From: Keith Packard <keithp@keithp.com>
Date: Sun, 17 Jun 2012 23:14:33 +0000 (-0700)
Subject: altos: Be more careful about register save/restore in ao_yield
X-Git-Tag: 1.0.9.6~62
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=1a294852b3607947f0f86bf236785456d8719e5f;hp=1a294852b3607947f0f86bf236785456d8719e5f;p=fw%2Faltos

altos: Be more careful about register save/restore in ao_yield

Make sure the general registers are all saved before messing with any
of them. Then, explicitly use r0 to save/restore apsr and primask.

Signed-off-by: Keith Packard <keithp@keithp.com>
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