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De-stabilize (n)
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parent
68dd800bd1
commit
53239c8f84
9
blk/263
9
blk/263
@ -5,11 +5,8 @@ CREATE XCURRENT 0 ,
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: _xapply ( a -- a-off )
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DUP ORG @ > IF ORG @ - BIN( @ + THEN ;
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: XFIND XCURRENT @ SWAP _find DROP _xapply ;
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: X' XCON ' XCOFF ; : X['] XCON ' _xapply LITN XCOFF ;
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: XCOMPILE XCON ' _xapply LITN
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: XLITN LIT" (n)" XFIND , , ;
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: X' XCON ' XCOFF ; : X['] XCON ' _xapply XLITN XCOFF ;
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: XCOMPILE XCON ' _xapply XLITN
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LIT" ," FIND DROP _xapply , XCOFF ;
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: X[COMPILE] XCON ' _xapply , XCOFF ;
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: XDO LIT" 2>R" XFIND , H@ ;
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: XLOOP LIT" (loop)" XFIND , H@ - C, ;
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: XIF LIT" (?br)" XFIND , H@ 1 ALLOT ;
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: XELSE LIT" (br)" XFIND , 1 ALLOT [COMPILE] THEN H@ 1- ;
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4
blk/264
4
blk/264
@ -1,3 +1,7 @@
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: XDO LIT" 2>R" XFIND , H@ ;
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: XLOOP LIT" (loop)" XFIND , H@ - C, ;
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: XIF LIT" (?br)" XFIND , H@ 1 ALLOT ;
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: XELSE LIT" (br)" XFIND , 1 ALLOT [COMPILE] THEN H@ 1- ;
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: XAGAIN LIT" (br)" XFIND , H@ - C, ;
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: XUNTIL LIT" (?br)" XFIND , H@ - C, ;
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: XLIT"
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2
blk/265
2
blk/265
@ -8,7 +8,7 @@
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ELSE ( w )
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0x02 RAM+ @ SWAP ( cur w ) _find ( a f )
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IF DUP IMMED? NOT IF ABORT THEN EXECUTE
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ELSE (parse) LITN THEN
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ELSE (parse) XLITN THEN
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THEN
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AGAIN
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;
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2
blk/270
2
blk/270
@ -5,7 +5,7 @@
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: DO XDO ; IMMEDIATE : LOOP XLOOP ; IMMEDIATE
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: IF XIF ; IMMEDIATE : ELSE XELSE ; IMMEDIATE
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: AGAIN XAGAIN ; IMMEDIATE : UNTIL XUNTIL ; IMMEDIATE
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: LIT" XLIT" ; IMMEDIATE
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: LIT" XLIT" ; IMMEDIATE : LITN XLITN ;
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: IMMEDIATE XIMM ;
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: (entry) (xentry) ;
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: CREATE XCREATE ;
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2
blk/283
2
blk/283
@ -5,7 +5,7 @@ NOP, NOP, ( 06, uflw ) NOP, NOP, ( 08, LATEST ) NOP, ( unused )
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0 JP, ( RST 10 ) NOP, NOP, ( 13, oflw )
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NOP, NOP, NOP, NOP, NOP, ( unused )
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0 JP, ( 1a, next ) NOP, NOP, NOP, ( unused )
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0 JP, ( RST 20 ) 0 A, 0 JP, ( 23, (n) ) NOP, ( unused )
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0 JP, ( RST 20 ) 0 A, 0 A, 0 A, 0 A, 0 A, ( unused )
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0 JP, ( RST 28 ) 0 A, 0 A, 0 A, 0 A, 0 A, ( unused )
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0 JP, ( RST 30 ) 0 A, 0 A, 0 A, 0 A, 0 A, ( unused )
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0 JP, ( RST 38 )
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1
blk/306
1
blk/306
@ -1,5 +1,4 @@
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CODE (n) ( number literal )
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PC ORG @ 0x25 + ! ( stable ABI JP )
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( Literal value to push to stack is next to (n) reference
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in the atom list. That is where IP is currently pointing.
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Read, push, then advance IP. )
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2
blk/397
2
blk/397
@ -3,7 +3,7 @@
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: DO COMPILE 2>R H@ ; IMMEDIATE
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: LOOP COMPILE (loop) H@ - _bchk C, ; IMMEDIATE
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( LEAVE is implemented in low xcomp )
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: LITN 0x23 ( n ) , , ;
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: LITN COMPILE (n) , ;
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( gets its name at the very end. can't comment afterwards )
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: _ BEGIN LIT" )" WORD S= UNTIL ; IMMEDIATE
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: _ ( : will get its name almost at the very end )
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3
blk/805
3
blk/805
@ -6,5 +6,4 @@ JMPn, 0 A,, ( 00, main ) 0 A, ( 03, boot driveno )
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JMPn, 0 A,, ( 0b, EXIT )
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0 A,, 0 A,, ( unused ) 0 A,, ( 13, oflw )
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0 A,, 0 A,, 0 A, ( unused )
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JMPn, 0 A,, ( 1a, next ) 0 A,, 0 A,, 0 A,, ( unused )
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0 A, JMPn, 0 A,, ( 23, (n) )
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JMPn, 0 A,, ( 1a, next )
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blk/812
1
blk/812
@ -1,5 +1,4 @@
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CODE (n) ( number literal )
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PC 0x27 - ORG @ 0x25 + ! ( stable abi )
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DI DX MOVxx, DI [DI] MOVx[], DI PUSHx,
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DX INCx, DX INCx,
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;CODE
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BIN
cvm/forth.bin
BIN
cvm/forth.bin
Binary file not shown.
@ -13,8 +13,7 @@ CREATE BIN( 0 ,
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H@ ORG !
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0x0b ALLOT0
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0 C, 0 C, ( EXIT )
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0x16 ALLOT0
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0 C, 0x05 C, ( (n) )
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0x08 ALLOT0
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( END OF STABLE ABI )
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H@ 4 + XCURRENT ! ( make next CODE have 0 prev field )
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0x00 CODE EXIT
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@ -195,7 +195,7 @@ otherwise be difficult to access. Here's the complete list of
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these references:
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04 BOOT addr 06 (uflw) addr 08 LATEST
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0b EXIT wordref 13 (oflw) addr 23 (n) wordref
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0b EXIT wordref 13 (oflw) addr 1a next addr
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BOOT, (uflw) and (oflw) exist because they are referred to
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before those words are defined (in core words). LATEST is a
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