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From: claude vittoria <vittoric@wanadoo.fr>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [ARM] add with PC in argument
Date: Sun, 24 Feb 2008 13:57:04 +0100	[thread overview]
Message-ID: <47C169A0.1020705@wanadoo.fr> (raw)

Hello,

I got a problem in an IRQ handler of mutek OS 
(https://www-asim.lip6.fr/trac/mutekh), target ARM Integrator/CM 
922T-XA10. I try to port it on Qemu. A porting has been done for Skyeyes

So in qemu I don't get the same comportement. The add of lr = pc + 4 
gives lr = pc + 8 into qemu.
I think that s->pc += 4 at start of disas_arm_insn alters the result.
Could you confirm ?

0x7c    add    lr, pc, #4
0x80    ldr    pc, =SystemInterrupt

0x84    ldr    r3, [sp, #PSR_OFF]  <= never executed in Qemu
0x88    msr    spsr_cxsf, r3        @ put cpsr in SPSR
0x8c    ldmia    sp, {r0-r15}^        @ restore Context

B.R.
Claude

             reply	other threads:[~2008-02-24 12:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-24 12:57 claude vittoria [this message]
2008-02-25 17:34 ` [Qemu-devel] [ARM] add with PC in argument Daniel Jacobowitz
2008-02-25 17:53 ` Laurent Desnogues
  -- strict thread matches above, loose matches on Subject: below --
2008-02-26  7:55 claude vittoria

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