; ; Spiral demo using Turtle graphics ; ; Written in UASM by 0CorErr ; Translated to FASM by dunkaist ; use32 org 0 db 'MENUET01' dd 0x01,start,i_end,e_end,e_end,params,0 include 'proc32.inc' include 'macros.inc' struct RGB Blue db ? Green db ? Red db ? ends struct HSV Hue dw ? Sat db ? Val db ? ends struct Turtle PosX dd ? PosY dd ? Orientation dd ? PenColor HSV ends proc forward _t, _d locals .x1 dd ? .x2 dd ? .y1 dd ? .y2 dd ? endl mov eax, [_t] fld [eax+Turtle.PosX] fistp [.x1] fld [eax+Turtle.PosY] fistp [.y1] fld [eax+Turtle.Orientation] fcos fmul [_d] fadd [eax+Turtle.PosX] fstp [eax+Turtle.PosX] fld [eax+Turtle.Orientation] fsin fmul [_d] fadd [eax+Turtle.PosY] fstp [eax+Turtle.PosY] fld [eax+Turtle.PosX] fistp [.x2] fld [eax+Turtle.PosY] fistp [.y2] mov ebx, [.x1] shl ebx, 16 add ebx, [.x2] mov ecx, [.y1] shl ecx, 16 add ecx, [.y2] mov edx, [color] mcall 38 ret endp proc turn _t, _degrees mov eax, [_t] fldpi fmul [_degrees] fdiv [float_180] fadd [eax+Turtle.Orientation] fstp [eax+Turtle.Orientation] ret endp proc reposition _t, _x, _y mov eax, [_t] mov ecx, [_x] mov [eax+Turtle.PosX], ecx mov ecx, [_y] mov [eax+Turtle.PosY], ecx ret endp ; H = 0..360, S = 0..255, V = 0..255 --> R = 0..255, G = 0..255, B = 0..255 proc hsv_to_rgb uses ebx, _h, _s, _v, _rgb locals .f dd ? .vs dd ? endl mov ebx, [_rgb] cmp [_s], 0 jnz @f mov eax, [_v] mov [ebx+RGB.Red], al mov [ebx+RGB.Green], al mov [ebx+RGB.Blue], al jmp .end @@: cmp [_h], 360 jnz @f mov [_h], 0 @@: mov eax, [_v] mul [_s] mov [.vs], eax mov eax, [_h] mov ecx, 60 xor edx, edx div ecx mov [.f], edx test eax, eax jnz @f mov eax, [_v] mov [ebx+RGB.Red], al mov eax, 60 sub eax, [.f] mul [.vs] xor edx, edx div [dword_255_mul_60] mov edx, [_v] sub dl, al mov [ebx+RGB.Green], dl mov eax, [.vs] xor edx, edx div [dword_255] mov edx, [_v] sub dl, al mov [ebx+RGB.Blue], dl jmp .end @@: cmp eax, 1 jnz @f mov eax, [.vs] mul [.f] xor edx, edx div [dword_255_mul_60] mov edx, [_v] sub dl, al mov [ebx+RGB.Red], dl mov eax, [_v] mov [ebx+RGB.Green], al mov eax, [.vs] xor edx, edx div [dword_255] mov edx, [_v] sub dl, al mov [ebx+RGB.Blue], dl jmp .end @@: cmp eax, 2 jnz @f mov eax, [.vs] xor edx, edx div [dword_255] mov edx, [_v] sub dl, al mov [ebx+RGB.Red], dl mov eax, [_v] mov [ebx+RGB.Green], al mov eax, 60 sub eax, [.f] mul [.vs] xor edx, edx div [dword_255_mul_60] mov edx, [_v] sub dl, al mov [ebx+RGB.Blue], dl jmp .end @@: cmp eax, 3 jnz @f mov eax, [.vs] xor edx, edx div [dword_255] mov edx, [_v] sub dl, al mov [ebx+RGB.Red], dl mov eax, [.vs] mul [.f] xor edx, edx div [dword_255_mul_60] mov edx, [_v] sub dl, al mov [ebx+RGB.Green], dl mov eax, [_v] mov [ebx+RGB.Blue], al jmp .end @@: cmp eax, 4 jnz @f mov eax, 60 sub eax, [.f] mul [.vs] xor edx, edx div [dword_255_mul_60] mov edx, [_v] sub dl, al mov [ebx+RGB.Red], dl mov eax, [.vs] xor edx, edx div [dword_255] mov edx, [_v] sub dl, al mov [ebx+RGB.Green], dl mov eax, [_v] mov [ebx+RGB.Blue], al jmp .end @@: cmp eax, 5 jnz @f mov eax, [_v] mov [ebx+RGB.Red], al mov eax, [.vs] xor edx, edx div [dword_255] mov edx, [_v] sub dl, al mov [ebx+RGB.Green], dl mov eax, [.vs] mul [.f] xor edx, edx div [dword_255_mul_60] mov edx, [_v] sub dl, al mov [ebx+RGB.Blue], dl @@: .end: ret endp proc hue_shift _t, _n mov ecx, [_t] movzx eax, [ecx+Turtle.PenColor.Hue] add eax, [_n] xor edx, edx div [dword_360] mov [ecx+Turtle.PenColor.Hue], dx movzx eax, [ecx+Turtle.PenColor.Hue] movzx edx, [ecx+Turtle.PenColor.Sat] movzx ecx, [ecx+Turtle.PenColor.Val] stdcall hsv_to_rgb, eax, edx, ecx, color ret endp proc query_perf locals .diff dd ? endl mcall 26, 9 sub eax, [frame_start] mov [.diff], eax fild [.diff] fild [freq] fdivrp fstp [instant] mcall 26, 9 mov [frame_start], eax ret endp proc waiting fld [max_frame_rate] fld [instant] fcomip st1 fstp st0 jna @f inc [sleep_time] jmp .end @@: fld [min_frame_rate] fld [instant] fcomip st1 fstp st0 jnc .end cmp [sleep_time], 0 jz .end dec [sleep_time] .end: mcall 5, [sleep_time] ret endp proc drawing locals .i dd ? .n dd ? .posx dd ? .posy dd ? endl mov [turtle.Orientation], 0 mov eax, [window_width] mov ecx, [window_height] shr eax, 1 shr ecx, 1 mov [.posx], eax mov [.posy], ecx fild [.posx] fstp [.posx] fild [.posy] fstp [.posy] stdcall reposition, turtle, [.posx], [.posy] mov [.n], 5.0 mov eax, [window_height] imul eax, 15 shr eax, 4 mov ecx, eax xor edx, edx div [dword_360] neg edx add edx, ecx sub edx, 10 mov [.i], edx @@: stdcall hue_shift, turtle, 1 stdcall forward, turtle, [.n] stdcall turn, turtle, 72.5 fld [.n] fadd [ndelta] fstp [.n] dec [.i] jnz @b ret endp start: cmp dword[params], '@ss' setz [screensaver] mov ebx, EVM_REDRAW + EVM_KEY cmovz ebx, EVM_REDRAW + EVM_KEY + EVM_MOUSE mcall 40 mov edi, transparent_cursor xor eax, eax mov ecx, 32*32 rep stosd mcall 37, 4, transparent_cursor, 2 mov ecx, eax mcall 37, 5 mcall 14 add eax, 0x00010001 movzx ecx, ax shr eax, 16 mov [window_width], eax mov [window_height], ecx mcall 26, 9 mov [frame_start], eax .still: mcall 11 dec eax js .draw_spiral ; no event jnz .quit mcall 12, 1 mcall 0, [window_width], [window_height], 0, 0x01000000 mcall 12, 2 .draw_spiral: cmp [screensaver], 0 jz @f mcall 9, proc_info, -1 cmp [proc_info.window_stack_position], ax jnz .quit @@: stdcall query_perf stdcall drawing stdcall waiting jmp .still .quit: cmp [screensaver], 0 jz @f mcall 70, f70 @@: mcall -1 align 4 dword_255_mul_60 dd 255 * 60 dword_255 dd 255 dword_360 dd 360 float_180 dd 180.0 ndelta dd 0.6 ; used in drawing Proc: n = n + ndelta max_frame_rate dd 15.0 ; to keep the FrameRate min_frame_rate dd 8.0 ; around min_frame_rate..max_frame_rate FPS freq dd 100 ; GetTickCount return count of 1/100s of second instant dd 0.0 sleep_time dd 0 turtle Turtle 0.0, 0.0, 0.0, <180, 255, 255> f70: ; run dd 7, 0, 0, 0, 0 db '/sys/@ss',0 i_end: align 4 window_width dd ? window_height dd ? frame_start dd ? color dd ? proc_info process_information params rb 0x400 transparent_cursor rd 32*32 screensaver db ? align 4 rb 0x200 e_end: