From 7119d79b8a9a4023414f7664a011e40fafb44dfd Mon Sep 17 00:00:00 2001
From: "Kartik K. Agaram" <vc@akkartik.com>
Date: Mon, 15 Mar 2021 21:46:53 -0700
Subject: snapshot: write to disk using BIOS

Requires the following commands:
  dd if=/dev/zero of=data.img count=20160
  ./translate life.mu
  qemu-system-i386 -hda disk.img -hdb data.img

Before running Qemu, data.img will contain all 0s.
After quitting Qemu, data.img will contain the first 512 bytes of disk.img.
---
 boot.bochsrc | 1 +
 1 file changed, 1 insertion(+)

(limited to 'boot.bochsrc')

diff --git a/boot.bochsrc b/boot.bochsrc
index a1c8a4bc..360cbe40 100644
--- a/boot.bochsrc
+++ b/boot.bochsrc
@@ -10,6 +10,7 @@
 display_library: sdl2
 
 ata0-master: type=disk, path="disk.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
+ata1-master: type=disk, path="data.img", mode=flat, cylinders=20, heads=16, spt=63  # 10MB, 512 bytes per sector
 boot: disk
 # PS/2 mouse requires black magic that I don't know how to explain.
 log: -
-- 
cgit 1.4.1-2-gfad0