initial commit

2026-07-18 20:34:55 +02:00
commit 59ad004c96
474 changed files with 226635 additions and 0 deletions
@@ -0,0 +1,140 @@
+#include "vic.h"
+#include "cia.h"
+
+void vic_setbank(char bank)
+{
+	cia2.pra = (cia2.pra & 0xfc) | (bank ^ 0x03);
+}
+
+void vic_sprxy(byte s, int x, int y)
+{
+	vic.spr_pos[s].y = y;
+	vic.spr_pos[s].x = x & 0xff;
+	if (x & 0x100)
+		vic.spr_msbx |= 1 << s;
+	else
+		vic.spr_msbx &= ~(1 << s);
+}
+
+int vic_sprgetx(byte s)
+{
+	return vic.spr_pos[s].x | ((vic.spr_msbx & (1 << s)) ? 256 : 0);
+}
+
+void vic_setmode(VicMode mode, const char * text, const char * font)
+{
+	switch (mode)
+	{
+		case VICM_TEXT:
+			vic.ctrl1 = VIC_CTRL1_DEN | VIC_CTRL1_RSEL | 3;
+			vic.ctrl2 = VIC_CTRL2_CSEL;
+			break;
+		case VICM_TEXT_MC:
+			vic.ctrl1 = VIC_CTRL1_DEN | VIC_CTRL1_RSEL | 3;
+			vic.ctrl2 = VIC_CTRL2_CSEL | VIC_CTRL2_MCM;
+			break;
+		case VICM_TEXT_ECM:
+			vic.ctrl1 = VIC_CTRL1_DEN | VIC_CTRL1_ECM | VIC_CTRL1_RSEL | 3;
+			vic.ctrl2 = VIC_CTRL2_CSEL;
+			break;
+		case VICM_HIRES:
+			vic.ctrl1 = VIC_CTRL1_BMM | VIC_CTRL1_DEN | VIC_CTRL1_RSEL | 3;
+			vic.ctrl2 = VIC_CTRL2_CSEL;
+			break;
+		case VICM_HIRES_MC:
+			vic.ctrl1 = VIC_CTRL1_BMM | VIC_CTRL1_DEN | VIC_CTRL1_RSEL | 3;
+			vic.ctrl2 = VIC_CTRL2_CSEL | VIC_CTRL2_MCM;
+			break;
+		default:
+			__assume(false);
+	}
+
+	cia2.pra = (cia2.pra & 0xfc) | (((unsigned)text >> 14) ^ 0x03);	
+	vic.memptr = (((unsigned)text >> 6) & 0xf0) | (((unsigned)font >> 10) & 0x0e);
+}
+
+bool vic_isBottom(void)
+{
+	return (vic.ctrl1 & VIC_CTRL1_RST8) != 0;
+}
+
+
+void vic_waitBottom(void)
+{
+	while (!(vic.ctrl1 & VIC_CTRL1_RST8))
+		;
+}
+
+void vic_waitTop(void)
+{
+	while ((vic.ctrl1 & VIC_CTRL1_RST8))
+		;
+}
+
+void vic_waitFrame(void)
+{
+	while ((vic.ctrl1 & VIC_CTRL1_RST8))
+		;
+	while (!(vic.ctrl1 & VIC_CTRL1_RST8))
+		;	
+}
+
+void vic_waitFrames(char n)
+{
+	while (n > 0)
+	{
+		vic_waitFrame();
+		n--;
+	}
+}
+
+void vic_waitLine(int line)
+{
+	char	upper = (char)(line >> 1) & VIC_CTRL1_RST8;
+	char	lower = (char)line;
+
+	do
+	{
+		while (vic.raster != lower)
+			;
+	} while ((vic.ctrl1 & VIC_CTRL1_RST8) != upper);
+}
+
+void vic_waitBelow(int line)
+{
+	char	upper = (char)(line >> 1) & VIC_CTRL1_RST8;
+	char	lower = (char)line;
+
+	if (upper)
+	{
+		do
+		{
+			while (vic.raster <= lower)
+				;
+		} while (!(vic.ctrl1 & VIC_CTRL1_RST8));
+	}
+	else
+	{
+		while (vic.raster <= lower)
+			;
+	}
+}
+
+void vic_waitRange(char below, char above)
+{
+	while (vic.ctrl1 & VIC_CTRL1_RST8)
+		;
+
+	if (vic.raster >= above)
+	{
+		while (!(vic.ctrl1 & VIC_CTRL1_RST8))					
+			;
+		while (vic.ctrl1 & VIC_CTRL1_RST8)
+			;
+	}
+
+	while (vic.raster < below)
+		;
+}
+
+#pragma native(vic_waitLine)