Fwd: Loading OS into software model of SPARC(without BIOS and boot loader)

Subject: Fwd: Loading OS into software model of SPARC(without BIOS and boot loader)

From: Renju Boben <renjuboben@gmail.com>

Date: Sun, 12 Oct 2014 04:18:46 +0530

Message-id: <[🔎] CAKwR5Q2dmGueGyzQO0Z+HNE_rrbrcVT-2ukvD9+0Eqipj1atUQ@mail.gmail.com>

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---------- Forwarded message ----------
From: Renju Boben <renjuboben@gmail.com>
Date: Mon, Sep 29, 2014 at 3:54 AM
Subject: Loading OS into software model of SPARC(without BIOS and boot loader)
To: sparclinux@vger.rutgers.edu

Hi,

I have the software model of a SPARC v8 processor and its Memory management unit. The model accepts input (instructions) in the form <address> <data>.

I am trying to load stripped down Linux 3.1.4 into it (without BIOS and boot loader). I have the kernel in the required format. But i don,t know from which address to start executing. Also, what should be the condition of the registers when the OS is about to load.

I have read that in x86 architecture after 640KB there are special jump instructions (because original 8086 only had 640 KB of memory). Are there any similar jumps in SPARC. if so how does if affect loading OS. Has this jumping any dependence on Boot loader

Regards,

Renju Boben

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