69 lines
1.1 KiB
C
69 lines
1.1 KiB
C
#include <c64/memmap.h>
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#include <c64/vic.h>
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#include <gfx/bitmap.h>
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#include <string.h>
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#include <conio.h>
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#define Color ((char *)0xd000)
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#define Hires ((char *)0xe000)
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Bitmap Screen;
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void init(void)
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{
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mmap_trampoline();
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mmap_set(MMAP_RAM);
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memset(Color, 0x01, 1000);
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memset(Hires, 0x00, 8000);
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mmap_set(MMAP_NO_ROM);
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vic_setmode(VICM_HIRES, Color, Hires);
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vic.color_border = VCOL_WHITE;
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bm_init(&Screen, Hires, 40, 25);
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}
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void done(void)
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{
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mmap_set(MMAP_ROM);
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getch();
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vic_setmode(VICM_TEXT, (char *)0x0400, (char *)0x1000);
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}
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void draw(ClipRect * cr, byte pattern)
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{
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for(int i=0; i<40; i ++)
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{
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bm_line(&Screen, cr, 8 * i, 0, 319, 5 * i, pattern);
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bm_line(&Screen, cr, 319, 5 * i, 319 - 8 * i, 199, pattern);
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bm_line(&Screen, cr, 319 - 8 * i, 199, 0, 199 - 5 * i, pattern);
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bm_line(&Screen, cr, 0, 199 - 5 * i, 8 * i, 0, pattern);
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}
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}
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int main(void)
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{
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init();
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ClipRect cr = {0, 0, 320, 200};
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draw(&cr, 0xff);
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draw(&cr, 0x00);
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draw(&cr, 0xff);
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draw(&cr, 0xaa);
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draw(&cr, 0x88);
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draw(&cr, 0x80);
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draw(&cr, 0x00);
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done();
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return 0;
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}
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