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integer: Basic UQSUB8 test

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This commit is contained in:
Lioncash 2014-12-13 23:04:25 -05:00
parent 9b5afd3ec5
commit 4a2fb659e3
1 changed files with 20 additions and 0 deletions
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20
source/tests/cpu/integer.cpp
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@ -108,6 +108,25 @@ static bool Ssax() {
return (output == 262209534);
}
// UQSUB8
static bool Uqsub8() {
unsigned int output;
unsigned int rm = 70;
unsigned int rn = 50;
// Regular subtraction
asm volatile ("UQSUB8 %[out], %[Rm], %[Rn]" : [out] "=r"(output) : [Rm] "r"(rm), [Rn] "r"(rn));
SoftAssert(output != 20);
// Floor subtraction (50 - 70) == 0 with UQSUB8 (or any of the other UQSUB variants).
rm = 50;
rn = 70;
asm volatile ("UQSUB8 %[out], %[Rm], %[Rn]" : [out] "=r"(output) : [Rm] "r"(rm), [Rn] "r"(rn));
SoftAssert(output != 0);
return true;
}
void TestAll() {
const std::string tag = "Integer";
@ -116,6 +135,7 @@ void TestAll() {
Test(tag, "MUL", Mul(), true);
Test(tag, "SASX", Sasx(), true);
Test(tag, "SSAX", Ssax(), true);
Test(tag, "UQSUB8", Uqsub8(), true);
}
}