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From: David Updegraff <dave@cray.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] need PPC asm. help. for 83xx watchdog
Date: Fri, 06 Jan 2006 09:22:26 -0600	[thread overview]
Message-ID: <43BE8B32.1060507@cray.com> (raw)

Hi.

Attempting to enable&use watchdog in 8343; but run into Assembler
(v.2.15) problem in cpu/mpc83xx/start.S:424
....
/* and reset it */
	li	r4, 0x556C
	sth	r4, SWSRR at l(r3)
	li	r4, 0xAA39    <-------- gas barks here, 0xAA39 > 0x8000
	sth	r4, SWSRR at l(r3)

which I do not understand, since I thought 'li' was an UNsigned 16bit
load. I can work around it in a kludgey way with.

	lis	r4, 0
	ori	r4, r4, 0xAA39
	sth	r4, SWSRR at l(r3)

but wonder if one you PowerPC assembler gurus could offer better suggestion.

Thanx.

-dbu.

             reply	other threads:[~2006-01-06 15:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-06 15:22 David Updegraff [this message]
2006-01-06 15:36 ` [U-Boot-Users] need PPC asm. help. for 83xx watchdog Jerry Van Baren
2006-01-07 11:03   ` Pantelis Antoniou

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