; Text CodePage = cp1251
; Ïðåäâàðèòåëüíî íåîáõîäèìî óñòàíîâèòü ðåæèì ââîäà ñêàíêîäîâ
;set_ckancode_mode:
; xor ecx, ecx
; inc ecx
; mcall 66,1 ; óñòàíîâêà ðåæèìà ââîäà ñêàíêîäîâ
; ret
;-----------------------------------------------------
load_port_FE: ; äåøèôðîâêà ïîðà FE - êëàâèàòóðà Spectruma
; âõîä ax - íîìåð ïîðòà al = 0xFE ah = [ñòàðøèé áàéò àäðåñà ïîðòà]
; âûõîä - al - ñîäåðæèìîå ïîðòà êëàâèàòóðû îñòàëüíûå áàéòû ïðîèçâîëüíû
; ïðîèçâîäèòñÿ ïîëíàÿ äåøèôðàöèÿ ïîðòà c ïðîèçâîëüíûìè çíà÷åíèÿìè
; ñòàðøåãî áàéòà (êàê â íàñòîÿùåì ñïåêêå)
cmp al, 0xFE
jne .ret
push esi
push ebx
mov esi, zx_keys ; áóäåì âû÷èòûâàòü èç áóôåðà êëàâû
mov bl, 0xFF
cld
rept 8
{
lodsb
shr ah, 1
jc @f
and bl, al
@@:
}
mov al, bl
pop ebx
pop esi
.ret:
ret
;------------------------------------------------------
; ×òåíèå êëàâèàòóðû PC è ïåðåâîä åå ñîñòîÿíèÿ â áóôåð ïîðòà FE ñïåêòðóìà
load_keys: ; ðåãèñòðû íå ñîõðàíÿåò
mov edi, scancodes_tbl ; Àäðåñ òàáëèöû îáðàáîòêè ñêàíêîäîâ
mov ebx, 0xFFFFFFE0 ; âñïîìîãàòåëüíàÿ ìàñêà
mov edx, dword [zx_keys] ; áóôåð êëàâèàòóðû ñïåêòðóìà
mov esi, dword [zx_keys+4] ;
.loop: ; öèêë âûáîðà êëàâèø èç áóôåðà
mov ecx, ebx ; ñîõðàíèòü ebx
mcall 66,3 ; ïðîâåðèòü óïðàâëÿþùèå êëàâèøè
mov ebx, ecx ; âîññòàíîâèòü ebx
and al, 0x80 ; ïðîâåðèòü NumLock
mov byte [num_lock_flag], al
.loop_1:
mcall 2 ; çàáðàòü êîä íàæàòîé êëàâèøè
cmp eax, 1
jne .load ; åñëè áóôåð íå ïóñò
.exit:
mov dword [zx_keys], edx
mov dword [zx_keys+4], esi
.ret:
ret
.ext_key:
mov byte [ext_flag], 1
jmp .loop
.load:
cmp ah, 250
jne @f
or edx, 0x02000001 ; ñòèðàåì CAPS LOCK {, NumLock, ScrollLock - ?}
; or esi, 0x00000000
mov byte [ ext_flag], 0
jmp .loop_1
@@:
cmp ah, 224
je .ext_key ; åñëè ðàñøèðåííàÿ êëàâèøà
mov cl, ah
and cl, 0x7F
cmp cl, 71 ; åñëè êëàâèøè èç NumPad
jc .l1
cmp cl, 84
jnc .l1
cmp byte [ ext_flag], 1 ; åñëè êëàâèøà íàæàòà ïîñëå EXT
je .l1
; åñëè êëàâèøà áåç ext -
cmp byte [num_lock_flag], 0 ; åñëè óñòàíîâëåí ðåæèì êóðñîðà
jne .lnorm
; äîïîëíèòåëüíîå èçâðàùåíèå äëÿ ââîäà öèôð íà NumPade
sub cl, 71
and eax, 0x00008000
mov al, cl
jz .l1_2
xor ah, ah
jz ._1_2
.l1:
mov byte [ext_flag], 0
.lnorm:
mov al, ah ; scancode â al
and eax, 0x000000FF ;îòðåçàíèå ñòàðøåé ÷àñòè îò al
or al, al
js ._1
; Åñëè âûäàí ñêàíêîä íàæàòèÿ êëàâèøè
.l1_1: add al, 13
.l1_2:
shl eax, 1 ; *2
mov ax, word [ edi+eax] ; al - 1 êëàâ , ah - 2 êëàâ
mov ecx, eax
call .L_proc_set ; 1 - êëàâèøà
shr ecx, 8
mov eax, ecx
call .L_proc_set ; 2 - êëàâèøà
jmp .loop_1 ; ïðîäîëæèòü âûáîð èç áóôåðà
._1: ;Åñëè âûäàí ñêàíêîä îòïóñêàíèÿ êëàâèøè
and al, 0x7f
add al, 13
._1_2:
shl eax, 1 ; *2
mov ax, word [ edi+eax] ; al - 1 êëàâ , ah - 2 êëàâ
mov ecx, eax
call .L_proc_res ; 1 - êëàâèøà
shr ecx, 8
mov eax, ecx
call .L_proc_res ; 2 - êëàâèøà
jmp .loop_1
.L_proc_set:
or cl, cl
jz .ret
or eax, ebx
and cl, bl ; ìàñêà ïîðòà *32
or cl, cl
js @f
; ïîðò ðàñïîëîæåí â edx
ror cl, 2 ; öèêëè÷åñêîå ñìåùåíèå
rol eax, cl
and edx, eax ; ñîõðàíåíèå êëàâèøè
ret
@@: ; ïîðò ðàñïîëîæåí â esi
and cl, 0x60 ; íîðìèðîâêà ìàñêè
ror cl, 2
rol eax, cl
and esi, eax
ret
.L_proc_res:
or cl, cl
jz .ret
or eax, ebx
xor eax, -1
and cl, bl ; ìàñêà ïîðòà *32
or cl, cl
js @f
; ïîðò ðàñïîëîæåí â edx
ror cl, 2 ; öèêëè÷åñêîå ñìåùåíèå
rol eax, cl
or edx, eax ; óäàëåíèå êëàâèøè
ret
@@: ; ïîðò ðàñïîëîæåí â esi
and cl, 0x60 ; íîðìèðîâêà ìàñêè
ror cl, 2
rol eax, cl
or esi, eax
ret
;--------------------------------------------------------
; Êëàâèàòóðà äëÿ Ñïåêòðóìà
;-----------------------------------------------------
; SHIFT - CAPS SHIFT (CS)
; CTRL - SIMBOL SHIFT (SS)
; ALT - EXTEND MODE (CS/SS) ; Îáû÷íûì ñïîñîáîì CS/SS íå íàáèðàåòñÿ
;
; BACKSPACE - DELETE (CS/0)
; ESC - BREAK (CS/Space)
; TAB - EDIT (CS/1)
; '~' - GRAPH (CS/9)
; PAGE UP - TRUE VIDEO (CS/3)
; PAGE DOWN - INV. VIDEO (CS/4)
; UP - UP (CS/7)
; DOWN - DOWN (CS/6)
; LEFT - LEFT (CS/5)
; RIGHT - RIGHT (CS/8)
; CAPS LOCK - /CAPS LOCK/ - íå ðàáîòàåò íàáèðàòü òîëüêî êàê (CS/2)
not_used_code equ 0x1F1F ; êîä äëÿ íåèñïîëüçóåìîãî ñêàíêîäà
; êîä ñêàíêîäà - 0x[áàéò ïðåôèêñà][áàéò êëàâèøè]
; [áàéò êëàâèøè / ïðåôèêñà] - áèòû=PPPKKKKK
; ãäå PPP - êîä ïîðòà
; KKKKK - êîä êëàâèøè
; òàáëèöà ñîîòâåòñòâèÿ ñêàíêîäîâ êîäàì îáðàáîòêè êëàâèø - 256 - áàéò
scancodes_tbl dw 0x0097 ; 71 - Num7
dw 0x009B ; 72 - Num8
dw 0x009D ; 73 - Num9
dw 0xFDD7 ; 74 - Num-
dw 0x0077 ; 75 - Num4
dw 0x006F ; 76 - Num5
dw 0x008F ; 77 - Num6
dw 0xFDDB ; 78 - Num+
dw 0x007E ; 79 - Num1
dw 0x007D ; 80 - Num2
dw 0x007B ; 81 - Num3
dw 0x009E ; 82 - Num0
dw 0xFDFB ; 83 - Num.
dw not_used_code ; 0 ; -------------------------------------------
dw 0x1EFE ; 1 - ESC - Break (CS/Space)
dw 0x007E ; 2 - 1
dw 0x007D ; 3 - 2
dw 0x007B ; 4 - 3
dw 0x0077 ; 5 - 4
dw 0x006F ; 6 - 5
dw 0x008F ; 7 - 6
dw 0x0097 ; 8 - 7
dw 0x009B ; 9 - 8
dw 0x009D ; 10 - 9
dw 0x009E ; 11 - 0
dw 0xFDD7 ; 12 - -
dw 0xFDDD ; 13 - =
dw 0x1E9E ; 14 - BackSpace - Delete(backspace) (CS/0)
dw 0x1E7E ; 15 - TAB - EDIT (CS/1)
dw 0x005E ; 16 - q
dw 0x005D ; 17 - w
dw 0x005B ; 18 - e
dw 0x0057 ; 19 - r
dw 0x004F ; 20 - t
dw 0x00AF ; 21 - y
dw 0x00B7 ; 22 - u
dw 0x00BB ; 23 - i
dw 0x00BD ; 24 - o
dw 0x00BE ; 25 - p
dw 0xFDAF ; 26 - [ - SS/Y
dw 0xFDB7 ; 27 - ] - SS/U
dw 0x00DE ; 28 - Enter
dw 0x00FD ; 29 - L_Control - Simbol Shift (SS)
dw 0x003E ; 30 - a
dw 0x003D ; 31 - s
dw 0x003B ; 32 - d
dw 0x0037 ; 33 - f
dw 0x002F ; 34 - g
dw 0x00CF ; 35 - h
dw 0x00D7 ; 36 - j
dw 0x00DB ; 37 - k
dw 0x00DD ; 38 - l
dw 0xFDBD ; 39 - ; - ; (SS/O)
dw 0xFD97 ; 40 - ' - ' (SS/7)
dw 0x1E9D ; 41 - ~ - GRAPH (CS/9)
dw 0x001E ; 42 - L_Shift (ýì caps )
dw 0xFD3B ; 43 - \ - SS/D
dw 0x001D ; 44 - z
dw 0x001B ; 45 - x
dw 0x0017 ; 46 - c
dw 0x000F ; 47 - v
dw 0x00EF ; 48 - b
dw 0x00F7 ; 49 - n
dw 0x00FB ; 50 - m
dw 0xFDF7 ; 51 - ,
dw 0xFDFB ; 52 - .
dw 0xFD0F ; 53 - /
dw 0x001E ; 54 - R_Shift - CAPS (CS)
dw 0xFDEF ; 55 - Num * - * (SS/B)
dw 0xFD1E ; 56 - ALT - Extend Mode (CS/SS)
dw 0x00FE ; 57 - Space
dw 0x1E7D ; 58 - Caps Lock - Caps Lock (CS/2)
dw not_used_code ; 59 - F1
dw not_used_code ; 60 - F2
dw not_used_code ; 61 - F3
dw not_used_code ; 62 - F4
dw not_used_code ; 63 - F5
dw not_used_code ; 64 - F6
dw not_used_code ; 65 - F7
dw not_used_code ; 66 - F8
dw not_used_code ; 67 - F9
dw not_used_code ; 68 - F10
dw not_used_code ; 69 - NumLock (îòïóñê M 250)
; BREAK ñîâìåñòíî (225,29,69) (225 - EXT2) (29 -L_Control)
dw not_used_code ; 70 - Scroll Lock ( îòïóñê Ì 250)
dw not_used_code ; 71 - Home (ïîñëå EXT) (åì
dw 0x1E97 ; 72 - Up (ïîñëå EXT) - UP (CS/7)
dw 0x1E7B ; 73 - Page Up (ïîñëå EXT - 224) - True video (CS/3)
dw 0xFDD7 ; 74 - Num- - - (SS/J)
dw 0x1E6F ; 75 - Left (ïîñëå EXT) - <-- (CS/5)
dw not_used_code ; 76 - Num5
dw 0x1E9B ; 77 - Right (ïîñëå EXT) - --> (CS/8)
dw 0xFDDB ; 78 - Num+
dw not_used_code ; 79 - END (ïîñëå EXT)
dw 0x1E8F ; 80 - Down (ïîñëå EXT) - DOWN (CS/6)
dw 0x1E77 ; 81 - Page Down (ïîñëå EXT) - Inv. Video (CS/4)
dw not_used_code ; 82 - Insert (ïîñëå EXT)
dw not_used_code ; 83 - Delete (ïîñëå EXT)
dw not_used_code ; 84
dw not_used_code ; 85
dw not_used_code ; 86
dw not_used_code ; 87 - F11
dw not_used_code ; 88 - F12
dw not_used_code ; 89
dw not_used_code ; 90
dw not_used_code ; 91
dw not_used_code ; 92
dw not_used_code ; 93 - Ìåíþ 3 (ïîñëå ext)
dw not_used_code ; 94
dw not_used_code ; 95
dw not_used_code ; 96 - (224) - ext - äîï. ôóíêöèÿ ñêàíêîäîâ
dw not_used_code ; 97 - (225) - ext2
dw not_used_code ; 98
dw not_used_code ; 99
dw not_used_code ; 100
dw not_used_code ; 101
dw not_used_code ; 102
dw not_used_code ; 103
dw not_used_code ; 104
dw not_used_code ; 105
dw not_used_code ; 106
dw not_used_code ; 107
dw not_used_code ; 108
dw not_used_code ; 109
dw not_used_code ; 110
dw not_used_code ; 111
dw not_used_code ; 112
dw not_used_code ; 113
dw not_used_code ; 114
dw not_used_code ; 115
dw not_used_code ; 116
dw not_used_code ; 117
dw not_used_code ; 118
dw not_used_code ; 119
dw not_used_code ; 120
dw not_used_code ; 121
dw not_used_code ; 122 - (250) M Îòïóñê (Capslock, Numlock è ò.ï.)
dw not_used_code ; 123
dw not_used_code ; 124
dw not_used_code ; 125
dw not_used_code ; 126
dw not_used_code ; 127
dw 0
; Ôëàãè êëàâèàòóðû
ext_flag db 0 ; ôëàã ðàñøèðåííîãî ñêàíêîäà
num_lock_flag db 0 ; ôëàã num êëàâû
;Áóôåð ZX-Spectrum êëàâèàòóðû.
zx_keys dd 0xFFFFFFFF, 0xFFFFFFFF
;ïîçèöèÿ áàéòà/ñòàðøèé áàéò ïîðòà:
; +0 - FE
; +1 - FD
; +2 - FB
; +3 - F7
; +4 - EF
; +5 - DF
; +6 - BF
; +7 - 7F