mirror of
https://github.com/ksherlock/mpw.git
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95 lines
1.6 KiB
C++
95 lines
1.6 KiB
C++
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#include "mpw_time.h"
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#include "toolbox.h"
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#include <cpu/defs.h>
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#include <cpu/CpuModule.h>
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#include <cpu/fmem.h>
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namespace {
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const long EpochAdjust = 86400 * (365 * (1970 - 1904) + 17); // 17 leap years.
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}
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namespace Time
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{
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time_t UnixToMac(time_t t)
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{
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return t + EpochAdjust;
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}
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time_t MacToUnix(time_t t)
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{
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return t - EpochAdjust;
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}
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uint16_t ReadDateTime(uint16_t trap)
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{
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/*
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* on entry:
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* A0 Pointer to long word secs
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*
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* on exit:
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* A0 pointer to long word secs
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* D0 Result code
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*
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*/
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time_t now;
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uint32_t secsPtr = cpuGetAReg(0);
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fprintf(stderr, "%04x ReadDateTime(%08x)\n", trap, secsPtr);
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now = ::time(NULL);
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now = UnixToMac(now);
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if (secsPtr) memoryWriteLong(now, secsPtr);
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// also set global variable Time.
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memoryWriteLong(now, 0x020c);
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return 0;
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}
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uint16_t SecondsToDate(uint16_t trap)
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{
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/*
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* on entry:
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* D0 Seconds since midnight, January 1, 1904
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* A0 pointer to date-time record
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*
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* on exit:
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* D0 Result code
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*
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*/
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uint32_t s = cpuGetDReg(0);
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uint32_t dtPtr = cpuGetAReg(0);
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fprintf(stderr, "%04x SecondsToDate(%08x, %08x)\n", trap, s, dtPtr);
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if (dtPtr)
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{
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struct tm *tm;
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time_t t;
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t = MacToUnix(s);
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tm = ::localtime(&t);
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memoryWriteWord(tm->tm_year + 1900, dtPtr + 0);
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memoryWriteWord(tm->tm_mon + 1, dtPtr + 2);
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memoryWriteWord(tm->tm_mday, dtPtr + 4);
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memoryWriteWord(tm->tm_hour, dtPtr + 6);
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memoryWriteWord(tm->tm_min, dtPtr + 8);
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memoryWriteWord(tm->tm_sec, dtPtr + 10);
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memoryWriteWord(tm->tm_wday + 1, dtPtr + 12);
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}
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return 0;
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}
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} |