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ti84: kbd driver wip
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2f1e635b9d
commit
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1
blk/263
1
blk/263
@ -4,6 +4,7 @@ VARIABLE XCURRENT
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: XCOFF 0x02 RAM+ CURRENT* ! ;
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: (xentry) XCON (entry) XCOFF ;
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: XCREATE (xentry) 11 C, ;
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: XCODE XCON CODE XCOFF ;
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7
blk/312
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@ -5,4 +5,11 @@ CODE 2DROP
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chkPS,
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;CODE
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( a b -- a b a b )
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CODE 2DUP
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HL POPqq, ( b ) DE POPqq, ( a )
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chkPS,
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DE PUSHqq, HL PUSHqq,
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DE PUSHqq, HL PUSHqq,
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;CODE
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1
blk/433
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blk/433
@ -7,7 +7,6 @@
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SWAP DROP
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;
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: 2DUP OVER OVER ;
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: 2OVER 3 PICK 3 PICK ;
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: 2SWAP 3 ROLL 3 ROLL ;
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2
blk/550
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blk/550
@ -3,4 +3,4 @@ TI-84+ Recipe
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Support code for the TI-84+ recipe. Contains drivers for the
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keyboard and LCD.
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551 LCD
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551 LCD 564 Keyboard
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16
blk/564
Normal file
16
blk/564
Normal file
@ -0,0 +1,16 @@
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Keyboard driver
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Low layer range: 566-568
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Implement a (key) word that interpret keystrokes from the
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builtin keyboard. The word waits for a digit to be pressed and
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returns the corresponding ASCII value.
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This routine waits for a key to be pressed, but before that, it
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waits for all keys to be de-pressed. It does that to ensure
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that two calls to _wait only go through after two actual key
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presses (otherwise, the user doesn't have enough time to
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de-press the button before the next _wait routine registers the
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same key press as a second one).
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(cont.)
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6
blk/565
Normal file
6
blk/565
Normal file
@ -0,0 +1,6 @@
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Sending 0xff to the port resets the keyboard, and then we have
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to send groups we want to "listen" to, with a 0 in the group
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bit. Thus, to know if *any* key is pressed, we send 0xff to
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reset the keypad, then 0x00 to select all groups, if the result
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isn't 0xff, at least one key is pressed.
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14
blk/566
Normal file
14
blk/566
Normal file
@ -0,0 +1,14 @@
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( Requires KBD_MEM, KBD_PORT )
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( gm -- pm, get pressed keys mask for group mask gm )
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CODE _get
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HL POPqq,
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chkPS,
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DI,
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A 0xff LDrn,
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KBD_PORT OUTnA,
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A L LDrr,
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KBD_PORT OUTnA,
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KBD_PORT INAn,
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EI,
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L A LDrr, HL PUSHqq,
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;CODE
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blk/567
Normal file
16
blk/567
Normal file
@ -0,0 +1,16 @@
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( wait until all keys are de-pressed. To avoid repeat keys, we
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require 64 subsequent polls to indicate all depressed keys.
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all keys are considered depressed when the 0 group returns
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0xff. )
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: _wait 64 0 DO 0 _get 0xff = UNTIL ;
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( digits table. seach row represents a group. 0 means
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unsupported. no group 7 because it has no key. )
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CREATE _dtbl
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0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C,
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0xd C, '+' C, '-' C, '*' C, '/' C, '^' C, 0 C, 0 C,
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0 C, '3' C, '6' C, '9' C, ')' C, 0 C, 0 C, 0 C,
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'.' C, '2' C, '5' C, '8' C, '(' C, 0 C, 0 C, 0 C,
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'0' C, '1' C, '4' C, '7' C, ',' C, 0 C, 0 C, 0 C,
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0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0x80 ( alpha ) C,
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0 C, 0 C, 0 C, 0 C, 0 C, 0x81 ( 2nd ) C, 0 C, 0x7f C,
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9
blk/568
Normal file
9
blk/568
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@ -0,0 +1,9 @@
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( alpha table. same as _dtbl, for when we're in alpha mode. )
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CREATE _atbl
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0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C,
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0xd C, '"' C, 'w' C, 'r' C, 'm' C, 'h' C, 0 C, 0 C,
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'?' C, 0 C, 'v' C, 'q' C, 'l' C, 'g' C, 0 C, 0 C,
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':' C, 'z' C, 'u' C, 'p' C, 'k' C, 'f' C, 'c' C, 0 C,
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0x20 C, 'y' C, 't' C, 'o' C, 'j' C, 'e' C, 'b' C, 0 C,
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0 C, 'x' C, 's' C, 'n' C, 'i' C, 'd' C, 'a' C, 0x80 C,
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0 C, 0 C, 0 C, 0 C, 0 C, 0x81 ( 2nd ) C, 0 C, 0x7f C,
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13
blk/569
Normal file
13
blk/569
Normal file
@ -0,0 +1,13 @@
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: (key)
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0 ( gid ) 0 ( dummy )
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BEGIN ( loop until a digit is pressed )
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DROP
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1+ DUP 7 = IF DROP 0 THEN ( inc gid )
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1 OVER LSHIFT 0xff -^ ( group dmask ) _get
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DUP 0xff = NOT UNTIL
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( gid dmask )
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0xff XOR ( dpos ) 0 ( dindex )
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BEGIN 2DUP RSHIFT IF 1+ 1 ELSE 0 THEN UNTIL
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( gid dpos dindex ) SWAP DROP
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( gid dindex ) SWAP 8 * + _dtbl + C@
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;
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BIN
emul/forth.bin
BIN
emul/forth.bin
Binary file not shown.
@ -1,27 +1,30 @@
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0x8000 CONSTANT RAMSTART
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0xb000 CONSTANT RS_ADDR
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RAMSTART 0x70 + CONSTANT LCD_MEM
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0x01 CONSTANT KBD_PORT
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212 LOAD ( z80 assembler )
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262 LOAD ( xcomp )
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522 LOAD ( font compiler )
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: CODE XCODE ;
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: IMMEDIATE XIMM ;
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: (entry) (xentry) ;
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: CREATE XCREATE ; ( for KBD tbls )
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: : [ ' X: , ] ;
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CURRENT @ XCURRENT !
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282 LOAD ( boot.z80 )
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393 LOAD ( icore low )
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555 557 LOADR ( ti low )
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555 557 LOADR ( LCD low )
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566 569 LOADR ( KBD low )
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415 LOAD ( icore high )
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(entry) ~FNT CPFNT3x5
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(entry) _
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( Update LATEST )
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PC ORG @ 8 + !
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422 437 XPACKR ( core )
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558 560 XPACKR ( ti high )
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558 560 XPACKR ( LCD high )
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438 446 XPACKR ( print fmt )
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," : _ LCD$ LIT< Hello (print) LIT< World! (print) BYE ; _ "
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," : _ LCD$ LIT< Hello (print) (key) (emit) BYE ; _ "
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ORG @ 256 /MOD 2 PC! 2 PC!
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H@ 256 /MOD 2 PC! 2 PC!
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