diff options
Diffstat (limited to 'qemu/roms/qemu-palcode/printf.c')
| -rw-r--r-- | qemu/roms/qemu-palcode/printf.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/qemu/roms/qemu-palcode/printf.c b/qemu/roms/qemu-palcode/printf.c deleted file mode 100644 index 469b82cd3..000000000 --- a/qemu/roms/qemu-palcode/printf.c +++ /dev/null @@ -1,203 +0,0 @@ -/* A reduced version of the printf function. - - Copyright (C) 2011 Richard Henderson - - This file is part of QEMU PALcode. - - 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 2 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 text - of the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. If not see - <http://www.gnu.org/licenses/>. */ - -#include <stdarg.h> -#include <stdbool.h> -#include <string.h> -#include "console.h" - -static int print_buf_pad(char *buf, int buflen, char *p, int width, int pad) -{ - int len = buf + buflen - p; - int r = 0; - - if (width > len) - { - *--p = pad; - len++; - - while (width > buflen) - { - crb_puts(0, p, 1); - width--; - r++; - } - while (width > len) - *--p = pad, len++; - } - - crb_puts(0, p, len); - return r + len; -} - -static int print_decimal(unsigned long val, int width, int pad) -{ - char buf[32]; - char *p = buf + sizeof(buf); - - if (val == 0) - *--p = '0'; - else - { - do - { - unsigned long d, r; - - /* Compiling with -Os results in a call to the division routine. - Do what the compiler ought to have done. */ - d = __builtin_alpha_umulh(val, 0xcccccccccccccccd); - d >>= 3; - r = val - (d * 10); - - *--p = r + '0'; - val = d; - } - while (val); - } - - return print_buf_pad(buf, sizeof(buf), p, width, pad); -} - -static int print_hex(unsigned long val, int width, char pad) -{ - char buf[32]; - char *p = buf + sizeof(buf); - - if (val == 0) - *--p = '0'; - else - { - do - { - int d = val % 16; - *--p = (d < 10 ? '0' : 'a' - 10) + d; - val /= 16; - } - while (val); - } - - return print_buf_pad(buf, sizeof(buf), p, width, pad); -} - -int printf(const char *fmt, ...) -{ - va_list args; - unsigned long val; - int r = 0; - - va_start(args, fmt); - - for (; *fmt ; fmt++) - if (*fmt != '%') - { - crb_puts(0, fmt, 1); - r++; - } - else - { - const char *percent = fmt; - bool is_long = false; - char pad = ' '; - int width = 0; - - restart: - switch (*++fmt) - { - case '%': - crb_puts(0, "%", 1); - r++; - break; - - case 'l': - is_long = true; - goto restart; - - case 'd': - if (is_long) - { - long d = va_arg (args, long); - if (d < 0) - { - crb_puts(0, "-", 1); - d = -d; - } - val = d; - } - else - { - int d = va_arg (args, int); - if (d < 0) - { - crb_puts(0, "-", 1); - d = -d; - r++; - } - val = d; - } - goto do_unsigned; - - case 'u': - if (is_long) - val = va_arg (args, unsigned long); - else - val = va_arg (args, unsigned int); - - do_unsigned: - r += print_decimal (val, width, pad); - break; - - case 'x': - if (is_long) - val = va_arg (args, unsigned long); - else - val = va_arg (args, unsigned int); - r += print_hex (val, width, pad); - break; - - case 's': - { - const char *s = va_arg (args, const char *); - int len = strlen(s); - crb_puts(0, s, len); - r += len; - } - break; - - case '0': - pad = '0'; - case '1' ... '9': - width = *fmt - '0'; - while (fmt[1] >= '0' && fmt[1] <= '9') - width = width * 10 + *++fmt - '0'; - goto restart; - - default: - { - int len = fmt - percent; - crb_puts(0, percent, len); - r += len; - } - break; - } - } - - va_end(args); - return r; -} |