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5170 and Enhanced DEBUG updates

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This commit is contained in:
Jeff Parsons 2016-04-11 18:19:53 -07:00
commit b55e6ba2c4
30 changed files with 720 additions and 62 deletions
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41
devices/pc/rom/5170/README.md
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@ -8,9 +8,25 @@ redirect_from:
- /devices/pc/rom/5170/bios/
---
IBM PC AT (Model 5170) BIOS
IBM PC AT (Model 5170) ROM Revisions
---
[ATBIOS-REV1.json](1984-01-10/ATBIOS-REV1.json) contains the original IBM PC AT BIOS.
There were three ROM BIOS revisions for the IBM PC AT, which we refer to as **[Rev 1](#ibm-pc-at-rom-bios-rev-1)**,
**[Rev 2](#ibm-pc-at-rom-bios-rev-2)**, and **[Rev 3](#ibm-pc-at-rom-bios-rev-3)**. Each revision was used with a
corresponding motherboard type (**Type 1**, **Type 2**, and **Type 3**, respectively), which in turn were used with
corresponding 5170 models ([Models 68 and 99](/devices/pc/machine/5170/#models-68-and-99),
[Model 239](/devices/pc/machine/5170/#model-239), and
[Models 319 and 339](/devices/pc/machine/5170/#models-319-and-339), respectively).
IBM PC AT ROM BIOS (Rev 1)
---
[ATBIOS-REV1.json](1984-01-10/ATBIOS-REV1.json) contains the original IBM PC AT BIOS, dated January 10, 1984
("01/10/84"). It was produced for [5170 Models 68 and 99](/devices/pc/machine/5170/#models-68-and-99),
announced August 14, 1984.
Do we really think this PC AT BIOS was "finalized" a full 7 months before the PC AT was even announced, let alone
available? I doubt it. I suspect the BIOS date string was simply never updated to reflect the date of the final
change(s).
From [http://minuszerodegrees.net/bios/BIOS_5170_10JAN84_6MHZ.zip](http://minuszerodegrees.net/bios/):
@ -48,10 +64,13 @@ either the *merge* option or the appending of MAP data. For the moment, the API
---
IBM PC AT (Model 5170) BIOS ("Rev 2")
IBM PC AT ROM BIOS (Rev 2)
---
[ATBIOS-REV2.json](1985-06-10/ATBIOS-REV2.json) contains the second IBM PC AT BIOS, dated June 10, 1985, which expanded hard disk
support from 15 to 23 drive types, fixed some bugs, and added support for 720Kb 3.5-inch floppy diskette drives.
[ATBIOS-REV2.json](1985-06-10/ATBIOS-REV2.json) contains the second IBM PC AT BIOS, dated June 10, 1985.
This BIOS was produced for [5170 Model 239](/devices/pc/machine/5170/#model-239), announced October 10,
1985. It increased the number of supported hard disk types from 15 to 23, fixed some bugs, and added support for 720Kb
3.5-inch floppy diskette drives.
From [http://minuszerodegrees.net/bios/BIOS_5170_10JUN85_6MHZ.zip](http://minuszerodegrees.net/bios/):
@ -78,10 +97,16 @@ The JSON-encoded ROM image that PCjs uses was created using the *FileDump* comma
---
IBM PC AT (Model 5170) BIOS ("Rev 3")
IBM PC AT ROM BIOS (Rev 3)
---
[ATBIOS-REV3.json](1985-11-15/ATBIOS-REV3.json) contains the third (and last) IBM PC AT BIOS, dated November 15, 1985,
which added support for 101-key keyboards and 1.44Mb floppy diskette drives.
[ATBIOS-REV3.json](1985-11-15/ATBIOS-REV3.json) contains the third (and last) IBM PC AT BIOS, dated November 15, 1985.
This BIOS was produced for [5170 Models 319 and 339](/devices/pc/machine/5170/#models-319-and-339),
announced April 2, 1986. It added support for 101-key keyboards and 1.44Mb 3.5-inch floppy diskette drives.
Note that, although minuszerodegrees.net says this revision was found in "type 2 motherboards running at 8 Mhz",
the [Vintage Computer Federation](http://www.vcfed.org/forum/showthread.php?26480) refers to the 8Mhz motherboards as
"Type 3".
From [http://minuszerodegrees.net/bios/BIOS_5170_15NOV85_8MHZ_VARIATION_2.zip](http://minuszerodegrees.net/bios/):