GarbAGE (Garbage Accurate GameBoy Emulator)
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/*
* Copyright (C) 2022 Riyyi
*
* SPDX-License-Identifier: MIT
*/
#include "cpu.h"
#include "macro.h"
#include "testcase.h"
#include "testsuite.h"
struct CPUTest {
CPU cpu { 0 };
bool isCarry(uint32_t lhs, uint32_t rhs, uint32_t limit_bit) { return cpu.isCarry(lhs, rhs, limit_bit); }
};
// -----------------------------------------
TEST_CASE(CPUIsCarry)
{
CPUTest test;
// 8-bit Half-carry false
EXPECT_EQ(test.isCarry(56, 17, 0x10), false);
EXPECT_EQ(test.isCarry(16, -1, 0x10), false);
EXPECT_EQ(test.isCarry(32, -1, 0x10), false);
EXPECT_EQ(test.isCarry(144, -1, 0x10), false);
EXPECT_EQ(test.isCarry(211, -20, 0x10), false);
// 8-bit Half-carry true
EXPECT_EQ(test.isCarry(46, 34, 0x10), true);
EXPECT_EQ(test.isCarry(62, 34, 0x10), true);
EXPECT_EQ(test.isCarry(136, -1, 0x10), true);
EXPECT_EQ(test.isCarry(219, -20, 0x10), true);
EXPECT_EQ(test.isCarry(250, -20, 0x10), true);
// 8-bit Full carry false
EXPECT_EQ(test.isCarry(254, 1, 0x100), false);
// 8-bit Full carry true
EXPECT_EQ(test.isCarry(254, 2, 0x100), true);
}