initial commit

2026-07-18 20:34:55 +02:00
commit 59ad004c96
474 changed files with 226635 additions and 0 deletions
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+#include <c64/vic.h>
+#include <c64/rasterirq.h>
+#include <conio.h>
+#include <string.h>
+
+
+char spdata[] = {
+#embed "../resources/friendlybear.bin"	
+};
+
+// Raster IRQs for last line of screen and below
+RIRQCode	open, bottom;
+
+int main(void)
+{
+	// initialize raster IRQ
+	rirq_init(true);
+
+	// Build open border raster IRQ
+	rirq_build(&open, 1);
+	// Reduce vertical screen size to fool VIC counter
+	rirq_write(&open, 0, &vic.ctrl1, VIC_CTRL1_DEN | 3);
+	// Place it into the last line of the screen
+	rirq_set(0, 50 + 200 - 3, &open);
+
+	// Build switch to normal raster IRQ
+	rirq_build(&bottom, 1);
+	rirq_write(&bottom, 0, &vic.ctrl1, VIC_CTRL1_DEN | VIC_CTRL1_RSEL | 3 );
+	rirq_set(1, 50, &bottom);
+
+	// sort the raster IRQs
+	rirq_sort();
+
+	// start raster IRQ processing
+	rirq_start();
+
+	// Copy the sprite data
+	memcpy((char *)0x0380, spdata, 128);
+
+	// Initialize sprites
+	*(char *)(0x7f8) = 0x03c0 / 64;
+	*(char *)(0x7f9) = 0x0380 / 64;
+	*(char *)(0x7fa) = 0x03c0 / 64;
+	*(char *)(0x7fb) = 0x0380 / 64;
+	*(char *)(0x7fc) = 0x03c0 / 64;
+	*(char *)(0x7fd) = 0x0380 / 64;
+	*(char *)(0x7fe) = 0x03c0 / 64;
+	*(char *)(0x7ff) = 0x0380 / 64;
+
+	vic.spr_enable = 0b11111111;
+    vic.spr_multi = 0b10101010;
+    vic.spr_color[0] = VCOL_BLACK;
+    vic.spr_color[1] = VCOL_ORANGE;
+    vic.spr_color[2] = VCOL_BLACK;
+    vic.spr_color[3] = VCOL_ORANGE;
+    vic.spr_color[4] = VCOL_BLACK;
+    vic.spr_color[5] = VCOL_ORANGE;
+    vic.spr_color[6] = VCOL_BLACK;
+    vic.spr_color[7] = VCOL_ORANGE;
+    vic.spr_mcolor0 = VCOL_BROWN;
+    vic.spr_mcolor1 = VCOL_WHITE;
+
+    for(;;)
+    {
+    	// Move sprites through all vertical positions
+    	for(int i=0; i<255; i++)
+    	{
+			vic_sprxy(0, 100, 1 * i); vic_sprxy(1, 100, 1 * i);
+			vic_sprxy(2, 140, 2 * i); vic_sprxy(3, 140, 2 * i);
+			vic_sprxy(4, 180, 3 * i); vic_sprxy(5, 180, 3 * i);
+			vic_sprxy(6, 220, 4 * i); vic_sprxy(7, 220, 4 * i);
+
+    		rirq_wait();
+    	}
+    }
+
+	return 0;
+}