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Diffstat (limited to 'src/devices/bus/spectrum/beta.cpp')
-rw-r--r--src/devices/bus/spectrum/beta.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/devices/bus/spectrum/beta.cpp b/src/devices/bus/spectrum/beta.cpp
index 1adf53d5984..2825a36ddc9 100644
--- a/src/devices/bus/spectrum/beta.cpp
+++ b/src/devices/bus/spectrum/beta.cpp
@@ -160,17 +160,18 @@ ROM_START(betav3)
ROM_RELOAD(0x3000,0x1000)
ROM_END
-// some sources indicate these should be 16kb roms with both halves duplicated, others suggest the same but with the first byte being 0x00 instead (maybe an issue with the dumping)
-// there are also some '412' unscrambled dumps with most of the data in the mirror regions as 0xff (maybe official, maybe from clone devices that should be treated separately?)
ROM_START(betaplus)
ROM_REGION(0x4000, "rom", 0)
- ROM_DEFAULT_BIOS("trd409")
+ ROM_DEFAULT_BIOS("trd412")
ROM_SYSTEM_BIOS(0, "trd409", "TR-DOS v4.09")
ROMX_LOAD("trd409.bin", 0x0000, 0x2000, CRC(18365bdc) SHA1(a0e7c80905423c54bd497575026ea8821061175a), ROM_BIOS(0))
ROM_RELOAD(0x2000,0x2000)
ROM_SYSTEM_BIOS(1, "trd411", "TR-DOS v4.11")
ROMX_LOAD("trd411.bin", 0x0000, 0x2000, CRC(26902902) SHA1(cb90fc31bf62d5968730db23a600344338e31e7e), ROM_BIOS(1))
ROM_RELOAD(0x2000,0x2000)
+ ROM_SYSTEM_BIOS(2, "trd412", "TR-DOS v4.12")
+ ROMX_LOAD("trd412.bin", 0x0000, 0x2000, CRC(f72efdf4) SHA1(b53ea4020be846ffc02ce586f7b52938c2c76f98), ROM_BIOS(2))
+ ROM_RELOAD(0x2000,0x2000)
ROM_END