Getting Started

Getting Started#

Obtaining#

The recommended way to download Moira is by cloning the project directly from GitHub.

git clone https://github.com/dirkwhoffmann/Moira.git
cd Moira

Older versions are available at Moira’s release page.

Configuring#

All compile-time options are configured in a single file called MoiraConfig.h. For this tutorial, there is no need to change the default settings. However, you may want to take a look inside the file to get an overview of the available options.

cat Moira/MoiraConfig.h

All available options are explained in detail in a separate section.

Compiling#

The easiest way to compile Moira is with CMake. Simply create a build directory, invoke CMake to set up the build chain, and then run make:

mkdir build
cd build
cmake ..
make

Running#

If built as explained above, an application called testRunner is created. This application iterates over all opcodes, runs Moira and Musashi in parallel, and compares the results. If everything works as expected, it will terminate after a few minutes. If a discrepancy is detected, an error report is generated. In such cases, please file a bug on GitHub. Any help in identifying and resolving remaining issues is greatly appreciated.

Moira CPU tester. (C) Dirk W. Hoffmann, 2019 - 2025

The test program runs Moira agains Musashi with randomly generated data.

    Test rounds : 1
    Random seed : 2084
     Exec range : (opcode >= 0x0000 && opcode <= 0xEFFF)
     Dasm range : (opcode >= 0x0000 && opcode <= 0xFFFF)

Round 1:

68000 CPU ................................ PASSED  (Moira: 0.50s  Musashi: 0.67s)
68010 CPU ................................ PASSED  (Moira: 1.00s  Musashi: 1.34s)
EC020 CPU ................................ PASSED  (Moira: 1.53s  Musashi: 2.03s)
68020 CPU ................................ PASSED  (Moira: 2.05s  Musashi: 2.73s)
EC030 CPU ................................ PASSED  (Moira: 2.59s  Musashi: 3.43s)
68030 CPU ................................ PASSED  (Moira: 3.17s  Musashi: 4.17s)
68030 MMU ................................ PASSED  (Moira: 3.17s  Musashi: 4.17s)
EC040 CPU ................................ PASSED  (Moira: 3.69s  Musashi: 4.86s)
LC040 CPU ................................ PASSED  (Moira: 4.21s  Musashi: 5.54s)
LC040 MMU ................................ PASSED  (Moira: 4.21s  Musashi: 5.54s)
68040 CPU ................................ PASSED  (Moira: 4.75s  Musashi: 6.25s)
68040 MMU ................................ PASSED  (Moira: 4.75s  Musashi: 6.25s)
68040 FPU ................................ PASSED  (Moira: 4.75s  Musashi: 6.25s)

All tests completed

Please note that not all test rounds execute instructions. This only occurs in the first four rounds when emulating a 68000, 68010, 68EC020, or 68020. For all other CPU models, only the disassembler is invoked.

Contents