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author | Josh Blum <josh@joshknows.com> | 2010-02-10 11:57:58 -0800 |
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committer | Josh Blum <josh@joshknows.com> | 2010-02-10 11:57:58 -0800 |
commit | d088a11bf7c257ba45bf0c37a41e5038b302bc44 (patch) | |
tree | 8bbb4d90285a181c603c117de4504e73066afe48 /firmware/microblaze/lib/printf.c.smaller | |
parent | e2044e13ec4ad94e9739402257134abd92cf1521 (diff) | |
download | uhd-d088a11bf7c257ba45bf0c37a41e5038b302bc44.tar.gz uhd-d088a11bf7c257ba45bf0c37a41e5038b302bc44.tar.bz2 uhd-d088a11bf7c257ba45bf0c37a41e5038b302bc44.zip |
Copied a snapshot of the usrp2 firmware into the microblaze firmware directory in the uhd repo.
Added erllc copyrights to the files created and modified at erllc.
Diffstat (limited to 'firmware/microblaze/lib/printf.c.smaller')
-rw-r--r-- | firmware/microblaze/lib/printf.c.smaller | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/firmware/microblaze/lib/printf.c.smaller b/firmware/microblaze/lib/printf.c.smaller new file mode 100644 index 000000000..4d858648d --- /dev/null +++ b/firmware/microblaze/lib/printf.c.smaller @@ -0,0 +1,134 @@ +/* -*- c -*- */ +/* + * Copyright 2007 Free Software Foundation, Inc. + * + * 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 Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* + * Based on code from the SDCC z80 library ;) + */ + +#include <stdarg.h> +#include <stdio.h> +#include <hal_io.h> /* FIXME refactor into stdio */ + +#define PUTCHAR(x) hal_putc(x) + + +static void +_printn(unsigned u, unsigned base, char issigned) +{ + const char *_hex = "0123456789ABCDEF"; + if (issigned && ((int)u < 0)) { + PUTCHAR('-'); + u = (unsigned)-((int)u); + } + if (u >= base) + _printn(u/base, base, 0); + PUTCHAR(_hex[u%base]); +} + +static void +_printf(const char *format, va_list va) +{ + while (*format) { + if (*format != '%') + PUTCHAR(*format); + else { + switch (*++format) { + case 0: /* hit end of format string */ + return; + case 'c': + { + char c = (char)va_arg(va, int); + PUTCHAR(c); + break; + } + case 'u': + { + unsigned u = va_arg(va, unsigned); + _printn(u, 10, 0); + break; + } + case 'd': + { + unsigned u = va_arg(va, unsigned); + _printn(u, 10, 1); + break; + } + case 'x': + case 'p': + { + unsigned u = va_arg(va, unsigned); + _printn(u, 16, 0); + break; + } + case 's': + { + char *s = va_arg(va, char *); + while (*s) { + PUTCHAR(*s); + s++; + } + break; + } + } + } + format++; + } +} + +#if 0 +static void +_char_emitter(char c, void *pData __attribute__((unused))) +{ + hal_putc(c); +} +#endif + +int +printf(const char *format, ...) +{ + va_list va; + va_start(va, format); + + _printf(format, va); + + // wrong return value... + return 0; +} + + +#if 0 + +// Totally dangerous. Don't use +static void +_buf_emitter(char c, void *pData) +{ + *((*((char **)pData)))++ = c; +} + +int sprintf(char *pInto, const char *format, ...) +{ + va_list va; + va_start(va, format); + + _printf(format, _buf_emitter, &pInto, va); + *pInto++ = '\0'; + + // FIXME wrong return value + return 0; +} +#endif |