Option ROMs
9845B/C Option ROMs
The following table is derived from the ROMREV program on the second 9845B/C System Exerciser Rev. E tape. It shows the part numbers, a short content description, a revision number, the systems they belong to, the number of 10K-ROMs that belong to a complete set, a checksum, the memory address and the memory block where the ROM data is located, and a download link for the ROM data if it has already been dumped.
The system information is encoded as follows:
B = 9845B with standard monochrome graphics option
T = 9845B with fast monochrome graphics option
C = 9845C with color graphicsStd. LPU = standard hybrid LPU
Fast LPU = bit slice LPU
Note that the address information and the block ID are both in octal notation. 10K (Octal) stands for 8 kWords or 16 kBytes decimal. The checksum is always a decimal integer between -32768 and +32767.
Example:
- The latest PPU Mass Storage Option ROM Rev. D has the part number 09845-65516 (Option ROM modules have only one single part number). It can be used with any configuration. The ROM set includes 3 x 10K. The address space for this ROM set starts at octal 10K (= word address 10000) of octal block 11 (one of the PPU option ROM blocks) and ends at the the octal word address 37777 of the same block. The checksums for the three consecutive 10K memory regions are 6401, -8986 and -31347.
| Part No. (UB/LB) | Description | Rev. | Std. LPU | Fast LPU | Rom Set |
Checksum | Addr (oct) |
Block (oct) |
D/L | ||||
| B | T | C | B | T | C | ||||||||
| 09845-65517 | GRAPHICS | A | * | * | 2 | 26322 | 30K | 7 | |||||
| " | " | " | 13102 | 40K | 7 | ||||||||
| 09845-65517 | GRAPHICS | B | * | * | 2 | 26322 | 30K | 7 |  |
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| " | " | " | 6161 | 40K | 7 | |
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| 09845-66517 | GRAPHICS | C | * | * | 2 | -10391 | 30K | 7 | |||||
| " | " | " | 6161 | 40K | 7 | ||||||||
| 98770-65501 | CLR GRAPHICS | A | * | * | 4 | 27021 | 30K | 7 | |||||
| " | " | " | 5557 | 40K | 7 | ||||||||
| " | " | " | 27657 | 50K | 7 | ||||||||
| " | " | " | 14218 | 60K | 7 | ||||||||
| 98770-65501 | CLR GRAPHICS | B | * | * | 4 | 12529 | 30K | 7 | |||||
| " | " | " | 3588 | 40K | 7 | ||||||||
| " | " | " | 29874 | 50K | 7 | ||||||||
| " | " | " | 18282 | 60K | 7 | ||||||||
| 98770-65501 | CLR GRAPHICS | D | * | * | 4 | 12529 | 30K | 7 | |
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| " | " | " | 3588 | 40K | 7 | |
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| " | " | " | 29874 | 50K | 7 | |
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| " | " | " | -13666 | 60K | 7 | |
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| 98780-65501 | ENH GRAPHICS | A | * | * | * | * | 5 | -25606 | 20K | 7 | |||
| " | " | " | 12654 | 30K | 7 | ||||||||
| " | " | " | 3588 | 40K | 7 | ||||||||
| " | " | " | 31504 | 50K | 7 | ||||||||
| " | " | " | -11207 | 60K | 7 | ||||||||
| 98780-65501 | ENH GRAPHICS | B | * | * | * | * | 5 | -25606 | 20K | 7 | |
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| " | " | " | 12654 | 30K | 7 | |
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| " | " | " | 3588 | 40K | 7 | |
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| " | " | " | -29502 | 50K | 7 | |
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| " | " | " | -30284 | 60K | 7 | |
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| 09845-65516 | MASS STORAGE | D | * | * | * | * | * | * | 3 | 6401 | 10K | 11 | |
| " | " | " | -8986 | 20K | 11 | |
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| " | " | " | -31347 | 30K | 11 | |
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| 09845-65516 | MASS STORAGE | A | * | * | * | * | * | * | 2 | -11284 | 10K | 11 | |
| " | " | " | 9154 | 20K | 11 | ||||||||
| 09845-65516 | MASS STORAGE | B | * | * | * | * | * | * | 2 | 6401 | 10K | 11 | |
| " | " | " | -32000 | 20K | 11 | |
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| 09845-65516 | MASS STORAGE | C | * | * | * | * | * | * | 2 | 6401 | 10K | 11 | |
| " | " | " | -8986 | 20K | 11 | |
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| 09845-65519 | I/O PPU | A | * | * | * | * | * | * | 2 | 0 | 40K | 11 | |
| " | " | " | 0 | 50K | 11 | ||||||||
| 09845-65519 | I/O PPU | B | * | * | * | * | * | * | 2 | -26054 | 40K | 11 | |
| " | " | " | -17517 | 50K | 11 | |
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| 09845-65519 | I/O PPU | C | * | * | * | * | * | * | 2 | -28707 | 40K | 11 | |
| " | " | " | -17517 | 50K | 11 | |
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| 09845-65586 | RM PPU | A | * | * | * | * | * | * | 2 | 4854 | 60K | 11 | |
| " | " | " | -10507 | 70K | 11 | |
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| 09845-65521 | ADV PROG | A | * | * | * | * | * | * | 1 | -4151 | 10K | 13 | |
| 09845-65518 | I/O LPU | A | * | * | * | * | * | * | 2 | 25916 | 50K | 13 | |
| " | " | " | 22486 | 60K | 13 | |
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| 09845-65518 | I/O LPU | B | * | * | * | * | * | * | 2 | 3586 | 50K | 13 | |
| " | " | " | 22486 | 60K | 13 | |
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| 09845-65585 | RM LPU | A | * | * | * | * | * | * | 1 | -20447 | 70K | 13 | |
| 09845-65527 | DBM PPU | A | ? | ? | ? | ? | ? | ? | 3 | 18685 | 50K | 15 | |
| " | " | " | -21899 | 60K | 15 | ||||||||
| " | " | " | -12548 | 70K | 15 | ||||||||
| 09845-65527 | DBM PPU | B | * | * | * | * | * | * | 3 | 10404 | 50K | 15 | |
| " | " | " | -21899 | 60K | 15 | |
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| " | " | " | -12548 | 70K | 15 | |
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| 09845-65527 | DBM PPU | C | * | * | * | * | * | * | 3 | -6081 | 50K | 15 | |
| " | " | " | 13955 | 60K | 15 | |
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| " | " | " | -12548 | 70K | 15 | |
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| 09845-65526 | DBM LPU | A | ? | ? | ? | ? | ? | ? | 2 | -25604 | 10K | 17 | |
| " | " | " | 593 | 20K | 17 | ||||||||
| 09845-65526 | DBM LPU | B | * | * | * | * | * | * | 2 | 13997 | 10K | 17 | |
| " | " | " | 2308 | 20K | 17 | |
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| 09845-65528 | STRUCT PROG | A | * | * | * | * | * | * | 1 | 16803 | 30K | 17 | |
| 09845-65525 | ASSY DEVELOP | A | * | * | * | * | * | * | 4 | 25302 | 40K | 17 | |
| " | " | " | -1865 | 50K | 17 | |
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| " | " | " | -24723 | 60K | 17 | |
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| " | " | " | -25478 | 70K | 17 | |
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| 09845-65524 | ASSY EXECUTE | A | * | * | * | * | * | * | 2 | 25302 | 40K | 17 | |
| " | " | " | -1865 | 50K | 17 | |
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| 09845-67965 | DATA COM ASYN | A | * | 4 | 17929 | 0K | 21 | |
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| " | " | " | -20908 | 10K | 21 | |
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| " | " | " | 18533 | 20K | 21 | |
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| " | " | " | 4794 | 30K | 21 | |
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| 09845-67986 | DATA COM BISY | A | * | * | * | * | * | * | 2 | -22245 | 40K | 21 | |
| " | " | " | 10654 | 50K | 21 | |
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| 09845-65520 | TEST ROM | n/a | * | * | * | * | * | * | 2 | -5339 | 0K | 45 | |
| " | " | n/a | -10043 | 10K | 45 | |
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The above option ROMs can be downloaded here as complete archive: 9845-Option-ROM-Readouts-080414.zip
9845A Option ROMs
All the 9845A ROMs (both the operating system ROMs and the option ROMS), are provided as pluggable ROM modules. The ROM drawer of the 9845A is different than that of the 9845B/C and can't be exchanged.
| Part No. (UB/LB) | Description | Rev. | Checksum | Addr (oct) |
Block (oct) |
D/L |
| 09845-65532 | I/O LPU | ? | ????? | ? | ? | |
| 09845-65533 | I/O PPU | ? | ????? | ? | ? | |
| 09845-65537 | GRAPHICS | ? | ????? | ? | ? |
9845 Option ROMs Released by 3rd Party Vendors
The following table shows the same information for third party ROMs.
| Manufacturer | Description | Rev. | Rom Set |
Checksum | Addr (oct) |
Block (oct) |
D/L |
| Structured Software Systems | Mass Storage | B | 2 | -28515 | 10K | 15 | |
| " | " | " | 14378 | 20K | 15 | |
|
| " | Programmer's Toolkit | 2 | 9854 | 50K | 27 | |
|
| " | " | 14123 | 60K | 27 | |
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| Infotek Systems | PDR-45 | C | 2 | -18759 | 20K | 27 | |
| " | " | " | -8537 | 30K | 27 | |
The above 3rd party ROMs can be downloaded here as complete archive: 9845-3rd-Party-ROM-Readouts-090102.zip