blkunpack: don't include trailing empty lines

This was becoming heavy to manage.

blk/001

@@ -11,6 +11,3 @@ MASTER INDEX
 620 Sega Master System Recipe
 650 AVR assembler             730 8086 assembler
 800 8086 boot code            830 PC/AT recipe
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blk/004

@@ -1,16 +1,2 @@
 21 How blocks are organized    22 Addressed devices
 23 Branching
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blk/005

@@ -9,8 +9,3 @@ are hexadecimals (example "0x12ef"), "0b" prefixes indicate
 binary (example "0b1010"), char literals are single characters
 surrounded by ' (example 'X'). Char literals can't be used for
 whitespaces.
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blk/006

@@ -12,5 +12,3 @@ writes that number as a literal, followed by a reference to
 Example: ": foo [COMPILE] bar;" is the equivalent of ": foo bar
 ;" if bar is not an immediate. However, ": foo COMPILE bar ;"
 is the equivalent of ": foo ['] bar , ;". Got it?
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blk/009

@@ -4,13 +4,3 @@ prompt control to a RS-232 device instead of the keyboard.
 Interpreter output is unbuffered and only has EMIT. This
 word can also be overriden, mostly as a companion to the
 raison d'etre of your KEY override.
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blk/011

@@ -7,10 +7,3 @@ support the "-" prefix, but under the hood, it's all unsigned.
 This leads to some oddities. For example, "-1 0 <" is false.
 To compare whether something is negative, use the "0<" word
 which is the equivalent to "0x7fff >".
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blk/017

@@ -13,4 +13,3 @@ At compile time, colon definition stops processing words when
 reaching the DOES>.
 
 Example: ": CONSTANT CREATE HERE @ ! DOES> @ ;"
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blk/020

@@ -6,11 +6,3 @@ Although the usage of absolute LOAD calls are minimally used
 (relative LOADs are preferred), they are sometimes unavoidable.
 When you span Collapse OS over multiple disks, don't forget to
 adjust those absolute LOADs.
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blk/021

@@ -11,6 +11,3 @@ try to strive towards a few goals:
 4. B200-B500 are for bootstrapping
 5. The rest is for recipes.
 6. I'm not sure yet how I'll organize multiple arches.
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blk/022

@@ -4,13 +4,3 @@ A@ and A! are the indirect versions of C@ and C!. Their target
 word is controlled through A@* and A!* and by default point to
 C@ and C*. There is also a AMOVE word that is the same as MOVE
 but using A@ and A!.
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blk/023

@@ -9,8 +9,3 @@ The reasoning behind this intentional limit is that huge
 branches are generally a indicator that a logic ought to be
 simplified. So here's one more constraint for you to help you
 towards simplicity.
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blk/030

@@ -10,7 +10,3 @@ and Extra words (B150).
 52 Addressed devices           54 Arithmetic / Bits
 56 Logic                       58 Strings
 60 I/O                         64 Disk
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blk/032

@@ -7,10 +7,3 @@ Words between "()" are "support words" that aren't really meant
 to be used directly, but as part of another word.
 
 "*I*" in description indicates an IMMEDIATE word.
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blk/035

@@ -1,16 +1,3 @@
 (cont.)
 ~ - Container for native code. Usually not an executable word.
 ? - Is it ...? (example: IMMED?)
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blk/038

@@ -3,14 +3,3 @@ FORGET x --       Rewind the dictionary (both CURRENT and HERE)
                   up to x's previous entry.             
 PREV   a -- a     Return a wordref's previous entry.
 WORD(  a -- a     Get wordref's beginning addr.
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blk/044

@@ -3,14 +3,3 @@ INTERPRET --   Get a line from stdin, compile it in tmp memory,
                then execute the compiled contents.
 LEAVE     --   In a DO..LOOP, exit at the next LOOP call.
 QUIT      --   Return to interpreter prompt immediately
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blk/047

@@ -4,13 +4,3 @@ PICK        Pick nth item from stack. "0 PICK" = DUP,
             "1 PICK" = OVER.
 ROLL        Rotate PSP over n items. "1 ROLL" = SWAP,
             "2 ROLL" = ROT. 0 is noop.
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blk/048

@@ -7,10 +7,3 @@ R>          R:n -- n        Pops RS and push to PS
 I           -- n            Copy RS TOS to PS
 I'          -- n            Copy RS second item to PS
 J           -- n            Copy RS third item to PS
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blk/051

@@ -8,9 +8,3 @@ MOVE     a1 a2 u --      Copy u bytes from a1 to a2, starting
 MOVE-    a1 a2 u --      Copy u bytes from a1 to a2, starting
                          with a1+u, going down.
 MOVE,    a u --          Copy u bytes from a to HERE.
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blk/052

@@ -8,9 +8,3 @@ A!          c a --          Indirect C!
 A@*         -- a            Address for A@ word
 A!*         -- a            Address for A! word
 AMOVE       src dst u --    Same as MOVE, but with A@ and A!
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blk/056

@@ -10,7 +10,3 @@ CMP  n1 n2 -- n Compare n1 and n2 and set n to -1, 0, or 1.
 MIN  a b -- n   Returns the lowest of a and b
 MAX  a b -- n   Returns the highest of a and b
 NOT  f -- f     Push the logical opposite of f
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blk/058

@@ -5,12 +5,3 @@ LIT    --         Write a LIT entry. You're expected to write
 LIT< x --         Read following word and write to HERE as a
                   string literal.
 S=     a1 a2 -- f Returns whether string a1 == a2.
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blk/062

@@ -7,10 +7,3 @@ BS CR LF SPC CRLF
 NL is an indirect word (see B80) that aliases to CRLF by
 default and that should generally be used when we want to emit
 a newline.
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blk/070

@@ -4,13 +4,3 @@ Implementation notes
 75 Stack management            77 Dictionary
 80 System variables            85 Word types
 89 Initialization sequence
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blk/071

@@ -9,8 +9,3 @@ it. As a general rule, we go like this:
 4. Is it a number?
 5. If yes, push that number to PS, goto 1
 6. Error: undefined word.
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blk/076

@@ -4,13 +4,3 @@ prohibitive in terms of costs), PS_ADDR should be set to
 at least 6 bytes before its actual limit. 6 bytes because we
 seldom have words requiring more than 3 items from the stack.
 Then, at each "exit" call we check for stack underflow.
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blk/078

@@ -10,7 +10,3 @@ chain). There are also "special words", for example NUMBER,
 LIT, FBR, that have a slightly different structure. They're
 also a pointer to an executable, but as for the other fields,
 the only one they have is the "flags" field.
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blk/084

@@ -12,5 +12,3 @@ BLK* see B416.
 FUTURE USES section is unused for now.          
 
 DRIVERS section is reserved for recipe-specific drivers.
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blk/086

@@ -4,13 +4,3 @@ compiled. At that address is an atom list exactly like in a
 compiled word. Upon execution, after having pushed its cell
 addr to PSP, it executes its reference exactly like a
 compiled word.
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blk/090

@@ -8,9 +8,3 @@
 In RAM-only environment, we will typically have a
 "CURRENT @ HERE !" line during init to have HERE begin at the
 end of the binary instead of RAMEND.
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blk/102

@@ -1,16 +1,2 @@
 X ( n -- ): Delete X chars after cursor and place in IBUF.
 E: Run X with n = length of FBUF.
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blk/105

@@ -12,5 +12,3 @@
         ENDCASE
     AGAIN
 ;
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blk/106

@@ -8,9 +8,3 @@ CREATE ACC 0 ,
 : L BLK> @ _LIST ;
 : B BLK> @ 1- BLK@ L ;
 : N BLK> @ 1+ BLK@ L ;
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blk/107

@@ -11,6 +11,3 @@ CREATE FBUF 64 ALLOT0
         EMIT
     LOOP ( lno ) 1+ . ;
 : _zbuf 64 0 FILL ; ( buf -- )
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blk/108

@@ -10,7 +10,3 @@
 : _mvln- ( ln -- move ln 1 line up )
     DUP 14 > IF DROP 15 _lpos _zbuf
     ELSE 1+ _lpos DUP 64 - 64 MOVE THEN ;
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blk/109

@@ -3,14 +3,3 @@
         14 I - _mvln+
     LOOP ;
 : U _U P ;
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blk/110

@@ -8,9 +8,3 @@
     UNTIL ( a1 a2 )
     DUP BLK) < IF BLK( - FBUF + -^ EDPOS ! ELSE DROP THEN ;
 : F FBUF _type _F EDPOS @ 64 / _pln ;
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blk/111

@@ -11,6 +11,3 @@
     ELSE DROP 1+ ( ilen becomes rbuffsize+1 ) THEN
     DUP IBUF EDPOS @ _cpos ROT MOVE ( ilen ) EDPOS +! BLK!! ;
 : I IBUF _type _I EDPOS @ 64 / _pln ;
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blk/123

@@ -13,4 +13,3 @@
 'D' deletes "modifier" lines at the cursor. The first of those
 lines is copied to IBUF.
                                                         (cont.)
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blk/124

@@ -8,9 +8,3 @@ be sure, then press 'E'.
 'R' goes into replace mode at current cursor position.
 Following keystrokes replace current character and advance
 cursor. Press return to return to normal mode.
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blk/125

@@ -1,16 +1,3 @@
 '? UPPER NOT [IF] 33 LOAD+ [THEN] DROP ( B158 )
 -20 LOAD+ ( B105, block editor )
 1 6 LOADR+
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blk/126

@@ -12,5 +12,3 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 ,
 : contents 3 aty BLK> @ LIST 3 16 gutter ;
 : selblk BLK> @ PREVBLK ! BLK@ contents ;
 : mode! ( c -- ) 63 0 AT-XY ;
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-

blk/127

@@ -8,9 +8,3 @@
     DUP 0x20 < IF 2DROP DROP EXIT THEN
     ( buf ln c ) 63 nspcs SWAP 4 SWAP AT-XY ( buf c ) SWAP C!+
     IN( _zbuf (rdln) IN( SWAP 63 MOVE ;
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blk/128

@@ -10,7 +10,3 @@
 : $h -1 cmv ; : $l 1 cmv ; : $k -64 cmv ; : $j 64 cmv ;
 : $H EDPOS @ 0x3c0 AND pos! ;
 : $L EDPOS @ 0x3f OR pos! ;
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blk/129

@@ -10,7 +10,3 @@
 : $B EDPOS @ BLK( + acc@ 0 DO
     BEGIN C@- WS? UNTIL BEGIN C@- WS? NOT UNTIL LOOP
     1+ BLK( - pos! ;
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blk/131

@@ -11,6 +11,3 @@
     clrscr 0 ACC ! 0 PREVPOS ! contents
     BEGIN status bufs setpos KEY handle UNTIL
     19 aty (infl) ;
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blk/150

@@ -13,4 +13,3 @@ Some programs need them, so they will automatically LOAD them.
 Because more than one program can use the same extra words,
 conditional loaders are recommended. If you want to load all
 words do "152 LOAD" which conditionally loads all extra words.
-

blk/152

@@ -1,16 +1,3 @@
 '? CASE NOT [IF] 1 2 LOADR+ [THEN] DROP ( from '? )
 '? FILL NOT [IF] 3 LOAD+ [THEN] DROP
 '? WIPE NOT [IF] 5 LOAD+ [THEN] DROP
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blk/153

@@ -7,10 +7,3 @@
     [COMPILE] IF COMPILE DROP
 ; IMMEDIATE
 : ENDOF [COMPILE] ELSE ; IMMEDIATE
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blk/154

@@ -7,10 +7,3 @@
         [COMPILE] THEN
     AGAIN
 ; IMMEDIATE
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blk/155

@@ -3,14 +3,3 @@
         DUP I C!
     LOOP DROP ;
 : ALLOT0 ( n -- ) H@ OVER 0 FILL ALLOT ;
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blk/158

@@ -1,16 +1,2 @@
 : LOWER DUP 'A' 'Z' =><= IF 32 + THEN ;
 : UPPER DUP 'a' 'z' =><= IF 32 - THEN ;
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blk/200

@@ -11,6 +11,3 @@ Z80 Assembler
 238 OP3ddnn                    240 OP3nn
 242 Specials                   246 Flow
 249 Macros
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blk/206

@@ -1,16 +1,3 @@
 On top of that, you have the very nice BREAK, instruction,
 which must also be preceded by a JRxx, and will jump to the
 PC following the next AGAIN,
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blk/209

@@ -9,8 +9,3 @@ JR [, Z, NZ, C, NC]
 
 DI         EI          EXDEHL      EXX         HALT
 NOP        RET         RETI        RETN        SCF
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blk/212

@@ -1,16 +1 @@
 1 37 LOADR+
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blk/213

@@ -6,11 +6,3 @@ VARIABLE L1 VARIABLE L2 VARIABLE L3 VARIABLE L4
 : BC 0 ; : DE 1 ; : HL 2 ; : AF 3 ; : SP AF ;
 : CNZ 0 ; : CZ 1 ; : CNC 2 ; : CC 3 ;
 : CPO 4 ; : CPE 5 ; : CP 6 ; : CM 7 ;
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blk/216

@@ -9,8 +9,3 @@
 0x17 OP1 RLA,                  0x07 OP1 RLCA,
 0x1f OP1 RRA,                  0x0f OP1 RRCA,
 0x37 OP1 SCF,
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blk/217

@@ -7,10 +7,3 @@
 0x18 OP1 JR,                   0x10 OP1 DJNZ,
 0x38 OP1 JRC,                  0x30 OP1 JRNC,
 0x28 OP1 JRZ,                  0x20 OP1 JRNZ,
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blk/218

@@ -10,7 +10,3 @@
 0x04 OP1r INCr,                0x05 OP1r DECr,
 : INC(IXY+), INCr, A, ;
 : DEC(IXY+), DECr, A, ;
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blk/219

@@ -12,5 +12,3 @@
 0xb0 OP1r0 ORr,                0x90 OP1r0 SUBr,
 0x98 OP1r0 SBCr,               0xa8 OP1r0 XORr,
 : CP(IXY+), CPr, A, ;
-
-

blk/220

@@ -13,4 +13,3 @@
 
 : ADDIXss, 0xdd A, ADDHLss, ;  : ADDIXIX, HL ADDIXss, ;
 : ADDIYss, 0xfd A, ADDHLss, ;  : ADDIYIY, HL ADDIYss, ;
-

blk/222

@@ -12,5 +12,3 @@
     _1rr
 ;
 0x40 OP1rr LDrr,
-
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blk/223

@@ -11,6 +11,3 @@
     SWAP            ( ixy+- rd HL )
     LDIXYr,
 ;
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blk/224

@@ -7,10 +7,3 @@
 0xeda8 OP2 LDD,                0xedb8 OP2 LDDR,
 0xed44 OP2 NEG,
 0xed4d OP2 RETI,               0xed45 OP2 RETN,
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blk/226

@@ -12,5 +12,3 @@
 0xd6 OP2n SUBn,
 0xee OP2n XORn,
 0xfe OP2n CPn,
-
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blk/228

@@ -8,9 +8,3 @@
     OR A, A,
 ;
 0x06 OP2rn LDrn,
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blk/230

@@ -11,6 +11,3 @@
 0xc0 OP2br SETbr,
 0x80 OP2br RESbr,
 0x40 OP2br BITbr,
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-
-

blk/232

@@ -13,4 +13,3 @@
 0x08 OProt RRCr,
 0x20 OProt SLAr,
 0x38 OProt SRLr,
-

blk/234

@@ -11,6 +11,3 @@
 ;
 0xed41 OP2r OUT(C)r,
 0xed40 OP2r INr(C),
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blk/236

@@ -9,8 +9,3 @@
 ;
 0x4a OP2ss ADCHLss,
 0x42 OP2ss SBCHLss,
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blk/238

@@ -9,8 +9,3 @@
     A,,
 ;
 0x01 OP3ddnn LDddnn,
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blk/240

@@ -9,8 +9,3 @@
 0xc3 OP3nn JPnn,
 0x22 OP3nn LD(nn)HL,
 0x2a OP3nn LDHL(nn),
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blk/242

@@ -12,5 +12,3 @@
 
 : JP(IX), IX DROP JP(HL), ;
 : JP(IY), IY DROP JP(HL), ;
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blk/243

@@ -10,5 +10,3 @@ CREATE lblnext 0x1a , ( stable ABI until set in B300 )
 : CODE ( same as CREATE, but with native word )
     (entry) 0 C, ( 0 == native ) ;
 : ;CODE JPNEXT, ;
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blk/247

@@ -6,11 +6,3 @@
     THEN ;
 : AGAIN, BREAK?, PC - 1- A, ;
 : BWR @ AGAIN, ;
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blk/249

@@ -10,7 +10,3 @@
 : LDDE(HL), E (HL) LDrr, HL INCss, D (HL) LDrr, ;
 : OUTHL, DUP A H LDrr, OUTnA, A L LDrr, OUTnA, ;
 : OUTDE, DUP A D LDrr, OUTnA, A E LDrr, OUTnA, ;
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blk/261

@@ -7,10 +7,3 @@ See example in /emul/xcomp.fs
 
 Why limit ourselves to icore? Oh, I've tried cross-compiling
 the whole shebang. I tried. And failed. Too dynamic.
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blk/262

@@ -1,16 +1 @@
 1 LOAD+ 3 LOAD+ 6 LOAD+ 
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blk/263

@@ -13,4 +13,3 @@ VARIABLE XCURRENT
     XCON ' _xapply LITN
     LIT< , FIND DROP _xapply , XCOFF ;
 : X[COMPILE] XCON ' _xapply , XCOFF ;
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blk/264

@@ -12,5 +12,3 @@ never supposed to encounter an immediate at this point.
 If not found, we try the same word on system dict (RAM+02).
 If found and is immediate, execute. If found and not immediate,
 error. If not found, try number.
-
-

blk/265

@@ -12,5 +12,3 @@
     THEN
     AGAIN
 ;
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-

blk/270

@@ -8,9 +8,3 @@
 : : [ ' X: , ] ;
 
 CURRENT @ XCURRENT !
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blk/281

@@ -10,7 +10,3 @@ up until 0x67, the (?br) wordref, pretty much everything has
 to stay put.
 
 To assemble, run "282 LOAD".
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blk/282

@@ -1,13 +1,3 @@
 VARIABLE lblofl VARIABLE lblpushRS VARIABLE lblexec
 VARIABLE lblfind
 1 53 LOADR+
-
-
-
-
-
-
-
-
-
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blk/285

@@ -13,4 +13,3 @@ CODE (loop) ( 0x80 )
     A 1 IX+ LDrIXY, 1 IX- CP(IXY+), JRNZ, L2 BWR ( branch )
     ( don't branch )
     IX DECss, IX DECss, IX DECss, IX DECss, JR, L1 BWR
-

blk/288

@@ -10,7 +10,3 @@ CODE 2R>
     20 BCALL, ( 20 == popRS ) EXDEHL, 20 BCALL,
     HL PUSHqq, DE PUSHqq,
 ;CODE
-
-
-
-

blk/291

@@ -13,4 +13,3 @@ lblfind BSET
     C A LDrr, B 0 LDrn, ( C holds our length )
     BC ADDHLss, HL INCss, ( HL points to after-last-char )
                                                      ( cont . )
-

blk/292

@@ -6,11 +6,3 @@
         LDA(DE),
         0x7f ANDn,          ( remove IMMEDIATE flag )
         C CPr,                                        ( cont. )
-
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blk/293

@@ -13,4 +13,3 @@
             DJNZ, AGAIN,
         THEN,
                                                       ( cont. )
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blk/296

@@ -4,13 +4,3 @@
     L2 FSET ( end )
     HL POPqq,
     RET,
-
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-

blk/297

@@ -11,6 +11,3 @@ PC ORG @ 0x15 + ! ( popRS )
     IX DECss,
     IX DECss,
     RET,
-
-
-

blk/298

@@ -1,13 +1,3 @@
 lblofl BSET ( abortUnderflow )
     DE BIN( @ 0x06 ( uflw ) + LDdd(nn),
     JR, L2 FWR ( execute, B301 )
-
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blk/302

@@ -11,4 +11,3 @@
     HL INCss,
     D (HL) LDrr,
     ( continue to compiledWord )
-

blk/303

@@ -10,6 +10,3 @@
     HL INCss,
     HL PUSHqq, IY POPqq, ( --> IP )
     JR, lblexec BWR      ( execute-B301 )
-
-
-

blk/305

@@ -10,7 +10,3 @@ lblchkPS BSET ( chkPS )
     EXX,
     CNC RETcc,      ( PS_ADDR >= SP? good )
     JR, lblofl BWR      ( abortUnderflow-B298 )
-
-
-
-

blk/306

@@ -13,4 +13,3 @@ CODE ROT
     chkPS,
     DE PUSHqq, ( B ) HL PUSHqq, ( C ) BC PUSHqq, ( A )
 ;CODE
-

blk/308

@@ -6,11 +6,3 @@ CODE SWAP
     HL PUSHqq,      ( B )
     DE PUSHqq,      ( A )
 ;CODE
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-
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-
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blk/309

@@ -7,10 +7,3 @@ CODE OVER
     HL PUSHqq,      ( B )
     DE PUSHqq,      ( A )
 ;CODE
-
-
-
-
-
-
-

blk/310

@@ -13,4 +13,3 @@ CODE PICK
     CC lblofl @ JPccnn,    ( abortUnderflow-B298 )
     BC PUSHqq,
 ;CODE
-