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A comment on ARMing a Breadboard – Everyone Should Program an ARM. Parent comment

Re:ARMing a Breadboard – Everyone Should Program an ARM by d9fb698e010974b on Saturday October 10, 2015 @11:38AM (#10365831)
That shouldn't encumber most people though. How many people who don't already know that have the skills to seriously compete with ARM? Probably none.
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Re:ARMing a Breadboard – Everyone Should Program an ARM by 0xcde4c3db on Saturday October 10, 2015 @12:38PM (#10366013)
Historically, it hasn't really taken "serious competition" to invite threats. There's a reason that the best-known open-source ARM implementation explicitly only targets ARMv2 (which dates from the days when the "A" stood for "Acorn") [1].

That said, people who just want to play with ARM-based hardware can get pretty far by leaning on the GNU support and third-party documentation (there are some Game Boy Advance documents that cover the ARMv4 instruction set, for example).

[1]: http://opencores.org/project,amber

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