accelerator_memory

The option documentation is properly formatted yet

Summary: "Accelerator RAM" Type: Choice

Value: 0 (0 MB) Value: 1024 (1 MB) Value: 2048 (2 MB) Value: 4096 (4 MB) Value: 8192 (8 MB) Value: 16384 (16 MB) Value: 32768 (32 MB) Value: 65536 (64 MB) Value: 131072 (128 MB) Value: 262144 (256 MB)

The 0 MB option is not really valid, but exists for user interface reasons in FS-UAE Launcher.

Code:

if c.accelerator_memory.explicit:
    value = c.accelerator_memory.explicit
elif c.accelerator == "":
    value = "0"
elif f.matches(c.accelerator, "blizzard-1230-iv"):
    value = str(32 * 1024)
elif f.matches(c.accelerator, "blizzard-1240"):
    value = str(32 * 1024)
elif f.matches(c.accelerator, "blizzard-1260"):
    value = str(32 * 1024)
elif f.matches(c.accelerator, "blizzard-ppc"):
    value = str(256 * 1024)
elif f.matches(c.accelerator, "cyberstorm-ppc"):
    value = str(128 * 1024)
elif f.matches(c.accelerator, "0"):
    value = str(0 * 1024)
else:
    f.warning("accelerator_memory")
    value = "0"

Source: https://github.com/FrodeSolheim/fs-uae/blob/master/docs/options/accelerator_memory