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- Newsgroups: comp.sys.ibm.pc.misc
- Path: sparky!uunet!psgrain!qiclab!leonard
- From: leonard@qiclab.scn.rain.com (Leonard Erickson)
- Subject: Re: XT DOS in PROM (EPROM)?
- Message-ID: <1992Sep4.025121.24667@qiclab.scn.rain.com>
- Reply-To: 70465.203@compuserve.com
- Organization: SCN Research/Qic Laboratories of Tigard, Oregon.
- References: <1992Sep2.143411.12756@ericsson.se>
- Date: Fri, 4 Sep 1992 02:51:21 GMT
- Lines: 24
-
- etxvsi@james10.jamesdom (Vitomir Ilic) writes:
-
- >Has anyone tried to put PC-XT DOS in PROM(s) or EPROM(s)?
- >How to tell the PC to execute programs from the PROM(s),
- >rather than to load them from hard disk to RAM and then
- >execute?
-
- The machine I'm entering this on has DOS 3.3 in ROM. If I
- set the config properly, it'll boot from the ROM even though
- there's an HD (or even if there's a floppy in the A drive!)
-
- It's Phoenix BIOS.
-
- I believe that support for what you want has to be in the BIOS
- or it won't work. Though I could easily be wrong. Don't forget
- that at boot time all "expansion ROMs" are checked to see if
- they have code that has to be installed then. Such code can override
- the BIOS.
-
- --
- Leonard Erickson leonard@qiclab.scn.rain.com
- CIS: [70465,203] 70465.203@compuserve.com
- FIDO: 1:105/51 Leonard.Erickson@f51.n105.z1.fidonet.org
- (The CIS & Fido addresses are preferred)
-