Comments on: Booting a PC over serial port via ROM Basic! https://virtuallyfun.com/2018/12/26/booting-a-pc-over-serial-port-via-rom-basic/ Fun with Virtualization Wed, 26 Dec 2018 20:40:01 +0000 hourly 1 https://wordpress.org/?v=7.0 By: Chris M. https://virtuallyfun.com/2018/12/26/booting-a-pc-over-serial-port-via-rom-basic/comment-page-1/#comment-205915 Wed, 26 Dec 2018 20:40:01 +0000 https://virtuallyfun.com/wordpress/?p=9137#comment-205915 A similar system exists for the Apple II called ADTPro. It can be bootstrapped from Applesoft BASIC using either the cassette port or a serial port. Once up and running, you can transfer disk images to real disks on the Apple II. Very handy for getting a system up and running when you don’t have any boot floppies.

]]> By: bbslovag https://virtuallyfun.com/2018/12/26/booting-a-pc-over-serial-port-via-rom-basic/comment-page-1/#comment-205889 Wed, 26 Dec 2018 10:16:49 +0000 https://virtuallyfun.com/wordpress/?p=9137#comment-205889 Actually, the pasted screenshot is a bare “CAS1:” booting and merged into a Galaxian splash. The serial boot is similar, but instead of using LOAD, needs 2 lines of basic code with injected machine code into DATA line(s).

Anyone is kindly welcome to shorten the basic loader, improvement ideas etc.

Also it is worth mentioning that crap PS/2 quality boards and their ridiculous HW configuration data are usually getting lost in decades and/or integrated storage controllers might have damage. In such case, a rom basic would be handy 😉 Even just for reprogramming the NVRAM – also keep in mind that their CMOS layout differs from ordinary IBM WC compatibles 😛

I am working on a serial/lpt/cas bootable rAm-dos (2.11+ based)

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