BBC BASIC - MDFS::Software.$.BBCBasic.BBC

6502 BBC BASIC for Acorn BBC/Master

MDFS::Software.BBCBasic.BBC

The original versions of BBC BASIC were written by Roger Wilson for the 6502 for Acorn Computers. It was developed on the Acorn System and as the onboard Basic for the BBC Microcomputer.

Download Platform Date Size Details
Basic 1
Basic1.zip BBC/Atom/System
Source 1981 16K
40K The original BBC BASIC developed on the Atom/System 5 and supplied with early versions of the BBC Microcomputer in 1981.
Source assemblable with ARM BASIC 65 to target either the Atom/System or the BBC.
Basic 1.10 1981 16K
Basic 2
Basic2.zip BBC
Source 1982 16K
55K Bugs fixed, arithmetic improvement, OSCLI, EQUs and OPENIN/OUT/UP.
Source assemblable with ARM BASIC 65 to target the Atom/System, the BBC, and the Commodore 64; to create BASIC 2.00, BASIC 3.00 and BASIC 3.10.
Basic65C02
Basic65C02
Basic65C02 BBC/Master Tube 1982 16K BBC BASIC 2 with 65C02 assembler. Three different versions.
65C02B.src source for the first version.
Basic 3
Basic 3.10 BBC 1983
1983 16K
16K
16K US BASIC 3. This is not quite HiBasic3 assembled at &8000. As well as COLOUR and COLOR being transposed there are some minor bugfixes and optimisation.
HiBasic 3 BBC Tube 1983 16K BASIC 3 relocated to &B800 to run on the 6502 second processor.
C0Basic 3
Squash2.zip 6502
Source 2015 16K
55K Cut-down BASIC 3 relocated to &C000 to run with a tiny 700-byte kernel.
See also 6502SBC for examples with tiny MOSes.
Basic 4
Basic4.zip Master
Source 1984 16K
31K BASIC 4 as supplied with the Master 128. BASIC 4 will run on the BBC B/B+ or Electron if the 6502 CPU is replaced with a 65C02. Naturally, any MOS- or filing system-specific functions (eg TIME$) will not do anything unless additional software responds to the calls.
Source assemblable with Assem or ARM BASIC 65.
HiBasic 4.01 Master Tube 1984 16K BASIC 4 relocated to &B800 to run on the 6502 second processor, with a two-byte DIM bugfix.
Basic 128 Master 1985 15K BASIC 4 set up to run from main RAM with shadow screen and four banks of sideways RAM for 64K of program workspace. Version 1.10.
Basic 40 Master Compact 1986 16K -
Basic 40 (Oli) Olivetti Compact 1986 16K -
Basic 41 Master Compact 1986 -
HiBasic 4.30 Master Tube 1987 16K BASIC 4.30 relocated to &B800 to run on the 6502 second processor.
Basic 4.31 Master 1987 16K BASIC 4.31.
Basic 4r32
Basic432.zip Master 1988 16K BASIC 4.32 automatically relocatable to &B800 with external relocation table.
Basic 5
Basic5.zip
Advanced BASIC BBC/Master Tube 1987 16K
46K BASIC 5 for the BBC/Master with 6502 second processor, also known as Advanced Basic.
Assembler
ARM BASIC 65 BBC/Master
RISC OS Assemblers suitable for assembling the BASIC source files.
Versions

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Authored by J.G.Harston - Last updated: 27-Mar-2018

Download	Platform	Date	Size	Details
Basic 1 Basic1.zip	BBC/Atom/System Source	1981	16K 40K	The original BBC BASIC developed on the Atom/System 5 and supplied with early versions of the BBC Microcomputer in 1981. Source assemblable with ARM BASIC 65 to target either the Atom/System or the BBC.
Basic 1.10		1981	16K
Basic 2 Basic2.zip	BBC Source	1982	16K 55K	Bugs fixed, arithmetic improvement, OSCLI, EQUs and OPENIN/OUT/UP. Source assemblable with ARM BASIC 65 to target the Atom/System, the BBC, and the Commodore 64; to create BASIC 2.00, BASIC 3.00 and BASIC 3.10.
Basic65C02 Basic65C02 Basic65C02	BBC/Master Tube	1982	16K	BBC BASIC 2 with 65C02 assembler. Three different versions. 65C02B.src source for the first version.
Basic 3 Basic 3.10	BBC	1983 1983	16K 16K 16K	US BASIC 3. This is not quite HiBasic3 assembled at &8000. As well as COLOUR and COLOR being transposed there are some minor bugfixes and optimisation.
HiBasic 3	BBC Tube	1983	16K	BASIC 3 relocated to &B800 to run on the 6502 second processor.
C0Basic 3 Squash2.zip	6502 Source	2015	16K 55K	Cut-down BASIC 3 relocated to &C000 to run with a tiny 700-byte kernel. See also 6502SBC for examples with tiny MOSes.
Basic 4 Basic4.zip	Master Source	1984	16K 31K	BASIC 4 as supplied with the Master 128. BASIC 4 will run on the BBC B/B+ or Electron if the 6502 CPU is replaced with a 65C02. Naturally, any MOS- or filing system-specific functions (eg TIME$) will not do anything unless additional software responds to the calls. Source assemblable with Assem or ARM BASIC 65.
HiBasic 4.01	Master Tube	1984	16K	BASIC 4 relocated to &B800 to run on the 6502 second processor, with a two-byte DIM bugfix.
Basic 128	Master	1985	15K	BASIC 4 set up to run from main RAM with shadow screen and four banks of sideways RAM for 64K of program workspace. Version 1.10.
Basic 40	Master Compact	1986	16K	-
Basic 40 (Oli)	Olivetti Compact	1986	16K	-
Basic 41	Master Compact	1986		-
HiBasic 4.30	Master Tube	1987	16K	BASIC 4.30 relocated to &B800 to run on the 6502 second processor.
Basic 4.31	Master	1987	16K	BASIC 4.31.
Basic 4r32 Basic432.zip	Master	1988	16K	BASIC 4.32 automatically relocatable to &B800 with external relocation table.
Basic 5 Basic5.zip Advanced BASIC	BBC/Master Tube	1987	16K 46K	BASIC 5 for the BBC/Master with 6502 second processor, also known as Advanced Basic.
Assembler ARM BASIC 65	BBC/Master RISC OS			Assemblers suitable for assembling the BASIC source files.
Versions