Failed to build

[oschijns]

I tried to build your project, but I encountered the following errors.

error: couldn't read `src/assets/megapcm.bin`: No such file or directory (os error 2)
  --> src/megapcm.rs:35:43
   |
35 |     static DRIVER_BINARY: &'static [u8] = include_bytes!("assets/megapcm.bin");
   |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: couldn't read `src/assets/bad_apple.bin`: No such file or directory (os error 2)
   --> src/sys/mod.rs:175:25
    |
175 |                 bytes: *include_bytes!($path),
    |                         ^^^^^^^^^^^^^^^^^^^^^
    |
   ::: src/ba_video.rs:37:45
    |
 37 | pub static BAD_APPLE_VIDEO: &'static [u8] = include_bytes_aligned_as!(u16, "assets/bad_apple.bin");
    |                                             ------------------------------------------------------ in this macro invocation
    |
    = note: this error originates in the macro `include_bytes` which comes from the expansion of the macro `include_bytes_aligned_as` (in Nightly builds, run with -Z macro-backtrace for more info)

error: couldn't read `src/assets/bad_apple_audio.bin`: No such file or directory (os error 2)
  --> src/ba_video.rs:38:45
   |
38 | pub static BAD_APPLE_AUDIO: &'static [u8] = include_bytes!("assets/bad_apple_audio.bin");
   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unwinding panics are not supported without std
  |
  = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
  = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem

error: invalid register class `reg_addr`: unknown register class
   --> src/sys/z80.rs:117:9
    |
117 |         src = inout(reg_addr) src => _,
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the following register classes are supported on this target: `reg`, `reg_abcd`, `reg_byte`, `xmm_reg`, `ymm_reg`, `zmm_reg`, `kreg`, `kreg0`, `mmx_reg`, `x87_reg`, `tmm_reg`

error: invalid register class `reg_addr`: unknown register class
   --> src/sys/z80.rs:118:9
    |
118 |         dst = inout(reg_addr) dst => _,
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the following register classes are supported on this target: `reg`, `reg_abcd`, `reg_byte`, `xmm_reg`, `ymm_reg`, `zmm_reg`, `kreg`, `kreg0`, `mmx_reg`, `x87_reg`, `tmm_reg`

error: invalid register class `reg_data`: unknown register class
   --> src/sys/z80.rs:119:9
    |
119 |         count = inout(reg_data) count => _,
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the following register classes are supported on this target: `reg`, `reg_abcd`, `reg_byte`, `xmm_reg`, `ymm_reg`, `zmm_reg`, `kreg`, `kreg0`, `mmx_reg`, `x87_reg`, `tmm_reg`

error: invalid register `d7`: unknown register
   --> src/sys/mod.rs:101:9
    |
101 |         out("d7") value,
    |         ^^^^^^^^^^^^^^^

error: invalid register `d7`: unknown register
   --> src/sys/mod.rs:110:9
    |
110 |         in("d7") value,
    |         ^^^^^^^^^^^^^^

error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> src/megapcm.rs:61:51
   |
61 |     let [start_hi, start_lo]: [u16; 2] = unsafe { mem::transmute(start+start) };
   |                                                   ^^^^^^^^^^^^^^
   |
   = note: source type: `usize` (64 bits)
   = note: target type: `[u16; 2]` (32 bits)

error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> src/megapcm.rs:62:47
   |
62 |     let [end_hi, end_lo]: [u16; 2] = unsafe { mem::transmute(end+end) };
   |                                               ^^^^^^^^^^^^^^
   |
   = note: source type: `usize` (64 bits)
   = note: target type: `[u16; 2]` (32 bits)

You forgot to add the assets folder to the repo.
And as you stated in the readme, inline assembly doesn't seem to work well.