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Added lots of functions from time.h

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1507 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2002-11-12 22:06:02 +00:00
parent cae19c1a8a
commit 43d8ecd567
8 changed files with 469 additions and 0 deletions
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6
libsrc/common/.cvsignore
View file

@ -4,6 +4,7 @@ _fopen.s
_hextab.s
_scanf.s
abort.s
asctime.s
bsearch.s
errormsg.s
fclose.s
@ -22,7 +23,10 @@ ftell.s
fwrite.s
getchar.s
gets.s
gmtime.s
locale.s
localtime.s
mktime.s
perror.s
putchar.s
puts.s
@ -30,7 +34,9 @@ qsort.s
realloc.s
rewind.s
sscanf.s
strftime.s
strtok.s
strxfrm.s
timezone.s
vprintf.s
vsscanf.s

6
libsrc/common/Makefile
View file

@ -16,6 +16,7 @@ C_OBJS = _afailed.o \
_hextab.o \
_scanf.o \
abort.o \
asctime.o \
bsearch.o \
errormsg.o \
fclose.o \
@ -34,7 +35,10 @@ C_OBJS = _afailed.o \
fwrite.o \
getchar.o \
gets.o \
gmtime.o \
locale.o \
localtime.o \
mktime.o \
perror.o \
putchar.o \
puts.o \
@ -44,6 +48,7 @@ C_OBJS = _afailed.o \
sscanf.o \
strxfrm.o \
strtok.o \
timezone.o \
vprintf.o \
vsscanf.o
@ -62,6 +67,7 @@ S_OBJS = _fdesc.o \
calloc.o \
copydata.o \
cprintf.o \
ctime.o \
divt.o \
errno.o \
fmisc.o \

73
libsrc/common/asctime.c Normal file
View file

@ -0,0 +1,73 @@
/*****************************************************************************/
/* */
/* asctime.c */
/* */
/* Convert a broken down time into a string */
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <stdio.h>
#include <time.h>
char* __fastcall__ asctime (const struct tm* timep)
{
static const char days[7][4] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};
static const char months[12][4] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
static char buf[26];
/* Create a copy of the given data and make sure it is valid */
struct tm t;
t = *timep;
mktime (&t);
/* Format into given buffer */
sprintf(buf,
"%s %s%3d %02d:%02d:%02d %d\n",
days[t.tm_wday],
months[t.tm_mon],
t.tm_mday,
t.tm_hour,
t.tm_min,
t.tm_sec,
t.tm_year + 1900);
/* Return the result */
return buf;
}

19
libsrc/common/ctime.s Normal file
View file

@ -0,0 +1,19 @@
;
; Ullrich von Bassewitz, 12.11.2002
;
; char* __fastcall__ ctime (time_t* timep);
;
.export _ctime
.import _localtime, _asctime
.proc _ctime
; return asctime (localtime (timep));
jsr _localtime
jmp _asctime
.endproc

57
libsrc/common/gmtime.c Normal file
View file

@ -0,0 +1,57 @@
/*****************************************************************************/
/* */
/* gmtime.c */
/* */
/* Convert calendar time into broken down time in UTC */
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <time.h>
struct tm* __fastcall__ gmtime (const time_t* timep)
{
time_t t;
/* Check for a valid time spec */
if (timep == 0) {
return 0;
}
/* Get the time and correct for the time zone offset */
t = *timep + _tz.timezone;
/* Use localtime for conversion */
return localtime (&t);
}

69
libsrc/common/localtime.c Normal file
View file

@ -0,0 +1,69 @@
/*****************************************************************************/
/* */
/* localtime.c */
/* */
/* Convert calendar time into broken down local time */
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <time.h>
struct tm* __fastcall__ localtime (const time_t* timep)
{
static struct tm timebuf;
time_t t;
/* Check the argument */
if (timep == 0 || (long) (t = *timep) < 0) {
/* Invalid arg */
return 0;
}
/* Since our ints are just 16 bits, split the given time into seconds,
* hours and days. Each of the values will fit in a 16 bit variable.
* The mktime routine will then do the rest.
*/
timebuf.tm_sec = t % 3600;
timebuf.tm_min = 0;
timebuf.tm_hour = (t / 3600) % 24;
timebuf.tm_mday = (t / (3600UL * 24UL)) + 1;
timebuf.tm_mon = 0;
timebuf.tm_year = 70; /* Base value is 1/1/1970 */
/* Call mktime to do the final conversion */
mktime (&timebuf);
/* Return the result */
return &timebuf;
}

191
libsrc/common/mktime.c Normal file
View file

@ -0,0 +1,191 @@
/*****************************************************************************/
/* */
/* mktime.c */
/* */
/* Make calendar time from broken down time and cleanup */
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <limits.h>
#include <stdlib.h>
#include <time.h>
/*****************************************************************************/
/* Data */
/*****************************************************************************/
#define JANUARY 0
#define FEBRUARY 1
#define DECEMBER 11
#define JAN_1_1970 4 /* 1/1/1970 is a thursday */
static const unsigned char MonthLength [] = {
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
static const unsigned MonthDays [] = {
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static unsigned char IsLeapYear (int Year)
/* Returns 1 if the given year is a leap year */
{
return (((Year % 4) == 0) && ((Year % 100) != 0 || (Year % 400) == 0));
}
time_t __fastcall__ mktime (struct tm* TM)
/* Make a time in seconds since 1/1/1970 from the broken down time in TM.
* A call to mktime does also correct the time in TM to contain correct
* values.
*/
{
div_t D;
int Max;
unsigned DayCount;
/* Check if TM is valid */
if (TM == 0) {
/* Invalid data */
goto Error;
}
/* Adjust seconds. */
D = div (TM->tm_sec, 60);
TM->tm_sec = D.rem;
/* Adjust minutes */
if (TM->tm_min + D.quot < 0) {
goto Error;
}
TM->tm_min += D.quot;
D = div (TM->tm_min, 60);
TM->tm_min = D.rem;
/* Adjust hours */
if (TM->tm_hour + D.quot < 0) {
goto Error;
}
TM->tm_hour += D.quot;
D = div (TM->tm_hour, 24);
TM->tm_hour = D.rem;
/* Adjust days */
if (TM->tm_mday + D.quot < 0) {
goto Error;
}
TM->tm_mday += D.quot;
/* Adjust month and year. This is an iterative process, since changing
* the month will change the allowed days for this month.
*/
while (1) {
/* Make sure, month is in the range 0..11 */
D = div (TM->tm_mon, 12);
TM->tm_mon = D.rem;
if (TM->tm_year + D.quot < 0) {
goto Error;
}
TM->tm_year += D.quot;
/* Now check if mday is in the correct range, if not, correct month
* and eventually year and repeat the process.
*/
if (TM->tm_mon == FEBRUARY && IsLeapYear (TM->tm_year + 1900)) {
Max = 29;
} else {
Max = MonthLength[TM->tm_mon];
}
if (TM->tm_mday > Max) {
/* Must correct month and eventually, year */
if (TM->tm_mon == DECEMBER) {
TM->tm_mon = JANUARY;
++TM->tm_year;
} else {
++TM->tm_mon;
}
TM->tm_mday -= Max;
} else {
/* Done */
break;
}
}
/* Ok, all time/date fields are now correct. Calculate the days in this
* year.
*/
TM->tm_yday = MonthDays[TM->tm_mon] + TM->tm_mday - 1;
if (TM->tm_mon > FEBRUARY && IsLeapYear (TM->tm_year + 1900)) {
++TM->tm_yday;
}
/* Calculate days since 1/1/1970. In the complete epoch (1/1/1970 to
* somewhere in 2038) all years dividable by 4 are leap years, so
* dividing by 4 gives the days that must be added cause of leap years.
* (and the last leap year before 1970 was 1968)
*/
DayCount = ((unsigned) (TM->tm_year-70)) * 365U +
(((unsigned) (TM->tm_year-68-1)) / 4) +
TM->tm_yday;
/* Calculate the weekday */
TM->tm_wday = (JAN_1_1970 + DayCount) % 7;
/* No (US) daylight saving (for now) */
TM->tm_isdst = 0;
/* Return seconds since 1970 */
return DayCount * 86400UL +
((unsigned) TM->tm_hour) * 3600UL +
((unsigned) TM->tm_min) * 60U +
((unsigned) TM->tm_sec);
Error:
/* Error exit */
return (time_t) -1L;
}

48
libsrc/common/timezone.c Normal file
View file

@ -0,0 +1,48 @@
/*****************************************************************************/
/* */
/* timezone.c */
/* */
/* Timezone specification */
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <time.h>
struct _timezone _tz = {
0, /* True if daylight savings time active */
0, /* Number of seconds behind UTC */
"UTC", /* Name of timezone, e.g. CET */
"UTC" /* Name when daylight true, e.g. CEST */
};