forked from KolibriOS/kolibrios
65a732dc5a
Optimized FIRE program: code size 690->474, now it fits in one sector;
memory requirements 0.5Mb -> 200Kb.
git-svn-id: svn://kolibrios.org@79 a494cfbc-eb01-0410-851d-a64ba20cac60
260 lines
4.7 KiB
NASM
260 lines
4.7 KiB
NASM
;
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; FIRE for MENUET - Compile with FASM
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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 1 ; header version
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dd START ; program start
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dd I_END ; image size
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dd mem_end ; reguired amount of memory
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dd mem_end
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dd 0,0 ; no parameters, no path
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;include 'lang.inc'
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include 'macros.inc'
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START:
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red:
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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 ; tell os about redraw
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mov ebx,1
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int 0x40
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xor eax,eax ; define and draw window
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mov ebx,100*65536+321
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mov ecx,70*65536+222
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mov edx,0x00000000
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mov esi,0x00000000
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mov edi,0x00000000
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int 0x40
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mov al,4 ; 'FIRE FOR MENUET'
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mov ebx,110*65536+8
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mov ecx,dword 0x00FFFFFF
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mov edx,text
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mov esi,textlen-text
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int 0x40
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mov al,8
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mov ebx,(321-19)*65536+12 ; button start x & size
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mov ecx,5*65536+12 ; button start y & size
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mov edx,1 ; button number
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mov esi,0x009a0000
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int 0x40
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mov ebx,ecx ;5*65536+12
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inc edx
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int 0x40
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mov ebx,18*65536+12
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inc edx
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int 0x40
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mov ebx,31*65536+12
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inc edx
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int 0x40
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mov al,12 ; tell os about redraw end
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mov ebx,2
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int 0x40
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sta: ; calculate fire image
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mov esi, FireScreen+0x2300-80
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mov ecx, 80
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mov eax, [FireSeed]
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NEWLINE:
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mul [RandSeedConst]
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inc eax
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mov [esi], dl
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inc esi
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loop NEWLINE
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mov [FireSeed], eax
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mov ecx, 0x2300-80
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sub esi, ecx
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xor edx, edx
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xor eax, eax
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FIRELOOP:
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lodsb
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cmp [type], ah
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jnz notype1
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mov dl, [esi + 1]
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add eax, edx
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mov dl, [esi]
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add eax, edx
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mov dl, [esi + 80]
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jmp typedone
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notype1:
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; cmp [type],1
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; jnz notype2
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mov dl, [esi - 2]
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; add eax, edx
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; mov dl, [esi - 2]
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; add eax, edx
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lea eax, [eax + edx*2]
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mov dl, [esi + 78]
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; notype2:
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; type 2 is never used
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; cmp [type],2
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; jnz notype3
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; mov dl, [esi - 2]
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; add eax, edx
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; mov dl, [esi]
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; add eax, edx
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; mov dl, [esi + 80]
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; notype3:
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typedone:
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add eax, edx
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shr eax, 2
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jz ZERO
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dec eax
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ZERO:
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mov [esi - 81], al
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loop FIRELOOP
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mov al, 5 ; in this moment always high 24 bits of eax are zero!
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mov ebx,[delay]
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int 0x40
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inc [calc]
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cmp [calc], byte 2
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jnz nodrw
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pdraw:
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mov byte [calc],ah ;byte 0
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mov edi,ImageData
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push edi ; pointer for sysfunction 7, draw image
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add edi,[fcolor]
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mov esi,FireScreen
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xor edx,edx
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newc:
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xor eax, eax
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lodsb
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mov ecx,eax
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shr eax,1
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add cl,al
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mov ch,al
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mov [edi+0],ecx
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mov [edi+3],ecx
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mov [edi+6],ecx
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mov [edi+9],cx
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lea ebx, [edi+320*3]
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mov [ebx+0],ecx
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mov [ebx+3],ecx
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mov [ebx+6],ecx
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mov [ebx+9],ecx
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add edi,12
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inc edx
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cmp edx,80
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jnz nnl
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xor edx,edx
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add edi,320*3
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nnl:
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cmp esi,FireScreen+8000; 0x2000
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jnz newc
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mov al,7 ; display image
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; high 24 bits of eax are zero!
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pop ebx
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mov ecx,4*80*65536+200
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mov edx,1*65536+22
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int 0x40
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nodrw:
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mov eax,11 ; check if os wants to talk to us
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int 0x40
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dec eax
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jz red
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cmp al, 3-1
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jnz nob4
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button: ; get button id
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mov al,17
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int 0x40
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shr eax, 8
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dec eax
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jnz noclose
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or eax,-1 ; close this program
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int 0x40
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noclose:
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dec eax ; change fire type
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jnz nob2
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xor [type], 1
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nob2:
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dec eax ; change delay
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jnz nob3
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xor [delay], 1
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nob3:
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dec eax ; change color
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jnz nob4
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mov eax,[fcolor]
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inc eax
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; cmp al,2
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; jbe fcok
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jnp fcok
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xor eax,eax
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fcok:
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mov [fcolor],eax
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mov edi,ImageData
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mov ecx,(320*600)/4
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xor eax,eax
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rep stosd
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nob4:
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jmp sta
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; DATA SECTION
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RandSeedConst dd 0x8405
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fcolor dd 2
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xx db 'x'
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type db 0
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calc db 0
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delay dd 0
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FireSeed dd 0x1234
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text: db 'FIRE FOR MENUET'
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textlen:
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I_END:
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FireScreen:
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rb 0x2300
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ImageData:
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rb 320*200*3
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; stack
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align 512
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rb 512
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mem_end:
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