374 lines
7.2 KiB
NASM
374 lines
7.2 KiB
NASM
;------------------------------------------------------------------------------
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; @SS - screensaver
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;------------------------------------------------------------------------------
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; last update: 30/03/2012
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; changed by: Marat Zakiyanov aka Mario79, aka Mario
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; changes: The program uses only 4 Kb memory is now.
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; Code refactoring. Using transparent cursor.
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; Fix bug - using lots of buttons from f.8.
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;---------------------------------------------------------------------
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; SCREENSAVER APPLICATION by lisovin@26.ru
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;
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; Compile with FASM for Menuet
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;
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;------------------------------------------------------------------------------
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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 IM_END ; size of image
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dd I_END ; memory for app
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dd stack_top ; esp
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dd I_Param ; boot parameters
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dd 0x0 ; path
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;------------------------------------------------------------------------------
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include '..\..\..\macros.inc'
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;include 'debug.inc'
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;------------------------------------------------------------------------------
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align 4
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START:
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mcall 68,11
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mcall 40, EVM_REDRAW + EVM_KEY + EVM_BUTTON + EVM_MOUSE
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; boot parameters
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cmp [I_Param], dword '@ss'
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setz [screensaver]
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cmp [I_Param],dword 'ZERO'
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jne @f
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mov [type],dword 0
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;--------------------------------------
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align 4
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@@:
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cmp [I_Param],dword 'ASSM'
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jne bgr_changed
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mov [type],dword 24
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;------------------------------------------------------------------------------
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align 4
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bgr_changed:
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mcall 14
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mov [y_max],ax
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shr eax,16
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mov [x_max],ax
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shl eax,16
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mov [top_right_corner],eax
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call create_ss
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;------------------------------------------------------------------------------
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align 4
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still:
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cmp al,2 ; key in buffer?
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jz key
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cmp al,5 ; background redraw?
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jz bgr_changed
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; mouse event
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mcall 37,2 ; 能恥丞足 狎悖爸
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and al,3
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cmp al,3 ; <20><>碲 恣<> 狎悖爸 禺閮?
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jnz still
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mcall 37,0 ; 能恥丞足 狙桌尹<E6A18C>碲
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cmp [top_right_corner],eax
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jnz still
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;------------------------------------------------------------------------------
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align 4
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key:
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mcall ; eax = 2
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jmp still
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;------------------------------------------------------------------------------
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align 4
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create_ss:
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mcall 40,100010b
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;set_new_cursor_skin - transparent cursor
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mcall 68,12,32*32*4 ; get memory for own cursor area
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push eax
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mov ecx,eax
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mcall 37,4,,2 ; load own cursor
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mov ecx,eax
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mcall 37,5 ; set own cursor
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pop ecx
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mcall 68,13 ; free own cursor area
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cmp [type],dword 0
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je drawsswin
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cmp [type],dword 24
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je asminit
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mov dword [delay],1
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mov [lx1],10 ; for "draw line"
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mov [lx2],40
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mov [ly1],50
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mov [ly2],100
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mov [addx1],1
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mov [addx2],1
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mov [addy1],1
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mov [addy2],1
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jmp drawsswin
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;--------------------------------------
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align 4
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asminit: ; for "assembler" - assembler sources demo
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; get size of file
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mov [fileinfo],dword 5
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mov [fileinfo.point],dword fileinfo_buffer
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mcall 70,fileinfo
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test eax,eax
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jnz .no_file
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; get memory for file
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mov ecx,[fileinfo_buffer+32]
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mov [fileinfo.size],ecx
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mcall 68,12
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mov [fileinfo.point],eax
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; load file
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mov [fileinfo],dword 0
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mcall 70,fileinfo
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test eax,eax
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jz @f
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mcall 68,13,[fileinfo.point]
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;--------------------------------------
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align 4
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.no_file:
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mov [type],dword 0
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jmp drawsswin
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;--------------------------------------
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align 4
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@@:
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mov dword [delay],1 ;25 - old value
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;--------------------------------------
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align 4
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asminit1:
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mov eax,[fileinfo.point]
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mov [stringstart],eax
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mov dword [stringlen],1
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;--------------------------------------
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align 4
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newpage:
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mov [stringpos],16
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;--------------------------------------
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align 4
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drawsswin:
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xor eax,eax
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movzx ebx,[x_max]
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movzx ecx,[y_max]
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inc ebx
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inc ecx
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mcall ,,,0x01000000
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xor edx,edx
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;mcall 13 ;Leency - use transparent background
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;--------------------------------------
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align 4
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tstill:
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mcall 23,[delay]
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test eax,eax
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jnz thr_end
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cmp [type],dword 0
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je tstill
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cmp [type],dword 24
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je drawssasm
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call draw_line
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jmp tstill
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;--------------------------------------
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align 4
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thr_end:
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cmp [screensaver], 0
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jz @f
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mcall 70, f70
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@@:
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cmp [type],dword 24
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jne @f
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mcall 68,13,[fileinfo.point]
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@@:
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and [params], not 1
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or eax,-1
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mcall
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;------------------------------------------------------------------------------
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align 4
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drawssasm:
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mov edi,[stringstart]
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add edi,[stringlen]
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dec edi
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mov eax,edi
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sub eax,[fileinfo.point]
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cmp eax,[fileinfo.size]
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ja asminit1
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cmp word [edi],0x0a0d
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je addstring
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cmp byte [edi],0x0a
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jne noaddstring
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dec edi
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;--------------------------------------
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align 4
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addstring:
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add [stringpos],16
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add edi,2
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mov [stringstart],edi
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mov dword [stringlen],1
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mov ax,[stringpos]
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cmp ax,[y_max]
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jb tstill
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jmp newpage
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;--------------------------------------
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align 4
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noaddstring:
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mov ebx,[stringlen]
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shl ebx,19
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mov bx,[stringpos]
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mov edx,[stringstart]
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add edx,[stringlen]
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dec edx
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mcall 4,,0x104ba010,,1
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inc dword [stringlen]
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cmp [edi],byte ' '
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je drawssasm
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jmp tstill
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;------------------------------------------------------------------------------
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align 4
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draw_line:
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movzx esi,[x_max]
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movzx edi,[y_max]
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mov eax,[addx1]
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add [lx1],eax
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mov eax,[addy1]
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add [ly1],eax
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mov eax,[addx2]
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add [lx2],eax
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mov eax,[addy2]
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add [ly2],eax
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cmp [lx1],1
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jge dl1
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mov [addx1],1
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;--------------------------------------
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align 4
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dl1:
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cmp [lx2],1
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jge dl2
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mov [addx2],1
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;--------------------------------------
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align 4
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dl2:
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cmp [lx1],esi
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jbe dl3
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mov [addx1],0xffffffff
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;--------------------------------------
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align 4
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dl3:
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cmp [lx2],esi
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jbe dl4
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mov [addx2],0xffffffff
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;--------------------------------------
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align 4
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dl4:
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cmp [ly1],1
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jge dl5
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mov [addy1],1
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;--------------------------------------
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align 4
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dl5:
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cmp [ly2],2
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jge dl6
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mov [addy2],1
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;--------------------------------------
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align 4
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dl6:
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cmp [ly1],edi
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jbe dl7
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mov [addy1],-1
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;--------------------------------------
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align 4
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dl7:
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cmp [ly2],edi
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jbe dl8
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mov [addy2],-1
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;--------------------------------------
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align 4
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dl8:
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mov eax,[lx2]
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cmp [lx1],eax
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jz dnol
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mov bx,word [lx1]
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shl ebx,16
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mov bx,word [lx2]
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mov cx,word [ly1]
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shl ecx,16
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mov cx,word [ly2]
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mov edx,[lcolor]
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and edx,0xffffff
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mcall 38
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;--------------------------------------
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align 4
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dnol:
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add [lcolor],0x010201
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ret
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;------------------------------------------------------------------------------
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align 4 ; DATA AREA
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type dd 12
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delay dd 100
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lx1 dd 10
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lx2 dd 40
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ly1 dd 50
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ly2 dd 100
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addx1 dd 1
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addx2 dd 1
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addy1 dd 1
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addy2 dd 1
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stringlen dd 1
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stringstart dd 0
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stringpos dw 16
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params db 0 ;if bit 0 set-ssaver works if bit 1 set-setup works
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fileinfo:
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dd 0
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dd 0
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dd 0
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.size: dd 0
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.point: dd 0
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db '/sys/macros.inc',0
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f70: ; run
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dd 7, 0, 0, 0, 0
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db '/sys/@SS',0
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screensaver db ?
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;-------------------------------
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IM_END: ; UNINITIALIZED DATA
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top_right_corner rd 1
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align 4
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lcolor dd ?
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x_max dw ? ; <20>妞丞<E5A69E> 磲<><E7A3B2>
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y_max dw ?
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I_Param:
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fileinfo_buffer:
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rb 40
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;-------------------------------
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rb 512
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stack_top:
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I_END:
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