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Message
From: Flavio M. De Paula<depaulfm@c...>
Date: Thu Jul 17 21:11:15 CEST 2008
Subject: [openrisc] What tag version of the RTL should I use that matches
the or1k-sim?
Hi Jeremy,Let me try to be more specific on my question. What version of the
openrisc is the ork1sim based on?
A clear difference between version 1/1/04 and or1ksim 0.2.0 is that in the
latter there is a memory controler at address 0x93000000 (I looked in the
sim.cfg file), whereas in the RTL there is no memory controller per say --
meaning, I searched for a memory controller unit, or something that
resembles one, the only thing closer to it is the traffic cop.
The problem I'm having in the RTL is at the 5th instr (see below), when
the cpu is supposed to fetch instruction at address 0xf0000118.
To answer to your e-mail: I have downloaded and installed the new
toolchain. I was able to boot linux 2.6.19. No problem here. But, there
seems to be a clear difference between the actual hardware and the arch
simulator. The aim of this e-mail to make sure I am comparing apples w/
apples.
Thank you for your cooperation. And, yes, once I find bugs I will file
them and suggest fixes.
----- output of or1ksim
r3 =00000001 00000100 l.ori r3,r0,0x1
r3 =00000001 00000104 l.mtspr r0,r3,0x11
r3 =f0000000 00000108 l.movhi r3,0xf000
r3 =f0000118 r3 =f0000118 0000010c l.ori r3,r3,0x118
r3 =f0000118 00000110 l.jr r3
-----------
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