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/programs/develop/examples/rtdata/trunk/rtdata.asm
0,0 → 1,235
;
; COMMUNICATING WITH MODEM: PORTS & IRQ
;
; Compile with FASM for Menuet
;
 
include "lang.inc"
include "macros.inc"
 
use32
org 0x0
 
db 'MENUET01' ; 8 byte id
dd 0x01 ; header version
dd START ; start of code
dd I_END ; size of image
dd 0x1000 ; memory for app
dd 0x1000 ; esp
dd 0x0 , 0x0 ; I_Param , I_Icon
 
 
START: ; start of execution
 
 
mov eax,45 ; reserve irq 4
mov ebx,0
mov ecx,4
int 0x40
 
mov eax,46 ; reserve ports 0x3f8-0x3ff
mov ebx,0
mov ecx,0x3f8
mov edx,0x3ff
int 0x40
 
mov eax,44 ; read these ports at interrupt/irq 4
mov ebx,irqtable
mov ecx,4
int 0x40
 
mov eax,40 ; enable event for interrupt/irq 4
mov ebx,10000b shl 16 + 111b
int 0x40
 
call program_com1
 
call draw_window
 
still:
 
mov eax,10 ; wait here for event
int 0x40
 
cmp eax,1 ; redraw request ?
je red
cmp eax,2 ; key in buffer ?
je key
cmp eax,3 ; button in buffer ?
je button
cmp eax,16+4 ; data read by interrupt ?
je irq4
 
jmp still
 
red: ; redraw
call draw_window
jmp still
 
key: ; key
mov eax,2 ; just read it and ignore
int 0x40
 
mov al,ah
mov dx,0x3f8
out dx,al
 
jmp still
 
button: ; button
or eax,-1 ; close this program
int 0x40
 
 
irq4:
 
mov eax,42
mov ebx,4
int 0x40
 
; eax = number of bytes left
; ecx = 0 success, =1 fail
; bl = byte
 
inc [pos]
and [pos],31
mov eax,[pos]
 
mov [string+eax], bl
call draw_string
 
jmp still
 
 
baudrate_9600 equ 12
baudrate_57600 equ 2
 
program_com1:
 
mov dx,0x3f8+3
mov al,0x80
out dx,al
 
mov dx,0x3f8+1
mov al,0x00
out dx,al
 
mov dx,0x3f8+0
mov al,baudrate_9600
out dx,al
 
mov dx,0x3f8+3
mov al,0x3
out dx,al
 
mov dx,0x3f8+4
mov al,0xb
out dx,al
 
mov dx,0x3f8+1
mov al,0x1
out dx,al
 
ret
 
 
 
; *********************************************
; ******* WINDOW DEFINITIONS AND DRAW ********
; *********************************************
 
 
draw_window:
 
mov eax, 48
mov ebx, 3
mov ecx, sc
mov edx, sizeof.system_colors
int 0x40
 
mov eax, 12 ; function 12:tell os about windowdraw
mov ebx, 1 ; 1, start of draw
int 0x40
 
; DRAW WINDOW
mov eax, 0 ; function 0 : define and draw window
mov ebx, 100*65536+250 ; [x start] *65536 + [x size]
mov ecx, 100*65536+85 ; [y start] *65536 + [y size]
mov edx, [sc.work]
or edx, 0x03000000 ; color of work area RRGGBB,8->color gl
int 0x40
 
; WINDOW LABEL
mov eax, 4 ; function 4 : write text to window
mov ebx, 8*65536+8 ; [x start] *65536 + [y start]
mov ecx, [sc.grab_text]
or ecx, 0x10000000 ; font 1 & color ( 0xF0RRGGBB )
mov edx, header ; pointer to text beginning
mov esi, header.len ; text length
int 0x40
 
mov eax, 4 ; draw text
mov ebx, 20*65536+33
mov ecx, [sc.work_text]
mov edx, text+4
.nextstr:
mov esi, [edx-4]
test esi, 0xFF000000
jnz .finstr
int 0x40
add edx, esi
add edx, 4
add ebx, 10
jmp .nextstr
.finstr:
 
call draw_string
 
mov eax,12 ; function 12:tell os about windowdraw
mov ebx,2 ; 2, end of draw
int 0x40
 
ret
 
 
draw_string:
mov eax, 4
mov ebx, 20*65536+65
mov ecx, [sc.work_text]
mov edx, string
mov esi, 32
int 0x40
ret
 
 
; DATA AREA
 
 
if lang eq ru
text mstr "‚‚Ž„ˆŒ›… ‘ˆŒ‚Ž‹› ……„€ž’‘Ÿ ŒŽ„…Œ“.",\
"„€›… Ž’ ŒŽ„…Œ€ ‘—ˆ’›‚€ž’‘Ÿ Ž",\
"…›‚€ˆž IRQ4 ˆ Ž’Ž€†€ž’‘Ÿ ˆ†…."
header:
db 'ŒŽ„…Œ € COM1'
.len = $ - header
else
text mstr "TYPED CHARACTERS ARE SENT TO MODEM.",\
"DATA FROM MODEM IS READ BY IRQ4",\
"INTERRUPT AND DISPLAYED BELOW."
header:
db 'MODEM AT COM1'
.len = $ - header
end if
 
pos dd 0x0
 
irqtable:
; port ; 1=byte, 2=word
dd 0x3f8 +0x01000000 ; read byte from port 0x3f8 at interrupt/irq 4
dd 0x0 ; no more ports ( max 15 ) to read
 
 
I_END:
 
string rb 32
sc system_colors