELLSIZE) AND >R)
-
-
-// Stack manipulation.
-col(?DUP DUP 0BRANCH(1) DUP)
-col(TUCK SWAP OVER)
-col(2DUP OVER OVER)
-col(3DUP 2 PICK 2 PICK 2 PICK)
-col(2OVER 3 PICK 3 PICK)
-col(2DROP DROP DROP)
-col(3DROP DROP DROP DROP)
-col(NIP SWAP DROP)
-col(CLEAR 0 DEPTH!)
-col(ROT >R SWAP R> SWAP)
-col(-ROT SWAP >R SWAP R>)
-col(2SWAP >R -ROT R> -ROT)
-col(2ROT >R >R 2SWAP R> R> 2SWAP)
-col(ROLL DUP ?DUP 0BRANCH(6) ROT >R 1 - BRANCH(-9) ?DUP 0BRANCH(6) R> -ROT 1 - BRANCH(-9))
-col(-ROLL DUP ?DUP 0BRANCH(9) >R ROT R> SWAP >R 1 - BRANCH(-12) ?DUP 0BRANCH(6) R> SWAP 1 - BRANCH(-9))
-col(2>R R> ROT >R SWAP >R >R)
-col(2R> R> R> R> ROT >R SWAP)
-col(2R@ R> R> R@ OVER >R ROT >R SWAP)
-cod(?PICK)
-
-// Arithmetic.
-col(2* 1 LSHIFT)
-col(U2/ 1 RSHIFT)
-col(2/ 1 ASHIFT)
-col(<< LSHIFT)
-col(>> RSHIFT)
-col(>>A ASHIFT)
-col(INVERT -1 XOR)
-col(NOT INVERT)
-
-
-// Booleans.
-con(TRUE -1)
-con(FALSE 0)
-
-
-// Comparisons.
-col(> SWAP <)
-col(U> SWAP U<)
-col(<= > 0=)
-col(<> = 0=)
-col(>= < 0=)
-col(0<= 0 <=)
-col(0<> 0 <>)
-col(0> 0 >)
-col(0>= 0 >=)
-col(U<= U> 0=)
-col(U>= U< 0=)
-col(WITHIN ROT DUP ROT >= 0BRANCH(3) 2DROP FALSE EXIT > 0BRANCH(2) FALSE EXIT TRUE)
-col(BETWEEN 1 + WITHIN)
-
-// Double-cell single-bit shifts.
-col(D2* 2* OVER 0< - >R 2* R>)
-col(UD2/ >R U2/ R@ LIT(8*CELLSIZE-1) LSHIFT OR R> U2/)
-col(D2/ >R U2/ R@ LIT(8*CELLSIZE-1) LSHIFT OR R> 2/)
-
-
-// More arithmetic.
-col(NEGATE 0 SWAP -)
-col(ABS DUP 0< 0BRANCH(1) NEGATE)
-col(MAX 2DUP < 0BRANCH(1) SWAP DROP)
-col(MIN 2DUP > 0BRANCH(1) SWAP DROP)
-col(U* *)
-col(1+ 1 +)
-col(1- 1 -)
-col(2+ 2 +)
-col(2- 2 -)
-col(EVEN 1+ -1 AND)
-col(BOUNDS OVER + SWAP)
-
-
-// Double-cell and mixed-size arithmetic.
-col(S>D DUP 0<)
-col(DNEGATE INVERT >R NEGATE DUP 0= R> SWAP -)
-col(DABS DUP 0< 0BRANCH(1) DNEGATE)
-col(M+ SWAP >R DUP >R + DUP R> U< R> SWAP -)
-col(D+ >R M+ R> +)
-col(D- DNEGATE D+)
-col(*' >R DUP 0< >R D2* R> 0BRANCH(2) R@ M+ R>)
-col(UM* 0 -ROT LIT(8*CELLSIZE) 0 DODO *' DOLOOP(-3) DROP)
-col(M* 2DUP XOR >R >R ABS R> ABS UM* R> 0< 0BRANCH(1) DNEGATE)
-col(/' >R DUP 0< >R D2* R> OVER R@ U>= OR 0BRANCH(6) >R 1 OR R> R@ - R>)
-col(UM/MOD LIT(8*CELLSIZE) 0 DODO /' DOLOOP(-3) DROP SWAP)
-col(SM/REM OVER >R >R DABS R@ ABS UM/MOD R> 0< 0BRANCH(1) NEGATE R> 0< 0BRANCH(4) NEGATE SWAP NEGATE SWAP)
-col(FM/MOD DUP >R 2DUP XOR 0< >R SM/REM OVER 0<> R> AND 0BRANCH(6) 1- SWAP R> + SWAP EXIT R> DROP)
-
-
-// Division.
-col(U/MOD 0 SWAP UM/MOD)
-col(/MOD >R S>D R> FM/MOD)
-col(/ /MOD NIP)
-col(MOD /MOD DROP)
-col(*/MOD >R M* R> FM/MOD)
-col(*/ */MOD NIP)
-
-
-// Splitting, joining, flipping the components of a number.
-col(WBSPLIT DUP H#FF AND SWAP 8 RSHIFT)
-col(LWSPLIT DUP H#FFFF AND SWAP H#10 RSHIFT)
-col(XLSPLIT DUP H#FFFFFFFF AND SWAP H#20 RSHIFT)
-col(LBSPLIT LWSPLIT >R WBSPLIT R> WBSPLIT)
-col(XWSPLIT XLSPLIT >R LWSPLIT R> LWSPLIT)
-col(XBSPLIT XLSPLIT >R LBSPLIT R> LBSPLIT)
-col(BWJOIN 8 LSHIFT OR)
-col(WLJOIN H#10 LSHIFT OR)
-col(BLJOIN BWJOIN >R BWJOIN R> WLJOIN)
-col(WBFLIP WBSPLIT SWAP BWJOIN)
-col(LWFLIP LWSPLIT SWAP WLJOIN)
-col(LXJOIN H#20 LSHIFT OR)
-col(XLFLIP XLSPLIT SWAP LXJOIN)
-col(LBFLIP LBSPLIT SWAP 2SWAP SWAP BLJOIN)
-col(WXJOIN WLJOIN >R WLJOIN R> LXJOIN)
-col(XWFLIP XWSPLIT SWAP 2SWAP SWAP WXJOIN)
-col(BXJOIN BLJOIN >R BLJOIN R> LXJOIN)
-col(XBFLIP XLSPLIT LBFLIP SWAP LBFLIP LXJOIN)
-
-// Aligning to cell size.
-col(ALIGNED /N 1- + /N NEGATE AND)
-
-
-// Counted loop stuff.
-col(I R> R@ SWAP >R)
-col(J R> R> R> R@ SWAP >R SWAP >R SWAP >R)
-col(UNLOOP R> R> R> 2DROP >R)
-
-
-// Memory accesses.
-col(+! TUCK @ + SWAP !)
-cod(COMP)
-col(OFF FALSE SWAP !)
-col(ON TRUE SWAP !)
-col(<W@ W@ DUP LIT(0x8000) >= 0BRANCH(3) LIT(0x10000) -)
-col(2@ DUP CELL+ @ SWAP @)
-col(2! DUP >R ! R> CELL+ !)
-col(WBFLIPS BOUNDS DO?DO(8) I W@ WBFLIP I W! /W DO+LOOP(-8))
-col(LWFLIPS BOUNDS DO?DO(8) I L@ LWFLIP I L! /L DO+LOOP(-8))
-col(LBFLIPS BOUNDS DO?DO(8) I L@ LBFLIP I L! /L DO+LOOP(-8))
-col(XBFLIPS BOUNDS DO?DO(8) I X@ XBFLIP I X! /X DO+LOOP(-8))
-col(XWFLIPS BOUNDS DO?DO(8) I X@ XWFLIP I X! /X DO+LOOP(-8))
-col(XLFLIPS BOUNDS DO?DO(8) I X@ XLFLIP I X! /X DO+LOOP(-8))
-cod(FILL)
-col(BLANK LIT(0x20) FILL)
-col(ERASE LIT(0x00) FILL)
-
-
-// Exception handling.
-var(CATCHER 0)
-var(ABORT"-STR 0)
-col(CATCH DEPTH >R CATCHER @ >R RDEPTH CATCHER ! EXECUTE R> CATCHER ! R> DROP 0)
-col(THROW ?DUP 0BRANCH(12) CATCHER @ RDEPTH! R> CATCHER ! R> SWAP >R DEPTH! DROP R>)
-col(ABORT -1 THROW)
-
-
-// Text input.
-var(#TIB TIBSIZE)
-val(IB 0)
-var(#IB 0)
-val(SOURCE-ID 0)
-col(SOURCE IB #IB @)
-var(>IN 0)
-col(TERMINAL TIB DOTO IB #TIB @ #IB ! 0 DOTO SOURCE-ID)
-
-
-// ASCII codes.
-con(BL 0x20)
-con(BELL 7)
-con(BS 8)
-con(CARRET 0x0d)
-con(LINEFEED 0x0a)
-
-
-// Text output.
-dfr(EMIT)
-dfr(CR)
-col(TYPE BOUNDS DO?DO(5) I C@ EMIT DOLOOP(-5))
-col(LL-CR CARRET EMIT LINEFEED EMIT)
-col(SPACE BL EMIT)
-col(SPACES 0 DO?DO(3) SPACE DOLOOP(-3))
-
-
-// Text manipulation.
-col(COUNT DUP CHAR+ SWAP C@)
-col(PACK DUP >R 1+ SWAP DUP R@ C! MOVE R>)
-col(UPC DUP LIT('a') LIT('z') BETWEEN 0BRANCH(3) LIT(0x20) - )
-col(LCC DUP LIT('A') LIT('Z') BETWEEN 0BRANCH(3) LIT(0x20) + )
-
-
-// Text input.
-dfr(KEY)
-dfr(KEY?)
-dfr(ACCEPT)
-var(SPAN 0)
-col(EXPECT ACCEPT SPAN !)
-col(REFILL SOURCE-ID 0= 0BRANCH(7) SOURCE EXPECT 0 >IN ! TRUE EXIT SOURCE-ID -1 = 0BRANCH(2) FALSE EXIT LIT(0x6502) THROW)
-
-
-// Number base.
-var(BASE 16)
-col(DECIMAL D#10 BASE !)
-col(HEX H#10 BASE !)
-col(OCTAL 8 BASE !)
-
-
-// Pictured numeric output.
-col(PAD HERE LIT(256) +)
-col(TODIGIT DUP LIT(9) > 0BRANCH(3) LIT(0x27) + LIT(0x30) +)
-col(MU/MOD DUP >R U/MOD R> SWAP >R UM/MOD R>)
-col(<# PAD DUP !)
-col(HOLD PAD DUP @ 1- TUCK SWAP ! C!)
-col(SIGN 0< 0BRANCH(3) LIT('-') HOLD)
-col(# BASE @ MU/MOD ROT TODIGIT HOLD)
-col(#S # 2DUP OR 0BRANCH(2) BRANCH(-7))
-col(#> 2DROP PAD DUP @ TUCK -)
-col((.) <# DUP >R ABS 0 #S R> SIGN #>)
-col(U# BASE @ U/MOD SWAP TODIGIT HOLD)
-col(U#S U# DUP 0BRANCH(2) BRANCH(-6))
-col(U#> DROP PAD DUP @ TUCK -)
-col((U.) <# U#S U#>)
-col(. (.) TYPE SPACE)
-col(S. .)
-col(U. (U.) TYPE SPACE)
-col(.R SWAP (.) ROT 2DUP < 0BRANCH(5) OVER - SPACES BRANCH(1) DROP TYPE)
-col(U.R SWAP (U.) ROT 2DUP < 0BRANCH(5) OVER - SPACES BRANCH(1) DROP TYPE)
-col(.D BASE @ SWAP DECIMAL . BASE !)
-col(.H BASE @ SWAP HEX . BASE !)
-col(.S DEPTH DUP 0< 0BRANCH(2) DROP EXIT 0 DO?DO(8) DEPTH I - 1- PICK . DOLOOP(-8))
-col(? @ .)
-
-
-// Numeric input.
-col(DIGIT OVER UPC DUP LIT('A') LIT('Z') BETWEEN 0BRANCH(3) LIT(7) - LIT(0x30) - DUP ROT 0 SWAP WITHIN 0BRANCH(4) NIP TRUE BRANCH(2) DROP FALSE)
-col(>NUMBER DUP 0= 0BRANCH(1) EXIT OVER C@ BASE @ DIGIT 0BRANCH(23) SWAP >R SWAP >R >R BASE @ U* SWAP BASE @ UM* ROT + R> 0 D+ R> CHAR+ R> 1- BRANCH(-35) DROP)
-col($NUMBER DUP 0= 0BRANCH(4) DROP DROP TRUE EXIT >R DUP >R C@ LIT('-') = DUP 0BRANCH(15) R> CHAR+ R> 1- DUP 0= 0BRANCH(5) DROP DROP DROP TRUE EXIT >R >R 0 0 R> R> >NUMBER NIP 0= 0BRANCH(7) DROP SWAP 0BRANCH(1) NEGATE FALSE EXIT DROP DROP DROP TRUE)
-
-
-// Data space allocation.
-col(ALLOT HERE + DOTO HERE)
-col(, HERE ! /N ALLOT)
-col(C, HERE C! /C ALLOT)
-col(W, HERE W! /W ALLOT)
-col(L, HERE L! /L ALLOT)
-col(X, HERE X! /X ALLOT)
-col(ALIGN HERE /N 1- AND 0BRANCH(4) 0 C, BRANCH(-10))
-col(PLACE 2DUP C! CHAR+ SWAP CHARS BOUNDS DO?DO(9) DUP C@ I C! CHAR+ 1 CHARS DO+LOOP(-9) DROP)
-col(STRING, HERE OVER 1+ CHARS ALLOT PLACE)
-
-
-// Every language needs a no-op.
-col(NOOP)
-
-
-// Now it gets ugly: search-order and word-lisst infrastructure.
-
-raw(FORTH-WORDLIST DODOES _A(xt_NOOP+2+(8/sizeof(long))) _A(0) _A(0))
- // Engine initialisation will set this last cell to the xt of LASTWORD.
-
-// compilation dictionary
-raw(CURRENT DOVAL _A(xt_FORTH_X2d_WORDLIST+3+(16/sizeof(long))))
- // +7 for 32-bit, +5 for 64-bit
-
-col(LAST CURRENT CELL+)
-
-// for context dictionaries
-raw(SEARCH-ORDER DOVAR _A(xt_FORTH_X2d_WORDLIST+3+(16/sizeof(long))) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0))
- // +7 for 32-bit, +5 for 64-bit
-// for context dictionaries
-//raw(SEARCH-ORDER DOVAR _A(xt_FORTH_X2d_WORDLIST+3+(sizeof(" FORTH-WORDLIST")/sizeof(long))) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0) _A(0))
-// +7 for 32-bit, +5 for 64-bit
-raw(CONTEXT DOVAL _A(xt_SEARCH_X2d_ORDER+2+(16/sizeof(long))))
-//raw(CONTEXT DOVAL _A(xt_SEARCH_X2d_ORDER+6))
-// +6 for 32-bit, +4 for 64-bit
-
-// Dictionary structure.
-col(LINK>NAME CELL+)
-col(NAME> CHAR+ DUP C@ 1+ CHARS+ ALIGNED)
-col(LINK> LINK>NAME NAME>)
-col(NAME>STRING CHAR+ COUNT)
-
-// Creating word headers.
-var(LATEST 0)
-dfr((REVEAL))
-col(HEADER ALIGN HERE LAST @ , LATEST ! 0 C, STRING, ALIGN)
-col(REVEAL LATEST @ LINK>NAME NAME>STRING (REVEAL) LATEST @ LAST !)
-
-
-// Finding words.
-cod(STRING=CI)
-// (find) ( str len head -- 0 | link )
-dfr((FIND))
-col(((FIND)) DUP 0BRANCH(15) >R 2DUP R@ LINK>NAME NAME>STRING STRING=CI 0BRANCH(3) 2DROP R> EXIT R> @ BRANCH(-18) 3DROP FALSE)
-col((FIND-ORDER) CONTEXT DUP >R SEARCH-ORDER U>= 0BRANCH(18) 2DUP R@ @ CELL+ @ (FIND) ?DUP 0BRANCH(5) NIP NIP R> DROP EXIT R> CELL- BRANCH(-24) R> 3DROP 0)
-col(($FIND) (FIND-ORDER) DUP 0BRANCH(6) LINK>NAME DUP NAME> SWAP C@ TRUE)
-col($FIND 2DUP ($FIND) 0BRANCH(6) DROP NIP NIP TRUE BRANCH(1) FALSE)
-
-// Flags on words.
-con('IMMEDIATE 1)
-col(IMMEDIATE? 'IMMEDIATE AND 0<>)
-col(IMMEDIATE LAST @ CELL+ DUP C@ 'IMMEDIATE OR SWAP C!)
-
-// Parsing.
-col(FINDCHAR SWAP 0 DO?DO(24) OVER I + C@ OVER DUP BL = 0BRANCH(3) <= BRANCH(1) = 0BRANCH(6) I UNLOOP NIP NIP TRUE EXIT DOLOOP(-24) DROP DROP FALSE)
-col(PARSE >R IB >IN @ + SPAN @ >IN @ - 2DUP R> FINDCHAR 0BRANCH(6) NIP DUP 1 + BRANCH(1) DUP >IN +!)
-col(SKIPWS IB SPAN @ DUP >IN @ > 0BRANCH(14) OVER >IN @ + C@ BL <= 0BRANCH(5) 1 >IN +! BRANCH(-20) DROP DROP)
-col(PARSE-WORD SKIPWS BL PARSE)
-var(WHICHPOCKET 0)
-// We reserved 0x1000 for the pockets. So we have 16 pockets a 0x100
-col(POCKET POCKETS WHICHPOCKET @ LIT(POCKETSIZE) * + WHICHPOCKET @ 1 + DUP LIT(NUMPOCKETS) = 0BRANCH(2) DROP 0 WHICHPOCKET !)
-
-col(WORD POCKET >R PARSE DUP R@ C! BOUNDS R> DUP 2SWAP DO?DO(7) CHAR+ I C@ OVER C! DOLOOP(-7) DROP)
-
-// Some simple parsing words.
-col(CHAR PARSE-WORD DROP C@)
-imm(( LIT(')') PARSE 2DROP)
-// Removing comments out of the code, the code from the backslash to the next \n is removed.
-// We need to start from cursor -1 (the backslash) to handle the case backslash+linefeed correctly 0x5c0a
-imm(\ >IN @ 1- >IN ! LINEFEED PARSE 2DROP)
-
-// The compiler infrastructure.
-var(STATE 0)
-imm([ STATE OFF)
-col(] LIT(0x100) STATE !)
-col(?COMP STATE @ 0BRANCH(1) EXIT LIT(-134) THROW)
-
-col(COMPILE, ,)
-col(: PARSE-WORD HEADER DOTICK DOCOL COMPILE, ])
-col(:NONAME ALIGN HERE DOTICK DOCOL COMPILE, ])
-imm(; ?COMP DOTICK SEMICOLON COMPILE, REVEAL [)
-
-// Compiling strings.
-imm(C" ?COMP LIT('"') PARSE DOTICK SLITERAL COMPILE, DUP C, BOUNDS DO?DO(5) I C@ C, DOLOOP(-5) ALIGN)
-imm(S" STATE @ 0BRANCH(5) C" DOTICK COUNT COMPILE, EXIT LIT('"') PARSE DUP >R POCKET DUP >R SWAP MOVE R> R>)
-imm(Z" S" 2DUP + 0 SWAP C! DROP)
-imm(." STATE @ 0BRANCH(5) S" DOTICK TYPE COMPILE, EXIT LIT('"') PARSE TYPE)
-imm(.( LIT(')') PARSE TYPE)
-
-col(COMPILE R> CELL+ DUP @ COMPILE, >R)
-
-var(THERE 0)
-col(+COMP STATE @ 1 STATE +! 0BRANCH(1) EXIT HERE THERE ! COMP-BUFFER DOTO HERE COMPILE DOCOL)
-col(-COMP -1 STATE +! STATE @ 0BRANCH(1) EXIT COMPILE EXIT THERE @ DOTO HERE COMP-BUFFER EXECUTE)
-
-// Structure words.
-col(RESOLVE-ORIG HERE OVER CELL+ - SWAP !)
-imm(AHEAD +COMP DOTICK DOBRANCH COMPILE, HERE 0 COMPILE,)
-imm(IF +COMP DOTICK DO0BRANCH COMPILE, HERE 0 COMPILE,)
-imm(THEN ?COMP RESOLVE-ORIG -COMP)
-imm(ELSE ?COMP DOTICK DOBRANCH COMPILE, HERE 0 COMPILE, SWAP RESOLVE-ORIG)
-
-imm(CASE +COMP 0)
-imm(ENDCASE ?COMP DOTICK DROP COMPILE, ?DUP 0BRANCH(5) 1- SWAP THEN BRANCH(-8) -COMP)
-imm(OF ?COMP 1+ >R DOTICK OVER COMPILE, DOTICK = COMPILE, IF DOTICK DROP COMPILE, R>)
-imm(ENDOF ?COMP >R ELSE R>)
-
-col(RESOLVE-DEST HERE CELL+ - COMPILE,)
-imm(BEGIN +COMP HERE)
-imm(AGAIN ?COMP DOTICK DOBRANCH COMPILE, RESOLVE-DEST -COMP)
-imm(UNTIL ?COMP DOTICK DO0BRANCH COMPILE, RESOLVE-DEST -COMP)
-imm(WHILE ?COMP IF SWAP)
-imm(REPEAT ?COMP AGAIN THEN)
-
-// Counted loops.
-var(LEAVES 0)
-col(RESOLVE-LOOP LEAVES @ ?DUP 0BRANCH(10) DUP @ SWAP HERE OVER - SWAP ! BRANCH(-13) HERE - COMPILE, LEAVES !)
-imm(DO +COMP LEAVES @ HERE DOTICK DODO COMPILE, 0 LEAVES !)
-imm(?DO +COMP LEAVES @ DOTICK DODO?DO COMPILE, HERE HERE LEAVES ! 0 COMPILE,)
-imm(LOOP ?COMP DOTICK DODOLOOP COMPILE, RESOLVE-LOOP -COMP)
-imm(+LOOP ?COMP DOTICK DODO+LOOP COMPILE, RESOLVE-LOOP -COMP)
-imm(LEAVE ?COMP DOTICK DODOLEAVE COMPILE, LEAVES @ HERE LEAVES ! COMPILE,)
-imm(?LEAVE ?COMP DOTICK DODO?LEAVE COMPILE, LEAVES @ HERE LEAVES ! COMPILE,)
-
-// Interpreter nesting.
-col(SAVE-SOURCE R> IB >R #IB @ >R SOURCE-ID >R SPAN @ >R >IN @ >R >R)
-col(RESTORE-SOURCE R> R> >IN ! R> SPAN ! R> DOTO SOURCE-ID R> #IB ! R> DOTO IB >R)
-
-// System replies.
-str(OK-STR "ok")
-str(ABORTED-STR "Aborted")
-str(EXCEPTION-STR "Exception #")
-str(UNKNOWN-STR "Undefined word")
-dfr(HW-EXCEPTION-HANDLER)
-val(SHOW-STACK? 0)
-col(SHOWSTACK -1 DOTO SHOW-STACK?)
-col(NOSHOWSTACK 0 DOTO SHOW-STACK?)
-col(PRINT-STACK SHOW-STACK? 0BRANCH(5) >R >R .S R> R> )
-col(PRINT-EXCEPTION DUP LIT(-99) = 0BRANCH(7) DOTICK UNKNOWN-STR COUNT TYPE CR DROP EXIT DUP LIT(0x100) = 0BRANCH(2) DROP EXIT HW-EXCEPTION-HANDLER )
-col(PRINT-STATUS SPACE DUP 0= 0BRANCH(5) PRINT-STACK DOTICK OK-STR BRANCH(7) DUP -1 = 0BRANCH(6) DOTICK ABORTED-STR COUNT TYPE BRANCH(10) DUP LIT(-2) = 0BRANCH(7) ABORT"-STR @ COUNT TYPE DROP BRANCH(1) PRINT-EXCEPTION CR)
-
-// The compiler and interpreter.
-col(COMPILE-WORD 2DUP ($FIND) 0BRANCH(10) IMMEDIATE? 0BRANCH(4) NIP NIP EXECUTE EXIT COMPILE, 2DROP EXIT 2DUP $NUMBER 0BRANCH(4) TYPE LIT(-99) THROW DOTICK DOLIT COMPILE, COMPILE, 2DROP)
-col(INTERPRET-WORD 2DUP ($FIND) 0BRANCH(5) DROP NIP NIP EXECUTE EXIT 2DUP $NUMBER 0BRANCH(4) TYPE LIT(-99) THROW >R 2DROP R>)
-col(INTERPRET 0 >IN ! PARSE-WORD DUP 0BRANCH(10) STATE @ 0BRANCH(3) COMPILE-WORD BRANCH(1) INTERPRET-WORD BRANCH(-14) 2DROP)
-
-// Evaluate, the one word to rule them all. It is evil, btw.
-col(EVALUATE SAVE-SOURCE -1 DOTO SOURCE-ID DUP #IB ! SPAN ! DOTO IB DOTICK INTERPRET CATCH RESTORE-SOURCE THROW)
-col(EVAL EVALUATE)
-
-// Abort with a message.
-col(DOABORT" SWAP 0BRANCH(5) ABORT"-STR ! LIT(-2) THROW DROP)
-imm(ABORT" C" DOTICK DOABORT" COMPILE,)
-
-// Tick.
-str(UNDEFINED-STR "undefined word ")
-col(SET-UNDEFINED-WORD POCKET >R DOTICK UNDEFINED-STR DUP C@ 1+ R@ SWAP MOVE R@ DUP C@ 1+ + SWAP DUP R@ C@ + R@ C! MOVE R>)
-col(' PARSE-WORD $FIND 0= 0BRANCH(4) SET-UNDEFINED-WORD TRUE SWAP DOABORT")
-
-// The outer interpreter.
-col(QUIT 0 RDEPTH! [ TERMINAL DEPTH . LIT('>') EMIT SPACE REFILL 0BRANCH(10) SPACE DOTICK INTERPRET CATCH DUP PRINT-STATUS 0BRANCH(-17) BRANCH(-23))
-
-// Reading and writing to/from file; including files.
-dfr(MAP-FILE)
-dfr(UNMAP-FILE)
-dfr(WRITE-FILE)
-col(INCLUDED MAP-FILE 2DUP >R >R BOUNDS DO?DO(21) R> R@ SWAP >R R@ - R@ SWAP 2DUP LINEFEED FINDCHAR 0BRANCH(1) NIP DUP >R EVALUATE R> 1+ DO+LOOP(-21) R> R> UNMAP-FILE)
-col(INCLUDE PARSE-WORD INCLUDED)
-
-// CREATE ... DOES> ...
-col($CREATE HEADER DOTICK DODOES COMPILE, DOTICK NOOP CELL+ COMPILE, REVEAL)
-col(CREATE PARSE-WORD $CREATE)
-col(DODOES> R> CELL+ LATEST @ LINK> CELL+ !)
-imm(DOES> DOTICK DODOES> COMPILE,)
-
-// Defining words.
-col(CONSTANT PARSE-WORD HEADER DOTICK DOCON COMPILE, COMPILE, REVEAL)
-col(VALUE PARSE-WORD HEADER DOTICK DOVAL COMPILE, COMPILE, REVEAL)
-col(VARIABLE PARSE-WORD HEADER DOTICK DOVAR COMPILE, 0 COMPILE, REVEAL)
-col(BUFFER: PARSE-WORD HEADER DOTICK DOBUFFER: COMPILE, ALLOT REVEAL)
-col(DEFER PARSE-WORD HEADER DOTICK DODEFER COMPILE, DOTICK ABORT COMPILE, REVEAL)
-col(ALIAS PARSE-WORD HEADER DOTICK DOALIAS COMPILE, ' COMPILE, REVEAL)
-col(STRUCT 0)
-col(END-STRUCT DROP)
-col(FIELD PARSE-WORD HEADER DOTICK DOFIELD COMPILE, OVER , + REVEAL)
-
-// Words with (mostly) non-standard compilation behaviour.
-imm(LITERAL DOTICK DOLIT COMPILE, COMPILE,)
-imm([COMPILE] ' COMPILE,)
-imm(POSTPONE PARSE-WORD 2DUP ($FIND) 0= 0BRANCH(4) SET-UNDEFINED-WORD TRUE SWAP DOABORT" IMMEDIATE? 0= 0BRANCH(6) DOTICK DOTICK COMPILE, COMPILE, DOTICK COMPILE, COMPILE, 2DROP)
-imm([CHAR] CHAR LITERAL)
-imm(['] ' DOTICK DOTICK COMPILE, COMPILE,)
-
-// FIND.
-col(FIND DUP COUNT ($FIND) 0BRANCH(9) ROT DROP TRUE SWAP IMMEDIATE? 0BRANCH(1) NEGATE EXIT FALSE EXIT)
-
-// Accessing data in CREATE'd words.
-imm(TO ' STATE @ 0BRANCH(5) DOTICK DOTO COMPILE, COMPILE, EXIT CELL+ !)
-col(BEHAVIOR CELL+ @)
-col(>BODY 2 CELLS +)
-col(BODY> 2 CELLS -)
-
-// Making words recursive.
-imm(RECURSIVE REVEAL)
-imm(RECURSE LATEST @ LINK> COMPILE,)
-
-// Numeric input.
-imm(d# PARSE-WORD BASE @ >R DECIMAL EVALUATE R> BASE !)
-imm(h# PARSE-WORD BASE @ >R HEX EVALUATE R> BASE !)
-imm(o# PARSE-WORD BASE @ >R OCTAL EVALUATE R> BASE !)