| Filename | Latest commit message | Latest commit date |
|---|---|---|
| .. | ||
| 1984-01-10.json | ||
| 1984-01-10.map | ||
| README.md | ||
From http://minuszerodegrees.net/bios/BIOS_5170_10JAN84_6MHZ/README.TXT:
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