mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-26 17:18:05 +11:00
Compare commits
No commits in common. "24e588019bdb198de828e175c318eeff66ef767e" and "be66d7b4a256fb54e341437d8e91410bc46231d2" have entirely different histories.
24e588019b
...
be66d7b4a2
4
blk/001
4
blk/001
@ -8,8 +8,8 @@ MASTER INDEX
|
||||
280 Z80 boot code 350 ACIA driver
|
||||
370 SD Card driver 390 Inner core
|
||||
420 Core words 480 AT28 Driver
|
||||
490 TRS-80 Recipe 520 Fonts
|
||||
550 TI-84+ Recipe
|
||||
490 TRS-80 Recipe
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
4
blk/054
4
blk/054
@ -10,7 +10,7 @@ MOD a b -- c a % b -> c
|
||||
AND a b -- c a & b -> c
|
||||
OR a b -- c a | b -> c
|
||||
XOR a b -- c a ^ b -> c
|
||||
LSHIFT a u -- c a << u -> c
|
||||
RSHIFT a u -- c a >> u -> c
|
||||
|
||||
Shortcuts: 1+ 2+ 1- 2-
|
||||
|
||||
|
||||
|
||||
2
blk/215
2
blk/215
@ -6,7 +6,7 @@
|
||||
( A, spits an assembled byte, A,, spits an assembled word
|
||||
Both increase PC. To debug, change C, to .X )
|
||||
: A, C, ; : A,, SPLITB A, A, ;
|
||||
: <<3 3 LSHIFT ; : <<4 4 LSHIFT ;
|
||||
: <<3 8 * ; : <<4 16 * ;
|
||||
( As a general rule, IX and IY are equivalent to spitting an
|
||||
extra 0xdd / 0xfd and then spit the equivalent of HL )
|
||||
: IX 0xdd A, HL ; : IY 0xfd A, HL ;
|
||||
|
||||
12
blk/334
12
blk/334
@ -1,12 +0,0 @@
|
||||
CODE RSHIFT ( n u -- n )
|
||||
BC POPqq, ( u )
|
||||
HL POPqq, ( n )
|
||||
chkPS,
|
||||
B C LDrr,
|
||||
B INCr, B DECr, IFNZ,
|
||||
BEGIN,
|
||||
H SRLr, L RRr,
|
||||
DJNZ, AGAIN,
|
||||
THEN,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
13
blk/335
13
blk/335
@ -1,13 +0,0 @@
|
||||
CODE LSHIFT ( n u -- n )
|
||||
BC POPqq, ( u )
|
||||
HL POPqq, ( n )
|
||||
chkPS,
|
||||
B C LDrr,
|
||||
B INCr, B DECr, IFNZ,
|
||||
BEGIN,
|
||||
L SLAr, H RLr,
|
||||
DJNZ, AGAIN,
|
||||
THEN,
|
||||
HL PUSHqq,
|
||||
;CODE
|
||||
|
||||
4
blk/379
4
blk/379
@ -9,8 +9,8 @@
|
||||
: SDCMDR7
|
||||
_sdcSel
|
||||
_cmd ( r )
|
||||
_idle 8 LSHIFT _idle + ( r arg1 )
|
||||
_idle 8 LSHIFT _idle + ( r arg1 arg2 )
|
||||
_idle 256 * _idle + ( r arg1 )
|
||||
_idle 256 * _idle + ( r arg1 arg2 )
|
||||
_sdcDesel
|
||||
;
|
||||
|
||||
|
||||
2
blk/383
2
blk/383
@ -10,6 +10,6 @@
|
||||
SWAP 1+ ( crc a+1 )
|
||||
LOOP
|
||||
DROP ( crc1 )
|
||||
_idle 8 LSHIFT _idle + ( crc2 )
|
||||
_idle 256 * _idle + ( crc2 )
|
||||
_wait DROP _sdcDesel
|
||||
= NOT IF _err THEN ;
|
||||
|
||||
6
blk/499
6
blk/499
@ -3,14 +3,14 @@
|
||||
( 4 256b sectors per block, 10 sec per cyl, 40 cyl max )
|
||||
10 /MOD ( sec cyl )
|
||||
DUP 39 > IF _err THEN
|
||||
8 LSHIFT + ( cylsec )
|
||||
256 * + ( cylsec )
|
||||
;
|
||||
: FD@! ( wref blk -- )
|
||||
1 @DCSTAT NOT IF _err THEN
|
||||
2 LSHIFT ( 4 * -- wr sec )
|
||||
4 * ( wr sec )
|
||||
4 0 DO ( wr sec )
|
||||
DUP I + _cylsec ( wr sec cs )
|
||||
I 8 LSHIFT BLK( + ( wr sec cs addr )
|
||||
I 256 * BLK( + ( wr sec cs addr )
|
||||
1 ROT ROT ( wr sec drv cs addr )
|
||||
4 PICK EXECUTE NOT IF _err THEN
|
||||
LOOP 2DROP ;
|
||||
|
||||
13
blk/520
13
blk/520
@ -1,13 +0,0 @@
|
||||
Fonts
|
||||
|
||||
Fonts are kept in "source" form in the following blocks and
|
||||
then compiled to binary bitmasks by the following code. In
|
||||
source form, fonts are a simple sequence of '.' and 'X'. '.'
|
||||
means empty, 'X' means filled. Glyphs are entered one after the
|
||||
other, starting at 0x21 and ending at 0x7e. To be space
|
||||
efficient in blocks, we align glyphs horizontally in the blocks
|
||||
to fit as many character as we can. For example, a 5x7 font
|
||||
would mean that we would have 12x2 glyphs per block.
|
||||
|
||||
521 Font compiler 530 3x5 font
|
||||
532 5x7 font 536 7x7 font
|
||||
6
blk/521
6
blk/521
@ -1,6 +0,0 @@
|
||||
( Converts "dot-X" fonts to binary "glyph rows". One byte for
|
||||
each row. In a 5x7 font, each glyph thus use 7 bytes.
|
||||
Resulting bytes are aligned to the left of the byte.
|
||||
Therefore, for a 5-bit wide char, "X.X.X" translates to
|
||||
0b10101000. Left-aligned bytes are easier to work with when
|
||||
compositing glyphs. )
|
||||
16
blk/522
16
blk/522
@ -1,16 +0,0 @@
|
||||
: _g ( given a top-left of dot-X in BLK(, spit 5 bin lines )
|
||||
5 0 DO
|
||||
0 3 0 DO ( a r )
|
||||
2 *
|
||||
OVER J 64 * I + + C@ 'X' = IF 1+ THEN
|
||||
LOOP 32 * C, LOOP DROP ;
|
||||
: _l ( spit a line of u glyphs )
|
||||
( u ) 0 DO ( a )
|
||||
DUP I 3 * + _g
|
||||
LOOP DROP ;
|
||||
: CPFNT3x5
|
||||
0 , 0 , 0 C, ( space char )
|
||||
530 LOAD BLK( 21 _l 192 + 21 _l 192 + 21 _l ( 63 )
|
||||
531 LOAD BLK( 21 _l 192 + 10 _l ( 94! )
|
||||
;
|
||||
|
||||
16
blk/530
16
blk/530
@ -1,16 +0,0 @@
|
||||
.X.X.XX.X.XXX...X..X...XX...X...............X.X..X.XX.XX.X.XXXX
|
||||
.X.X.XXXXXX...XX.X.X..X..X.XXX.X............XX.XXX...X..XX.XX..
|
||||
.X........XX.X..X.....X..X..X.XXX...XXX....X.X.X.X..X.XX.XXXXX.
|
||||
......XXXXX.X..X.X....X..X.X.X.X..X.......X..X.X.X.X....X..X..X
|
||||
.X....X.X.X...X.XX.....XX........X......X.X...X.XXXXXXXX...XXX.
|
||||
.XXXXXXXXXXX........X...X..XX..X..X.XX..XXXX.XXXXXX.XXX.XXXXXXX
|
||||
X....XX.XX.X.X..X..X.XXX.X...XXXXX.XX.XX..X.XX..X..X..X.X.X...X
|
||||
XXX.X.XXXXXX......X.......X.X.XXXXXXXX.X..X.XXX.XX.X.XXXX.X...X
|
||||
X.XX..X.X..X.X..X..X.XXX.X....X..X.XX.XX..X.XX..X..X.XX.X.X...X
|
||||
XXXX..XXXXX....X....X...X...X..XXX.XXX..XXXX.XXXX...XXX.XXXXXX.
|
||||
X.XX..X.XXX.XXXXX.XXXXX..XXXXXX.XX.XX.XX.XX.XXXXXXXX..XXX.X....
|
||||
XX.X..XXXX.XX.XX.XX.XX.XX...X.X.XX.XX.XX.XX.X..XX..X....XX.X...
|
||||
X..X..XXXX.XX.XXX.X.XXX..X..X.X.XX.XXXX.X..X..X.X...X...X......
|
||||
XX.X..X.XX.XX.XX..XXXX.X..X.X.X.XX.XXXXX.X.X.X..X....X..X......
|
||||
X.XXXXX.XX.XXXXX...XXX.XXX..X.XXX.X.X.XX.X.X.XXXXXX..XXXX...XXX
|
||||
!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
|
||||
11
blk/531
11
blk/531
@ -1,11 +0,0 @@
|
||||
X.....X.......X....XX...X...X...XX..XX.......................X.
|
||||
.X.XX.X...XX..X.X.X...X.X........X.X.X.X.XXX..X.XX..XX.XX.XXXXX
|
||||
.....XXX.X...XXX.XXX.X.XXX..X...XXX..X.XXXX.XX.XX.XX.XX..XX..X.
|
||||
...XXXX.XX..X.XXX.X...XXX.X.X...XX.X.X.X.XX.XX.XXX..XXX....X.X.
|
||||
...XXXXX..XX.XX.XXX..XX.X.X.X.XX.X.X.XXX.XX.X.X.X....XX..XX..XX
|
||||
...................XX.X.XX.....................................
|
||||
X.XX.XX.XX.XX.XXXX.X..X..X..XX
|
||||
X.XX.XX.X.X..X..XXX...X...XXX.
|
||||
X.XX.XXXX.X..X.XX..X..X..X....
|
||||
XXX.X.X.XX.X.X.XXX.XX.X.XX....
|
||||
`abcdefghijklmnopqrstuvwxyz{|}~
|
||||
17
blk/532
17
blk/532
@ -1,17 +0,0 @@
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
...............................................................
|
||||
|
||||
|
||||
6
blk/550
6
blk/550
@ -1,6 +0,0 @@
|
||||
TI-84+ Recipe
|
||||
|
||||
Support code for the TI-84+ recipe. Contains drivers for the
|
||||
keyboard and LCD.
|
||||
|
||||
551 LCD
|
||||
16
blk/551
16
blk/551
@ -1,16 +0,0 @@
|
||||
TI-84+ LCD driver
|
||||
|
||||
Implement (emit) on TI-84+ (for now)'s LCD screen. Load with
|
||||
"555 LOAD".
|
||||
|
||||
The screen is 96x64 pixels. The 64 rows are addressed directly
|
||||
with CMD_ROW but columns are addressed in chunks of 6 or 8 bits
|
||||
(there are two modes).
|
||||
|
||||
In 6-bit mode, there are 16 visible columns. In 8-bit mode,
|
||||
there are 12.
|
||||
|
||||
Note that "X-increment" and "Y-increment" work in the opposite
|
||||
way than what most people expect. Y moves left and right, X
|
||||
moves up and down.
|
||||
(cont.)
|
||||
16
blk/552
16
blk/552
@ -1,16 +0,0 @@
|
||||
# Z-Offset
|
||||
|
||||
This LCD has a "Z-Offset" parameter, allowing to offset rows on
|
||||
the screen however we wish. This is handy because it allows us
|
||||
to scroll more efficiently. Instead of having to copy the LCD
|
||||
ram around at each linefeed (or instead of having to maintain
|
||||
an in-memory buffer), we can use this feature.
|
||||
|
||||
The Z-Offet goes upwards, with wrapping. For example, if we
|
||||
have an 8 pixels high line at row 0 and if our offset is 8,
|
||||
that line will go up 8 pixels, wrapping itself to the bottom of
|
||||
the screen.
|
||||
|
||||
The principle is this: The active line is always the bottom
|
||||
one. Therefore, when active row is 0, Z is FNT_HEIGHT+1, when
|
||||
row is 1, Z is (FNT_HEIGHT+1)*2, When row is 8, Z is 0. (cont.)
|
||||
16
blk/553
16
blk/553
@ -1,16 +0,0 @@
|
||||
# 6/8 bit columns and smaller fonts
|
||||
|
||||
If your glyphs, including padding, are 6 or 8 pixels wide,
|
||||
you're in luck because pushing them to the LCD can be done in a
|
||||
very efficient manner. Unfortunately, this makes the LCD
|
||||
unsuitable for a Collapse OS shell: 6 pixels per glyph gives us
|
||||
only 16 characters per line, which is hardly usable.
|
||||
|
||||
This is why we have this buffering system. How it works is that
|
||||
we're always in 8-bit mode and we hold the whole area (8 pixels
|
||||
wide by FNT_HEIGHT high) in memory. When we want to put a glyph
|
||||
to screen, we first read the contents of that area, then add
|
||||
our new glyph, offsetted and masked, to that buffer, then push
|
||||
the buffer back to the LCD. If the glyph is split, move to the
|
||||
next area and finish the job.
|
||||
(cont.)
|
||||
3
blk/554
3
blk/554
@ -1,3 +0,0 @@
|
||||
That being said, it's important to define clearly what CURX and
|
||||
CURY variable mean. Those variable keep track of the current
|
||||
position *in pixels*, in both axes.
|
||||
16
blk/555
16
blk/555
@ -1,16 +0,0 @@
|
||||
( Required config: TI_MEM )
|
||||
: TI_MEM+ [ TI_MEM LITN ] + ;
|
||||
: LCD_PORT_CMD 0x10 ;
|
||||
: LCD_PORT_DATA 0x11 ;
|
||||
: FNT_WIDTH 3 ;
|
||||
: FNT_HEIGHT 5 ;
|
||||
( Current Y position on the LCD, that is, where we're going to
|
||||
spit our next glyph. )
|
||||
: LCD_CURY 0 TI_MEM+ ;
|
||||
: LCD_CURX 1 TI_MEM+ ;
|
||||
( two pixel buffers that are 8 pixels wide (1b) by FNT_HEIGHT
|
||||
pixels high. This is where we compose our resulting pixels
|
||||
blocks when spitting a glyph. )
|
||||
: LCD_BUF 2 TI_MEM+ ;
|
||||
|
||||
1 2 LOADR+
|
||||
11
blk/556
11
blk/556
@ -1,11 +0,0 @@
|
||||
: _wait ( Wait until the lcd is ready to receive a command )
|
||||
( When 7th bit is cleared, we can send a new command )
|
||||
BEGIN LCD_PORT_CMD PC@ 0x80 AND NOT UNTIL ;
|
||||
: _cmd LCD_PORT_CMD PC! _wait ;
|
||||
: _data! LCD_PORT_DATA PC! _wait ;
|
||||
: _data@ LCD_PORT_DATA PC@ _wait ;
|
||||
: LCDOFF 0x02 ( CMD_DISABLE ) _cmd ;
|
||||
: _col! ( col -- )
|
||||
0x20 ( CMD_COL ) + _cmd ;
|
||||
: _row! ( row -- )
|
||||
0x80 ( CMD_ROW ) + _cmd ;
|
||||
3
blk/557
3
blk/557
@ -1,3 +0,0 @@
|
||||
( Load a "glyph line" from buffer, left part being in MSB and
|
||||
right part being in LSB. )
|
||||
: _gl@
|
||||
5
blk/558
5
blk/558
@ -1,5 +0,0 @@
|
||||
: _glyph> ( a -- )
|
||||
LCD_CURY C@ _row! LCD_CURX C@ 8 /MOD _col! ( a coff )
|
||||
0x05 ( XINC ) _cmd _data@ DROP
|
||||
FNT_HEIGHT 0 DO LOOP
|
||||
|
||||
BIN
emul/forth.bin
BIN
emul/forth.bin
Binary file not shown.
Loading…
Reference in New Issue
Block a user