telodendria/Cytoplasm/tools/uint64.c

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C
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#include <UInt64.h>
#include <Log.h>
/* AssertEquals(actual, expected) */
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int
AssertEquals(char *msg, UInt64 x, UInt64 y)
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{
if (!UInt64Eq(x, y))
{
Log(LOG_ERR, "%s: Expected 0x%X 0x%X, got 0x%X 0x%X", msg,
UInt64High(y), UInt64Low(y),
UInt64High(x), UInt64Low(x));
return 0;
}
return 1;
}
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int
Main(void)
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{
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UInt64 x, y;
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Log(LOG_INFO, "sizeof(UInt64) = %lu", sizeof(UInt64));
#ifdef UINT64_NATIVE
Log(LOG_INFO, "Using native 64-bit integers.");
#else
Log(LOG_INFO, "Using emulated 64-bit integers.");
#endif
/* BSR Tests */
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x = UInt64Create(0x000000FF, 0x00000000);
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y = UInt64Srl(x, 4);
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AssertEquals("x >> 4", y, UInt64Create(0x0000000F, 0xF0000000));
y = UInt64Srl(x, 8);
AssertEquals("x >> 8", y, UInt64Create(0x00000000, 0xFF000000));
y = UInt64Srl(x, 36);
AssertEquals("x >> 36", y, UInt64Create(0x00000000, 0x0000000F));
/* BSL Tests */
x = UInt64Create(0x00000000, 0xFF000000);
y = UInt64Sll(x, 4);
AssertEquals("x << 4", y, UInt64Create(0x0000000F, 0xF0000000));
y = UInt64Sll(x, 8);
AssertEquals("x << 8", y, UInt64Create(0x000000FF, 0x00000000));
y = UInt64Sll(x, 36);
AssertEquals("x << 36", y, UInt64Create(0xF0000000, 0x00000000));
/* ADD Tests */
x = UInt64Create(0x00000000, 0xF0000001);
y = UInt64Create(0x00000000, 0x00000002);
AssertEquals("0xF0000001 + 0x00000002", UInt64Add(x, y), UInt64Create(0x00000000, 0xF0000003));
x = UInt64Create(0x00000000, 0xF0000000);
y = UInt64Create(0x00000000, 0x10000000);
AssertEquals("0xF0000000 + 0x10000000", UInt64Add(x, y), UInt64Create(0x00000001, 0x00000000));
/* SUB Tests */
x = UInt64Create(0x00000000, 0x00000005);
y = UInt64Create(0x00000000, 0x00000002);
AssertEquals("0x00000005 - 0x00000002", UInt64Sub(x, y), UInt64Create(0x00000000, 0x00000003));
x = UInt64Create(0x00000001, 0x00000000);
y = UInt64Create(0x00000000, 0x00000001);
AssertEquals("0x00000001 0x00000000 - 0x00000001", UInt64Sub(x, y), UInt64Create(0x00000000, 0xFFFFFFFF));
/* MUL Tests */
x = UInt64Create(0, 18);
y = UInt64Create(0, 1);
AssertEquals("18 * 1", UInt64Mul(x, y), UInt64Create(0, 18));
x = UInt64Create(0, 20);
y = UInt64Create(0, 12);
AssertEquals("20 * 12", UInt64Mul(x, y), UInt64Create(0, 240));
x = UInt64Create(0x00000000, 0x00000005);
y = UInt64Create(0x00000000, 0x00000005);
AssertEquals("0x00000005 * 0x00000005", UInt64Mul(x, y), UInt64Create(0x00000000, 0x00000019));
x = UInt64Create(0x00000001, 0x00000000);
y = UInt64Create(0x00000000, 0x00000005);
AssertEquals("0x00000001 0x00000000 * 0x00000005", UInt64Mul(x, y), UInt64Create(0x00000005, 0x00000000));
/* DIV Tests */
x = UInt64Create(0, 12);
y = UInt64Create(0, 4);
AssertEquals("12 / 4", UInt64Div(x, y), UInt64Create(0, 3));
/* MOD Tests */
x = UInt64Create(0x000000FF, 0x00000000);
y = UInt64Create(0x00000000, 0x00000010);
AssertEquals("0x000000FF 0x00000000 mod 0x00000010", UInt64Rem(x, y), UInt64Create(0, 0));
x = UInt64Create(0x00000000, 0xFF000000);
y = UInt64Create(0x00000000, 0x00000010);
AssertEquals("0x00000000 0xFF000000 mod 0x00000010", UInt64Rem(x, y), UInt64Create(0, 0));
x = UInt64Create(0xFF000000, 0x00000000);
y = UInt64Create(0x00000000, 0x00000010);
AssertEquals("0xFF000000 0x00000000 mod 0x00000010", UInt64Rem(x, y), UInt64Create(0, 0));
x = UInt64Create(0x00000000, 0x000000F0);
y = UInt64Create(0x00000000, 0x00000010);
AssertEquals("0x00000000 0x000000F0 mod 0x00000010", UInt64Rem(x, y), UInt64Create(0, 0));
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return 0;
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}