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Starting work on disambiguating PCjs the emulator from PCjs the project/website; the emulator will become PCx86

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Jeff Parsons 2016-05-16 20:53:57 -07:00
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devices/pc/rom/5150/basic/README.md
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---
layout: page
title: IBM PC BASIC ROMs
permalink: /devices/pc/rom/5150/basic/
redirect_from:
- /devices/pc/basic/
---
IBM PC BASIC ROMs
---
The project contains the following IBM PC BASIC ROMs:
* [IBM BASIC C1.00](BASIC100.json)
* [IBM BASIC C1.10](../../5160/basic/BASIC110.json)
These built-in versions of BASIC were also referred to as Cassette BASIC, because no disk drive was required.
Only the original IBM PC (Model 5150) actually provided a cassette interface, but IBM continued to use that
name to describe the built-in BASIC, at least up through the IBM PC AT (Model 5170).
Both versions of Cassette BASIC where 32Kb and spanned physical addresses 0xF6000-0xFDFFF. They were produced by
Microsoft, and unlike the IBM PC BIOS ROMs, no source code listings of these BASIC ROMs were ever published.
Here's an [IBM PC Machine](/devices/pc/machine/) XML excerpt that shows how to include a BASIC ROM:
<rom id="romBASIC" addr="0xf6000" size="0x8000" file="/devices/pc/rom/5150/basic/BASIC100.json"/>