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17 lines
373 B
17 lines
373 B
#include "io_internal.h" |
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#include "safemult.h" |
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void io_waituntil(tai6464 t) { |
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uint64 x,y; |
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tai6464 now,diff; |
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taia_now(&now); |
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if (taia_less(&t,&now)) |
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y=0; |
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else { |
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taia_sub(&diff,&t,&now); |
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if (!umult64(diff.sec.x,1000,&x) || (y=x+diff.nano/1000000)<x) |
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y=-1; /* overflow; wait indefinitely */ |
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if (!y && diff.nano) y=1; |
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} |
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io_waituntil2(y); |
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}
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