| 141,6 → 141,8 |
|---|
| align 8 |
| sdsh_data: |
| |
| diff16 "sdsh_data : ",0,$ |
| |
| include 'fonts/sd_data.asm' |
| |
| sdsh_code: |
| 154,6 → 156,8 |
|---|
| ; then dl = single char to write |
| ; else edx= pointer to asciiz-string |
| |
| diff16 "draw_char : ",0,$ |
| |
| draw_char: |
| ; font test |
| ; bl=y; bh=x |
| 164,6 → 168,7 |
|---|
| xor edi, edi |
| mov ebp, edi |
| |
| |
| sdsh_draw_char: |
| ; eax = left side X |
| ; ebx = bottom Y |
| 175,11 → 180,10 |
|---|
| push ebp |
| shl ebp, 4 |
| add ebp, sdsh_data.info |
| call ch_checkscreen |
| jb .exit |
| call ch_checkwin |
| jc .exit |
| xor ch, ch |
| ; call ch_checkscreen |
| ; jb .exit |
| ; call ch_checkwin |
| ; jc .exit |
| mov edx, [ebp + 4] ; chartable addr |
| mov cx, word[edx + ecx*2] ; tick info |
| mov edx, ecx |
| 186,10 → 190,10 |
|---|
| and ecx, 7 ; cl = number of ticks |
| jz .blank |
| shr edx, 4 ; offset in the chartable |
| add edx, [sdsh_data.chars] ; edx -> the char's ticklist |
| add edx, sdsh_data.chars ; edx -> the char's ticklist |
| .next_tick: |
| call parse_tick |
| add edx, 4 |
| add edx, 2 |
| dec cl |
| jnz .next_tick |
| .blank: |
| 201,6 → 205,7 |
|---|
| |
| |
| parse_tick: |
| diff16 "parse_tick : ",0,$ |
| ; eax = left side X |
| ; ebx = bottom Y |
| ; edx ->tickinfo |
| 330,7 → 335,7 |
|---|
| add dl, 8 |
| .lntick.both: |
| sub dl, 2 ; num_vertice = num_points - 2 |
| and cl, 0x18 ; two rotation bits |
| and cl, 0x18 ; two (lower) rotation bits |
| shr cl, 3 |
| mov esi, sdsh_data.blank |
| .draw: |
| 350,6 → 355,7 |
|---|
| ret |
| |
| |
| diff16 "draw_tick : ",0,$ |
| |
| draw_tick: |
| ; eax = x-origin |
| 356,80 → 362,94 |
|---|
| ; ebx = y-origin |
| ; edi = 0x0RRGGBB |
| ; cl = direction (0..7) |
| ; dl = number of vertices (dl) |
| ; dl = number of vertice (dl) |
| ; esi -> tick bitfield |
| |
| pushad |
| inc dl ; -- that's to count down to 0 |
| call ch_putpixel ; the point of origin |
| and ecx, 7 |
| call [.moves + ecx*4] ; basic vector |
| lea ebp, [.move000+ ecx*4] |
| call ebp ; basic vector |
| call ch_putpixel |
| dec dl |
| jz .done ; 2pix lines only |
| mov esi, dword [esi] ; max 16 vertice bitfield limit |
| and edx, 15 |
| jz .done ; no vertex (2pix line) |
| mov esi, dword [esi] ; 15 vertice will easily fit to 1dw |
| xchg esi, edx |
| .move_and_draw: |
| mov ch, dl |
| and ch, 3 |
| jz .moved |
| btc ecx, 8 |
| dec ch |
| jz .1 |
| dec ch |
| jz .2 |
| .3: |
| dec cl |
| .1: |
| dec cl ; right turns (1 and 3) |
| and cl, 7 |
| @@: btc ecx, 9 ; straight angle (3) ? |
| jc .1 |
| jmp .moved |
| dec cl |
| jmp .wipe_it |
| .2: |
| inc cl ; left turn (2) |
| and cl, 7 |
| btc ecx, 9 ; just to zero ah |
| inc cl |
| .wipe_it: |
| and ecx, 7 |
| .moved: |
| call [.moves + ecx*4] ; go new way |
| diff16 "moved : ",0,$ |
| lea ebp, [.move000+ ecx*4] |
| call ebp ; go new way |
| call ch_putpixel |
| shr edx, 2 |
| dec esi |
| jnz .move_and_draw |
| diff16 "done : ",0,$ |
| .done: |
| popad |
| ret |
| |
| ; WARNING! The order matters! ------ |
| align 4 |
| diff16 "move000 : ",0,$ |
| .move000: |
| inc eax |
| ret |
| align 4 |
| .move001: |
| inc eax |
| dec ebx |
| ret |
| align 4 |
| .move010: |
| dec ebx |
| ret |
| align 4 |
| .move011: |
| dec eax |
| dec ebx |
| ret |
| align 4 |
| .move100: |
| dec eax |
| ret |
| align 4 |
| .move101: |
| dec eax |
| inc ebx |
| ret |
| align 4 |
| .move110: |
| inc ebx |
| ret |
| |
| align 4 |
| diff10 "move111-move000 (must be 28!) : ",.move000,$ |
| .move111: |
| inc eax |
| inc ebx |
| ret |
| |
| align 4 |
| .moves dd .move000, .move001, .move010, .move011, .move100, .move101, .move110, .move111 |
| ;) --------------- |
| |
| ;) |
| |
| align 4 |
| diff16 "checkscreen : ",0,$ |
| ch_checkscreen: |
| cmp [Screen_Max_X], eax |
| jb .getout |
| 438,6 → 458,7 |
|---|
| ret |
| |
| align 4 |
| diff16 "checkwin : ",0,$ |
| ch_checkwin: |
| ; eax = x coordinate |
| ; ebx = y coordinate |
| 472,6 → 493,7 |
|---|
| ret |
| |
| align 4 |
| diff16 "ch_putpix : ",0,$ |
| ch_putpixel: |
| ; eax = x coordinate |
| ; ebx = y coordinate |