Questions tagged [firmware]
for questions about firmware on retrocomputing hardware
7
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When did wear leveling in flash storage come up?
I think most modern flash drives (from SATA disks to USB drives) have some kind of wear leveling.
Normally a block (small amount of bytes) in a flash chip cannot be erased and programed an unlimited ...
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Origin of Cisco-like CLI?
Loads and wagons of networking devices all over the world use the same manner for commandline interface (CLI). First I met it in 1990s at Cisco devices (switches, routers...) which used Cisco IOS. It ...
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Which generations of PowerPC did Windows NT 4 run on?
In a blog entry at The Old New Thing, Raymond Chen states that Windows NT first started supporting the 603 and 604 series of PowerPC processors. Was there a specific firmware version which was needed ...
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Trying to create a filesystem ROM for Amstrad CPC but tape is still waiting
Some background: I want to create a CPC MicroSD interface, so my first step is trying to hook the CAS* jumpblock entries just like AMSDOS and other DOSes do.
My first goal is to override CAS CATALOG ...
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Are BIOS ROMs interchangeable among different vendor's PCs?
For PC/AT, 80386, and 80486 machines from the late-1980s through early 1990s (e.g. retro machines, not modern), can you expect to pull a BIOS ROM from one machine and have it work fine in a different ...
CommunityBot
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How exactly does the Apple II monitor set and use the "last opened" and "next changable" locations?
Chapter 3 of the Apple II Reference Manual describes the
machine-language Monitor. On page 41 it describes certain
remembered locations:
The Monitor remembers the addresses of up to five locations. ...
CommunityBot
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What is this code on the zero page that was put there by the BASIC ROM?
(question copied from SO (from the days before RC.SE existed): http://stackoverflow.com/q/31877835/477476)
Zero-page memory maps of the PET that I've found claim that the zero page address range$00C2....
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