44 lines
989 B
C
44 lines
989 B
C
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/*
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This demo uncompresses the Mode 2 bitmap from a
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compressed LZG stream in ROM. This takes several times
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longer than just copying it from ROM.
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*/
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#include <stdlib.h>
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#include <cv.h>
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#include <cvu.h>
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#include "common.h"
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/* link in MODE 2 bitmap data */
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//#link "lzg.c"
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//#link "sailboat-lzg.s"
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extern const unsigned char msx_bitmap_lzg[];
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void lzg_decode_vram(const char* src, unsigned int dest, unsigned int count);
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void setup_mode2() {
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cvu_vmemset(0, 0, 0x4000);
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cv_set_screen_mode(CV_SCREENMODE_BITMAP); // mode 2
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cv_set_image_table(IMAGE);
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cv_set_character_pattern_t(PATTERN|0x1fff); // AND mask
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cv_set_color_table(COLOR|0x1fff); // AND mask
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cv_set_sprite_attribute_table(SPRITES);
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}
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void main() {
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cv_set_screen_active(false);
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setup_mode2();
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lzg_decode_vram(msx_bitmap_lzg, PATTERN, 0x3800);
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cv_set_screen_active(true);
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while (1) {
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//cv_set_character_pattern_t(PATTERN|rand()); // AND mask
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//cv_set_color_table(COLOR|rand()); // AND mask
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}
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}
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