Add printf-stdarg.c to the new MicroBlaze demo.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@1538 1d2547de-c912-0410-9cb9-b8ca96c0e9e2

diff --git a/Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/printf-stdarg.c b/Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/printf-stdarg.c
new file mode 100644 (file)
index 0000000..e93d97b
--- /dev/null
+++ b/Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/printf-stdarg.c
@@ -0,0 +1,282 @@
+/*\r
+       Copyright 2001, 2002 Georges Menie (www.menie.org)\r
+       stdarg version contributed by Christian Ettinger\r
+\r
+    This program is free software; you can redistribute it and/or modify\r
+    it under the terms of the GNU Lesser General Public License as published by\r
+    the Free Software Foundation; either version 2 of the License, or\r
+    (at your option) any later version.\r
+\r
+    This program is distributed in the hope that it will be useful,\r
+    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
+    GNU Lesser General Public License for more details.\r
+\r
+    You should have received a copy of the GNU Lesser General Public License\r
+    along with this program; if not, write to the Free Software\r
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
+*/\r
+\r
+/*\r
+       putchar is the only external dependency for this file,\r
+       if you have a working putchar, leave it commented out.\r
+       If not, uncomment the define below and\r
+       replace outbyte(c) by your own function call.\r
+\r
+#define putchar(c) outbyte(c)\r
+*/\r
+\r
+#include <stdarg.h>\r
+\r
+static void printchar(char **str, int c)\r
+{\r
+       extern int putchar(int c);\r
+       \r
+       if (str) {\r
+               **str = c;\r
+               ++(*str);\r
+       }\r
+       else (void)putchar(c);\r
+}\r
+\r
+#define PAD_RIGHT 1\r
+#define PAD_ZERO 2\r
+\r
+static int prints(char **out, const char *string, int width, int pad)\r
+{\r
+       register int pc = 0, padchar = ' ';\r
+\r
+       if (width > 0) {\r
+               register int len = 0;\r
+               register const char *ptr;\r
+               for (ptr = string; *ptr; ++ptr) ++len;\r
+               if (len >= width) width = 0;\r
+               else width -= len;\r
+               if (pad & PAD_ZERO) padchar = '0';\r
+       }\r
+       if (!(pad & PAD_RIGHT)) {\r
+               for ( ; width > 0; --width) {\r
+                       printchar (out, padchar);\r
+                       ++pc;\r
+               }\r
+       }\r
+       for ( ; *string ; ++string) {\r
+               printchar (out, *string);\r
+               ++pc;\r
+       }\r
+       for ( ; width > 0; --width) {\r
+               printchar (out, padchar);\r
+               ++pc;\r
+       }\r
+\r
+       return pc;\r
+}\r
+\r
+/* the following should be enough for 32 bit int */\r
+#define PRINT_BUF_LEN 12\r
+\r
+static int printi(char **out, int i, int b, int sg, int width, int pad, int letbase)\r
+{\r
+       char print_buf[PRINT_BUF_LEN];\r
+       register char *s;\r
+       register int t, neg = 0, pc = 0;\r
+       register unsigned int u = i;\r
+\r
+       if (i == 0) {\r
+               print_buf[0] = '0';\r
+               print_buf[1] = '\0';\r
+               return prints (out, print_buf, width, pad);\r
+       }\r
+\r
+       if (sg && b == 10 && i < 0) {\r
+               neg = 1;\r
+               u = -i;\r
+       }\r
+\r
+       s = print_buf + PRINT_BUF_LEN-1;\r
+       *s = '\0';\r
+\r
+       while (u) {\r
+               t = u % b;\r
+               if( t >= 10 )\r
+                       t += letbase - '0' - 10;\r
+               *--s = t + '0';\r
+               u /= b;\r
+       }\r
+\r
+       if (neg) {\r
+               if( width && (pad & PAD_ZERO) ) {\r
+                       printchar (out, '-');\r
+                       ++pc;\r
+                       --width;\r
+               }\r
+               else {\r
+                       *--s = '-';\r
+               }\r
+       }\r
+\r
+       return pc + prints (out, s, width, pad);\r
+}\r
+\r
+static int print( char **out, const char *format, va_list args )\r
+{\r
+       register int width, pad;\r
+       register int pc = 0;\r
+       char scr[2];\r
+\r
+       for (; *format != 0; ++format) {\r
+               if (*format == '%') {\r
+                       ++format;\r
+                       width = pad = 0;\r
+                       if (*format == '\0') break;\r
+                       if (*format == '%') goto out;\r
+                       if (*format == '-') {\r
+                               ++format;\r
+                               pad = PAD_RIGHT;\r
+                       }\r
+                       while (*format == '0') {\r
+                               ++format;\r
+                               pad |= PAD_ZERO;\r
+                       }\r
+                       for ( ; *format >= '0' && *format <= '9'; ++format) {\r
+                               width *= 10;\r
+                               width += *format - '0';\r
+                       }\r
+                       if( *format == 's' ) {\r
+                               register char *s = (char *)va_arg( args, int );\r
+                               pc += prints (out, s?s:"(null)", width, pad);\r
+                               continue;\r
+                       }\r
+                       if( *format == 'd' ) {\r
+                               pc += printi (out, va_arg( args, int ), 10, 1, width, pad, 'a');\r
+                               continue;\r
+                       }\r
+                       if( *format == 'x' ) {\r
+                               pc += printi (out, va_arg( args, int ), 16, 0, width, pad, 'a');\r
+                               continue;\r
+                       }\r
+                       if( *format == 'X' ) {\r
+                               pc += printi (out, va_arg( args, int ), 16, 0, width, pad, 'A');\r
+                               continue;\r
+                       }\r
+                       if( *format == 'u' ) {\r
+                               pc += printi (out, va_arg( args, int ), 10, 0, width, pad, 'a');\r
+                               continue;\r
+                       }\r
+                       if( *format == 'c' ) {\r
+                               /* char are converted to int then pushed on the stack */\r
+                               scr[0] = (char)va_arg( args, int );\r
+                               scr[1] = '\0';\r
+                               pc += prints (out, scr, width, pad);\r
+                               continue;\r
+                       }\r
+               }\r
+               else {\r
+               out:\r
+                       printchar (out, *format);\r
+                       ++pc;\r
+               }\r
+       }\r
+       if (out) **out = '\0';\r
+       va_end( args );\r
+       return pc;\r
+}\r
+\r
+int printf(const char *format, ...)\r
+{\r
+        va_list args;\r
+        \r
+        va_start( args, format );\r
+        return print( 0, format, args );\r
+}\r
+\r
+int sprintf(char *out, const char *format, ...)\r
+{\r
+        va_list args;\r
+        \r
+        va_start( args, format );\r
+        return print( &out, format, args );\r
+}\r
+\r
+\r
+int snprintf( char *buf, unsigned int count, const char *format, ... )\r
+{\r
+        va_list args;\r
+        \r
+        ( void ) count;\r
+        \r
+        va_start( args, format );\r
+        return print( &buf, format, args );\r
+}\r
+\r
+\r
+#ifdef TEST_PRINTF\r
+int main(void)\r
+{\r
+       char *ptr = "Hello world!";\r
+       char *np = 0;\r
+       int i = 5;\r
+       unsigned int bs = sizeof(int)*8;\r
+       int mi;\r
+       char buf[80];\r
+\r
+       mi = (1 << (bs-1)) + 1;\r
+       printf("%s\n", ptr);\r
+       printf("printf test\n");\r
+       printf("%s is null pointer\n", np);\r
+       printf("%d = 5\n", i);\r
+       printf("%d = - max int\n", mi);\r
+       printf("char %c = 'a'\n", 'a');\r
+       printf("hex %x = ff\n", 0xff);\r
+       printf("hex %02x = 00\n", 0);\r
+       printf("signed %d = unsigned %u = hex %x\n", -3, -3, -3);\r
+       printf("%d %s(s)%", 0, "message");\r
+       printf("\n");\r
+       printf("%d %s(s) with %%\n", 0, "message");\r
+       sprintf(buf, "justif: \"%-10s\"\n", "left"); printf("%s", buf);\r
+       sprintf(buf, "justif: \"%10s\"\n", "right"); printf("%s", buf);\r
+       sprintf(buf, " 3: %04d zero padded\n", 3); printf("%s", buf);\r
+       sprintf(buf, " 3: %-4d left justif.\n", 3); printf("%s", buf);\r
+       sprintf(buf, " 3: %4d right justif.\n", 3); printf("%s", buf);\r
+       sprintf(buf, "-3: %04d zero padded\n", -3); printf("%s", buf);\r
+       sprintf(buf, "-3: %-4d left justif.\n", -3); printf("%s", buf);\r
+       sprintf(buf, "-3: %4d right justif.\n", -3); printf("%s", buf);\r
+\r
+       return 0;\r
+}\r
+\r
+/*\r
+ * if you compile this file with\r
+ *   gcc -Wall $(YOUR_C_OPTIONS) -DTEST_PRINTF -c printf.c\r
+ * you will get a normal warning:\r
+ *   printf.c:214: warning: spurious trailing `%' in format\r
+ * this line is testing an invalid % at the end of the format string.\r
+ *\r
+ * this should display (on 32bit int machine) :\r
+ *\r
+ * Hello world!\r
+ * printf test\r
+ * (null) is null pointer\r
+ * 5 = 5\r
+ * -2147483647 = - max int\r
+ * char a = 'a'\r
+ * hex ff = ff\r
+ * hex 00 = 00\r
+ * signed -3 = unsigned 4294967293 = hex fffffffd\r
+ * 0 message(s)\r
+ * 0 message(s) with %\r
+ * justif: "left      "\r
+ * justif: "     right"\r
+ *  3: 0003 zero padded\r
+ *  3: 3    left justif.\r
+ *  3:    3 right justif.\r
+ * -3: -003 zero padded\r
+ * -3: -3   left justif.\r
+ * -3:   -3 right justif.\r
+ */\r
+\r
+#endif\r
+\r
+\r
+\r
+\r