From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri, 18 Sep 1998 08:09:50 -0400
From: Russ Cox rsc@plan9.bell-labs.com
Subject: [9fans] screenblanker
Topicbox-Message-UUID: 80db6446-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19980918120950.QBzSCHfmD6qcFF-4OAtYn2aSTXtwFh0eheUlaR31eMI@z>

> I'd like to apply Russ's cmap version to Sparc ELC,  and
> got fails.  Can I do it?

I don't see why not.  You'll need to create the map "black"
in /lib/fb/cmap though, I think.  It's just 768 zeros: 

#include <u.h>
#include <libc.h>

char c[3*256];
void main(void) { write(1, c, sizeof c); }

8.out >/lib/fb/cmap/black