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Add BS, CR, LF, SPC ASCII consts
Previously, these words would be ascii emitters, but seldom used except for the SPC emitter. However, I would often end up hardcoding these constants. With useless emitters removed and ASCII constants added, we have a more usable system. Also, fix broken test harness.
This commit is contained in:
Virgil Dupras
parent
cbf9ecfb1e
commit
527f5977d7
@ -15,6 +15,6 @@ RS_ADDR 0x80 - CONSTANT SYSVARS
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( Update LATEST )
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PC ORG @ 8 + !
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( TRS-80 wants CR-only newlines )
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," 13 0x50 RAM+ C! BLK$ FD$ " EOT,
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," CR 0x50 RAM+ C! BLK$ FD$ " EOT,
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ORG @ |M 2 PC! 2 PC!
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H@ |M 2 PC! 2 PC!
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74
blk.fs
74
blk.fs
@ -450,7 +450,7 @@ VARIABLE L1 VARIABLE L2 VARIABLE L3 VARIABLE L4
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( We divide by 2 because each PC represents a word. )
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: PC H@ ORG @ - 1 RSHIFT ;
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( ----- 052 )
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: _oor ." arg out of range: " .X SPC ." PC: " PC .X NL> ABORT ;
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: _oor ." arg out of range: " .X SPC> ." PC: " PC .X NL> ABORT ;
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: _r8c DUP 7 > IF _oor THEN ;
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: _r32c DUP 31 > IF _oor THEN ;
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: _r16+c _r32c DUP 16 < IF _oor THEN ;
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@ -624,13 +624,13 @@ CREATE FBUF 64 ALLOT0
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: _pln ( lineno -- )
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DUP _lpos DUP 64 + SWAP DO ( lno )
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I EDPOS @ _cpos = IF '^' EMIT THEN
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I C@ DUP 0x20 < IF DROP 0x20 THEN
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I C@ DUP SPC < IF DROP SPC THEN
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EMIT
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LOOP ( lno ) 1+ . ;
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: _zbuf 64 0 FILL ; ( buf -- )
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( ----- 108 )
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: _type ( buf -- )
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C< DUP 0xd = IF 2DROP EXIT THEN SWAP DUP _zbuf ( c a )
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C< DUP CR = IF 2DROP EXIT THEN SWAP DUP _zbuf ( c a )
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BEGIN ( c a ) C!+ C< TUCK 0x0d = UNTIL ( c a ) C! ;
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( user-facing lines are 1-based )
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: T 1- DUP 64 * EDPOS ! _pln ;
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@ -654,19 +654,19 @@ CREATE FBUF 64 ALLOT0
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BEGIN
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C@+ ROT ( a2+1 c2 a1 ) C@+ ROT ( a2+1 a1+1 c1 c2 )
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= NOT IF DROP FBUF THEN ( a2 a1 )
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TUCK C@ 0xd = ( a1 a2 f1 )
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TUCK C@ CR = ( a1 a2 f1 )
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OVER BLK) = OR ( a1 a2 f1|f2 )
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UNTIL ( a1 a2 )
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DUP BLK) < IF BLK( - FBUF + -^ EDPOS ! ELSE DROP THEN ;
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: F FBUF _type _F EDPOS @ 64 / _pln ;
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( ----- 111 )
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: _blen ( buf -- length of str in buf )
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DUP BEGIN C@+ 0x20 < UNTIL -^ 1- ;
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DUP BEGIN C@+ SPC < UNTIL -^ 1- ;
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: _rbufsz ( size of linebuf to the right of curpos )
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EDPOS @ 64 MOD 63 -^ ;
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: _lnfix ( --, ensure no ctl chars in line before EDPOS )
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EDPOS @ DUP 0xffc0 AND 2DUP = IF 2DROP EXIT THEN DO
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I _cpos DUP C@ 0x20 < IF 0x20 SWAP C! ELSE DROP THEN LOOP ;
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I _cpos DUP C@ SPC < IF SPC SWAP C! ELSE DROP THEN LOOP ;
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: _i ( i without _pln and _type. used in VE )
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_rbufsz IBUF _blen 2DUP > IF
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_lnfix TUCK - ( ilen chars-to-move )
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@ -781,17 +781,17 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 , CREATE xoff 0 ,
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: width large? IF 64 ELSE COLS THEN ;
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: acc@ ACC @ 1 MAX ; : pos@ ( x y -- ) EDPOS @ 64 /MOD ;
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: num ACC @ SWAP _pdacc IF ACC ! ELSE DROP THEN ;
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: nspcs ( n -- , spit n space ) 0 DO SPC LOOP ;
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: nspcs ( n -- , spit n space ) 0 DO SPC> LOOP ;
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: aty 0 SWAP AT-XY ;
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: clrscr COLS LINES * 0 DO 0x20 I CELL! LOOP ;
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: clrscr COLS LINES * 0 DO SPC I CELL! LOOP ;
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: gutter ( ln n ) OVER + SWAP DO 67 I AT-XY '|' EMIT LOOP ;
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: status 0 aty ." BLK" SPC BLK> ? SPC ACC ?
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SPC pos@ . ',' EMIT . xoff @ IF '>' EMIT THEN SPC
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: status 0 aty ." BLK" SPC> BLK> ? SPC> ACC ?
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SPC> pos@ . ',' EMIT . xoff @ IF '>' EMIT THEN SPC>
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BLKDTY @ IF '*' EMIT THEN 4 nspcs ;
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: nums 17 1 DO 2 I + aty I . SPC SPC LOOP ;
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: nums 17 1 DO 2 I + aty I . SPC> SPC> LOOP ;
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( ----- 127 )
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: mode! ( c -- ) 4 col- CELL! ;
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: @emit C@ 0x20 MAX 0x7f MIN EMIT ;
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: @emit C@ SPC MAX 0x7f MIN EMIT ;
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: contents
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16 0 DO
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large? IF 3 ELSE 0 THEN I 3 + AT-XY
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@ -810,7 +810,7 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 , CREATE xoff 0 ,
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: cmv ( n -- , char movement ) acc@ * EDPOS @ + pos! ;
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: buftype ( buf ln -- )
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3 OVER AT-XY KEY DUP EMIT
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DUP 0x20 < IF 2DROP DROP EXIT THEN
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DUP SPC < IF 2DROP DROP EXIT THEN
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( buf ln c ) 4 col- nspcs SWAP 4 SWAP AT-XY ( buf c )
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SWAP C!+ IN( _zbuf (rdln) IN( SWAP 63 MOVE ;
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: bufp ( buf -- )
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@ -824,8 +824,8 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 , CREATE xoff 0 ,
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: $[ BLK> @ acc@ - selblk ;
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: $] BLK> @ acc@ + selblk ;
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: $t PREVBLK @ selblk ;
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: $I 'I' mode! IBUF 1 buftype _i bufs contents 0x20 mode! ;
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: $F 'F' mode! FBUF 2 buftype _F bufs setpos 0x20 mode! ;
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: $I 'I' mode! IBUF 1 buftype _i bufs contents SPC mode! ;
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: $F 'F' mode! FBUF 2 buftype _F bufs setpos SPC mode! ;
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: $Y Y bufs ;
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: $E _E bufs contents ;
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: $X acc@ _X bufs contents ;
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@ -855,9 +855,9 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 , CREATE xoff 0 ,
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: $R ( replace mode )
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'R' mode!
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BEGIN setpos KEY DUP BS? IF -1 EDPOS +! DROP 0 THEN
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DUP 0x20 >= IF
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DUP SPC >= IF
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DUP EMIT EDPOS @ _cpos C! 1 EDPOS +! BLK!! 0
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THEN UNTIL 0x20 mode! contents ;
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THEN UNTIL SPC mode! contents ;
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: $O _U EDPOS @ 0x3c0 AND DUP pos! _cpos _zbuf BLK!! contents ;
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: $o EDPOS @ 0x3c0 < IF EDPOS @ 64 + EDPOS ! $O THEN ;
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: $D $H 64 icpy
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@ -927,7 +927,7 @@ VARIABLE aspprevx
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ROT TUCK + 0x10 - ( sz a end )
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TUCK SWAP 0 ROT> ( sz end sum end a ) DO ( sz end sum )
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I C@ + LOOP ( sz end sum ) SWAP ( sz sum end )
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'T' C!+^ 'M' C!+^ 'R' C!+^ 0x20 C!+^ 'S' C!+^
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'T' C!+^ 'M' C!+^ 'R' C!+^ SPC C!+^ 'S' C!+^
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'E' C!+^ 'G' C!+^ 'A' C!+^ 0 C!+^ 0 C!+^
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( sum's LSB ) OVER C!+^ ( MSB ) SWAP 8 RSHIFT OVER C! 1+
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( sz end ) 0 C!+^ 0 C!+^ 0 C!+^ SWAP 0x4a + SWAP C! ;
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@ -1717,7 +1717,7 @@ with "390 LOAD"
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( ----- 356 )
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SYSVARS 0x53 + :** EMIT
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: STYPE C@+ ( a len ) 0 DO C@+ EMIT LOOP DROP ;
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: BS 8 EMIT ; : SPC 32 EMIT ;
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: BS 0x8 ; : LF 0xa ; : CR 0xd ; : SPC 0x20 ; : SPC> SPC EMIT ;
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: NL> 0x50 RAM+ C@ ?DUP IF EMIT ELSE 13 EMIT 10 EMIT THEN ;
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: ERR STYPE ABORT ;
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: (uflw) LIT" stack underflow" ERR ;
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@ -1962,11 +1962,11 @@ SYSVARS 0x0c + :** C<*
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( ----- 377 )
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: _ ( a -- a+8 )
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DUP ( a a )
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':' EMIT DUP .x SPC
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4 0 DO DUP @ |L .x .x SPC 2+ LOOP
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':' EMIT DUP .x SPC>
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4 0 DO DUP @ |L .x .x SPC> 2+ LOOP
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DROP ( a )
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8 0 DO
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C@+ DUP 0x20 0x7e =><= NOT IF DROP '.' THEN EMIT
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C@+ DUP SPC 0x7e =><= NOT IF DROP '.' THEN EMIT
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LOOP NL> ;
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: DUMP ( n a -- )
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SWAP 8 /MOD SWAP IF 1+ THEN
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@ -1978,10 +1978,10 @@ SYSVARS 0x0c + :** C<*
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( already at IN( ? )
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IN> @ IN( = IF EXIT THEN
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IN> @ 1- IN> !
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BS SPC BS
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BS EMIT SPC> BS EMIT
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;
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( del is same as backspace )
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: BS? DUP 0x7f = SWAP 0x8 = OR ;
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: BS? DUP 0x7f = SWAP BS = OR ;
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SYSVARS 0x55 + :** KEY?
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: KEY BEGIN KEY? UNTIL ;
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( cont.: read one char into input buffer and returns whether we
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@ -1989,8 +1989,8 @@ SYSVARS 0x55 + :** KEY?
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( ----- 379 )
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: (rdlnc) ( -- c )
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( buffer overflow? same as if we typed a newline )
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IN> @ IN) = IF 0x0a ELSE KEY THEN ( c )
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DUP 0x0a = IF DROP 0xd THEN ( lf? same as cr )
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IN> @ IN) = IF LF ELSE KEY THEN ( c )
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DUP LF = IF DROP CR THEN ( lf? same as cr )
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( backspace? handle and exit )
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DUP BS? IF _bs EXIT THEN
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( echo back )
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@ -2001,7 +2001,7 @@ SYSVARS 0x55 + :** KEY?
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thus ! automatically null-terminates our string )
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IN> @ ! 1 IN> +! ( c )
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( if newline, replace with zero to indicate EOL )
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DUP 0xd = IF DROP 0 THEN ;
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DUP CR = IF DROP 0 THEN ;
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( ----- 380 )
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( Read one line in input buffer and make IN> point to it )
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: (rdln)
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@ -2023,7 +2023,7 @@ SYSVARS 0x55 + :** KEY?
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: RDLN$
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H@ 0x32 ( IN(* ) RAM+ !
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( plus 2 for extra bytes after buffer: 1 for
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the last typed 0x0a and one for the following NULL. )
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the last typed LF and one for the following NULL. )
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IN) IN( - ALLOT
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(infl)
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['] RDLN< ['] C<* **!
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@ -2033,7 +2033,7 @@ SYSVARS 0x55 + :** KEY?
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: LIST
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BLK@
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16 0 DO
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I 1+ DUP 10 < IF SPC THEN . SPC
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I 1+ DUP 10 < IF SPC> THEN . SPC>
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64 I * BLK( + DUP 64 + SWAP DO
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I C@ DUP 0x1f > IF EMIT ELSE DROP LEAVE THEN
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LOOP
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@ -2044,7 +2044,7 @@ SYSVARS 0x55 + :** KEY?
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BEGIN
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WORD DUP @ 0x0401 = ( EOT ) IF DROP EXIT THEN
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FIND NOT IF (parse) ELSE EXECUTE THEN
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C<? NOT IF SPC LIT" ok" STYPE NL> THEN
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C<? NOT IF SPC> LIT" ok" STYPE NL> THEN
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AGAIN ;
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( Read from BOOT C< PTR and inc it. )
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: (boot<)
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@ -2075,7 +2075,7 @@ SYSVARS 0x55 + :** KEY?
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( ----- 385 )
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: LOAD+ BLK> @ + LOAD ;
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( b1 b2 -- )
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: LOADR 1+ SWAP DO I DUP . SPC LOAD LOOP ;
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: LOADR 1+ SWAP DO I DUP . SPC> LOAD LOOP ;
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: LOADR+ BLK> @ + SWAP BLK> @ + SWAP LOADR ;
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( ----- 390 )
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( xcomp core high )
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@ -2168,17 +2168,17 @@ Load range: B402-B403
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: XYPOS! COLS LINES * MOD DUP XYPOS @ CURSOR! XYPOS ! ;
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: AT-XY ( x y -- ) COLS * + XYPOS! ;
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'? NEWLN NIP NOT [IF]
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: NEWLN ( ln -- ) COLS * DUP COLS + SWAP DO 0x20 I CELL! LOOP ;
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: NEWLN ( ln -- ) COLS * DUP COLS + SWAP DO SPC I CELL! LOOP ;
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[THEN]
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: _lf XYMODE C@ IF EXIT THEN
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XYPOS @ COLS / 1+ LINES MOD DUP NEWLN
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COLS * XYPOS! ;
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: _bs 0x20 ( blank ) XYPOS @ TUCK CELL! ( pos ) 1- XYPOS! ;
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: _bs SPC XYPOS @ TUCK CELL! ( pos ) 1- XYPOS! ;
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( ----- 403 )
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: (emit)
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DUP 0x08 = IF DROP _bs EXIT THEN
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DUP 0x0d = IF DROP _lf EXIT THEN
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DUP 0x20 < IF DROP EXIT THEN
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DUP BS? IF DROP _bs EXIT THEN
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DUP CR = IF DROP _lf EXIT THEN
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DUP SPC < IF DROP EXIT THEN
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XYPOS @ CELL!
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XYPOS @ 1+ DUP COLS MOD IF XYPOS! ELSE DROP _lf THEN ;
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: GRID$ 0 XYPOS ! 0 XYMODE C! ;
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@ -2750,7 +2750,7 @@ them. We insert a blank one at the end of those 7. )
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( blank row ) 0xff _data ;
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: CELL! ( c pos )
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0x7800 OR _ctl ( tilenum )
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0x20 - ( glyph ) 0x5f MOD _data ;
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SPC - ( glyph ) 0x5f MOD _data ;
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( ----- 472 )
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: CURSOR! ( new old -- )
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DUP 0x3800 OR _ctl [ TMS_DATAPORT LITN ] PC@
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BIN
cvm/stage.bin
BIN
cvm/stage.bin
Binary file not shown.
@ -256,12 +256,15 @@ KEY -- c Get char c from direct input
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NL> -- Emit newline
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PC! c a -- Spit c to port a
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PC@ a -- c Fetch c from port a
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SPC -- Emit space character
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SPC> -- Emit space character
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WORD -- a Read one word from buffered input and push its
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addr. Always null terminated. If ASCII EOT is
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encountered, a will point to it (it is cons-
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idered a word).
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These ASCII consts are defined:
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BS CR LF SPC
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KEY? and EMIT are ialiases to (key?) and (emit) (see TTY proto-
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col in protocol.txt). KEY is a loop over KEY?.
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@ -2,8 +2,8 @@
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"#" means "assert". We stop at first failure, indicating
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the failure through IO on port 1 )
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: fail SPC ." failed" LF 1 1 PC! BYE ;
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: fail SPC> ." failed" NL> 1 1 PC! BYE ;
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: # IF SPC ." pass" LF ELSE fail THEN ;
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: # IF SPC> ." pass" NL> ELSE fail THEN ;
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: #eq 2DUP SWAP . SPC '=' EMIT SPC . '?' EMIT = # ;
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: #eq 2DUP SWAP . SPC> '=' EMIT SPC> . '?' EMIT = # ;
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