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107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
#include "pch.h"
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#include "Board.h"
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// Using examples from 6809 Assembly Language Programming, by Lance A. Leventhal
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// Just test the basics...
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TEST_CASE("Add Accumulator B to Index Register X Unsigned", "[ABX]") {
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Board board;
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board.initialise();
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auto& cpu = board.CPU();
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cpu.step(); // Step over the reset
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SECTION("Inherent") {
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board.poke(0, 0x3a);
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cpu.B() = 0x84;
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cpu.X() = 0x1097;
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cpu.step();
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REQUIRE(cpu.X() == 0x111b);
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REQUIRE(cpu.cycles() == 3);
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}
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}
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TEST_CASE("Add Memory Plus Carry to Accumulator A", "[ADC][ADCA]") {
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Board board;
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board.initialise();
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auto& cpu = board.CPU();
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cpu.step(); // Step over the reset
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SECTION("Immediate (byte)") {
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board.poke(0, 0x89);
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board.poke(1, 0x7c);
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EightBit::Chip::setFlag(cpu.CC(), EightBit::mc6809::CF);
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cpu.A() = 0x3a;
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cpu.step();
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REQUIRE(cpu.A() == 0xb7);
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REQUIRE((cpu.CC() & EightBit::mc6809::ZF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::HF) != 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::VF) != 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::NF) != 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::CF) == 0);
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REQUIRE(cpu.cycles() == 2);
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}
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}
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TEST_CASE("Add Memory to Accumulator A", "[ADD][ADDA]") {
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Board board;
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board.initialise();
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auto& cpu = board.CPU();
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cpu.step(); // Step over the reset
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SECTION("Immediate (byte)") {
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board.poke(0, 0x8b);
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board.poke(1, 0x8b);
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cpu.A() = 0x24;
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cpu.step();
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REQUIRE(cpu.A() == 0xaf);
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REQUIRE((cpu.CC() & EightBit::mc6809::ZF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::HF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::VF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::NF) != 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::CF) == 0);
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REQUIRE(cpu.cycles() == 2);
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}
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}
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TEST_CASE("Logical AND Accumulator", "[AND][ANDA]") {
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Board board;
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board.initialise();
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auto& cpu = board.CPU();
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cpu.step(); // Step over the reset
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SECTION("Immediate (byte)") {
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board.poke(0, 0x84);
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board.poke(1, 0x13);
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cpu.A() = 0xfc;
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cpu.step();
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REQUIRE(cpu.A() == 0x10);
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REQUIRE((cpu.CC() & EightBit::mc6809::ZF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::VF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::NF) == 0);
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REQUIRE(cpu.cycles() == 2);
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}
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}
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TEST_CASE("Shift Accumulator or Memory Byte Left", "[ASL][ASLA]") {
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Board board;
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board.initialise();
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auto& cpu = board.CPU();
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cpu.step(); // Step over the reset
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SECTION("Inherent") {
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board.poke(0, 0x48);
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cpu.A() = 0x7a;
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cpu.step();
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REQUIRE(cpu.A() == 0xf4);
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REQUIRE((cpu.CC() & EightBit::mc6809::ZF) == 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::VF) != 0);
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REQUIRE((cpu.CC() & EightBit::mc6809::NF) != 0);
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REQUIRE(cpu.cycles() == 2);
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}
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}
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