Renamed the first sample project.

[kozos-expbrd/kozos_expbrd.git] / firm / sample / simple_mp3_player / os / lib.c

diff --git a/firm/sample/simple_mp3_player/os/lib.c b/firm/sample/simple_mp3_player/os/lib.c
new file mode 100644 (file)
index 0000000..04a6afb
--- /dev/null
+++ b/firm/sample/simple_mp3_player/os/lib.c
@@ -0,0 +1,135 @@
+#include "defines.h"
+#include "serial.h"
+#include "lib.h"
+
+void *memset(void *b, int c, long len)
+{
+  char *p;
+  for (p = b; len > 0; len--)
+    *(p++) = c;
+  return b;
+}
+
+void *memcpy(void *dst, const void *src, long len)
+{
+  char *d = dst;
+  const char *s = src;
+  for (; len > 0; len--)
+    *(d++) = *(s++);
+  return dst;
+}
+
+int memcmp(const void *b1, const void *b2, long len)
+{
+  const char *p1 = b1, *p2 = b2;
+  for (; len > 0; len--) {
+    if (*p1 != *p2)
+      return (*p1 > *p2) ? 1 : -1;
+    p1++;
+    p2++;
+  }
+  return 0;
+}
+
+int strlen(const char *s)
+{
+  int len;
+  for (len = 0; *s; s++, len++)
+    ;
+  return len;
+}
+
+char *strcpy(char *dst, const char *src)
+{
+  char *d = dst;
+  for (;; dst++, src++) {
+    *dst = *src;
+    if (!*src) break;
+  }
+  return d;
+}
+
+int strcmp(const char *s1, const char *s2)
+{
+  while (*s1 || *s2) {
+    if (*s1 != *s2)
+      return (*s1 > *s2) ? 1 : -1;
+    s1++;
+    s2++;
+  }
+  return 0;
+}
+
+int strncmp(const char *s1, const char *s2, int len)
+{
+  while ((*s1 || *s2) && (len > 0)) {
+    if (*s1 != *s2)
+      return (*s1 > *s2) ? 1 : -1;
+    s1++;
+    s2++;
+    len--;
+  }
+  return 0;
+}
+
+/* £±Ê¸»úÁ÷¿® */
+int putc(unsigned char c)
+{
+  if (c == '\n')
+    serial_send_byte(SERIAL_DEFAULT_DEVICE, '\r');
+  return serial_send_byte(SERIAL_DEFAULT_DEVICE, c);
+}
+
+/* £±Ê¸»ú¼õ¿® */
+unsigned char getc(void)
+{
+  unsigned char c = serial_recv_byte(SERIAL_DEFAULT_DEVICE);
+  c = (c == '\r') ? '\n' : c;
+  putc(c); /* ¥¨¥³¡¼¡¦¥Ð¥Ã¥¯ */
+  return c;
+}
+
+/* ʸ»úÎóÁ÷¿® */
+int puts(unsigned char *str)
+{
+  while (*str)
+    putc(*(str++));
+  return 0;
+}
+
+/* ʸ»úÎó¼õ¿® */
+int gets(unsigned char *buf)
+{
+  int i = 0;
+  unsigned char c;
+  do {
+    c = getc();
+    if (c == '\n')
+      c = '\0';
+    buf[i++] = c;
+  } while (c);
+  return i - 1;
+}
+
+/* ¿ôÃͤÎ16¿Êɽ¼¨ */
+int putxval(unsigned long value, int column)
+{
+  char buf[9];
+  char *p;
+
+  p = buf + sizeof(buf) - 1;
+  *(p--) = '\0';
+
+  if (!value && !column)
+    column++;
+
+  while (value || column) {
+    *(p--) = "0123456789abcdef"[value & 0xf];
+    value >>= 4;
+    if (column) column--;
+  }
+
+  puts(p + 1);
+
+  return 0;
+}