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04_console.f
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.( including 04_console.f ) cr
console definitions
// Console I/O
\ ************ 8042 direct access **********************************************************************
create SCAN2ASCII \ == scan code ==
$00 c, \ db 0 ; 0
$1B c, \ db 01bh ;esc ; 1
$31 c, $32 c, $33 c, $34 c, $35 c, $36 c, \ db '1234567890-=' ; 2-13
$37 c, $38 c, $39 c, $30 c, $2D c, $3D c,
$08 c, $09 c, \ db 08h,09h ;backspace, tab ; 14,15
$71 c, $77 c, $65 c, $72 c, $74 c, $79 c, \ db 'qwertyuiop[]' ; 16-27
$75 c, $69 c, $6F c, $70 c, $5B c, $5D c,
$0D c, $01 c, \ db 00dh,000h ;enter, left control ; 28,29 ScrolLock 收不到，改用 Ctrol
$61 c, $73 c, $64 c, $66 c, $67 c, $68 c, \ db 'asdfghjkl;',027h,'`' ; 30-41
$6A c, $6B c, $6C c, $3B c, $27 c, $60 c,
$00 c, \ db 000h ;left shift ; 42
$5C c, \ db '\' ; 43
$7A c, $78 c, $63 c, $76 c, $62 c, $6E c, \ db 'zxcvbnm,./' ; 44-53
$6D c, $2C c, $2E c, $2F c,
$00 c, \ db 000h ;right shift ; 54
$2A c, \ db '*' ;* in keypad ; 55
$00 c, \ db 000h ;left alt ; 56
$20 c, \ db ' ' ;space ; 57
$00 c, \ db 000h ;capslock ; 58
$00 c, $00 c, $0000000000000000 , \ times 10 db 000h ;f1-f10 ; 59-68
$00 c, $00 c, \ db 000h,000h ;numlock, scroll lock ; 69-70
$2D000000 d, $2B000000 d, \ db 0,0,0,'-',0,0,0,'+',0,0,0,0,0 ;keys in keypad ; 71-83
$00 c, $00 c, $00 c, $00 c, $00 c,
$00 c, $00 c, \ db 000h,000h ;f11, f12 ; 84,85
\ Shift按下時的ScanCode到ASCII碼的轉換錶，若無對應ASCII碼，則值為0
create SCAN2ASCSHIFT
$00 c, \ DB 0 0
$1B c, \ DB 01BH 1 ;ESC
$21 c, $40 c, $23 c, $24 c, $25 c, $5E c, \ DB '!@#$%^&*()_+' 2-13
$26 c, $2A c, $28 c, $29 c, $5F c, $2B c,
$08 c, $09 c, \ DB 08H,09H 14,15 ;BACKSPACE, TAB
$51 c, $57 c, $45 c, $52 c, $54 c, $59 c, \ DB 'QWERTYUIOP{}' 16-27
$55 c, $49 c, $4F c, $50 c, $7B c, $7D c,
$0D c, $01 c, \ DB 00DH,000H 28,29 ;ENTER, LEFT CONTROL
$41 c, $53 c, $44 c, $46 c, $47 c, $48 c, \ DB 'ASDFGHJKL:"~' 30-41
$4A c, $4B c, $4C c, $3A c, $22 c, $7E c,
$00 c, \ DB 000H 42 ;LEFT SHIFT
$7C c, \ DB '|' 43
$5A c, $58 c, $43 c, $56 c, $42 c, $4E c, \ DB 'ZXCVBNM<>?' 44-53
$4D c, $3C c, $3E c, $3F c,
$00 c, \ DB 000H 54 ;RIGHT SHIFT
$2A c, \ DB '*' 55 ;* in KEYPAD
$00 c, \ DB 000H 56 ;LEFT ALT
$20 c, \ DB ' ' 57
$00 c, \ DB 000H 58 ;CAPSLOCK
$00 c, $00 c, $00 c, $00 c, $00 c, $00 c, \ DB 000H X 10 59-68 ;F1-F10
$00 c, $00 c, $00 c, $00 c, $00 c, $00 c, \ DB 000H,000H 69-70 ;NUMLOCK, SCROLL LOCK
$37 c, $38 c, $39 c, $2D c, $34 c, $35 c, \ DB '789-456+1230.' 71-83 ;KEYPAD When NUMLOCK is on
$36 c, $2B c, $31 c, $32 c, $33 c, $30 c,
$2E c,
$00 c, $00 c, \ DB 000H,000H 84,85 ;F11, F12
\ scan2asc ( scan_code table -- ASCII_code )
\ Translate keyboard scan code from 8042 port 60h to ASCII code
\ Given a normal table SCAN2ASCII or shifted table SCAN2ASCSHIFT.
: scan2asc
swap dup \ t c c
85 > \ t c c>85
if \ t c cmp bl,85 ; 85 key only
\ jbe .be85 ; below or equal 85
drop 0 \ t 0 xor rbx,rbx ; ignore the scan code.
then \ t c .be85: xor rax,rax
\ t c mov al,[SCAN2ASCII + rbx]
+ \ &table[c]
c@ \ table[c]
; \ push rax
\ $NEXT
\ kbcobf ( -- f )
\ check KBC OBF
: kbcobf
$64 iob@
$01 and
;
\ This word will need a green version
: <waitOBF>
begin
( hlt 目前還不能用，待後面 Time tick 建設完畢以後再用新版的置換省電功能進來 )
kbcobf ( wait until obf raised )
until
;
create 'waitOBF ' <waitOBF> , \ make it a chang-able function for green version later
: waitOBF
'waitOBF @execute
;
\ waitkscan ( -- scancode )
\ wait for a key press and then return scan code
: waitkscan
begin
waitOBF
$60 iob@ \ p60
dup \ p60 p60
$80 and 0 = \ p60 p60%80h==0? Make code
if \ p60
1 \ p60 1 success it's a make code, done, return the make code.
else
drop 0 \ failed it's a break code
then
until ;
\ p2scr ( position -- addr )
\ Translate cursor position to text video buffer address hcchen5600 2011/08/07 16:46:22
\ for eforth64 MBR floppy system only.
: p2scr
2 * $b8000 +
;
\ <showcursor> ( w -- )
\ Show cursor, the given word is your cursor character and attribute.
\ w=0x07DB to show cursor, w=0 to hide cursor.
: <showcursor>
position @ p2scr w!
;
\ showcursor ( -- )
\ Show cursor hcchen5600 2011/08/07 16:46:22
\ for eforth64 MBR floppy system only.
: showcursor
$07DB <showcursor>
;
\ hidecursor ( -- )
\ Hide cursor hcchen5600 2011/08/07 16:46:22
\ for eforth64 MBR floppy system only.
: hidecursor
0 <showcursor>
;
\ ?rx ( -- F | ascii T )
\ wait for a key press and then return ASCII code
: console?rx
\ showcursor
kbcobf if
$60 iob@ dup dup dup $80 and 0 = \ p60 p60 p60 p60&80h==0?
if \ p60 p60 p60 it's a make code
42 = if \ p60 p60 p60==42? Left Shift key's scan code
drop drop waitkscan
SCAN2ASCSHIFT scan2asc 1 \ 先按一下 shift 再按要 shift 的 key, 這是最簡單的辦法了。
else
54 = if
drop waitkscan
SCAN2ASCSHIFT scan2asc 1
else
SCAN2ASCII scan2asc 1
then
then
else
drop drop drop 0
then
else
0
then
\ hidecursor
;
\ scroll ( -- )
\ text screen scroll up one line
: <scroll>
$b8000 dup 80 2 * + swap 80 24 * 2 * cmove
80 24 * p2scr 80 2 * 0 fill
;
create 'scroll ' <scroll> ,
: scroll
'scroll @execute
;
\ TX! ( c -- )
\ Send character c to the output device.
: consoletx!
dup 8 = \ c c=BackSpace?
if \ c
drop \ empty
position @ 1- 0 max
position !
exit
then \ c
dup 10 = \ c c=LineFeed
if \ c
drop
position @ 80 + \ p+80 equals to a Line-Feed
2000 over \ p+80 2000 p+80 80*25==2000
<= if \ p+80
scroll 80 - \ p
then \ p+80
position ! \ empty
exit
then \ c
dup 13 = \ c c=CarriageReturn
if \ c
drop
position @ dup \ p p
80 mod - \ p-(p%80)
position ! \ empty
exit
then \ c
$0700 + \ $07cc
position @ p2scr w! \ empty
position @ 1+ dup 2000 >= \ p' f
if \ p' empty
scroll
80 24 * p2scr 80 2 * 0 fill
80 - \ p'-80
then \ empty
position !
;
80 18 * position !
' console?rx '?key ! \ 畫龍
' consoletx! 'emit ! \ 點睛
.( -------------------- eforth64 console ready -------------------- ) cr