RS2030 MIPS workstation

Al Kossow aek at bitsavers.org
Fri May 3 18:47:32 CDT 2019



On 5/3/19 4:25 PM, Al Kossow via cctalk wrote:

> http://www.geekdot.com/the-mips-rs2030/
> 
> someone else had the same problem in the comments
> 
> 

also, there is a simulation running in mame
if you look at drivers/mips.cpp you'll find the nvram layout

/*
	 * The following isn't a real dump, but a hand-made nvram image that allows
	 * entry to the boot monitor. Variables can be adjusted via the monitor,
	 * and are laid out as follows:
	 *
	 *   Offset  Length  Variable
	 *    0x0e      4    netaddr
	 *    0x12      1    lbaud
	 *    0x13      1    rbaud
	 *    0x14     20    bootfile
	 *    0x28      1    bootmode
	 *    0x29      1    console
	 *    0x2a      1    ponmask? or something similar
	 *    0x2b      3    unused?
	 *    0x2e      4    resetepc
	 *    0x32      4    resetra
	 *    0x36      1    keyswtch
	 *    0x37      1    flag
	 *    0x38      8    unused?
	 *
	 */



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