Amos Kittens A new Amos interpreter for AmigaOS4.1
Typical way to run Amos under AmigaOS4.1 is by lots and lots onion layers.
Amos kittens removes two layers, hardware emulation and Classic AmigaDOS/Workbench.
And adds a new layer called RetroMode.library, that only simulates graphic but not exactly, first of all It's chunky not planar, it does not support dual playfields. Everything else should for the most part work similar.
You notice that Amos games now have closer access to AmigaOS4.1, this opens up a lot of opportunities, that we did not have when we were boxed into EUAE, USB support, AHI Support, long filename support, large disk support and all new stuff, that AmigaOS4.1 have, that AmigaOS3.x do not have.
The access from Amos game to AmigaOS is limited by only having access to old JMP tables, and only being able to execute 680x0 code, the AmigaOS4.1 hardware ranges from hardware that have Paula/Denice and hardware that don't, so it is extremely degrees to try to access hardware.
This is way the lines are dotted.Written small table to compare Amos Pro vs Amos kittens,
Amos Pro |
Amos Kittens |
XAMOS |
|
| Amos Pro | Amos Kittens | XAMOS | |
| Colors | Planar 1bit to 6bit (64 color) / HAM6 (4096) | Chunky 8bit (256 colors/RGB 4096), (future support for 32bit) | True Color (32bit) |
| Fonts | Bitmap fonts | Bitmaps fonts + Bullet fonts | True type |
| Filesystem | 32 chars filenames | now 32 chars, (128 chars in the future) | N/A |
| Dula Playfields | Yes | No | N/A |
| Load iff/Save Iff | loads iff files. | Use datatypes loads any picture | N/A |
| JoyPorts | 2 x Game ports (planned support for cd32 gamepads) | Amiga Input (USB gamepads) same commands | N/A |
| Color Flash | yes | yes | N/A |
| Color cycle | yes | yes | N/A |
| Rainbow effects | yes | yes | N/A |
| Graphics | OCS | RetroMode.library | N/A |
| Assembler 680x0 | yes | 680x0 (using Exec.library/EmulateTags) | No |
| Assembler PowerPC | no | (maybe in the future) | No |
| Bobs/Sprite | software bobs/hardware sprites | software spries and bobs | N/A |
| Source code format | Tokens (execute orginal source code) | Tokens (execute orginal source code) | ASCII (Not compatible syntax) |
| Extensions 68K | yes (680x0 assembler, hunk format) | Not initially (Some help appreciated) | N/A |
| Extensions PPC | no | In the future ".library" format (C lanuage) | N/A |
| File size | 32bit / 2 Gbyte | 32bit (64bit in the future) | N/A |
| Audio | Paula 8bit | AHI 16bit sterro (software mixed 4 channels 8bit) | N/A |
| Max screen resolution | Hires / interlaced (640x512) | Standard P640x512 - Can be hacked up HD resolutions. | N/A |
| Fullscreen | yes | yes | N/A |
| Window mode | no | yes | N/A |
| iconify | no | yes should be possible | N/A |
| workbench mode | no | maybe in the future | N/A |
| CrossDOS | yes | no, whats the point? | N/A |
| Serial port | yes | no, use SER: device | N/A |
| decimal precision | float | read floats, math is done in doubles | N/A |
| max string length | 65535 | 4 Giga bytes of chars | N/A |
| ABK support | yes | yes | N/A |
| 3D | Software 3D | No, Future maybe Warp3D Nova. | N/A |
| "To" Command | Commands that use TO, the TO command most be used | No requirement (you should use "To" to write compatible code) | N/A |