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3 Commits

Author SHA1 Message Date
Virgil Dupras
abafd6d67b ti84: fix glitches 2020-05-09 15:31:41 -04:00
Virgil Dupras
e06d6c5345 ti84: we have a prompt 2020-05-09 14:28:55 -04:00
Virgil Dupras
4ce0727c72 ti84: kbd driver wip 2020-05-09 11:55:58 -04:00
14 changed files with 92 additions and 8 deletions

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@ -4,6 +4,7 @@ VARIABLE XCURRENT
: XCOFF 0x02 RAM+ CURRENT* ! ; : XCOFF 0x02 RAM+ CURRENT* ! ;
: (xentry) XCON (entry) XCOFF ; : (xentry) XCON (entry) XCOFF ;
: XCREATE (xentry) 11 C, ;
: XCODE XCON CODE XCOFF ; : XCODE XCON CODE XCOFF ;

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@ -5,4 +5,11 @@ CODE 2DROP
chkPS, chkPS,
;CODE ;CODE
( a b -- a b a b )
CODE 2DUP
HL POPqq, ( b ) DE POPqq, ( a )
chkPS,
DE PUSHqq, HL PUSHqq,
DE PUSHqq, HL PUSHqq,
;CODE

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@ -7,7 +7,6 @@
SWAP DROP SWAP DROP
; ;
: 2DUP OVER OVER ;
: 2OVER 3 PICK 3 PICK ; : 2OVER 3 PICK 3 PICK ;
: 2SWAP 3 ROLL 3 ROLL ; : 2SWAP 3 ROLL 3 ROLL ;

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@ -3,4 +3,4 @@ TI-84+ Recipe
Support code for the TI-84+ recipe. Contains drivers for the Support code for the TI-84+ recipe. Contains drivers for the
keyboard and LCD. keyboard and LCD.
551 LCD 551 LCD 564 Keyboard

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@ -10,5 +10,5 @@
( Changes the current line and go back to leftmost column ) ( Changes the current line and go back to leftmost column )
: _lf : _lf
LCD_CURY C@ FNTH 1+ + DUP 63 > IF DROP 0 THEN LCD_CURY C@ FNTH 1+ + DUP 63 > IF DROP 0 THEN
DUP _clrln DUP FNTH 1+ _zoff! DUP _clrln DUP FNTH 1+ + _zoff!
LCD_CURY C! 0 LCD_CURX C! ; LCD_CURY C! 0 LCD_CURX C! ;

16
blk/564 Normal file
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@ -0,0 +1,16 @@
Keyboard driver
Low layer range: 566-569
Implement a (key) word that interpret keystrokes from the
builtin keyboard. The word waits for a digit to be pressed and
returns the corresponding ASCII value.
This routine waits for a key to be pressed, but before that, it
waits for all keys to be de-pressed. It does that to ensure
that two calls to _wait only go through after two actual key
presses (otherwise, the user doesn't have enough time to
de-press the button before the next _wait routine registers the
same key press as a second one).
(cont.)

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@ -0,0 +1,6 @@
Sending 0xff to the port resets the keyboard, and then we have
to send groups we want to "listen" to, with a 0 in the group
bit. Thus, to know if *any* key is pressed, we send 0xff to
reset the keypad, then 0x00 to select all groups, if the result
isn't 0xff, at least one key is pressed.

14
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@ -0,0 +1,14 @@
( Requires KBD_MEM, KBD_PORT )
( gm -- pm, get pressed keys mask for group mask gm )
CODE _get
HL POPqq,
chkPS,
DI,
A 0xff LDrn,
KBD_PORT OUTnA,
A L LDrr,
KBD_PORT OUTnA,
KBD_PORT INAn,
EI,
L A LDrr, HL PUSHqq,
;CODE

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@ -0,0 +1,16 @@
( wait until all keys are de-pressed. To avoid repeat keys, we
require 64 subsequent polls to indicate all depressed keys.
all keys are considered depressed when the 0 group returns
0xff. )
: _wait 64 BEGIN 0 _get 0xff = NOT IF DROP 64 THEN
1- DUP NOT UNTIL DROP ;
( digits table. seach row represents a group. 0 means
unsupported. no group 7 because it has no key. )
CREATE _dtbl
0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C,
0xd C, '+' C, '-' C, '*' C, '/' C, '^' C, 0 C, 0 C,
0 C, '3' C, '6' C, '9' C, ')' C, 0 C, 0 C, 0 C,
'.' C, '2' C, '5' C, '8' C, '(' C, 0 C, 0 C, 0 C,
'0' C, '1' C, '4' C, '7' C, ',' C, 0 C, 0 C, 0 C,
0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0x80 ( alpha ) C,
0 C, 0 C, 0 C, 0 C, 0 C, 0x81 ( 2nd ) C, 0 C, 0x7f C,

9
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@ -0,0 +1,9 @@
( alpha table. same as _dtbl, for when we're in alpha mode. )
CREATE _atbl
0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C, 0 C,
0xd C, '"' C, 'w' C, 'r' C, 'm' C, 'h' C, 0 C, 0 C,
'?' C, 0 C, 'v' C, 'q' C, 'l' C, 'g' C, 0 C, 0 C,
':' C, 'z' C, 'u' C, 'p' C, 'k' C, 'f' C, 'c' C, 0 C,
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,

13
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@ -0,0 +1,13 @@
: _
0 ( gid ) 0 ( dummy )
BEGIN ( loop until a digit is pressed )
DROP
1+ DUP 7 = IF DROP 0 THEN ( inc gid )
1 OVER LSHIFT 0xff -^ ( group dmask ) _get
DUP 0xff = NOT UNTIL
( gid dmask )
0xff XOR ( dpos ) 0 ( dindex )
BEGIN 1+ 2DUP RSHIFT NOT UNTIL 1-
( gid dpos dindex ) SWAP DROP
( gid dindex ) SWAP 8 * + _dtbl + C@ _wait ;
: (key) 0 ( dummy ) BEGIN DROP _ DUP UNTIL ;

Binary file not shown.

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@ -21,7 +21,7 @@
#define INTERRUPT_PORT 0x03 #define INTERRUPT_PORT 0x03
#define LCD_CMD_PORT 0x10 #define LCD_CMD_PORT 0x10
#define LCD_DATA_PORT 0x11 #define LCD_DATA_PORT 0x11
#define MAX_ROMSIZE 0x2000 #define MAX_ROMSIZE 0x4000
static xcb_connection_t *conn; static xcb_connection_t *conn;
static xcb_screen_t *screen; static xcb_screen_t *screen;

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@ -1,27 +1,30 @@
0x8000 CONSTANT RAMSTART 0x8000 CONSTANT RAMSTART
0xb000 CONSTANT RS_ADDR 0xb000 CONSTANT RS_ADDR
RAMSTART 0x70 + CONSTANT LCD_MEM RAMSTART 0x70 + CONSTANT LCD_MEM
0x01 CONSTANT KBD_PORT
212 LOAD ( z80 assembler ) 212 LOAD ( z80 assembler )
262 LOAD ( xcomp ) 262 LOAD ( xcomp )
522 LOAD ( font compiler ) 522 LOAD ( font compiler )
: CODE XCODE ; : CODE XCODE ;
: IMMEDIATE XIMM ; : IMMEDIATE XIMM ;
: (entry) (xentry) ; : (entry) (xentry) ;
: CREATE XCREATE ; ( for KBD tbls )
: : [ ' X: , ] ; : : [ ' X: , ] ;
CURRENT @ XCURRENT ! CURRENT @ XCURRENT !
282 LOAD ( boot.z80 ) 282 LOAD ( boot.z80 )
393 LOAD ( icore low ) 393 LOAD ( icore low )
555 557 LOADR ( ti low ) 555 557 LOADR ( LCD low )
566 569 LOADR ( KBD low )
415 LOAD ( icore high ) 415 LOAD ( icore high )
(entry) ~FNT CPFNT3x5 (entry) ~FNT CPFNT3x5
(entry) _ (entry) _
( Update LATEST ) ( Update LATEST )
PC ORG @ 8 + ! PC ORG @ 8 + !
422 437 XPACKR ( core ) 422 437 XPACKR ( core )
558 560 XPACKR ( ti high ) 558 560 XPACKR ( LCD high )
438 446 XPACKR ( print fmt ) 438 451 XPACKR ( print fmt readln )
," : _ LCD$ LIT< Hello (print) LIT< World! (print) BYE ; _ " ," : _ LCD$ (ok) RDLN$ ; _ "
ORG @ 256 /MOD 2 PC! 2 PC! ORG @ 256 /MOD 2 PC! 2 PC!
H@ 256 /MOD 2 PC! 2 PC! H@ 256 /MOD 2 PC! 2 PC!