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ti84: implement a-lock

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There's a bug where the first char after a-lock isn't a-modded. I
have troubles figuring it out for now. It feels like deja vu. I
think I had the same problem with asm.
This commit is contained in:
Virgil Dupras 2020-05-10 09:37:36 -04:00
parent a476773813
commit 06a4674317
3 changed files with 16 additions and 5 deletions
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4
blk/568
View File

@ -7,3 +7,7 @@ CREATE _atbl
0x20 C, 'Y' C, 'T' C, 'O' C, 'J' C, 'E' C, 'B' C, 0 C,
0 C, 'X' C, 'S' C, 'N' C, 'I' C, 'D' C, 'A' C, 0x80 C,
0 C, 0 C, 0 C, 0 C, 0 C, 0x81 ( 2nd ) C, 0 C, 0x7f C,
: _2nd@ 0 [ KBD_MEM LITN ] BIT@ ;
: _2nd! 0 [ KBD_MEM LITN ] BIT! ;
: _alock@ 1 [ KBD_MEM LITN ] BIT@ ;
: _alock^ _alock@ NOT 1 [ KBD_MEM LITN ] BIT! ;

14
blk/570
View File

@ -1,6 +1,12 @@
: _tbl^ ( swap input tbl )
_atbl = IF _dtbl ELSE _atbl THEN ;
: (key)
_dtbl 0 ( dummy ) BEGIN ( tbl 0 )
DROP DUP ( tbl ) _gti + C@
DUP 0x80 = IF ( alpha ) 2DROP _atbl 0 THEN
DUP UNTIL ( tbl c -- loop if null ) SWAP DROP
0 _2nd! 0 ( lastchr ) BEGIN
_alock@ IF _atbl ELSE _dtbl THEN
OVER 0x80 ( alpha ) =
IF _tbl^ _2nd@ IF _alock^ THEN THEN
SWAP 0x81 = _2nd!
_gti + C@
DUP 0 0x80 >< UNTIL ( loop if not in range )
_wait ;
: KBD$ 0 [ KBD_MEM LITN ] C! ;

3
recipes/ti84/xcomp.fs
View File

@ -1,6 +1,7 @@
0x8000 CONSTANT RAMSTART
0xb000 CONSTANT RS_ADDR
RAMSTART 0x70 + CONSTANT LCD_MEM
RAMSTART 0x72 + CONSTANT KBD_MEM
0x01 CONSTANT KBD_PORT
212 LOAD ( z80 assembler )
262 LOAD ( xcomp )
@ -25,6 +26,6 @@ PC ORG @ 8 + !
422 437 XPACKR ( core )
558 560 XPACKR ( LCD high )
438 451 XPACKR ( print fmt readln )
," : _ LCD$ (ok) RDLN$ ; _ "
," : _ LCD$ KBD$ (ok) RDLN$ ; _ "
ORG @ 256 /MOD 2 PC! 2 PC!
H@ 256 /MOD 2 PC! 2 PC!