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Length: 20992 (0x5200)
Types: TextFile
Names: »APMCGIOS.A86«
└─⟦369075929⟧ Bits:30004202 GSX driver sourcer disk 1
└─⟦this⟧ »APMCGIOS.A86«
PAGESIZE 56
;PC MOUSE support Erling Skjoldborg 850522
;************************************************************************
;* *
;* DEVICE SPECIFIC ROUTINES *
;* *
;* These routines and equates are device dependant. *
;* *
;* *
;************************************************************************
dseg
copyright db 'GSX-86 V1.3 Aug. 84'
db 'CR16 monochrome screen driver'
db 'by LW - Christian Rovsing A/S'
cseg
public clearmem
public check_escape
public escfn0,escfn1,escfn2,escfn3
public escfn4,escfn5,escfn6,escfn7
public escfn8,escfn9,escf10,escf11
public escf12,escf13,escf14,escf15
public escf16,escf17,escf18,escf19
public concat
public valuator,choice,get_char
public plyfill_rot
public abline,draw_char
public next_address
public enable_cross,move_cross,clip_cross,get_loc_key
public device_table , size_table
public gcurx,gcury
public y1,y2,x1,x2
public lstlin
public arstl2
extrn entry:near ;the place to jump to if this module
;is linked in first
;
;integer array indexing equates
W_1 equ word ptr 0
W_2 equ word ptr 2
W_3 equ word ptr 4
W_4 equ word ptr 6
W_5 equ word ptr 8
W_6 equ word ptr 10
W_7 equ word ptr 12
W_8 equ word ptr 14
W_9 equ word ptr 16
W_10 equ word ptr 18
false equ 0
true equ not false
val_inc_big equ 10 ;maximum valuator increment
val_inc_small equ 1 ;minimum valuator increment
syscall equ 224
mmcs_reg equ 0ffa6h ;midrange chip select
EJECT
;****************************************************************
; screen coordinate equates *
; these must be changed to the values for specific machines *
;****************************************************************
;
xresmx equ 639 ;X - Maximum resolution.
yresmx equ 399 ;Y - Maximum resolution.
xsize equ 169 ;size of pixel in microns
ysize equ 200 ;
plane_size equ 08000h ;size of graphics memory
msb_first equ true ;set if msb is first out
byte_swap equ false ;are bytes swapped
multiseg equ true
num_segs equ 4 ;number of graphics segments
bytes_line equ 80 ;used to compute addresses
chars_line equ 80 ;number of characters per line
lines_page equ 25 ;lines per alpha screen
last_dri_escape equ 19 ;last dri defined escape
INCLUDE MOUSE.DEF
;****************************************************************
; device dependant equates *
; these may or may not be necessary depending on hardware *
;****************************************************************
;
if multiseg
next_line equ plane_size / num_segs ;offset to get to next segment
else
next_line equ bytes_line
endif
neg_next_line equ 0 - next_line
move_to_first equ 0 - plane_size + bytes_line
move_to_last equ plane_size - bytes_line ;from before first to last
curwtx equ 16 ;1/2 width of cross hair
curwty equ 8 ;1/2 height of cross hair
cur_mot_max_x equ 16 ;how far cursor moves fast in x
cur_mot_max_y equ 8 ;how far cursor moves fast in y
cur_mot_min_x equ 1 ;how far cursor moves slow in x
cur_mot_min_y equ 1 ;how far cursor moves slow in y
jmp entry ;if we come in from here, go to real entry
;****************************************
;* clearmem *
;* clears graphics memory *
;* uses ax,cx,di *
;* stores zeros in graphics plane *
;****************************************
clearmem:
mov ax,graph_plane ; ld in graphics memory address
mov es,ax
mov cx,plane_size/2 ;number of bytes to zero
xor ax,ax
mov di,ax
rep stosw ; store plane_size zeros in graphmem
ret
EJECT
;************************************************************************
;* escape functions *
;* handle character I/O , alpha and graphics cursor *
;* *
;* ENTRY *
;* contrl points to segment and offset of contrl *
;* intin points to segment and offset of intin *
;* ptsin points to segment and offset of ptsin *
;* intout points to segment and offset of intout *
;* ptsout points to segment and offset of ptsout *
;* *
;* *
;************************************************************************
;****************************************
;check_escape
; checks escape function called
; against last_escape
;****************************************
check_escape:
cmp bx,last_dri_escape
jbe its_ok
xor bx,bx ;do a nop if its not valid
its_ok:
ret
;****************************************
;escape func 0
; Nop
;****************************************
escfn0:
ret
EJECT
;****************************************
;escape func 1
; Inquire Addressable Character Cells
;****************************************
escfn1:
les di,intout
mov es:W_1ÆdiÅ, lines_page ; number of addressable rows.
mov es:W_2ÆdiÅ, chars_line ; number of addressable columns.
ret
;****************************************
;escape func 2
; Enter Graphics Mode
;****************************************
escfn2:
mov dx,offset init_string
mov cl,9 ;disable statusline and blinking cursor
int syscall
mov dx,mmcs_reg
in ax,dx
and ax,1111111000000000b
add ah,10h
mov graph_plane,ax
call escfn8 ; home alpha cursor.
call clearmem ; clear display
call xios_setup ;setup for direct xios call
mov cx,10h ;general graphics mode
mov ax,30 ;IO-SCREEN function code
call xios_call ;go set graphics mode
mov si,offset graphic_cit ;pointer to crt init table
call crt_init ;enter graphic mode
if mouse
mov bl,1
call mouse_function ;initialize the mouse
endif
ret
EJECT
;****************************************
;escape func 3
; Exit Graphics Mode
;****************************************
escfn3:
call xios_setup ;setup for direct xios call
mov cx,1 ;general alpha mode
mov ax,30 ;IO-SCREEN function code
call xios_call ;go set alpha mode
call clearmem
mov si,offset alpha_cit ;pointer to crt init table
call crt_init ;enter alpha mode
mov dx,offset exit_string
mov cl,9 ;enable blinking cursor
int syscall
call escfn8 ;home alpha cursor
call escfn9 ;clear to end of screen
if mouse
mov bl,2
call mouse_function ;initialize the mouse
endif
ret
;****************************************
;escape func 4
; Cursor Up
;****************************************
escfn4:
cmp cursor_row,0
je esc4done
dec cursor_row
mov dx,offset cursor_up
mov cl,9
int syscall
esc4done:
ret
EJECT
;****************************************
;escape func 5
; Cursor Down
;****************************************
escfn5:
cmp cursor_row,lines_page-1
je esc5done
inc cursor_row
mov dx,offset cursor_down
mov cl,9
int syscall
esc5done:
ret
;****************************************
;escape func 6
; Cursor Right
;****************************************
escfn6:
cmp cursor_col,chars_line-1
je esc6done
inc cursor_col
mov dx,offset cursor_right
mov cl,9
int syscall
esc6done:
ret
EJECT
;****************************************
;escape func 7
; Cursor Left
;****************************************
escfn7:
cmp cursor_col,0
je esc7done
dec cursor_col
mov dx,offset cursor_left
mov cl,9
int syscall
esc7done:
ret
;****************************************
;escape func 8
; Home Cursor
;****************************************
escfn8:
mov cursor_pos,0
mov dx,offset cursor_home
mov cl,9
int syscall
ret
;****************************************
;escape func 9
; Erase to end of screen
;****************************************
escfn9:
mov dx,offset erase_eos
mov cl,9
int syscall
ret
EJECT
;****************************************
;escape func 10
; Erase to end of line
;****************************************
escf10:
mov dx,offset erase_eol
mov cl,9
int syscall
ret
;****************************************
;escape func 11
; Move Cursor to x,y
;****************************************
escf11:
les di,intin
mov ax, es:ÆdiÅ ; get the row number (1-25)
mov cursor_row,al
add cursor_row,1fh
mov bl,10
div bl
add ax,3030h
mov curs_lin,ax
les di,intin
mov ax, es: W_2ÆdiÅ ; get the column number (1-80)
mov cursor_col,al
add cursor_col,1fh
mov bl,10
div bl
add ax,3030h
mov curs_col,ax
mov dx,offset cursor_xy
mov cl,9
int syscall
ret
EJECT
;****************************************
;escape func 12
; Output text
;****************************************
escf12:
les di,contrl
mov cx, es: W_4ÆdiÅ ; get string length.
jcxz esc12_done ; done if zero
les di,intin
esc120:
mov dl,es:ÆdiÅ ; load character to be output.
cmp dl,20h ; test if control or displayable
jb esc121
cmp cursor_col,chars_line-1
je esc124
inc cursor_col
jmps esc124
esc121:
cmp dl,07
je esc124
cmp dl,08
jne esc122
cmp cursor_col,0
je esc125
dec cursor_col
jmps esc124
esc122:
cmp dl,0ah
jne esc123
cmp cursor_row,lines_page-1
je esc125
inc cursor_row
jmps esc124
esc123:
cmp dl,0dh
jne esc125
cmp cursor_col,0
je esc125
inc cursor_col
esc124:
push di
push cx
mov cl,2
int syscall ; output via xios
pop cx
pop di
esc125:
inc di
inc di
loop esc120
esc12_done:
ret
EJECT
;****************************************
;escape func 13
; Reverse video on
;****************************************
escf13:
mov dx,offset reverse_on
mov cl,9
int syscall
ret
;****************************************
;escape func 14
; Reverse video off
;****************************************
escf14:
mov dx,offset reverse_off
mov cl,9
int syscall
ret
;****************************************
;escape func 15
; Return Current Cursor Address
;****************************************
escf15:
les di,intout
mov dx,cursor_pos ;get cursor position
add dx,101h ;make one relative
xor ax,ax ;zero high byte
xchg al,dh
mov es:ÆdiÅ,ax ;return row address
mov es:W_2ÆdiÅ,dx ;return column address
ret
EJECT
;****************************************
;escape func 16
; Return Tablet Status
;****************************************
escf16:
les di,intout
if mouse
mov es:W_1ÆdiÅ, 1 ;return a 1
else
mov es:W_1ÆdiÅ, 0 ;return a 0
endif
ret
;****************************************
;escape func 17 NOT SUPPORTED
; Hard Copy
;****************************************
escf17:
ret
;****************************************
;escape func 18
; Place graphic cross-hair cursor at x,y
;****************************************
escf18:
les di,ptsin
mov ax,es:ÆdiÅ
mov gcurx,ax
mov ax,es:W_2ÆdiÅ
mov gcury,ax
call enable_cross
ret
;****************************************
;escape func 19
; Remove cursor /Marker
;****************************************
escf19:
jmp enable_cross ; locator is called before esc19.
EJECT
;
; setup for xios call
xios_setup:
push es
mov cl,9ah
int syscall ; get sysdat segment
mov entry_seg,es
mov cl,9ch
int syscall
mov ax,es:10hÆbxÅ ; get uda segment
mov uda_seg,ax
pop es
mov cl,99h
int syscall ; get virtual console id
mov vircons,al
ret
;
; make xios call
xios_call:
push es
push ds
mov dl,vircons
mov es,uda_seg
mov ds,entry_seg
callf cs:xios_entry
pop ds
pop es
ret
xios_off dw 0c03h
entry_seg rw 1
xios_entry equ dword ptr xios_off
uda_seg rw 1
vircons db 0
;****************************************************************
;crt_init *
; initialize the crt controller, mode and color register *
; with data from table. *
; entry: si = pointer to table *
; exit: none *
; *
;****************************************************************
crt_init:
mov dx,0680h ;setup controller address and
mov cx,length graphic_cit ;...nbr of registers to setup
xor ah,ah ;start from reg. 0
ci_lp:
mov al,ah ;get next register to setup
out dx,al ;tell controller
inc ah
inc dx
inc dx ;setup dataport address
lodsb ;get table data and bump pointer
out dx,al
dec dx
dec dx ;back to control port
loop ci_lp ;till all table data send to controller
mov dx,0688h ;mode control register port address
lodsb ;get mode just after table
out dx,al
mov dx,0698h ;color select register port address
lodsb ;get color value
out dx,al
ret
EJECT
;****************************************************************
;CONCAT *
; ENTRY Reg. BX - X-coordinate (dev. coord.) *
; Reg. AX - Y-coordinate (dev. coord.) *
; *
; EXIT Reg. DI - Physical address *
; Reg. BL - Byte index *
; *
; Reg. Used. AX, BX, CX, DX, DI *
; *
;****************************************************************
concat:
and bx, 03ffh ;mask off 10 lsb for x-coord.
mov cx, yresmx ;normalize y-coordinate
sub cx, ax
mov ax, cx
shr ax,1
shr ax,1
mov dh,cl
mov dl, bl ;save low order byte of x-coord
and dl, 07h ;mask off data bit index.
mov cl, 3 ;set count to 3
shr bx, cl ;shift out 3 lsb of x-coord.
mov cl,bytes_line ;brute force calculation
mul cl ;use shift and add if possible
add ax, bx ;concatenate y and x coordinates in AX
xor cl, cl
xchg dh,cl
and cl,3
jcxz concat1
concat0:
add ax,next_line ;if odd address, then start at next_line
loop concat0
concat1:
mov di, ax ;di = memory address
mov bx, dx ;bx = bit index into data byte
ret
EJECT
;************************************************************************
;*get_loc_key *
;* Get Locator key *
;* Entry none *
;* Exit *
;* al=0 nothing happened *
;* *
;* al=1 button press *
;* ah = character information *
;* *
;* al=2 coordinate information *
;* bx = delta x *
;* cx = delta y *
;* *
;* *
;************************************************************************
get_loc_key:
if mouse
mov bl,3
call mouse_function
and al,al
jz get_loc_mouse
ret
get_loc_mouse:
endif
call get_char ;ask for character
test al,al ;if no characters received
jz get_loc_key_done ;nothing to do
cmp bl,01h ;test if delta min/max toggle
jne notins ;skip if not
not deltamax ;flip the toggle
xor ax,ax ;no character returned
jmps get_loc_key_done
notins:
mov al,bl
cmp al,1bh ;detect start of escape sequence
jne get_loc_1 ;return character if not escape
call get_char ;get second character in sequence
test al,al
jnz loc_1 ;if not available
mov al,1bh ;return escape as character
jmps get_loc_1
loc_1:
push bx ;save for a while
call get_char ;get last character of sequence
test al,al ;if not available
pop ax
jz get_loc_1 ;return second character
mov ah,bl ;setup ax for table scan
mov si,offset loc_tbl
mov cx,10 ;search table for locator key
loc_key_search:
cmp ax,ÆsiÅ
jz found_loc_key
add si,6
loop loc_key_search
get_loc_1:
mov ah,al
mov al,1 ;not a locator key so return status
jmps get_loc_key_done
found_loc_key:
mov bx,2ÆsiÅ ;get delta x value
mov cx,4ÆsiÅ ;get delta y value
cmp deltamax,0
je deltadone
shl bx,1
shl bx,1
shl bx,1 ;8 times faster movements when maxmode
shl cx,1
shl cx,1
shl cx,1
deltadone:
mov al,2
get_loc_key_done:
ret
if mouse and sio1b
include mouse1b.a86
else
include mousepc.a86
endif
EJECT
;************************************************************************
;*valuator *
;* Get valuator increment *
;* Exit *
;* al=0 nothing happened *
;* *
;* al=1 button press *
;* ah = character information *
;* *
;* al=2 coordinate information *
;* bx = delta value *
;* *
;************************************************************************
valuator:
call get_char
test al,al
jz get_val_done
mov al,bl
cmp al,1bh
jne get_val_1
call get_char
test al,al
jnz val_1
mov al,1bh
jmps get_val_1
val_1:
push bx
call get_char
test al,al
pop ax
jz get_val_1
mov ah,bl
mov si,offset val_tbl
mov cx,4 ;search table for locator key
val_key_search:
cmp ax,ÆsiÅ
jz found_val_key
add si,4
loop val_key_search
get_val_1:
mov ah,al
mov al,1 ;not a locator key so return status
jmps get_val_done
found_val_key:
mov bx,2ÆsiÅ ;get delta x value
mov al,2
get_val_done:
ret
EJECT
;************************************************************************
;* Get choice for choice input *
;* Entry none *
;* *
;* Exit *
;* al=0 nothing happened *
;* *
;* al=1 choice value *
;* bx = choice number 1 to max choice keys *
;* *
;* al=2 button press *
;* ah = character *
;* *
;************************************************************************
choice:
call get_char
test al,al
jz choice_done
mov ah,bl ; in case of bad choice
sub bl,30h
jc choice_key ; make it zero based if <0 then reject
cmp bx,10 ; test if too large
jnc choice_key
inc bx ; make 1-10
mov ax,1 ; bx = choice number
jmps choice_done
choice_key:
mov al,2
choice_done:
ret
EJECT
;************************************************************************
;*get_char *
;* Get character for string input *
;* Entry none *
;* *
;* Exit *
;* al=0 nothing happened *
;* *
;* al=1 button press *
;* bx = character information *
;* *
;************************************************************************
get_char:
mov dl,0ffh
mov cl,6
int syscall ; see if xios has character
test al,al
jz get_char_done
mov bx,1
xchg bl,al
get_char_done:
ret
include monommre.a86
;***************************************************************************
;* *
;* Data Area *
;* contains data for escape functions *
;* and the values returned on open_workstation *
;* *
;* *
;* *
;***************************************************************************
;
extrn txtclx:word ;text color index
extrn txtcol:byte ;text writing mode
extrn wrmode:word ;writing mode
extrn plncol:byte ;polygon color index
extrn bakcol:byte ;back ground color
extrn style:word ;line style
extrn contrl:dword
extrn intin:dword
extrn ptsin:dword
extrn intout:dword
extrn ptsout:dword
;
;
graph_plane dw 0B000h ;start of graphics segment
graphic_cit db 33h,28h,2ah,74h,6bh,00h,64h,64h,30h,03h,20h,00h,0,0,0,0
graph_m_and_c db 12h,07h
alpha_cit db 68h,50h,55h,7fh,19h,0ch,19h,19h,30h,0fh,6eh,0fh,0,0,0,0
alpha_m_and_c db 24h,00h
init_string db 1bh,'0',1bh,'Æ1v$';disable statline and cursor
exit_string db 1bh,'1',1bh,'Æ0v$'; enable statusline and cursor
cursor_up db 1bh,'ÆA$'
cursor_down db 1bh,'ÆB$'
cursor_right db 1bh,'ÆC$'
cursor_left db 1bh,'ÆD$'
cursor_home db 1bh,'ÆH$'
erase_eos db 1bh,'ÆJ$'
erase_eol db 1bh,'ÆK$'
cursor_xy db 1bh,'Æ'
curs_lin dw 0
db ';'
curs_col dw 0
db 'H$'
reverse_on db 1bh,'Æ7m','$'
reverse_off db 1bh,'Æ0m','$'
cursor_pos rw 0
cursor_col db 0
cursor_row db 0
;
attribute db 07h ;text attributes
;
;loc_tbl
; table of words for locator keys
; format
; word = key code
; word = delta x
; word = delta y
loc_tbl dw 4d00h ;right arrow un shifted
dw cur_mot_max_x
dw 0
dw 435Bh ;right arrow shifted
dw cur_mot_min_x
dw 0
dw 4b00h ;left arrow unshifted
dw 0-cur_mot_max_x
dw 0
dw 445Bh ;left arrow shifted
dw 0-cur_mot_min_x
dw 0
dw 4800h ;up arrow unshifted
dw 0
dw cur_mot_max_y
dw 415BH ;up arrow shifted
dw 0
dw cur_mot_min_y
dw 5000h ;down arrow unshifted
dw 0
dw 0-cur_mot_max_y
dw 425Bh ;down arrow shifted
dw 0
dw 0-cur_mot_min_y
dw 4700h ;home un shifted
dw 0-xresmx
dw 0-yresmx
dw 485Bh ;home shifted
dw 0-xresmx
dw 0-yresmx
deltamax db 0ffh
;
;val_tbl
; decoding of valuator input
;
val_tbl dw 415Bh ;up arrow unshifted
dw val_inc_big
dw 445BH ;up arrow shifted
dw val_inc_small
dw 425Bh ;down arrow unshifted
dw 0-val_inc_big
dw 435Bh ;down arrow shifted
dw 0-val_inc_small
;
END
«eof»