These are the ROM's present in a Datapoint 5500.
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There are 10 256x4 MMI6301 proms, on the mainboard, containing microcode and interrupt vectors.
Another 4 are 1kx8 82s181 proms, located on a memory board, containing firmware.

All ROMS were extracted without desoldering from the boards, as the owner insisted on no desoldering.

  Firmware :
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Firmware roms are : z21_88d5.bin, z22_8c21.bin, z24_2e87.bin and z25_1dad.bin
These are labeled as 506006 to 506009, rev A.
These are combined in  5500firmware.bin

  Microcode :
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Microcode roms are : z23.bin, z24.bin, z41.bin and z42.bin
These are combined in statemachine.bin

Decoder   roms are : z5.bin, z6.bin, z21.bin and  z22.bin
These are combined in decoder.bin

Interrupt vectors are in z61.bin & z62.bin
These are combined in interrupt.bin


jos.dreesen@greenmail.ch 2024








