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Initial commit (a clone of the jsmachines project as of v1.15.3)

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jeffpar 2014-09-27 14:52:57 -07:00
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devices/pc/bios/5170/README.md Normal file
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From [http://minuszerodegrees.net/bios/BIOS_5170_10JAN84_6MHZ/README.TXT](http://minuszerodegrees.net/bios/BIOS_5170_10JAN84_6MHZ.zip):
This is the first BIOS for the IBM 5170.
It is dated 10JAN84.
It is found in type 1 motherboards running at 6 Mhz.
U27 has the IBM part number of 6181028, and is 32K in size
U47 has the IBM part number of 6181029, and is 32K in size
8 bit checksum of 6181028 = 36
8 bit checksum of 6181029 = CA
----
added = 00
There are two BIN files in this ZIP file:
1. BIOS_5170_10JAN84_U27_6181028_27256_6MHZ.BIN --> Use this to create a U27 using a 27256 EPROM (rated at 150nS or faster)
2. BIOS_5170_10JAN84_U47_6181029_27256_6MHZ.BIN --> Use this to create a U47 using a 27256 EPROM (rated at 150nS or faster)
The JSON-encoded ROM image that PCjs uses ([1984-01-10.json]()) was created using the *FileDump* command-line *merge* option:
filedump --file=BIOS_5170_10JAN84_U27_6181028_27256_6MHZ.BIN --merge=BIOS_5170_10JAN84_U47_6181029_27256_6MHZ.BIN --output=1984-01-10.json
Similarly, to create a binary ROM image ([1984-01-10.rom]()), add *--format=rom* to the command-line. These operations can
only be performed using the *FileDump* command-line interface; the *FileDump* API does not support the *merge* option.
A MAP file [1984-01-10.map]() exists as well, which is automatically appended to the JSON file when using a ROM input
file (or JSON output file) with a matching filename. For example:
> [http://www.pcjs:org/api/v1/dump/?file=/devices/pc/bios/5170/1984-01-10.rom](/api/v1/dump/?file=/devices/pc/bios/5170/1984-01-10.rom)