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Add tests for BHI BLE on the 6809

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Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon 2018-11-10 20:48:43 +00:00
parent b926f4b7f1
commit f29c571226
1 changed files with 94 additions and 0 deletions
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94
MC6809/unittest/mc6809_tests.cpp
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@ -891,3 +891,97 @@ TEST_CASE(" Branch if Greater Than Zero", "[BGT]") {
REQUIRE(cpu.A() == 1);
}
}
TEST_CASE(" Branch if Higher", "[BHI]") {
Board board;
board.initialise();
auto& cpu = board.CPU();
cpu.step(); // Step over the reset
board.poke(0, 0x22); // BHI
board.poke(1, 0x03);
board.poke(2, 0x86); // LDA #1
board.poke(3, 0x01);
board.poke(4, 0x12); // NOP
board.poke(5, 0x86); // LDA #2
board.poke(6, 0x02);
board.poke(7, 0x12); // NOP
SECTION("BHI1") {
cpu.A() = 0;
cpu.CC() = EightBit::mc6809::ZF;
cpu.step();
cpu.step();
REQUIRE(cpu.A() == 1);
}
}
TEST_CASE("Branch on Less than or Equal to Zero", "[BLE]") {
Board board;
board.initialise();
auto& cpu = board.CPU();
cpu.step(); // Step over the reset
board.poke(0, 0x2f); // BLE
board.poke(1, 0x03);
board.poke(2, 0x86); // LDA #1
board.poke(3, 0x01);
board.poke(4, 0x12); // NOP
board.poke(5, 0x86); // LDA #2
board.poke(6, 0x02);
board.poke(7, 0x12); // NOP
SECTION("BLE1") {
cpu.A() = 0;
cpu.CC() = EightBit::mc6809::ZF;
cpu.step();
cpu.step();
REQUIRE(cpu.A() == 2);
}
cpu.reset();
cpu.step();
SECTION("BLE2") {
cpu.A() = 0;
cpu.CC() = 0;
cpu.step();
cpu.step();
REQUIRE(cpu.A() == 1);
}
cpu.reset();
cpu.step();
SECTION("BLE3") {
cpu.A() = 0;
cpu.CC() = EightBit::mc6809::NF;
cpu.step();
cpu.step();
REQUIRE(cpu.A() == 2);
}
cpu.reset();
cpu.step();
SECTION("BLE4") {
cpu.A() = 0;
cpu.CC() = EightBit::mc6809::NF | EightBit::mc6809::VF;
cpu.step();
cpu.step();
REQUIRE(cpu.A() == 1);
}
cpu.reset();
cpu.step();
SECTION("BLE5") {
cpu.A() = 0;
cpu.CC() = EightBit::mc6809::ZF | EightBit::mc6809::NF;
cpu.step();
cpu.step();
REQUIRE(cpu.A() == 2);
}
}