413 lines
7.6 KiB
NASM
413 lines
7.6 KiB
NASM
;
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; Example for Inter Process Communication
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;
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; Compile with FASM
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;
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include 'lang.inc'
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include '..\..\..\..\macros.inc'
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use32
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org 0x0
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db 'MENUET01' ; 8 byte id
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dd 0x01 ; header version
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dd START ; start of code
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dd I_END ; size of image
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dd 0x60000 ; memory for app
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dd 0x60000 ; esp
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dd 0x0 , 0x0 ; I_Param , I_Icon
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START: ; start of execution
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mov eax,60 ; IPC
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mov ebx,1 ; define receive area
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mov ecx,received_messages ; pointer to start
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mov edx,1000 ; size of area
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mcall
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mov eax,40 ; WANTED EVENTS
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mov ebx,01000111b ; IPC 7 + defaults
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mcall
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mov [received_messages+8],dword 0*256+0
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mov [received_messages+12],dword 0
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red:
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call draw_window ; at first, draw the window
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still:
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mov eax,23 ; wait here for event
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mov ebx,50
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mcall
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cmp eax,1 ; redraw request ?
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je red
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cmp eax,2 ; key in buffer ?
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je key
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cmp eax,3 ; button in buffer ?
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je button
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cmp eax,7 ; IPC ?
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jne no_ipc
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call display_ipc_messages
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jmp still
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no_ipc:
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jmp still
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key: ; key
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mov eax,2 ; just read it and ignore
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mcall
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jmp still
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button: ; button
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mov eax,17 ; get id
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mcall
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cmp ah,1 ; button id=1 ?
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jne noclose
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mov eax,-1 ; close this program
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mcall
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noclose:
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cmp ah,2
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jne no_read
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call read_string
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movzx eax,byte [message]
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sub eax,48
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imul eax,10
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movzx ebx,byte [message+1]
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add eax,ebx
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sub eax,48
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imul eax,10
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movzx ebx,byte [message+2]
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add eax,ebx
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sub eax,48
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imul eax,10
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movzx ebx,byte [message+3]
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add eax,ebx
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sub eax,48
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mov [PID],eax
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mov eax,60 ; IPC
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mov ebx,2 ; send message
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mov ecx,[PID]
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mov edx,message+4
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mov esi,20;[message_size]
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mcall
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jmp still
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no_read:
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cmp ah,3
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jne no_messages_pop ; pop the first out
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call ipc_message_pop
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jmp still
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no_messages_pop:
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jmp still
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ipc_message_pop:
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pusha
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cmp [received_messages+4],dword 8
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je already_empty
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mov [received_messages],byte 1 ; lock the area
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push dword [received_messages+4]
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mov ecx,[received_messages+12]
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sub [received_messages+4],ecx
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sub [received_messages+4],dword 8
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mov edi,received_messages+8
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mov esi,edi
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add esi,ecx
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add esi,8
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pop ecx
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cld
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rep movsb
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call display_ipc_messages
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mov [received_messages],byte 0 ; free the area
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already_empty:
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popa
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ret
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display_ipc_messages:
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pusha
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mov eax,13
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mov ebx,25*65536+245
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mov ecx,105*65536+90
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mov edx,0xdddddd
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mcall
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cmp [received_messages+4],dword 8 ; empty list
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je ipma1
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mov ebx,25*65536+105 ; draw info text with function 4
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mov ecx,0x224466
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mov edx,received_messages+8
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mov esi,40
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mov [counter],0
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newline2:
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pusha
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mov ecx,[edx]
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and ecx,0xfff
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mov edx,ebx
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mov eax,47
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mov ebx,4*65536
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mov esi,0xff0000
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mcall
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popa
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pusha
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mov esi,20
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add edx,8
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add ebx,30*65536
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mov eax,4
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mcall
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popa
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add ebx,10
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mov edi,[edx+4]
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add edi,8
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and edi,0xfff
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add edx,edi
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mov edi,[received_messages+4]
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add edi,received_messages
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cmp edx,edi
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jge ipma1
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inc [counter]
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cmp [counter],8
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jbe newline2
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ipma1:
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popa
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ret
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counter dd 0x0
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; *********************************************
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; ******* WINDOW DEFINITIONS AND DRAW ********
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; *********************************************
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draw_window:
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mov eax,12 ; function 12:tell os about windowdraw
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mov ebx,1 ; 1, start of draw
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mcall
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; DRAW WINDOW
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mov eax,0 ; function 0 : define and draw window
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mov ebx,100*65536+290 ; [x start] *65536 + [x size]
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mov ecx,100*65536+220 ; [y start] *65536 + [y size]
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mov edx,0x14ffffff ; color of work area RRGGBB,8->color gl
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mov edi,title ; WINDOW LABEL
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mcall
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mov eax,9
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mov ebx,process_info
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mov ecx,-1
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mcall
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mov eax,47
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mov ebx,4*65536
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mov ecx,[process_info+30]
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mov edx,180*65536+35
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mov esi,0x000000
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mcall
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mov eax,8 ; MESSAGE
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mov ebx,25*65536+87
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mov ecx,50*65536+16
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mov edx,2
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mov esi,0x5588dd
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mcall
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;mov eax,8 ; POP
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mov ebx,216*65536+53
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mov ecx,80*65536+16
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mov edx,3
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mcall
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mov eax,4
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mov ebx,25*65536+35 ; draw info text with function 4
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mov ecx,0x224466
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mov edx,text
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mov esi,40
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newline:
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mcall
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add ebx,10
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add edx,40
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cmp [edx],byte 'x'
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jne newline
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call display_ipc_messages
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mov eax,12 ; function 12:tell os about windowdraw
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mov ebx,2 ; 2, end of draw
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mcall
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ret
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read_string:
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pusha
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mov [addr],dword message
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mov [ya],55
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mov [xa],120
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mov ecx,20
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mov edi,[addr]
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mov al,' '
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cld
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rep stosb
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call print_text
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mov edi,[addr]
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f11:
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mov eax,10
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mcall
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cmp eax,2
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jz fbu
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exit_readkey:
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popa
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ret
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fbu:
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mov eax,2
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mcall ; get key
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shr eax,8
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cmp eax,13
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je exit_readkey
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cmp eax,8
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jnz nobs
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cmp edi,[addr]
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jz f11
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dec edi
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mov [edi],byte ' '
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call print_text
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jmp f11
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nobs:
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cmp eax,31
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jbe f11
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cmp eax,95
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jb keyok
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sub eax,32
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keyok:
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mov [edi],al
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call print_text
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inc edi
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mov esi,[addr]
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add esi,20
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cmp esi,edi
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jnz f11
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popa
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ret
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print_text:
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mov eax,13
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mov ebx,[xa]
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shl ebx,16
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add ebx,25*6
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mov ecx,[ya]
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shl ecx,16
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mov cx,8
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mov edx,0xffffff
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mcall
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mov eax,4
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mov ebx,[xa]
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shl ebx,16
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add ebx,[ya]
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mov ecx,0x000000
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mov edx,[addr]
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mov esi,25
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mcall
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ret
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; DATA AREA
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ya dd 0x0
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xa dd 0x0
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addr dd 0x0
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text:
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db 'PROCESS ID FOR THIS APP : '
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db ' '
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db ' PID:MESSAGE 0130 EXAMPLE MESSAGE '
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db ' '
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db ' '
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db 'RECEIVED: POP '
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db 'x' ; <- END MARKER, DONT DELETE
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title db 'IPC - START AT LEAST 2',0
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I_END:
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PID: dd 0x0
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message_size: dd 20
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received_messages:
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db 0 ; lock byte
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db 0,0,0 ; reserved
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dd 8 ; pointer to free msg position from received_messages
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; Sender PID
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; Msg length
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; Msg data
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rb 0x1000
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message: times 70 db ?
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process_info: times 256 dd ?
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