Import backup from 2004-08-02

kernel/lang/asmfuncs.h

@@ -0,0 +1,27 @@
+// asmfuncs.h
+// Author: Josh Holtrop
+// Created: 02/26/04
+// Modified: 07/11/04
+
+#ifndef __HOS_ASMFUNCS__
+#define __HOS_ASMFUNCS__ __HOS_ASMFUNCS__
+
+u32_t write_cr0(u32_t cr0);
+u32_t read_cr0();
+u32_t write_cr3(u32_t cr3);
+u32_t read_cr2();
+u32_t read_cr3();
+void writeCursorPosition(u32_t pos);
+u32_t getCursorPosition();
+void strcpy(char *dest, const char *src);
+void memcpy(void *dest, const void *src, u32_t n);
+void memcpyd(void *dest, const void *src, u32_t n);
+void *memset(void *buffer, int c, int num);
+void *memsetw(void *buffer, int c, int num);
+void *memsetd(void *buffer, int c, int num);
+u32_t strlen(const char *str);
+void invlpg_(u32_t addr);
+
+#endif
+
+

kernel/lang/conv.c

@@ -0,0 +1,83 @@
+// conv.h
+// Author: Josh Holtrop
+// Date: 08/02/04
+
+#include "conv.h"
+#include "hos_defines.h"
+
+// BCD to string
+// returns number of characters generated before null terminator
+int	bcdtoa(u32_t bcd, char *buf)
+{
+	*buf++ = ((bcd & 0xF0) >> 4) + '0';
+	*buf++ = (bcd & 0xF) + '0';
+	*buf = 0;
+	return 2;
+}
+
+
+// convert integer to hexadecimal string
+int	itox(u32_t num, char *buf)
+{
+	int s, i = 0;
+	for (s = 28; s >= 0; s -= 4)
+	{
+		u32_t val = (num >> s) & 0xF;
+		if (i || val || (!s))
+		{
+			val = (val > 9) ? (val + 'A' - 10) : (val + '0');
+			buf[i++] = val;
+		}
+	}
+	buf[i] = 0;
+	return i - 1;
+}
+
+
+// convert signed integer to decimal string
+int	itoa(int num, char *buf)
+{
+	// 4,294,967,296
+	int hitNum = 0, i = 0, mod, val;
+	if (num < 0)
+	{
+		buf[i++] = '-';
+		num = -num;
+	}
+	for (mod = 1000000000; mod >= 1; mod /= 10)
+	{
+		val = num / mod;
+		num %= mod;
+		if (val || (mod == 1))
+			hitNum = 1;
+		if (hitNum)
+		{
+			buf[i++] = val + '0';
+		}
+	}
+	buf[i] = 0;
+	return i - 1;
+}
+
+
+// convert an unsigned integer to decimal string
+int	utoa(u32_t num, char *buf)
+{
+	// 4,294,967,296
+	int hitNum = 0, i = 0, mod, val;
+	for (mod = 1000000000; mod >= 1; mod /= 10)
+	{
+		val = num / mod;
+		num %= mod;
+		if (val || (mod == 1))
+			hitNum = 1;
+		if (hitNum)
+		{
+			buf[i++] = val + '0';
+		}
+	}
+	buf[i] = 0;
+	return i - 1;
+}
+
+

kernel/lang/conv.h

@@ -0,0 +1,16 @@
+// conv.h
+// Author: Josh Holtrop
+// Date: 08/02/04
+
+#ifndef __HOS_CONV__
+#define __HOS_CONV__ __HOS_CONV__
+
+#include "hos_defines.h"
+
+int	bcdtoa(u32_t bcd, char *buf);
+int	itox(u32_t num, char *buf);
+int	itoa(int num, char *buf);
+int	utoa(u32_t num, char *buf);
+
+#endif
+