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(MESS) mtx : added notes

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Robbbert 2013-09-05 09:11:06 +00:00
parent f2a651726a
commit fd256d5d1e
1 changed files with 34 additions and 0 deletions
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34
src/mess/drivers/mtx.c
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@ -450,3 +450,37 @@ ROM_END
COMP( 1983, mtx512, 0, 0, mtx512, mtx512, driver_device, 0, "Memotech Ltd", "MTX 512", 0 )
COMP( 1983, mtx500, mtx512, 0, mtx500, mtx512, driver_device, 0, "Memotech Ltd", "MTX 500", 0 )
COMP( 1984, rs128, mtx512, 0, rs128, mtx512, driver_device, 0, "Memotech Ltd", "RS 128", 0 )
/*
The following roms are available should they be considered useful:
ROM_START( mtx_roms )
ROM_LOAD( "assem.rom", CRC(599d5b6b) SHA1(3ec1f7f476a21ca3206012ded22198c020b47f7d) )
ROM_LOAD( "basic.rom", CRC(d1e9ff36) SHA1(e89ae3a627716e6cee7e35054be8a2472bdd49d4) )
ROM_LOAD( "boot.rom", CRC(ed98d6dd) SHA1(4671ee49bb96262b0468f7122a49bf2588170903) )
ROM_LOAD( "mtx3-an.rom", CRC(54c9eca2) SHA1(3e628beaa360e635264c8c2c3a5b8312951a220b) )
ROM_LOAD( "nboot.rom", CRC(9caea81c) SHA1(93fca6e7ffbc7ae3283b8bda9f01c36b2bed1c54) )
ROM_END
BASIC.ROM this contains the monitor ROM plus the BASIC ROM.
It's good to view them as one, because the monitor
ROM contains a good deal of BASIC code and the machine
code just runs from the monitor ROM into the BASIC ROM.
It's also handy if you want to disassemble it (which
you don't need because it's already done).
MTX3-AN.ROM the monitor ROM, but slightly modified
While detecting memory size, the startup code destroys
RAM content. When you have a lot of RAM it is convenient
to have a ramdisk for CP/M, but it is a nuisance if the
ramdisk is trashed at each reset. The modification simply
prevents RAM trashing.
ASSEM.ROM assembler ROM
BOOT.ROM FDX floppy boot ROM
NBOOT.ROM replacement FDX boot ROM written by M. Kessler (supports
booting from different disk formats and different drives)
*/