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Merge pull request #14 from lioncash/ops

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Add CPU tests for USAD8 and USADA8.
This commit is contained in:
bunnei 2014-12-17 18:44:05 -05:00
commit 37c9e7197d
1 changed files with 43 additions and 0 deletions
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43
source/tests/cpu/integer.cpp
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@ -127,6 +127,46 @@ static bool Uqsub8() {
return true;
}
// USAD8
static bool Usad8() {
unsigned int output;
unsigned int rm = 50;
unsigned int rn = 10;
// Regular subtraction
asm volatile ("USAD8 %[out], %[Rm], %[Rn]" : [out] "=r"(output) : [Rm] "r"(rm), [Rn] "r"(rn));
SoftAssert(output == 40);
// Absolute value subtraction (0 - 1) == 1 with USAD8. UCHAR_MAX rollover does not occur.
rm = 0;
rn = 1;
asm volatile ("USAD8 %[out], %[Rm], %[Rn]" : [out] "=r"(output) : [Rm] "r"(rm), [Rn] "r"(rn));
SoftAssert(output == 1);
return true;
}
// USADA8
static bool Usada8() {
unsigned int output;
unsigned int rm = 50;
unsigned int rn = 10;
unsigned int ra = 1;
// Regular subtraction with accumulator add: abs(50 - 10) + 1
asm volatile ("USADA8 %[out], %[Rm], %[Rn], %[Ra]" : [out] "=r"(output) : [Rm] "r"(rm), [Rn] "r"(rn), [Ra] "r"(ra));
SoftAssert(output == 41);
// Absolute value subtraction with accumulator add: abs(0 - 1) + 9
rm = 0;
rn = 1;
ra = 9;
asm volatile ("USADA8 %[out], %[Rm], %[Rn], %[Ra]" : [out] "=r"(output) : [Rm] "r"(rm), [Rn] "r"(rn), [Ra] "r"(ra));
SoftAssert(output == 10);
return true;
}
// UXTAB16
static bool Uxtab16() {
unsigned int output;
@ -179,6 +219,7 @@ static bool Uxtb16() {
return true;
}
void TestAll() {
const std::string tag = "Integer";
@ -188,6 +229,8 @@ void TestAll() {
Test(tag, "SASX", Sasx(), true);
Test(tag, "SSAX", Ssax(), true);
Test(tag, "UQSUB8", Uqsub8(), true);
Test(tag, "USAD8", Usad8(), true);
Test(tag, "USADA8", Usada8(), true);
Test(tag, "UXTAB16", Uxtab16(), true);
Test(tag, "UXTB16", Uxtb16(), true);
}