mirror of
https://github.com/dborth/snes9xgx.git
synced 2025-07-22 15:37:32 +02:00
7305f0ee6c
- compiles with latest devkitppc (r15) - now uses libfat (can use front sd slot on wii) - updated menu items a bit - wiimote support - fixed: autoload sram/freeze - fixed: rom plays immediately after loading
52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
/****************************************************************************
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* gctime.cpp
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****************************************************************************/
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#include "gctime.h"
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#define TB_CLOCK 40500000
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unsigned long tb_diff_msec(tb_t *end, tb_t *start)
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{
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unsigned long upper, lower;
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upper = end->u - start->u;
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if (start->l > end->l)
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upper--;
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lower = end->l - start->l;
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return ((upper*((unsigned long)0x80000000/(TB_CLOCK/2000))) + (lower/(TB_CLOCK/1000)));
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}
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unsigned long tb_diff_usec(tb_t *end, tb_t *start)
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{
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unsigned long upper, lower;
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upper = end->u - start->u;
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if (start->l > end->l)
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upper--;
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lower = end->l - start->l;
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return ((upper*((unsigned long)0x80000000/(TB_CLOCK/2000000))) + (lower/(TB_CLOCK/1000000)));
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}
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void udelay(unsigned int us)
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{
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tb_t start, end;
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mftb(&start);
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while (1)
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{
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mftb(&end);
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if (tb_diff_usec(&end, &start) >= us)
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break;
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}
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}
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void mdelay(unsigned int ms)
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{
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tb_t start, end;
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mftb(&start);
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while (1)
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{
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mftb(&end);
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if (tb_diff_msec(&end, &start) >= ms)
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break;
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}
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}
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