Written By - Sandeep Dutta . sandeep.dutta@usa.net (1999)
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
+ This library is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Library General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
- This program is distributed in the hope that it will be useful,
+ This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ GNU Library General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
what you give them. Help stamp out software-hoarding!
+
+ 2001060401: Improved by was@icb.snz.chel.su
-------------------------------------------------------------------------*/
+
/* following formats are supported :-
format output type argument-type
%d decimal int
%ld decimal long
- %hd decimal short/char
+ %hd decimal char
%x hexadecimal int
%lx hexadecimal long
- %hx hexadecimal short/char
+ %hx hexadecimal char
%o octal int
%lo octal long
- %ho octal short/char
- %c character char/short
- %s character _generic pointer
+ %ho octal char
+ %c character char
+ %s character generic pointer
*/
#include <stdarg.h>
-#include <reg51.h>
-extern void putchar(char );
+#include <stdio.h>
+#include <stdlib.h>
+#ifndef __ds390
+/* just for the SP */
+#include <8051.h>
+#endif
-static data volatile char ch;
static data char radix ;
static bit long_flag = 0;
static bit string_flag =0;
-static bit short_flag = 0;
-static bit sign;
+static bit char_flag = 0;
static char * data str ;
static data long val;
-static void pvalhex( long val)
-{
- volatile char sp = SP;
- unsigned long lval = val;
-
- if (!long_flag)
- lval &= 0x0000ffff;
+/* This great loop fails with the ds390 port (2003-01-13).
- if (short_flag)
- lval &= 0x000000ff;
+ At the beginning resp. end of the loop the compiler inserts a "push ar2"
+ resp. "pop ar2", which badly interfers with the push/pop in the source.
- while (lval) {
- ch = "0123456789ABCDEF"[(unsigned short)lval & 0x0f];
- _asm push _ch _endasm;
- lval /= 16;
- }
+ Library functions should be rock solid and portable. There's an _ltoa in
+ the library, so let's use it and don't reinvent the wheel.
- while (sp != SP) {
- _asm pop _ch _endasm;
- putchar(ch);
- }
+ Bernhard
+*/
-}
+#if NICE_LIFO_IMPLEMENTATION_BUT_NOT_PORTABLE
+static data volatile char ch;
+static bit sign;
-static void pvaloct(long val)
+static void pval(void)
{
- char sp ;
- unsigned long lval;
- sp = SP;
- if (val < 0) {
- lval = -val;
- sign = 1;
- } else {
- lval = val;
- sign = 0;
- }
-
- if (!long_flag)
- lval &= 0x0000ffff;
- if (short_flag)
- lval &= 0x000000ff;
-
- while (lval) {
- ch = (lval % 8) + '0';
- _asm push _ch _endasm;
- lval = lval / 8;
- }
-
- if (sign) {
- ch = '-';
- _asm push _ch _endasm;
- }
-
-
- while (sp != SP) {
- _asm pop _ch _endasm;
- putchar(ch);
+ volatile char sp;
+ unsigned long lval;
+ sp = SP;
+
+ if (val < 0 && radix != 16)
+ {
+ lval = -val;
+ sign = 1;
}
-}
+ else { sign = 0; lval = val;}
+
+ if (!long_flag) {
+ lval &= 0x0000ffff;
+ }
+ if (char_flag) {
+ lval &= 0x000000ff;
+ }
+
+ do
+ {
+
+# if 1
+ if(radix != 16) ch = (lval % radix) + '0';
+ else ch = "0123456789ABCDEF"[(unsigned char)lval & 0x0f];
+ _asm push _ch _endasm;
+ lval /= radix;
+# else
+ // This only looks more efficient, but isn't. see the .map
+ ch = (lval % radix) + '0';
+ if (ch>'9') ch+=7;
+ _asm push _ch _endasm;
+ lval /= radix;
+# endif
+ }
+ while (lval);
-static void pvaldec(long val )
-{
- char sp ;
- unsigned long lval;
- sp = SP;
- if (val < 0) {
- lval = -val;
- sign = 1;
- } else {
- lval = val;
- sign = 0;
- }
-
- while (lval) {
- ch = (lval % 10) + '0';
- _asm push _ch _endasm;
- lval = lval / 10;
- }
-
- if (sign) {
- ch = '-';
- _asm push _ch _endasm;
- }
-
-
- while (sp != SP) {
- _asm pop _ch _endasm;
- putchar(ch);
+ if (sign) {
+ ch = '-';
+ _asm push _ch _endasm;
+ }
+
+ while (sp != SP) {
+ _asm pop _ch _endasm;
+ putchar(ch);
}
}
+#endif
void printf_small (char * fmt, ... ) reentrant
{
va_start(ap,fmt);
for (; *fmt ; fmt++ ) {
- if (*fmt == '%') {
- long_flag = string_flag = short_flag = 0;
- fmt++ ;
- switch (*fmt) {
- case 'l':
- long_flag = 1;
- fmt++;
- break;
- case 'h':
- short_flag = 1;
- fmt++;
- }
-
- switch (*fmt) {
- case 's':
- string_flag = 1;
- break;
- case 'd':
- radix = 10;
- break;
- case 'x':
- radix = 16;
- break;
- case 'c':
- radix = 0;
- break;
- case 'o':
- radix = 8;
- break;
- }
-
- if (string_flag) {
- str = va_arg(ap,char _generic *);
- while (*str) putchar(*str++);
- continue ;
- }
-
- if (long_flag)
- val = va_arg(ap,long);
- else
- if (short_flag)
- val = va_arg(ap,short);
- else
- val = va_arg(ap,int);
-
- switch (radix) {
- case 10:
- pvaldec(val) ;
- break;
- case 16:
- pvalhex (val);
- break;
- case 0:
- putchar((char)val);
- break;
- case 8:
- pvaloct(val) ;
- break;
- }
-
- } else
- putchar(*fmt);
+ if (*fmt == '%') {
+ long_flag = string_flag = char_flag = 0;
+ fmt++ ;
+ switch (*fmt) {
+ case 'l':
+ long_flag = 1;
+ fmt++;
+ break;
+ case 'h':
+ char_flag = 1;
+ fmt++;
+ }
+
+ switch (*fmt) {
+ case 's':
+ string_flag = 1;
+ break;
+ case 'd':
+ radix = 10;
+ break;
+ case 'x':
+ radix = 16;
+ break;
+ case 'c':
+ radix = 0;
+ break;
+ case 'o':
+ radix = 8;
+ break;
+ }
+
+ if (string_flag) {
+ str = va_arg(ap, char *);
+ while (*str) putchar(*str++);
+ continue ;
+ }
+
+ if (long_flag)
+ val = va_arg(ap,long);
+ else
+ if (char_flag)
+ val = va_arg(ap,char);
+ else
+ val = va_arg(ap,int);
+
+#if NICE_LIFO_IMPLEMENTATION_BUT_NOT_PORTABLE
+ if (radix) pval();
+#else
+ if (radix)
+ {
+ static char data buffer[12], c;
+
+ _ltoa (val, buffer, radix);
+ str = buffer;
+ while ((c = *str++) != '\0')
+ putchar (c);
+ }
+#endif
+ else
+ putchar((char)val);
+
+ } else
+ putchar(*fmt);
}
}
projects / fw / sdcc / blobdiff