mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-06-01 05:41:31 +00:00
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
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#include <cv.h>
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#include <cvu.h>
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#ifdef CV_SMS
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//#link "fonts.s"
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extern uintptr_t font_bitmap_a[];
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extern uintptr_t font_bitmap_0[];
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#endif
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#define wait_vsync() __asm__("halt")
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#define PATTERN 0x0000 // 256*8 = 2048 bytes
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#define IMAGE 0x2000 // 32*24 = 768 bytes
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#define COLOR 0x0b00 // 32 bytes
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#define SPRITE_PATTERNS 0x3800 // 32*32 = 1024 bytes
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#define SPRITES 0x3c00 // 4*32 = 128 bytes
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/*{pal:222,n:16}*/
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const char PALETTE0[16] = {
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x0D,
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};
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/*{pal:222,n:16}*/
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const char PALETTE1[16] = {
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x3F,
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};
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/*{w:8,h:8,bpp:1,count:2,brev:1,np:4,pofs:1,sl:4}*/
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const char PATTERNS[64] = {
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0x00, 0x00, 0x00, 0x00,
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0x3C, 0x3C, 0x3C, 0x3C,
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0x56, 0x7E, 0x56, 0x56,
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0x7E, 0x7E, 0x7E, 0x7E,
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0x62, 0x62, 0x62, 0x62,
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0x3C, 0x3C, 0x3C, 0x3C,
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0x18, 0x3E, 0x18, 0x3E,
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0x18, 0x7F, 0x00, 0x7F,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF,
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0x55, 0x66, 0x77, 0xFF,
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0xC0, 0xC0, 0xC0, 0xC0,
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0x05, 0x06, 0x07, 0x08,
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0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF,
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};
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void expand_monobitmap(const char* src, int count) {
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while (count--) {
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char b = *src++;
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cv_voutb(b);
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cv_voutb(b);
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cv_voutb(b);
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cv_voutb(b);
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}
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}
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void setup_graphics() {
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cv_set_screen_mode(CV_SCREENMODE_4);
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cv_set_character_pattern_t(PATTERN | 0x3000);
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cv_set_image_table(IMAGE | 0x400);
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cv_set_sprite_attribute_table(SPRITES);
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/*
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cvu_vmemset(0, 0, 0x4000);
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cv_set_colors(0x2, 0x5);
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cv_set_color_table(COLOR | 0xfff);
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cv_set_sprite_pattern_table(SPRITE_PATTERNS | 0x1800);
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*/
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cv_set_write_vram_address(PATTERN + '0'*32);
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expand_monobitmap(font_bitmap_0, (128-48)*8);
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cvu_memtovmemcpy(PATTERN+32, PATTERNS, 32);
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cvu_memtocmemcpy(0xc000, PALETTE0, 16);
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cvu_memtocmemcpy(0xc010, PALETTE1, 16);
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}
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void show_text() {
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cvu_vmemset(IMAGE, 0, 32*28);
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cvu_memtovmemcpy(IMAGE, "H e l l o P r o f e s s o r F a l k e n ", 22*2);
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cv_voutb(0x01);
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cv_voutb(0x00);
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}
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void main() {
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char i=0;
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struct cvu_sprite4 sprite;
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setup_graphics();
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show_text();
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cv_set_screen_active(true);
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while (1) {
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wait_vsync();
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i++;
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cv_set_hscroll(i);
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cv_set_vscroll(i);
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sprite.y = i;
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sprite.x = i;
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sprite.name = 1;
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cvu_set_sprite4(SPRITES, 0, &sprite);
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}
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}
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