The Apple eMate 300 boot ROM is a huge jerk. The first instruction it runs is branch to 0x01A00004, which is well outside the 8-meg space it occupies. There's got to be something stupidly simple that I'm missing here, but I'll be darned if I know what it is.
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At reset, didn't the ARM 710A start in 26-bit addressing mode?
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Yes. Apparently I can't count.
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Is it a setup where early reads are forced to enable the ROM, but the code has to jump to the "real" ROM address? That was common on some other processors, but there's no obvious reason to do it on an ARM.
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