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dirom: Document the interface evalution [O. Galibert]

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Olivier Galibert 2016-11-28 19:16:39 +01:00
parent 4c0de7982e
commit 0136468462
1 changed files with 9 additions and 3 deletions
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docs/source/techspecs/device_rom_interface.rst
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@ -28,11 +28,17 @@ Use that method at machine config time to provide an address map for
the bus to connect to. It has priority over a rom region if one is
also present.
| **MCFG_DEVICE_ROM**\ (tag)
Used to select a rom region to use if a device address map is not
given. Defaults to DEVICE_SELF, e.g. the device tag.
| **ROM_REGION**\ (length, tag, flags)
If a rom region with a tag identical to the device tag is provided in
the rom description for the system, it will be automatically picked up
as the connected rom. An address map has priority over the region if
If a rom region with a tag as given with **MCFG_DEVICE_ROM** if
present, or identical to the device tag otherwise, is provided in the
rom description for the system, it will be automatically picked up as
the connected rom. An address map has priority over the region if
present in the machine config.
| void **set_rom**\ (const void \*base, UINT32 size);