initial commit

2026-07-18 20:34:55 +02:00
commit 59ad004c96
474 changed files with 226635 additions and 0 deletions
@@ -0,0 +1,138 @@
+#include "oscar.h"
+
+const char * oscar_expand_lzo(char * dp, const char * sp)
+{
+	char	cmd = sp[0];
+	do
+	{
+		const 	char	*	cp;
+
+		if (cmd & 0x80)
+		{
+			cp = dp - sp[1];
+			cmd &= 0x7f;
+			sp += 2;
+		}
+		else
+		{
+			sp += 1;
+			cp = sp;
+			sp += cmd;
+		}
+
+		char n = 0x00;
+		do 	{
+			dp[n] = cp[n];
+			n++;
+		} while (n != cmd);
+		dp += cmd;
+
+		cmd = sp[0];
+	} while (cmd);
+
+	return sp + 1;
+}
+
+const char * oscar_expand_rle(char * dp, const char * sp)
+{
+	char cmd = sp[0];
+
+	do
+	{
+		if (cmd & 0x80)
+		{
+			char rep = (cmd & 0x70) >> 4;
+			char	c = sp[1];
+			for(signed char i=rep; i>=0; i--)
+				dp[i] = c;
+
+			rep++;
+			sp += 2;
+			dp += rep;
+
+			cmd &= 0x0f;
+			for(signed char i=cmd; i>=0; i--)
+				dp[i] = sp[i];
+
+			cmd++;
+			sp += cmd;
+			dp += cmd;
+		}
+		else if (cmd & 0x40)
+		{
+			cmd &= 0x3f;
+			sp ++;
+			for(signed char i=cmd; i>=0; i--)
+				dp[i] = sp[i];
+
+			cmd++;
+			sp += cmd;
+			dp += cmd;
+		}
+		else
+		{
+			char	c = sp[1];
+			for(signed char i=cmd; i>=0; i--)
+				dp[i] = c;
+
+			cmd++;
+			sp += 2;
+			dp += cmd;
+		}
+
+		cmd = sp[0];
+
+	} while (cmd);
+
+	return sp + 1;
+}
+
+__native const char * oscar_expand_lzo_buf(char * dp, const char * sp)
+{
+	char	buf[256];
+	char	b = 0;
+
+	char	cmd = sp[0];
+	do
+	{
+		if (cmd & 0x80)
+		{
+			char i = b - sp[1];
+			cmd &= 0x7f;
+			sp += 2;
+
+			char n = 0;
+			do 	{
+				buf[b] = dp[n] = buf[i];
+				b++;
+				i++;
+				n++;
+			} while (n != cmd);
+		}
+		else
+		{
+			sp += 1;
+
+			char n = 0;
+			do 	{
+				buf[b] = dp[n] = sp[n];
+				b++;
+				n++;
+			} while (n != cmd);
+
+			sp += cmd;
+		}
+		dp += cmd;
+
+		cmd = sp[0];
+	} while (cmd);
+
+	return sp + 1;
+}
+
+void debugcrash(void)
+{
+	__asm volatile {
+		byt $02
+	}
+}